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August 5, 2024

CSMANLTD Underpinning and Basement Construction London

CSMANLTD expertise in underpinning and basement construction London has enabled us to successfully complete a wide range of challenging projects across London. Our case studies demonstrate our ability to deliver complex, high-quality solutions that enhance the stability, functionality, and value of properties. Below are some of our standout projects in underpinning and basement construction, highlighting our commitment to excellence, innovation, and client satisfaction.

Residential Basement Extension in Fulham

Project Overview: A homeowner in Fulham wanted to extend their living space by adding a basement level to their Victorian terraced house. The project required careful planning and execution to ensure the stability of the existing structure while maximizing the new space’s utility and aesthetics.

Challenges:

  • Working within the tight confines of an existing structure.
  • Ensuring the stability of the neighboring properties during excavation and construction.
  • Integrating modern amenities and design elements in a historically significant building.

Solutions:

  • Precision Underpinning: Our team used a phased underpinning approach to stabilize the existing foundation before beginning the excavation. This method ensured the safety and stability of the structure throughout the project.
  • Advanced Excavation Techniques: Utilizing state-of-the-art machinery and careful planning, we minimized disruption and efficiently excavated the new basement space.
  • Customized Design: Collaborating with the homeowner, we designed a basement that included a home theater, gym, and additional living areas, blending modern design with the home’s historical character.

Outcome: The project was completed on time and within budget, resulting in a beautifully integrated basement extension that significantly enhanced the living space and value of the property. The homeowner was delighted with the transformation, praising the seamless integration and high-quality finish.

Commercial Basement Construction in Soho

Project Overview: A commercial property in Soho required additional space for a new restaurant and bar. The client wanted to construct a basement level that would house the kitchen, storage, and additional seating, all while maintaining the building’s structural integrity and minimizing disruption to the busy area.

Challenges:

  • Excavating and constructing a basement in a densely populated, high-traffic urban area.
  • Ensuring minimal disruption to neighboring businesses and pedestrians.
  • Meeting stringent health and safety regulations for a commercial kitchen and public space.

Solutions:

  • Innovative Underpinning: We employed advanced underpinning techniques to support the existing structure while excavating the new basement. This ensured the building’s stability and minimized risk.
  • Efficient Project Management: Careful planning and scheduling allowed us to work efficiently, coordinating with local authorities and stakeholders to minimize disruption and maintain safety.
  • Compliance and Quality: Our team ensured that all aspects of the basement construction met health and safety standards, providing a safe and functional space for the new restaurant and bar.

Outcome: The new basement was successfully integrated into the commercial property, providing the client with a spacious, functional area for their restaurant and bar. The project was completed with minimal disruption to the surrounding area, and the new establishment quickly became a popular spot in Soho.

Underpinning and Basement Conversion in Hampstead

Project Overview: A family home in Hampstead required underpinning and a basement conversion to create additional living space and address foundation issues. The project involved stabilizing the existing structure and converting the damp, unused basement into a habitable area.

Challenges:

  • Addressing existing foundation issues and ensuring long-term stability.
  • Waterproofing the basement to create a dry, comfortable living space.
  • Maintaining the aesthetic and structural integrity of the property.

Solutions:

  • Comprehensive Underpinning: Our team conducted a thorough assessment of the foundation issues and used advanced underpinning techniques to stabilize and strengthen the structure.
  • Effective Waterproofing: We implemented a comprehensive waterproofing system, including tanking and drainage, to ensure the new basement space was dry and habitable.
  • Quality Finishes: The basement conversion included the creation of a new living room, bedroom, and bathroom, all finished to a high standard to match the rest of the home.

Outcome: The underpinning and basement conversion project was a success, providing the family with additional, high-quality living space and ensuring the long-term stability of their home. The new basement area is dry, comfortable, and seamlessly integrated with the rest of the property.

Large-Scale Underpinning Project in Kensington

Project Overview: A large, multi-story building in Kensington required significant underpinning work to address subsidence issues and ensure the structure’s stability. The project involved extensive planning and execution to stabilize the foundation and prevent further movement.

Challenges:

  • Addressing severe subsidence and ensuring the building’s stability.
  • Coordinating a large-scale project in a densely populated urban area.
  • Minimizing disruption to residents and nearby properties.

Solutions:

  • Detailed Assessment and Planning: Our engineers conducted a thorough assessment of the subsidence issues and developed a comprehensive underpinning plan tailored to the building’s specific needs.
  • Phased Underpinning Approach: We used a phased approach to underpin the foundation, working systematically to stabilize the structure while minimizing disruption.
  • Ongoing Monitoring: Throughout the project, we monitored the building for any signs of movement, ensuring that the underpinning work was effective and the structure remained stable.

