PRICE GUIDE · TRADES & CONSTRUCTION · 2026–2027
Underpinning cost in the UK
£5,000–£21,000 per job. Typically £13,500.
Underpinning a UK house typically costs £5,000–£21,000, with about £13,500 average for traditional mass concrete. How many metres of wall need support, the method — mass concrete, mini-piles or resin — the ground and access set the price, and home insurance often pays for subsidence repairs.
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HOW MUCH IT COSTS
How much does underpinning cost in the UK?
| Low end | £5,000 | a single corner or bay on firm ground |
|---|---|---|
| Typical | £13,500 | what most people pay |
| High end | £21,000 | long runs of wall on deep clay |
Locufy guide prices for 2026–2027. Updated 2026. A national range, not a quote — enter your town above for real prices from the builders and trades near you.
What moves the price
- Length of wall — underpinning is priced largely by the metre, so one corner costs far less than a whole house
- Method — mass concrete is traditional, while mini-piling and resin injection suit different ground
- Depth — clay soils and nearby trees can mean digging much deeper to reach stable ground
- Access — underpinning inside a house or through a narrow side passage is slower
- Cause of movement — leaking drains or trees are dealt with first, or the movement returns after underpinning
- Insurance — a subsidence claim can cover most of the underpinning cost after the excess
Building and repair prices in the UK are up 6% over five years (ONS Consumer Price Inflation, Services for maintenance and repair, to 2026 August). Five years ago a typical underpinning would have cost about £11360 — an estimate from today's guide price and that index, not a recorded price. Source: ONS MM23 D7DO →
WHAT YOU GET
What an underpinning booking includes
Takes: Two to six weeks on site, after investigation and monitoring. Not included: Drain repairs, tree removal, redecorating inside and your insurance excess are usually separate from the underpinning price — see the related guides below.
WHAT PEOPLE BOOK
Common underpinning jobs
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Underpinning near you, with prices shown
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How to pay less
- Make a subsidence claim on your home insurance before paying for underpinning yourself
- Fix leaking drains and deal with problem trees first, as this sometimes stops movement without underpinning
- Ask whether resin injection or partial underpinning will do instead of the whole house
Before you book
- Underpinning needs building regulations approval and inspection at each stage
- Serve party wall notices if the underpinning is near or under a shared wall
- Tell your home insurer as soon as you suspect subsidence, before any work starts
- Ask the engineer for monitoring to prove the movement is active before agreeing to underpinning
Underpinning cost: questions people ask
£5,000–£21,000 per job, about £13,500 typical for traditional mass concrete. One corner or bay costs least; long runs of wall on deep clay cost the most.
Usually two to six weeks on site, after investigation and any monitoring period.
Often, if subsidence is covered by your policy. You pay the subsidence excess, and the insurer manages the investigation and repairs.
No. Many cracks come from drying plaster, settlement or thermal movement. An engineer can tell you whether the movement is structural.
Drain repairs, tree work, internal redecoration and your insurance excess are generally separate.
They are Locufy guide prices for the UK, taken from published UK underpinning costs — a national range, not a quote. Length of wall and ground conditions decide your price.