New Basement Construction Underpinning Foundation Waterproofing

Construction of new basement externally within reinforced waterproof concrete walls and reinforced concrete slab. The internal basement was constructed by extending the existing foundations using an underpinning method and the these walls were then lined with a 150mm concrete wall. The ground was battered back and the excavation done in a piecemeal way. We installed the drainage and sump pumps installed for waterproofing. Waterproof concrete was used as the first line of defence and the internal walls were finished with a delta membrane.

Basement – Muswelll Hill London

Basement Construction to form a maisonette spacious one bedroom house in the garden

  • Structural Steel and Concrete Works
  • Concrete retaining and facing walls
  • Contiguous Piling
  • Cavity Wall Drain Waterproofing
  • Block and Beam Flooring
  • Steel Beams Installation
  • Utilities and Drainage
  • Pumped basement drainage