Outcome: The large-scale underpinning project was completed successfully, stabilizing the building and preventing further subsidence. The project was managed efficiently, with minimal disruption to residents and neighboring properties. The building is now secure, with a stable foundation that ensures its longevity.

Conclusion

CSMANLTD’s expertise in underpinning and basement construction has enabled us to deliver outstanding results across a range of challenging projects. Our commitment to quality, innovation, and client satisfaction is evident in every project we undertake. Contact us today to learn how our underpinning and basement construction services can enhance the stability and value of your property.

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CSMAN LTD0 commentBasement Construction, Case Studies, Construction, Main, Underpinning
August 3, 2024

CSMANLTD Design and Build Services London

The Design and Build approach has emerged as a popular method for delivering efficient, cost-effective, and seamless project execution. CSMANLTD specialises in offering comprehensive Design and Build services in London, ensuring that every project we undertake is executed with precision and excellence. Our integrated approach combines innovative design with expert construction, providing clients with a streamlined process from concept to completion.

Understanding Design and Build

  1. What is Design and Build? Design and Build is a project delivery method where a single entity is responsible for both the design and construction phases of a project. This approach fosters collaboration, reduces project timelines, and enhances accountability, as the same team oversees the entire process from start to finish.
  2. Benefits of Design and Build:
  • Single Point of Responsibility: With one team managing the entire project, communication is streamlined, and accountability is clear.
  • Enhanced Collaboration: Designers and builders work together from the outset, ensuring that design intentions are fully realized in the construction phase.
  • Reduced Timelines: Overlapping design and construction phases can significantly shorten project timelines, allowing for quicker completion.
  • Cost Efficiency: Integrated teams can better manage budgets, reduce waste, and avoid costly design changes during construction.

Our Design and Build Services

  1. Initial Consultation and Concept Development: Our process begins with a thorough consultation to understand your vision, requirements, and budget. We collaborate with you to develop a detailed project brief that guides the design phase.
  2. Architectural Design: Our team of experienced architects creates innovative and functional designs that align with your vision. We use advanced design software to produce detailed drawings and 3D models, allowing you to visualize the final outcome.
  3. Engineering and Planning: Our engineers ensure that the designs are structurally sound and comply with all relevant building regulations. We handle all planning permissions and regulatory approvals, ensuring a smooth transition to the construction phase.
  4. Construction Management: With the design finalized, our construction team takes over, managing every aspect of the build. Our project managers ensure that construction is carried out efficiently, safely, and to the highest quality standards.
  5. Quality Assurance and Handover: Throughout the construction process, we conduct rigorous quality checks to ensure that the project meets our high standards. Upon completion, we provide a detailed handover, ensuring that every aspect of the project meets your expectations.

Why Choose CSMANLTD for Design and Build?

  1. Expertise and Experience: With years of experience in the construction industry, CSMANLTD, has the expertise to manage complex Design and Build projects. Our team comprises skilled architects, engineers, and builders who are committed to delivering exceptional results.
  2. Integrated Approach: Our Design and Build approach fosters collaboration and innovation, ensuring that every project is executed seamlessly from concept to completion. By integrating design and construction, we can deliver projects more efficiently and effectively.
  3. Customized Solutions: We understand that every project is unique. Our Design and Build services are tailored to meet your specific needs, preferences, and budget. Whether you’re constructing a residential home, a commercial facility, or an industrial building, we provide solutions that align with your vision.
  4. Commitment to Quality: At CSMANLTD, quality is at the core of everything we do. We adhere to stringent quality control measures throughout the design and construction phases, ensuring that every project meets the highest standards of excellence.
  5. Client-Centric Approach: We prioritize our clients’ needs and satisfaction. Our transparent communication, proactive problem-solving, and dedication to exceeding expectations ensure a positive and rewarding experience for every client.

Conclusion

Choosing CSMANLTD. for your Design and Build project in London means entrusting your vision to a team of dedicated professionals committed to transforming ideas into reality. Our integrated approach, combining innovative design with expert construction, ensures a seamless and efficient project delivery from start to finish. Contact us today to learn more about our Design and Build services and how we can help you achieve your construction goals with precision and excellence.

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CSMAN LTD0 commentArchitectural Design, Basement Construction, Concrete Frames, Construction, Construction Management, Design and Build, Innovation, Interior, Planning Applications, Steel Frames, Structural Engineering, sub structures, Super Structures, Underpinning
August 3, 2024

Piled Foundations: Ensuring Stability and Strength for London and Home Counties

In the realm of construction, foundations play a pivotal role in the stability and longevity of any structure. At CSMANLTD, we specialize in providing advanced piled foundation services in London and the Home Counties, ensuring that buildings stand the test of time. Our expertise in various types of piled foundations, including SFA (Screw Fast Anchor) and CFA (Continuous Flight Auger) piles, allows us to deliver customised solutions for diverse construction needs.

