Underpinning

Service

What we deliver

We deliver traditional mass-concrete and beam-and-base underpinning to existing properties — typically as part of new basement construction beneath occupied terraced and semi-detached houses across London.

Every scheme is built strictly to the engineer’s sequence, with hit-and-miss bays, dry-pack and grout-up to ensure full load transfer to the new foundation. Where needed we install temporary propping in parallel with the underpinning to maintain stability throughout.

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Typical works in this package

  • Mass-concrete underpinning of party walls and existing footings
  • Beam-and-base underpinning to engineer’s detail
  • Sequenced hit-and-miss bays with dry-pack and grouting
  • Temporary propping and needle works in parallel
  • Working in occupied properties with party-wall awareness
  • Coordination with basement excavation and waterproofing