Roof spray foam removal in London is the job we do every week: cutting out failed open cell and closed cell foam from lofts and rafters, then restoring the ventilation your roof needs. We work across Greater London for homeowners, buyers and landlords who have been told the foam has to go before a sale, a remortgage or a survey can proceed. Same-day quotes, tidy work, waste taken away.
Roof spray foam removal in London means physically cutting, scraping and vacuuming out the polyurethane foam sprayed onto the underside of your roof covering or between rafters, then reinstating airflow so the roof can dry. Foam that was applied to trap heat often blocks the gap at the eaves, so we open that path back up, treat any timber that has started to rot, and leave the loft ready for a breathable insulation system such as mineral wool or a modern board. Nothing is left bagged up in your loft.
Most London customers come to us after a surveyor flags spray foam during a mortgage valuation, or after they notice condensation dripping onto stored boxes. Roof insulation removal London wide is rarely cosmetic: closed cell foam traps moisture against felt and battens, and hidden damp and rot follow within a few seasons. If you have been searching for roof insulation removal near me London and been quoted silly money, we will tell you honestly what your roof needs and what it does not.
Every removal job is quoted as a complete package so you know exactly what you are paying for. The items below are standard on all our London roof spray foam removal work. Anything outside this list, such as full roof replacement or new felt, is quoted separately after the survey.
A site visit with thermal imaging camera and moisture meter to map the foam, check the timbers and confirm the eaves ventilation gap. You get a fixed written price the same day.
Protective sheeting, a negative air machine and an air scrubber with HEPA filters keep foam dust out of your living space while we cut and vacuum the foam out.
Every rafter and batten is checked for rot and fungal growth once the foam is off. We treat what can be saved and replace what cannot, with photos of each stage.
We clear the eaves gap and any blocked vents so the roof can dry. This is the step that stops condensation coming back and keeps the roof compliant with Building Regulations Part L.
All foam is bagged, removed from site the same day and disposed of through licensed routes. You receive a waste transfer note and a dated photo record for your lender or surveyor.
We visit, photograph the foam, check the eaves gap and take moisture readings on the timbers. You get a fixed written price the same day, usually within two hours of the visit. No charge for the survey, no pressure to book.
On the day, we sheet the loft floor, stairs and landing with protective sheeting, seal the hatch with a negative air machine and run an air scrubber with HEPA filters. That keeps foam dust out of your living space. Setup takes about 45 minutes.
We cut the bulk of the foam with a reciprocating saw and oscillating multi-tool, then finish the bonded residue with a dry ice blasting machine or sand blasting equipment where the substrate allows. Operators wear a respirator and protective clothing throughout. A typical three-bed loft takes one to two days.
With the foam gone we inspect every rafter and batten, treat any fungal growth, and replace timber that has lost its strength. We photograph each stage so you have a dated record for your lender or surveyor.
All foam goes into disposal bags and leaves site the same day. We vacuum the loft, reinstate the ventilation path, and walk you through what we found and what we fitted. You get the photo record and waste transfer note by email.
Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.
Used to cut the bulk of the foam away from rafters and battens without damaging the timber underneath. The multi-tool gets into the tight corners around purlins and eaves.
Dry ice pellets lift bonded foam and adhesive residue off older timbers without soaking them or abrading the surface. Our preferred finish where the roof structure is fragile.
For stubborn foam on brick, block and concrete roof decks, sand blasting media strips the residue back to a clean surface ready for a new insulation build.
Maps moisture and cold spots in the roof before and after removal, so we can prove the timber has dried and the ventilation is working again.
Run together with HEPA filters to capture foam dust at source and keep it out of your living space. The negative air machine holds the loft under slight pressure all day.
Standard kit for every operator. Spray foam dust and old isocyanate residue are not things you want to breathe, so the crew is fully covered from setup to clearance.
A three-bed Victorian terrace had closed cell foam sprayed across the rafters in 2014. The buyer's lender refused the mortgage and the sale stalled. Moisture readings showed 24% in two battens, and the eaves gap was completely blocked.
We removed the foam over two days, treated the damp battens, cleared the 25mm eaves gap and issued the photo record and waste transfer note. The lender reinstated the valuation and the sale completed three weeks later.
A landlord's tenants had reported condensation dripping onto stored boxes for two winters. The foam was open cell but applied thickly across the eaves, and one batten had started to soften. The loft smelled damp.
We removed the foam in a day and a half, replaced the rotten batten, and restored ventilation. Moisture readings dropped below 16% within three weeks and the tenants stopped reporting damp.
A 1930s semi in Bromley had thick closed cell foam that a surveyor flagged as a defect. The homeowner was remortgaging and needed it gone, but also wanted the loft to perform better than the old foam had.
We removed the foam over two days, treated the timbers, and fitted breathable insulation to current standards. The remortgage completed and the loft now meets the U-value the lender's surveyor expected.
Spray foam that was sold as a money-saver often becomes the reason a sale stalls or a loft stays damp. These are the problems we are called out to fix across London every week.
Ask a pro →We remove the foam, document the work with dated photos and moisture readings, and issue a method statement your lender or the buyer's surveyor can accept. Most sales we unblock complete within a month of the removal.
We cut the foam back, restore the 25mm ventilation path at the eaves, and check the timbers for moisture with a thermal imaging camera. Damp patches usually dry out within a few weeks of the roof breathing again.
Our survey includes moisture readings at multiple points, and we cut out and treat any soft timber during removal. Catching rot at the first sign costs far less than replacing a roof section later.
Removing the foam gives surveyors the clear view they need. We provide the photo record and waste transfer note that turns an unvaluable roof into a straightforward one, usually within two working days on site.
Most London lofts cost between 1,800 and 4,500 pounds in 2026, with a typical three-bed terrace landing around 2,400 to 3,200 pounds. Price depends on foam type, thickness, loft size and access. Closed cell foam bonded hard to felt sits at the top of the range; thin open cell foam on a simple roof sits at the bottom. The survey and written quote are free.
Yes. We remove open cell and closed cell spray foam from lofts, rafters and roof decks across every London borough, using saws, oscillating multi-tools and dry ice blasting for the bonded residue. If the foam is sound and your lender accepts it, we will tell you so rather than sell you a removal you do not need.
Sometimes. Buildings insurance occasionally covers removal where the foam caused water damage or rot, but most policies exclude it because spray foam was a deliberate installation. We provide a full photo record and written report you can submit with a claim. If the claim is refused, we can usually phase the work to spread the cost.
A standard three-bedroom loft takes one to two working days, including setup, removal, timber treatment and clearance. Larger lofts, thick closed cell foam or restricted access can run to three days. We give you a realistic timeframe at quote stage and keep to it, because most customers are living in the property while we work.
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Get a free quote 02080885342 →Call 02080885342 between 8am and 6pm Monday to Friday, or leave a message any time and we will call you back the next morning. Most surveys are booked within 48 hours and quotes go out the same day. Email works too if you have photos of the loft to send over.