Understanding Piled Foundations

  1. What Are Piled Foundations? Piled foundations are deep foundations used to transfer the load of a structure to deeper, more stable soil layers. Unlike shallow foundations, which distribute the load near the surface, piled foundations extend deep into the ground, providing enhanced stability, especially in areas with poor soil conditions.
  2. Types of Piled Foundations: At CSMANLTD, we offer a range of piled foundation solutions to suit various construction scenarios:
  • Screw Fast Anchor (SFA) Piles: SFA piles are screw-like foundations driven into the ground without the need for pre-drilling. They are ideal for projects requiring quick installation and minimal soil displacement. SFA piles are particularly suitable for residential and commercial buildings where space is limited.
  • Continuous Flight Auger (CFA) Piles: CFA piles involve drilling into the ground using a continuous flight auger, which is then filled with concrete as the auger is withdrawn. This method is advantageous for its low noise and vibration, making it ideal for urban areas and sensitive environments.

Why Choose Piled Foundations?

1. Enhanced Load-Bearing Capacity: Piled foundations provide superior load-bearing capacity compared to traditional shallow foundations. By transferring the building load to deeper, more stable soil layers, they ensure that the structure remains stable and secure, even in challenging soil conditions.

2. Versatility: Piled foundations are versatile and can be used for a wide range of construction projects, from residential homes to large commercial buildings. They are particularly useful in areas with weak or variable soil conditions where traditional foundations may not be suitable.

3. Minimal Disturbance: Both SFA and CFA piles offer the advantage of minimal disturbance to the surrounding area. SFA piles require no pre-drilling, reducing soil displacement, while CFA piles generate low noise and vibration, making them ideal for urban settings and projects near existing structures.

Our Piled Foundation Services

1. Site Assessment and Planning: We begin every project with a thorough assessment of the site to determine the most suitable piled foundation solution. Our team of experts evaluates soil conditions, load requirements, and other factors to develop a customized foundation plan.

2. Design and Engineering: Our skilled engineers design bespoke piled foundation solutions tailored to the specific needs of your project. We use advanced software and engineering principles to ensure that our designs provide optimal stability and load distribution.

3. Installation and Construction: CSMANLTD employs state-of-the-art equipment and techniques to install piled foundations efficiently and accurately. Our team manages the entire installation process, ensuring that each pile is placed precisely and securely.

4. Quality Assurance and Compliance: Quality is at the forefront of everything we do. We conduct rigorous quality checks throughout the installation process to ensure that our piled foundations meet the highest standards of safety and performance. Our services comply with all relevant building regulations and industry standards.

Benefits of Choosing CSMANLTD for Piled Foundations

1. Expertise and Experience: With years of experience in the construction industry, CSMANLTD, has the expertise to handle complex piled foundation projects. Our team of professionals is trained in the latest techniques and technologies, ensuring top-quality results.

2. Comprehensive Services: From initial site assessment to final installation, we offer comprehensive piled foundation services that cover every aspect of your project. Our end-to-end approach ensures seamless coordination and execution.

3. Customized Solutions: Every project is unique, and we pride ourselves on delivering customized solutions that meet your specific needs. Whether you’re building a new home or a commercial facility, we provide tailored piled foundation solutions that ensure stability and longevity.

4. Commitment to Quality: At CSMANLTD, we are committed to delivering the highest quality of service. Our attention to detail and dedication to excellence ensure that your construction project is built on a foundation of trust and reliability.

Conclusion

When it comes to ensuring the stability and strength of your construction project in London and the Home Counties, piled foundations are an excellent choice. At CSMANLTD, our expertise in SFA and CFA piled foundation solutions guarantees that your building stands firm on solid ground. Contact us today to learn more about our piled foundation services and how we can help you achieve your construction goals with precision and excellence.

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CSMAN LTD0 commentBasement Construction, Construction, Foundations, Piled Foundations, Structural Engineering, sub structures, Uncategorized
August 3, 2024

Comprehensive Groundworks and Foundation Services in London

In the construction world, the foundation of a building is paramount to its stability and longevity. At CSMANLTD, we offer a range of groundworks and foundation services in London, ensuring that every project begins on solid ground. Our expertise extends to concrete works and drainage solutions, making us a one-stop shop for all your construction needs. With a commitment to quality and precision, we ensure that every phase of your project is executed flawlessly.

Understanding Groundworks and Foundations

  1. What Are Groundworks?Groundworks involve all the preliminary work required to prepare a construction site for building. This includes clearing the site, excavating, laying foundations, and installing essential services like drainage and utilities. Effective groundworks set the stage for a successful construction project by providing a stable base for the building structure.
  2. The Importance of Foundations: The foundation is the most critical part of any building as it bears the load of the structure above. A well-constructed foundation distributes the weight evenly and ensures the stability and durability of the building. Poor foundation work can lead to structural issues, including subsidence and cracking.

