Do you actually need your spray foam removed?
Often not. Of more than 500 properties inspected by the Property Care Association and the HomeOwners Alliance, 35% had a defect caused by the foam, which means around two thirds did not. Before you spend four thousand pounds, find out which kind of loft you have. Our inspection is free and the verdict can be that it stays.
The honest answer
You need removal if the foam is causing damage, if it was badly installed, or if your specific lender will not lend on a foamed roof under any circumstances. You very possibly do not need it if the foam is sound, was correctly installed with a ventilation gap, and your lender will accept a specialist inspection report instead. The only way to know is to get someone in the loft who has no reason to prefer one answer over the other.
Two different problems, constantly confused
Almost everything written about spray foam collapses two separate issues into one scary sentence. Pull them apart and the decision gets much easier.
Problem one is a survey problem. The foam covers the rafters, so a valuer cannot inspect them. They are not saying the roof is bad. They are saying they cannot tell, and a lender will not advance money against a roof nobody can assess. This is by far the more common of the two.
Problem two is a building problem. Foam, particularly closed cell foam applied directly to the underside of the tiles with no ventilation gap, can trap moisture against the timbers. Given years, that causes decay. It is real, and it is the minority case.
If you have problem one only, removal is one solution and evidence is another. If you have problem two, the foam is coming out regardless of what any lender thinks, because the roof needs it.
Work it through
Which situation are you in?
None of this replaces someone getting in the loft, but it will tell you what to expect and what questions to ask.
| What you can see or know | What it usually means | Likely answer |
|---|---|---|
| Foam is soft, crumbles under a thumb, and you can see daylight gaps at the eaves | Open cell, with ventilation still working. The commonest and least troublesome installation. | Often can stay, with an inspection report |
| Foam is hard and rigid, sprayed straight onto the underside of the tiles with no gap | Closed cell with no ventilation path. The configuration most likely to trap moisture. | Usually removal |
| Timbers are damp to the touch, discoloured, or soft when probed | Moisture is being trapped. This is a building problem and a lending problem. | Removal, plus timber work |
| Musty smell in the loft, condensation on the underside of the foam in winter | Ventilation has been lost. Not always terminal, but it needs assessing properly. | Inspection first |
| Everything looks sound but your lender has declined | A survey problem, not a building problem. | Check the lender first. Some accept a report |
| You have the original installation paperwork, BBA or KIWA certificate and a condition report | You are in the best position anyone in this situation can be in. | Try the report route first |
This is a guide, not a diagnosis. Thumb pressure through a loft hatch is not a survey.
The document that can save you the job
The Property Care Association publishes a Sprayed Foam Insulation Inspection Protocol, developed with the Residential Property Surveyors Association and published in March 2023. It exists precisely so a surveyor can assess an individual roof on its merits rather than reject a property because foam is present.
RICS, in its own consumer guide, lists what it would want to see: the product's BBA or KIWA certificate, the installer warranty, a condensation risk assessment, thermal calculations, photographs from before, during and after installation, and moisture readings. If you have some of that from the original install, dig it out before you do anything else.
RICS also says the assessment should be commercially separate from the installer and the manufacturer. It is worth noticing that it should arguably be separate from the removal company too, which is why we tell people to commission the post-removal report independently of us.
Why you are being told you need it
Some of the pressure you are under is not coming from your roof.
The Property Care Association publicly named a claim doing the rounds in August 2026: homeowners being told their property is on a national database of homes that will lose value unless the foam comes out. There is no such database. It is fabricated, and the people saying it are selling removal.
Trading Standards has been busier still. A 2024 county court case in Herefordshire and Worcestershire produced ten-year injunctions against seven individuals over a cold-call loft insulation operation, with 25 victim statements and an average victim age of 77. Trading Standards Scotland has warned about firms falsely claiming a partnership with Trading Standards itself, and reported Scots losing £500,000 to insulation scams in a single year. Several councils publish their own warnings.
There is a particular sting in the tail: some of the firms now offering removal are the same operations that sold the installation, returning to their own former customers.
None of which means removal is never needed. It means the question deserves an answer from someone who does not lose money by giving you the honest one.
