Service · London
Structural Work in London
The hardest part of any renovation is rarely visible once it's finished — the steel beams, structural openings, underpinning and load redistribution that make modern open-plan living possible. We've been doing it for 10 years across London.

Why Prime Build
What you get when you
work with us.
The same in-house team, the same five-stage process, the same 10-year guarantee — across every service we offer.
- Steel beam (RSJ) installations to engineer's specification
- Load-bearing wall removals & structural openings
- Underpinning, foundation strengthening and basement excavation
- Chimney removals, breast removals and re-supporting
- Building Control sign-off included on every job
Our process
A five-stage process built to remove surprises.
01
Survey
On-site assessment + structural engineer's calculations.
02
Design
Steel schedule, propping plan and Building-Control submission.
03
Prep
Propping, structural support, area isolation.
04
Install
Steel install, pad-stones, re-supporting, plate work.
05
Sign-off
Building Control inspection, certificate issued, structure released.
Recent structural work
Selected projects.

Extension · Hampstead, NW3
Hampstead Extension — Steel Frame & Floor Joists

Renovation · Chiswick, W4
Chiswick Refurbishment — Steel & First Fix

Extension · Wembley Park, HA9
Wembley Side-Return — Structural Opening

New Build · Hampstead, NW3
Hampstead New Build — Cavity Wall Blockwork
Frequently asked questions
Answers about structural work.
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