Our Services at CSMANLTD –

  1. Groundworks: Our comprehensive groundworks services ensure your construction site is properly prepared for building. This includes site clearance, excavation, and grading, which are essential for creating a level base and preventing future structural problems. We use advanced machinery and techniques to handle projects of any scale efficiently.
  2. Foundation Construction: We specialise in constructing robust foundations that support various types of buildings. Our foundation services include:
  • Strip Foundations: Suitable for buildings with load-bearing walls, strip foundations involve creating continuous strips of concrete to support the structure.
  • Raft Foundations: Used for buildings on weaker soils, raft foundations spread the load across a large area, providing added stability.
  • Piled Foundations: Ideal for sites with poor soil conditions, pile foundations involve driving deep piles into the ground to support the building load.
  1. Concrete Works: Our concrete works services cover a wide range of applications, including:
  • Concrete Slabs: We pour and finish concrete slabs for floors, driveways, and pavements, ensuring durability and a smooth finish.
  • Retaining Walls: Our team constructs concrete retaining walls to provide support for soil and prevent erosion, which is crucial for sloped sites.
  • Structural Concrete: We handle all aspects of structural concrete work, ensuring that your building’s framework is strong and reliable.
  1. Drainage Solutions: Effective drainage is vital for preventing water accumulation and damage to your property. Our drainage services include:
  • Surface Water Drainage: We design and install systems to manage rainwater and prevent flooding.
  • Foul Water Drainage: Our team ensures that waste water is efficiently removed from your property, maintaining hygiene and compliance with local regulations.

Soakaways and Sumps: We construct soakaways and sumps to manage excess water on your property, reducing the risk of waterlogging and damage.

Why Choose CSMANLTD?

  1. Expertise and Experience: With years of experience in the construction industry, CSMANLTD, has the expertise to handle all aspects of groundworks and foundation services. Our skilled professionals use the latest techniques and equipment to ensure the highest standards of quality and safety.
  2. Comprehensive Services: We offer a full range of services, from initial site preparation to final construction. This comprehensive approach ensures that all aspects of your project are seamlessly integrated and executed efficiently.
  3. Customized Solutions: Every project is unique, and we tailor our services to meet your specific needs. Whether you’re building a residential home or a commercial facility, we provide customised solutions that align with your requirements and budget.
  4. Commitment to Quality: At CSMANLTD, we are committed to delivering top-quality results on every project. Our attention to detail and dedication to excellence ensure that your construction project is built to last.

Conclusion

When it comes to construction in London, starting with a solid foundation is crucial. At CSMANLTD, our comprehensive groundworks, foundation, concrete works, and drainage services ensure that your project begins on the right foot. With our expertise and commitment to quality, we provide reliable and efficient solutions for all your construction needs. Contact us today to learn more about our services and how we can help you achieve your construction goals with precision and excellence.

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CSMAN LTD0 commentBasement Construction, Construction, Design and Build, Foundations, Piled Foundations, Structural Engineering, sub structures, Underpinning
August 3, 2024

Expert Demolition Services in London: Transforming Spaces Safely and Efficiently

When it comes to reshaping the urban landscape of London, demolition plays a crucial role. Whether it’s making way for new constructions, removing unsafe structures, or reconfiguring existing spaces, professional demolition services are essential. At CSMANLTD, we specialise in providing comprehensive demolition services for both commercial and residential projects. Our expertise ensures that each demolition project is executed safely, efficiently, and with minimal disruption.

Understanding Demolition Services

  1. What is Demolition? Demolition involves the safe and systematic dismantling of buildings and structures. This process can range from complete demolition, where the entire structure is removed, to partial demolition, which involves removing specific parts of a building. Demolition is necessary for various reasons, including redevelopment, structural instability, or reconfiguration of spaces.
  2. Types of Demolition Services: At CSMANLTD, we offer a wide range of demolition services tailored to meet the unique needs of our clients:
  • Commercial Demolition: We handle demolition projects for commercial properties, including office buildings, retail spaces, warehouses, and industrial facilities. Our team ensures that the demolition is conducted efficiently, with minimal impact on surrounding areas.
  • Residential Demolition: From single-family homes to multi-story residential buildings, our residential demolition services cater to all types of housing structures. We prioritize safety and precision, ensuring that the demolition process is smooth and hassle-free.
  • Temporary Works: Temporary works involve creating temporary structures or supports during the demolition process to ensure safety and stability. This can include shoring, propping, and temporary bracing to prevent structural failures during demolition.
  • Soft Demolition: Soft demolition focuses on the removal of non-structural elements, such as interior partitions, ceilings, flooring, and fixtures. This type of demolition is often used in renovation projects where the main structure remains intact.