What we do when the answer is no
Roughly speaking, this is what happens when we inspect a loft and the foam is sound.
- You get the written report and the photographs, the same pack you would get either way.
- The report describes the foam type, the coverage, the ventilation arrangement, the condition of the accessible timbers and any moisture readings taken.
- You can hand that to your surveyor, your broker or your buyer. In a lending case where the objection was that the roof could not be inspected, that is frequently the whole answer.
- You pay us nothing.
We would obviously rather sell you a removal. We would rather more than that be the firm people send their neighbours to, and in a market where the dominant experience is being frightened into a purchase, telling people the truth turns out to be a reasonable business model.
No obligation, no deposit
Have someone look at it properly
An hour in the loft and you will know exactly where you stand, in writing, with photographs. If the foam is sound, that is what the report says and there is nothing to pay.
Book the free inspection
Two steps. No deposit, and nothing to pay if the foam is sound.
Our rules, published
What we will never do
Trading Standards has prosecuted spray foam operations in this market, including a 2024 case with 25 victims whose average age was 77. Pretending that is not happening helps nobody. These are our rules and every one of them is checkable.
- We never cold call. If someone rang you unprompted about your loft, it was not us.Trading Standards has prosecuted cold-call spray foam operations, including a 2024 case with 25 victims whose average age was 77.
- We never take a deposit. You pay when the work is done and inspected.Advice Direct Scotland has warned about deposit-taking removal firms; one reported case took £550 against a £5,500 quote.
- We will tell you if the foam can stay.The Insulation Manufacturers Association stated in February 2026 that correctly installed foam is safe and rarely needs removing.
- We never claim your home is on a national database or worthless.The Property Care Association named that claim as fabricated in August 2026. No such database exists.
- The price is written down before anything starts.It changes only if you ask for extra work, in writing.
- If the membrane is damaged, the report says so.Foam frequently bonds to and destroys the old felt. Covering that up is the failure the PCA's new removal standard is written to stop.
Common questions
Is spray foam insulation illegal in the UK?
No. It is a legal, certificated building product and it is still being installed. The problems are about how it was sold, how some of it was fitted, and what it does to a mortgage valuation. Those are serious problems but they are not the same as the product being banned.
Can I sell my house with spray foam still in it?
Yes, but your buyer's options narrow. A cash buyer or an auction sale is unaffected. A buyer needing a mortgage is at the mercy of their lender's position, and around a quarter of major lenders would not lend at all according to the BBC's 2024 survey. Many buyers will ask for a discount considerably larger than the cost of removal, which is the maths that pushes most sellers into doing the work.
My surveyor said it has to come out. Is that final?
Not necessarily, and it is worth asking a specific question: is the concern the condition of the timbers, or the fact that they cannot be inspected? Those need different answers. If it is inspectability, a specialist report written to the PCA protocol may satisfy the lender. If the surveyor has seen actual decay, it is coming out.
Does spray foam always cause condensation and rot?
No. It can, and closed cell foam applied with no ventilation gap is the configuration where it most often does. But the Property Care Association's own inspection programme found defects in 35% of more than 500 properties, which means the majority were fine. Treat anyone who tells you it always causes rot the same way you would treat anyone who tells you it never does.
How do I check whether a removal company is legitimate?
Five checks, all free and all quick. Look the company up on Companies House and see how long it has existed. Ask for the company number and check it matches the name on the quote. Look for reviews on a platform that verifies them rather than a screenshot on the website. Ask whether they take a deposit, and walk away if they do. And ask whether they hold Property Care Association membership, which as of September 2026 is the first recognised credential for removal work specifically.
Should I use the company that is offering a free survey over the phone?
A free survey is fine, we offer one. What matters is what happens at the end of it. If the survey can only ever conclude that you need removal, it is not a survey, it is a sales call. Ask before they come out: under what circumstances would you tell me to leave it alone? The answer tells you what you are dealing with.
Read next
What removal costs
If the answer does turn out to be yes, here is every 2026 figure with the extras itemised.
Read thisWhere the lenders stand
Some lenders refuse regardless of condition. Find out whether yours is one of them first.
Read thisThe evidence pack
What a surveyor asks for, whether the foam stays or goes.
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