Open Cell Spray Foam Removal in London done cleanly
Open Cell Spray Foam Removal in London clears soft, low-density foam from lofts, rafters and roof decks so your timber can breathe again. We handle open cell insulation removal for homeowners, landlords and buyers stuck with a mortgage lender refusal, working across Greater London with same day and 24/7 call-outs. Most lofts are stripped, vacuumed and air-scrubbed inside one working day.
What this covers
Open Cell Spray Foam Removal in London explained
Open Cell Spray Foam Removal in London is the controlled stripping of soft, low-density polyurethane foam from roof timbers, rafters and loft decks, followed by cleaning, drying and disposal. Open cell foam is sprayed as two liquids, isocyanate and polyol resin, that expand and cure into an open, spongy structure. Unlike closed cell spray foam it lets some vapour through, but it still traps moisture against timber when it is sprayed too thick, too deep or straight onto a cold roof deck. We cut it back with a spray foam removal saw and oscillating multi-tool, then vacuum and scrub the residue so the timber is left clean and inspectable. London homeowners call us for three reasons. A surveyor flags spray foam insulation failing building regulations, a lender refuses a mortgage on a foam-filled loft, or the roof timbers have started to rot from trapped moisture. Terraced and Victorian housing stock across Greater London makes this worse, because rafters are often thin, old and hard to inspect once foam is sprayed over them. If you have been searching for open cell spray foam removal near me London and want a straight answer on whether the foam has to come out, we will tell you after a loft inspection, not a sales pitch.
! Common warning signs
Mortgage lender refuses to lend on a foam-filled loft
Your sale stalls, your buyer walks, and you lose months. Most high street lenders treat spray foam bonded to rafters as a structural risk until it is removed and the timbers are inspected.
Roof timber rot from trapped moisture
Damp sits against the rafters, rot spreads along the roof line, and eventually the structure needs carpentry work rather than just foam removal. By the time you see ceiling stains, 2 to 3 rafters are usually affected.
Attic condensation and musty smells
Warm moist air from the house hits the foam, condenses, and drips back onto stored items and ceiling plaster. The smell drifts into bedrooms and the loft becomes unusable for storage.
Scope of work
What our open cell foam removal includes
Every removal is quoted as a complete job, not a day rate. Here is what is covered, from the first survey to the final report. If your loft needs extra work such as timber treatment or new insulation, we price that separately and clearly before we start.
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01
Full loft survey
We measure foam depth, check rafter condition, take moisture readings and photograph everything. You get a fixed quote the same day. If only part of the foam needs removing, we will tell you rather than quoting for the whole roof.
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02
Controlled foam extraction
Foam is cut back with a spray foam removal saw, oscillating multi-tool and chisel and scraper set, rafter by rafter. A reciprocating saw handles thicker sections. Most domestic lofts take 4 to 8 hours to strip.
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03
Dust control and clean-up
The loft opening is sealed, floor protection laid, and an industrial vacuum plus air scrubber run throughout. Loose residue is lifted and surfaces wiped down. We take the waste away and dispose of it through licensed routes.
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04
Removal report for lenders
You receive before and after photographs, moisture readings and a written summary of the removal and timber condition. This is the document solicitors and surveyors ask for when a sale has been held up by a foam-related mortgage refusal.
Why homeowners strip open cell foam
Open cell foam is not always a disaster, but when it sits against old London roof timbers it causes problems that get worse every winter. Here is what removal actually gets you.
Get a quoteTools and methods we use
Spray foam removal saw
Cuts through open cell foam in clean slices without gouging the rafters underneath. It is the first tool on every job and sets the pace for the rest of the removal.
Oscillating multi-tool
Reaches into corners, between rafters and around cables where a saw will not fit. Ideal for trimming foam back to the timber face on older London roof frames.
Industrial vacuum and air scrubber
Lifts loose foam residue and clears airborne particles during and after stripping. Together they keep dust out of the living space in open-plan flats and terraces.
PPE respirator and coveralls
Every technician wears a respirator, coveralls and eye protection. Foam dust and isocyanate residue are not things you want to breathe, and we treat every loft as contaminated until it is cleaned.
Local execution
London roof spaces are tight, old and often hard to reach, which changes how the job is done. Victorian and Edwardian terraces across Westminster, Camden and Islington typically have thin rafters, no sarking membrane and limited loft hatches, so we plan extraction routes before anything is cut. Damp London winters make trapped moisture worse, and open cell foam sprayed on the cold side of a roof deck holds that damp against the timber for months. Building Regulations Part L and lender survey requirements are stricter here than in many parts of the country, so documentation matters as much as the removal itself. We work around occupied homes, shared stairwells and period features, and we schedule around the weather, because drying times stretch in January and shorten in July. If you need open cell spray foam removal cost London Greater London guidance before committing, we will give you a fixed figure after the survey rather than a vague day rate.