Why Choose CSMANLTD for Demolition Services?

  1. Expertise and Experience: With years of experience in the demolition industry, CSMANLTD has a team of skilled professionals well-versed in the latest demolition techniques and adheres to the highest standards of safety and efficiency. We manage each project from start to finish, ensuring that all aspects are handled with care and precision.
  2. Comprehensive Services: Our demolition services cover every stage of the project, from initial planning to final clearance. Our offerings include:
  • Site Assessment and Planning: We conduct a thorough assessment of the site and develop a detailed demolition plan that considers all safety, environmental, and logistical factors.
  • Obtaining Permits: We handle all necessary permits and regulatory requirements, ensuring that your demolition project complies with local laws and regulations.
  • Execution and Management: Our team manages the entire demolition process, including the use of advanced equipment and techniques to ensure efficient and safe demolition.
  • Waste Management and Recycling: We prioritize sustainable practices by managing waste responsibly and recycling materials whenever possible.
  1. Safety and Compliance: Safety is our top priority at CSMANLTD. We adhere to stringent safety protocols and industry best practices to ensure the well-being of our team, clients, and the surrounding community. Our demolition projects comply with all relevant health and safety regulations, providing peace of mind to our clients.
  2. Customized Solutions: Every demolition project is unique, and we tailor our services to meet your specific needs. Whether you require a complete demolition or selective demolition, we provide customized solutions that align with your goals and budget.

Benefits of Professional Demolition Services

  1. Efficient Project Execution: Professional demolition services ensure that your project is completed efficiently and within the stipulated timeline. Our expertise allows us to anticipate challenges and address them proactively, minimizing delays and disruptions.
  2. Enhanced Safety: By entrusting your demolition project to professionals, you ensure that all safety measures are in place. Our team is trained to handle hazardous materials and navigate complex demolition scenarios, reducing the risk of accidents and injuries.
  3. Cost-Effective Solutions: Professional demolition services can save you money in the long run by preventing costly mistakes and ensuring that the project is completed correctly the first time. Our efficient processes and waste management practices also contribute to cost savings.

Conclusion

At CSMANLTD, we are dedicated to providing top-tier demolition services in London, transforming spaces with precision and care. Whether you’re undertaking a commercial redevelopment, a residential renovation, or need temporary works, our team has the expertise to deliver exceptional results. Contact us today to learn more about our demolition services and how we can help you achieve your construction goals safely and efficiently.

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CSMAN LTD0 commentConstruction, Construction Management, Foundations, Industrial, Structural Engineering, sub structures, Super Structures, Superstructures
August 3, 2024

Enhancing Structural Integrity with Expert Underpinning Services in London

In the realm of construction, ensuring the stability and durability of a building’s foundation is paramount. At CSMANLTD, we specialise in providing comprehensive underpinning services in London, designed to reinforce and stabilise foundations for both residential and commercial properties. Our expertise in construction underpinning, box underpinning, and mini pile underpinning ensures that your structure remains safe, secure, and long-lasting.

Understanding Underpinning

  1. What is Underpinning? Underpinning is a construction technique used to strengthen and stabilize the foundation of an existing building. This process becomes necessary when the original foundation is no longer capable of supporting the structure, often due to soil subsidence, changes in soil conditions, or additional loads from building modifications.
  2. Types of Underpinning: At CSMANLTD, we offer three primary types of underpinning services:
  • Construction Underpinning: This traditional method involves excavating sections below the existing foundation and pouring concrete to extend the foundation depth and width. It’s ideal for enhancing the load-bearing capacity of the structure.
  • Box Underpinning: This technique involves creating a reinforced concrete box around the existing foundation. It provides additional support and is often used in situations where the foundation needs extensive reinforcement.
  • Mini Pile Underpinning: Mini piles are small-diameter, deep foundation elements that transfer the building load to deeper, more stable soil layers. This method is suitable for sites with limited access or where deep excavation is impractical.

Why Choose CSMANLTD for Underpinning?

  1. Expertise and Experience: CSMANLTD boasts a team of highly skilled professionals with extensive experience in underpinning projects across London. Our expertise ensures that each project is executed with precision, adhering to the highest standards of quality and safety.
  2. Customized Solutions: We understand that every building is unique, and so are its underpinning needs. Our team conducts a thorough assessment of your property’s foundation and provides tailored underpinning solutions that address specific issues. Whether it’s addressing subsidence, increasing load capacity, or preparing for a new construction, we have the expertise to deliver customised results.
  3. Comprehensive Services: Our underpinning services encompass every stage of the project, from initial assessment to completion. Our offerings include:
  • Site Evaluation and Assessment: We start with a detailed analysis of the site’s soil conditions, foundation status, and structural requirements.
  • Design and Planning: Our engineers design a bespoke underpinning solution that aligns with your building’s needs and complies with local regulations.
  • Construction and Implementation: We manage the entire construction process, ensuring minimal disruption to your property and timely completion of the project.
  • Quality Assurance: Rigorous quality checks are conducted throughout the project to ensure the highest standards of workmanship and safety.
  1. Advanced Techniques and Technology: At CSMANLTD, we utilise the latest techniques and technologies in underpinning to deliver superior results. Our methods are designed to minimiSe disruption to your property while ensuring optimal structural integrity.

