Foundation Repair Cost: Real Numbers, Real Advice

Spotting a crack in your foundation is unsettling, but you don’t need to panic about the price tag. Most homeowners spend between £1,200 and £5,000 on repairs, but the exact figure depends on a handful of clear factors. In this guide we break down those factors, show you typical price ranges, and share tips to avoid over‑paying.

What Drives the Cost?

1. Type of damage – A small vertical crack can be fixed with epoxy filling for as little as £300, while a large horizontal crack often needs steel piers or underpinning, pushing the price above £4,000.

2. Depth of the problem – If water is pooling under the slab, you’ll need drainage and waterproofing in addition to the structural fix, which adds £500‑£1,500.

3. Soil conditions – Expansive clay or loose sand may require soil stabilization or a new foundation footing, both of which bump the bill.

4. Access and location – Tight crawl spaces or hard‑to‑reach sites increase labour time, and rural properties sometimes face higher travel costs.

Typical Price Ranges

Here’s a quick snapshot of what you’ll likely see on a quote:

• Epoxy crack injection: £250‑£600 per crack.
• Carbon fibre reinforcement: £800‑£2,200 per wall.
• Steel piers (per pier): £900‑£1,500; most homes need 3‑6 piers.
• Full underpinning: £4,000‑£8,000 depending on depth.
• Drainage and waterproofing: £500‑£1,500.

These numbers are averages for the UK; actual quotes will vary by region and contractor.

When you get an estimate, ask for a detailed breakdown. A transparent quote shows material costs, labour hours, and any permits needed. If a contractor lumps everything into a single “all‑inclusive” figure, request clarification on each line item.

DIY vs. professional – Small crack repairs can be tackled yourself with a DIY epoxy kit. However, anything involving structural support, soil movement, or water management should be left to certified foundation specialists. Cutting corners on a major repair can cost you double in future damage.

To keep costs down, consider these practical steps:

• Get three quotes and compare them side by side.
• Ask if the contractor offers a warranty; a longer warranty often means better workmanship.
• Check whether local council grants or home improvement loans are available for structural repairs.
• Maintain good drainage around your home – clearing gutters and grading the soil away from the foundation can prevent bigger problems later.

Remember, the cheapest quote isn’t always the best. Look for a balance of price, experience, and clear communication. A reputable firm will walk you through the process, explain why each step is needed, and make sure you’re comfortable with the timeline.

In short, foundation repair isn’t a mystery. By understanding the key cost drivers, comparing detailed estimates, and doing a little preventive maintenance, you can protect your home without breaking the bank.