Spray Foam Removal Cost
What removal costs in the UK, what moves the price, and what a fair quote should include
By Jake Harber, spray foam removal adviser · Last updated 30 October 2026
The short answer
Professional spray foam removal from a typical UK loft costs £3,000 to £8,500, which works out at around £50 to £80 per square metre. Smaller terraced homes sit at the lower end and large detached homes at the upper end. Most three-bedroom homes take 2 to 5 days. Timber repairs, if the rafters underneath need them, are a separate cost, and nobody can price them until the foam is off and the wood can be seen.
If a survey has flagged spray foam in your loft, or a mortgage offer has been withdrawn, the range above is the number you came for. The rest of this page explains what moves a quote within it, so you can tell a fair quote from a bad one.
We don't remove spray foam ourselves. We arrange the survey and introduce you to removal specialists we have checked. We are paid by the removal companies and surveyors we introduce you to. That never changes the advice on this site.
What Affects Your Quote?
1. Roof area
Removal is priced per square metre, so the area of foam to be taken off is the biggest single factor. That is why a small terrace and a large detached house sit at opposite ends of the range.
2. Foam type
Closed-cell foam is denser and bonds harder to the timber than open-cell foam, so it takes longer to work off by hand. Expect closed-cell quotes towards the upper end of the per-square-metre range.
3. Access and roof complexity
Low headroom, a small hatch, dormers and valleys all slow the work down. Most standard lofts are straightforward; awkward ones are assessed during the survey.
4. The timbers underneath
This is the one genuine unknown. If the rafters have suffered under the foam, repairs are extra, and a fair quote says so in writing rather than guessing a figure before anyone has seen the wood.
What should already be in the price?
Compare quotes on what they include, not just the headline figure. A complete quote should cover:
- ✓Manual removal of the foam by hand tools
- ✓Floor and carpet protection on the way to the loft
- ✓Waste removal and disposal
- ✓Cleaning and vacuuming once the foam is off
- ✓A timber inspection and photo record
- ✓The removal certificate your lender will ask for
Warning signs in a quote
- •A price well below the range, which often means a quicker, rougher method that can damage timbers
- •No removal certificate, or one the company issues to itself with no independent sign-off
- •No proof of insurance
- •A price well above £8,500 for an ordinary home with no specific written reason, such as an unusually large roof or timber damage already found
Want the full cost breakdown?
Our sister site, Spray Foam Removal Advice, keeps the detailed version of these figures and explains how they are worked out: the full spray foam removal cost guide.
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Questions we get asked most
How much does spray foam removal cost in the UK?
Professional removal from a typical UK loft costs £3,000 to £8,500, or around £50 to £80 per square metre. Smaller terraced homes sit at the lower end and large detached homes at the upper end. Timber repairs, if needed, are extra.
Does closed-cell foam cost more to remove than open-cell?
Yes. Closed-cell foam is denser and sticks harder to the roof timbers, so it takes longer to remove by hand. Expect closed-cell quotes towards the upper end of the £50 to £80 per square metre range.
How long does spray foam removal take?
Most three-bedroom homes take 2 to 5 days, depending on the roof, the foam type and access. Timber repairs, if any are needed once the foam is off, add time.
Is removal worth it?
It depends what you need the house to do. Lender policies vary: in October 2026 the government named eight major lenders, including Nationwide, Lloyds, Barclays and HSBC, as open to lending on spray foam homes, subject to their own requirements, and others still decline. Removal does not guarantee a lender will lend. If you are not selling or remortgaging, removal may not be urgent. Get a specialist survey first.
Why do quotes vary so much for the same house?
Partly because roof areas really do differ, and partly because some quotes leave things out that come back later: waste disposal, cleaning, floor protection or the removal certificate. Compare what each quote includes, not just the total.