Benefits of Underpinning

  1. Enhanced Structural Stability: Underpinning reinforces your building’s foundation, providing increased stability and reducing the risk of structural damage. This is particularly important in areas prone to soil subsidence or seismic activity.
  2. Increased Property Value: A properly underpinned building is more attractive to potential buyers and investors. It signifies a well-maintained property with a solid foundation, thereby increasing its market value.
  3. Flexibility for Future Modifications: Underpinning allows you to make future modifications or additions to your building without compromising its structural integrity. Whether you’re planning an extension or a renovation, a strong foundation provides the necessary support.

Conclusion

At CSMANLTD, we are committed to providing top-notch underpinning services in London, ensuring the safety and stability of your property. Our expertise in construction underpinning, box underpinning, and mini pile underpinning enables us to deliver customised solutions that meet your specific needs. Trust us to enhance your building’s foundation and secure its future. Contact us today to learn more about our underpinning services and how we can help reinforce your property’s structural integrity.

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CSMAN LTD0 commentBasement Construction, Construction, Construction Management, Foundations, Piled Foundations, Structural Engineering, sub structures, Underpinning
April 19, 2024

Basement Construction London – What You Need to Know 

Basement Construction London: Adding extra living space to your home can be a great way to increase its value and make it more appealing to potential buyers. But, with space at a premium in London, it’s important to consider all of your options before you start construction. 

Many people in London choose to build basements in their homes, which are useful for a wide range of purposes. 

Underpinning basement construction 

Underpinning basement construction: In many homes today it is common to find a basement that has been designed, either during construction or at a later point by the owners, to function as a fully functional addition to the home. In some cases, the basement is used as a recreation room, while in others it may contain a bedroom or two (especially for teenagers), a bathroom, a kitchenette and one or more closets. 

The most important factor in determining whether your basement requires underpinning is a structural inspection. If you notice cracks in the foundation walls that are wider than a quarter inch, diagonal cracks, or movement of the building from its original position, then it is time to call in an expert. In most cases, underpinning will be necessary to correct faulty or unstable foundations. 

This process involves digging out sections of the existing foundations and filling them with concrete, or using piles driven into the ground to transfer load to deeper supporting soil. It is a highly specialist operation and should only be undertaken by an experienced contractor. 

Another benefit of underpinning is that it creates more headroom, making it possible to install better lighting fixtures. This in turn allows more natural light into the basement. In addition, homeowners are able to access the mechanics of their basement such as plumbing and insulation works, giving them the opportunity to repair any problems. 

Garden Basement Construction 

Creating extra space in your home can be a challenging task. But with the right basement construction contractor, your project can become a reality. Look for contractors that are reputable and have experience in the industry. You should also choose a company that offers competitive pricing. They should provide clear, detailed estimates and timelines to complete your project. Additionally, they should be willing to answer any questions you may have. 

The cost of Garden Basement Construction depends on the size and depth of the basement. To minimize costs, opt for a simple design and avoid constructing basements that will require extensive excavation work. It is also important to select the correct materials for your project. For example, choosing vinyl or laminate flooring will help you save money compared to more expensive options. 

Before beginning the construction of your basement, consult with your local council about their policies on basement extensions. The stance of each council will vary, but some will allow you to build a basement without planning permission, while others may require that you submit a full application. 

If you need to submit a full application, make sure that you follow all of the guidelines carefully. Additionally, it is essential to service a Party Wall Notice before starting construction work to ensure that your neighbours are aware of the work being carried out. 

Basement Construction London 

When it comes to basement construction in London, there are a number of things that need to be considered. For instance, you’ll want to make sure that you hire a contractor with the right experience and expertise. You’ll also want to choose a contractor that has good references and a proven track record. Finally, you’ll want to make sure that the contractor is licensed and insured. 

One of the best ways to get a quote for your basement is to contact a specialist construction company. These companies have the knowledge and expertise to create a basement that is both functional and aesthetically pleasing. They can also help you make sure that your basement is in compliance with local codes and regulations. 

Another important step is to consult with a structural engineer. This expert will design the basement shell and core. They will take into account all the survey information available and your project requirements. They will also create a detailed schedule and plan for the construction process. This will ensure that your basement is built to the highest standards. 

