If you’ve spotted cracks in walls or uneven floors, the first question is always the same: how much will fixing the foundation set you back? The answer isn’t a one‑size‑fits‑all number. It depends on the type of damage, the method used, and where you live in the UK. Below we break down the main cost drivers, give you a realistic price range, and share simple ways to keep the expense manageable.
Type of damage. A shallow hairline crack often costs less than a serious settlement that has shifted the whole slab. Minor repairs might run a few hundred pounds, while structural fixes can climb into the thousands.
Repair method. Common techniques include pier and beam underpinning, carbon fibre reinforcement, and concrete slab replacement. Pier underpinning is popular for moderate settlement and typically costs £80‑£120 per meter of pier. Carbon fibre strips are faster but can be pricier per square metre.
Access and site conditions. If the work area is cramped, has lots of landscaping, or requires scaffolding, labour time goes up. Expect an extra 10‑20% on the base price for difficult access.
Location. London and the South East often have higher labour rates than the North. A national average for a full underpinning job sits around £1,200‑£2,500, but in London it can exceed £3,000.
Here’s a quick cheat‑sheet of what most homeowners pay:
These figures include materials, labour, and basic disposal. Anything beyond that—like structural engineering reports or specialist waterproofing—adds extra costs.
Before you sign a contract, ask the contractor for a detailed estimate that breaks down each line item. A clear quote helps you spot hidden fees and compare different offers.
Get multiple quotes. Even in a small town, prices can vary 20‑30% between firms. Collect at least three quotes and compare scope, not just total price.
Do a pre‑assessment. Simple steps like draining water away from the foundation or fixing minor drainage issues can prevent larger problems later. A contractor may lower the bill if they don’t have to address water ingress.
Consider phased repairs. If the budget is tight, tackle the most critical areas first. You can spread out the work over a few months, paying as you go.
Check for grants or insurance. Some local councils offer grants for structural repairs, especially for older homes. Also, review your home insurance policy—certain foundation issues may be covered if caused by sudden events.
Remember, cheap isn’t always good. Cutting corners on a foundation can lead to recurring damage, which ends up costing more in the long run. Choose a reputable firm with good reviews and ask for references from past clients.
Bottom line: foundation repair cost hinges on damage severity, method, access, and location. By understanding the price drivers, getting clear quotes, and tackling easy fixes yourself, you can control the budget while protecting your home’s stability.
