How long is underpinning guarantee for?

We’ve been told the house was underpinned years ago, but I’ve no idea what sort of guarantee normally comes with that or how long it should be for?

Asked by Greg on 14th Mar 2026
Expert Trade Answers
"If it was done properly then it should be guaranteed indefinitely, I would request the structural engineers drawings to clarify."
Answered on 14th Mar 2026 - Member since Jun 2022 - report
"Underpinning is great for strengthening foundation"
Answered on 17th Apr 2026 - Member since Apr 2026 - report
"Underpinning should last around 50+ years give or take.

Hope that is of some use to you."
Answered on 14th Mar 2026 - Member since Oct 2025 - report
"contact your local council building control they will have a record of when the works were carried out the repairs are permanent hope this helps regards"
Answered on 14th Mar 2026 - Member since Jul 2020 - report
"Local Authority Building Control should have all relevant documentation regarding historical underpinning to your home.
They would be my first port of call.
Hope this helps.
Don't let them fob you off."
Answered on 14th Mar 2026 - Member since Jan 2022 - report
"A written guarantee is not always provided by the contractor. If there is a guarantee, it should state the guarantee period.

Generally there is an engineer or loss adjuster who have prepared the design for whoever does the underpinning. The law is complex. However in the event of a failure within 7 years, the designer/underpinning contractor are likely to have liability.

J Brian Pyle"
Answered on 13th Apr 2026 - Member since Jul 2025 - report
"This all depends on the firm.
I give ten years others less or more."
Answered on 22nd Apr 2026 - Member since Jan 2026 - report
"It’s supposed to last the lifetime of the building, 50+ years if installed correctly"
Answered on 16th Mar 2026 - Member since Feb 2026 - report
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