Finally, it’s a good idea to consult with your neighbours before starting any basement excavations. This will prevent them from being surprised by diggers and jackhammers on their doorstep. It’s also a good idea to warn them that the work may cause some noise and disruption, and to explain how they can mitigate this. 

Until recently, London’s boroughs had little in the way of regulatory guidance to shape and control residential basement construction. Some had a specific policy in place, but most did not. The result was a wave of excavations. 

It was a trend that made headlines with stories of noise complaints, vibration, and even subsidence caused by retaining wall piling operations and basement excavation. But even as the stories rolled in, the excavations continued. 

There were even reports of entombed JCBs left underneath oligarch’s homes because it was too risky and expensive to lift them out (although we think there might be a metaphor in there somewhere). The media seemed to get in on the action, publishing articles like How to pull off a stunning three-storey basement extension or drooling over Gordon Ramsay’s PS7m renovation. 

But there were also plenty of people who were irked by the disruption and expense. Some complained about their ‘selfish’ neighbours who were digging down below their properties while they worked, causing them to be constantly disturbed by noise and dust. Others blamed the basement works for their own structural problems, such as a subsidence claim by one celebrity. 

But the fact is, there are ways to minimise the impact on your neighbours and still get those amazing extra rooms you want. The key is to do your homework and talk to your neighbours before you start work, as well as to understand how much the addition will add to your property in terms of additional square metres. 

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CSMAN LTD0 commentBasement Construction, Basement Construction Under Existing House London, Construction, Construction Management, Design and Build, Foundations, Piled Foundations, Structural Engineering, sub structures, Superstructures, Underpinning
August 25, 2023

Alternative segment lift for HS2’s Colne Valley Viaduct minimises local disruption

Construction of High Speed 2’s (HS2’s) 3.4km long Colne Valley Viaduct has reached a major milestone with a key 40m long span lifted into place over a local road during a three week closure of the route.

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CSMAN LTD0 commentCase Studies, Civil Engineering, Construction, Construction Management, Design and Build, Foundations, Industrial, Piled Foundations, Steel Frames, Structural Engineering, sub structures, Superstructures
August 25, 2023

Marathon’ bridge build completed on HS2

Contractors on HS2 have completed a ‘marathon’ bridge build at Streethay near Lichfield involving 18 specialist construction companies.

 

 

Work involved excavating 14,000 tonnes of earth, building a 140 metre retaining wall and moving a 2,600 tonne bridge deck 130 metres into place under the South Staffordshire freight railway.

The work was carried out during a 10 week blockade. It was completed by HS2’s civils contractor in the West Midlands, Balfour Beatty VINCI, and designers Mott MacDonald as part of a Design Joint Venture with SYSTRA (MMSDJV), together with teams from 18 specialist supply chain companies.

At the end of July, the 2,600 tonne bridge deck, which had been cast on land adjacent to the railway was moved 130 metres into position using self-propelled modular transporters.

Since then, each side of the bridge was backfilled, the rail tracks were reinstated, with the railway line was successfully handed back to Network Rail last week and now reopened.

The 25 metres long and 18 metres wide Streethay overbridge sits within HS2’s Streethay cutting and will enable HS2 trains to travel under the existing railway between Birmingham and Crewe.

Through design development, Mott MacDonald engineers were able to reduce the total length of wall structures for the railway at Streethay from 1.6 kilometres to 420 metres, meaning 80% less concrete is needed – saving around 420,000 tonnes of carbon, supporting HS2’s ambition to cut carbon on the project.

The Streethay bridge sits on top of the larger 420 metre long retaining wall structure which will have two additional bridges crossing it – the south bound A38 slip road bridge, and the Rykneld Bridge which carries the A38 north bound slip road and the A38 north and south bound carriageway.

At its peak, over 150 people worked on the complex construction operation, with teams from 18 specialist companies, delivering design, surveys, piling works, bridge build, concrete pouring, crane operations, reinforcements, modular transportation, track and systems removal and reinstatement.

The work was delivered in parallel to the construction of the nearby Fulfen Wood bridge, which involved moving a giant 6,200 tonne single span structure under the West Coast Main Line – the UK’s heaviest drive to install an intersection bridge.

David Millar, Rail Interface Manager at Balfour Beatty VINCI said: “The successful delivery of this complex and challenging piece of engineering near Lichfield is another proud moment for Balfour Beatty VINCI on the HS2 project.

“It’s only been possible thanks to the skill, dedication and support shown by the project team over the past few years, including our supply chain. Together, we’ve had to work around existing transport infrastructure, including the South Staffordshire freight railway and the A38, making this achievement even more rewarding.”

