From £5,000 crack repair to £75,000 full underpinning — qualified structural repair across London. Insurance-claim assistance, Building Control compliance, free site visits.
Structural problems are stressful — but they're nearly always fixable. TrustBuilt Projects has handled everything from minor structural crack repair to full house underpinning across London. We work with structural engineers, insurance loss adjusters, and Building Control to get the job done right.
If you've noticed cracks getting wider, doors not closing, floors that aren't level, or a brick chimney coming loose — book a free site visit. We'll tell you honestly whether it's serious or cosmetic. Every quote is transparent, itemised, and based on a proper structural assessment.
We visit your property, measure up, listen to your vision, and ask the right questions about what you need.
Written quote after the free site visit.
All work managed end to end by us. Daily progress updates if you want them, clean working practices throughout.
Final walkthrough, snagging, full clean. We leave your property spotless and stand behind every detail.
These are typical London market ranges for 2026, not a fixed price list — every structural repair depends on a survey, the cause of movement and your property, so treat the figures below as a reference, not a quote.
Ranges typically include structural engineer calculations (£250–£600), Building Control fees (£200–£500), steel/materials, labour and basic making-good. They exclude redecoration, scaffolding on larger jobs, party-wall surveyor fees, planning where required, and any insurance excess on subsidence claims. London figures sit roughly 20–40% above UK national averages.
A hairline settlement crack is cheap to stitch; active subsidence on London clay needs monitoring, drainage checks and often underpinning — a far bigger cost.
Solid Victorian brick and period terraces cost more than modern cavity walls — more invasive work, heavier beams and trickier temporary support all push the price up.
The engineer calculates the exact beam — wider openings or bi-fold spans need heavier RSJs and padstones, raising both supply and installation labour costs.
Tight London streets, shared walls and limited side access make work slower, often needing scaffolding and party-wall agreements that add cost and time.
Most structural repairs are notifiable — structural calcs, Building Control sign-off and, on shared walls, a party-wall surveyor all add unavoidable professional fees.
Re-plastering, refitting kitchens or bathrooms and full redecoration after the structural work is done often costs as much as the repair itself.
Want an exact figure for your project? Book a free site visit → and we’ll send a written quote.
Cracks alone don't necessarily mean subsidence — most cracks are cosmetic. Signs of actual subsidence include: cracks wider than 3mm, cracks that get wider over time, doors/windows that suddenly stick, and visible tilting of the building. A structural engineer's report is the definitive answer — we can arrange one as part of the site visit.
Underpinning costs in London typically range from £25,000 for partial underpinning of one corner to £75,000+ for full house underpinning. The driving factors are depth of work needed, access, and ground conditions. We'll give you a written quote based on the structural engineer's spec.
Often yes — particularly for subsidence, where most home insurance policies provide cover (subject to excess and policy terms). We work with loss adjusters and can manage the claims process for you. Worth contacting your insurer before commissioning major repair work.
Minor remedial work (cracks, ties): 1–2 weeks. RSJ installations and chimney work: 1–3 weeks. Underpinning: 4–12 weeks depending on scope. We give you a clear timeline with the quote.
Yes — structural alterations require Building Control approval, which we handle as part of the project. This ensures the work meets current Building Regulations and provides documentation for your property records.
Usually yes for minor work. For underpinning, most clients stay in the property — we work in sections so the house remains structurally sound throughout. We discuss this honestly at the site visit.