Free tool · No sign-up required

Foundation Repair Cost Estimator

Foundation repair costs are driven by cause and tier, not square footage. Pick the scenario closest to yours for an indicative London range.

What does foundation repair cost? It depends which tier your case sits on: cause-removal plus superstructure repair (£2,000–£8,000) resolves most investigated movement; masonry restitching (£500–£3,000) where movement has arrested; resin injection (£5,000–£15,000+) where soils suit; underpinning (£10,000–£50,000+) where foundations are genuinely inadequate. Investigation places you on the right tier — this estimator shows what each tier means in money.

Estimate by scenario

Diagnosed (or suspected) scenario

Extent

Important: this tool provides general, indicative guidance only. It is not a survey, a diagnosis or a quotation, and it cannot assess your specific property. Figures are broad London planning ranges; the appointed professional confirms actual fees and any repair costs are confirmed by contractors pricing an engineered specification. If you are concerned about your property, request a structural assessment or call.

FAQ

Frequently asked questions

Why can't I get a price without investigation?

Because identical cracks can need a £2,500 drain repair or a £30,000 underpinning scheme — the cause decides, and the cause isn't visible from the crack. Investigation is how you avoid paying for the wrong tier.

Is the cheapest quote the best?

Only if all quotes price the same engineered specification. Unspecified quotes diagnose differently and can't be compared; the low bid treating the wrong cause is the most expensive option available.

Will insurance cover my tier?

Valid subsidence claims ordinarily fund investigation and the proportionate remedy — whichever tier the evidence supports — less the excess (commonly £1,000). Maintenance-stage drain repairs before damage occurs are yours.

Want a real answer for your property?

Tools guide; assessments answer. Call or send an enquiry and we will arrange the right specialist help.

Call +44 7426 946220 Request a Structural Assessment