Prior to the railway blockade, retaining walls were installed on either side of the railway, enabling the areas to be excavated. The bridge deck was constructed on land adjacent to the existing railway, 130 metres from its final position.

Once the railway was closed to freight trains, the track and embankment were removed. Bachy Soletanche Balfour Beatty Ground Engineering joint venture then installed an additional 76 secant piles measuring 1.3 metres diameter and 30 metres deep, linking to the piles they installed prior to the blockade, to create two retaining walls which act as the walls for the bridge.

A concrete capping beam was installed over the retaining walls, then the bridge was moved into place using self-propelled modular transporters with 344 wheels. Concrete was poured to attach the deck to the capping beam, the embankment was back filled using 2,500 tonnes of structural backfill, on either side of the bridge, before the railway line was reinstated.

The 18 companies which delivered the project were:

J. Murphy & Sons constructed the bridge deck and the concrete elements during the blockade
Bachy Soletanche Balfour Beatty Ground Engineering JV (SB3) undertook all piling works, both before and during the blockade
The bridge parapets were made by Explore precast
Podtrak and RSS Infrastructure delivered rail systems work
Balfour Beatty VINCI delivered earthworks
Pile break-down was by Pile Breaking Systems UK Ltd
Trackway supplied by TPA
Jacking the structure and modular transportation by Mammoet UK
Survey works track monitoring by Aecom
Crane supply by King Lifting supported by BBV lifting teams
Concrete provided by CEMEX
Reinforcement by ROM – specialist reinforcement manufacturers
Temporary works by RMD
Permanent works design by Design JV (Mott Macdonald and Systra)
Temporary works design by Taylor Woodrow

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CSMAN LTD0 commentCase Studies, Civil Engineering, Concrete Frames, Construction, Construction Management, Design and Build, Factory, Foundations, Industrial, Piled Foundations, Planning Applications, Steel Frames, Structural Engineering, sub structures, Superstructures
August 25, 2023

Innovation Showcase | Track-free travelling formwork drives pace of HS2 green tunnel work

Innovative moving formwork is helping to speed construction of High Speed 2’s Copthall Tunnel in north west London.

Copthall Tunnel is one of five green tunnels being built along Phase 1 of High Speed 2 (HS2) between London and Birmingham.

Situated between HS2’s Northolt Tunnel and the Colne Valley Viaduct, the 880m long reinforced concrete Copthall Tunnel will blend into
its natural surroundings, covered with trees and plants once construction is complete.

The project is being delivered by Skanska Costain Strabag Joint Venture, with Kilnbridge appointed to complete the reinforced concrete works. Making the tunnel a concrete reality has been possible with custom formwork travellers engineered by Peri’s specialist infrastructure team.

As the travellers were expected to be in use over an 18 month period, the main drivers influencing their design were durability, productivity and sustainability.

To support the specified construction sequence, Peri’s engineers designed two carriages which enabled the site team to cast the walls and roof slab simultaneously, ultimately accelerating the programme. These carriages comprised four units in total, two for the wall and two for the roof.

The carriages are designed to reduce material, manual labour and craneage as the main operations such as striking, positioning and travelling are completed hydraulically.

The wall forms are built from special modular steel panels. Each set is designed to build 20m long and 7.5m high walls.

The panels are suspended from a carriage which is designed using off-the-shelf components from Peri’s Variokit range, with some specially fabricated connection parts. Variokit rails provided additional support for the formwork, reducing through ties to less than half the quantity required in a traditional panel system.

“We’ve been able to save around five days per wall in comparison to traditional formwork systems, as we can complete installation and prepare the system for concreting in one day,” says Kilnbridge project manager Teresa Martin.

The internal and external formwork on the wall carriages raise, lower and retract hydraulically, eliminating crane use and reducing labour requirements and cycle time by over 80%.

The roof carriage is built from a mix of special and standard components. In addition to fully supporting the rebar and concrete load, it features hydraulic cylinders which enable the traveller to be lowered, collapsed, pushed under the carriage in front and repositioned to allow rebar fixing and pouring operations to be concurrent. 

Peri senior sales engineer Dan Biggs says: “Special steel formwork was ideal for this project as the forms can be reused up to 30 times, so there is an obvious material saving advantage in addition to time savings, as panels do not need refacing, unlike a
plywood faced system.”

Following on from the installation of the roof traveller, the next steps will be progressing the tunnel so all three elements – base slab, tunnel walls and roof slab progress concurrently without conflicting. Tunnel construction is expected to be completed by February 2025. 

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CSMAN LTD0 commentCivil Engineering, Concrete Frames, Construction, Construction Management, Design and Build, Factory, Foundations, Industrial, Main, Piled Foundations, Steel Frames, Structural Engineering, sub structures, Super Structures, Superstuctures, Tunnel
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