How open cell foam removal runs in London
- • Westminster
- • Hackney
- • Bromley
- • Canary Wharf
Recent work
Same day and 24/7 cover across London
When deadlines bite, we answer
Our phone line is open 24/7 on 02080885345, and a real person answers. For urgent mortgage deadlines and water ingress through a foam-filled roof, we can often survey the same day across Greater London and book the removal within 24 to 48 hours. A standard crew is two technicians, with a three-person team for larger lofts and commercial roof decks. Every van carries a spray foam removal saw, oscillating multi-tools, an industrial vacuum, an air scrubber and full PPE, so we are not waiting on equipment to arrive. We keep same day open cell spray foam removal London slots free each week for pre-completion cases, and we will tell you honestly on the call whether your job qualifies for one.
How the removal works, step by step
Loft survey
We inspect the roof space, measure foam depth, check rafter condition and photograph everything. You get a fixed quote the same day, usually within 2 hours of the visit. If the foam is sound and only a partial strip is needed, we say so.
Protection and setup
Dust sheets, floor protection and sealed extraction routes go in first. Our technicians wear PPE respirators and full coveralls. We isolate the loft from the rest of the house so no foam dust reaches living areas, which matters in open-plan London flats.
Foam extraction
We cut the foam back with a spray foam removal saw, oscillating multi-tool and chisel and scraper set, working rafter by rafter. A reciprocating saw handles thicker sections. Most lofts take 4 to 8 hours to strip, depending on foam depth and roof size.
What open cell foam removal costs
Open cell spray foam removal in London is priced per job, not per hour, because the variables are loft size, foam depth and access. Typical 2026 pricing for a standard domestic loft runs from 1,200 to 3,500 pounds, with larger roofs or heavy foam from 4,000 pounds upwards. We survey first and quote a fixed figure, so you know the total before we start. If only part of the foam needs to come out, the price drops accordingly, and we will say so.
Loft size and roof type
A small terrace loft of 15 to 20 square metres is at the lower end. Larger semis, detached houses and commercial roof decks take longer to strip and cost more. Access through a small hatch also adds setup time.
Foam depth and type
Thin open cell foam comes away quickly. Deep foam, mixed open and closed cell systems, or foam bonded to sarking boards takes longer and needs more cutting. Closed cell sections are the slowest part of any removal.
Timber condition
Dry, sound rafters need no extra work. Where rot or damp is found, timber treatment or carpentry adds cost. We flag this in the survey so it is priced upfront rather than discovered mid-job.
Frequently asked questions
How much does open cell spray foam removal cost in London?
Typical 2026 pricing in London runs from 1,200 to 3,500 pounds for a standard domestic loft, and 4,000 pounds upwards for larger roofs or heavy foam. The main drivers are loft size, foam depth, access and whether timber treatment is needed. We quote a fixed price after the survey, so there are no surprise extras on the day.
Can you remove open cell spray foam in London?
Yes. We remove open cell, closed cell and mixed foam systems across Greater London, including BASF, Icynene and Lapolla products. Open cell foam is softer than closed cell, so it usually comes away faster, but it still needs careful cutting to protect the rafters. Most lofts are cleared in a single working day.
Is open cell spray foam removal messy in Greater London?
It can be, which is why we control it. We seal the loft opening, lay floor protection, and use an industrial vacuum plus air scrubber throughout the job. Fine foam dust is extracted at source rather than drifting through the house. Most customers say the finished loft is cleaner than before we arrived.
How long does open cell spray foam removal take in London?
A typical domestic loft takes 4 to 8 hours of stripping, so most jobs are done in one day. Larger roofs, deep foam or restricted access can run to 2 days. Drying afterwards takes 3 to 7 days depending on weather. We book most London removals within 24 to 48 hours of the survey.
Related services
Spray Foam Removal near me
If you are searching for spray foam removal near me, we cover every London borough from Westminster to Havering. This is the umbrella service that includes open cell, closed cell and mixed foam stripping, with a survey first and a fixed quote before any work starts.
Same day Spray Foam Removal
Same day spray foam removal suits urgent mortgage deadlines and pre-completion surveys. Call before midday and we can often survey the same afternoon across Greater London, with removal booked inside 24 to 48 hours. Open cell foam is usually the quickest type to strip.
Book Open Cell Spray Foam Removal in London today
We survey, quote and strip open cell foam across Greater London, with same day and 24/7 cover for urgent cases. Call 02080885345 and we will tell you honestly whether the foam has to come out.