- Spray Foam Removal
Spray Foam Removal
Specialist spray foam insulation removal across Hampshire, Dorset and Surrey. Closed-cell and open-cell foam stripped safely from rafters, sarking and roof timbers. Properly inspected, properly reinstated and properly documented for your surveyor or lender.
Why Spray Foam Has Become a Property Problem
In the early 2010s, spray polyurethane foam insulation was sold to thousands of UK homeowners as a quick, effective way to insulate the underside of a roof. The reality, ten to fifteen years on, has turned out to be very different. Most major mortgage lenders, including Halifax, Nationwide, Santander, Barclays and many others, now refuse to lend on properties with spray foam in the loft. The Royal Institution of Chartered Surveyors (RICS) has issued formal guidance flagging it as a serious concern. Equity release providers won’t touch it. Buyers can’t get mortgages on it. Property sales fall through because of it.
The reasons are several, all of them legitimate. Spray foam bonded directly to roof timbers makes proper inspection of the structure impossible, which surveyors and lenders need before they’ll value or lend on a property. It traps moisture against the timbers, which can lead to rot and condensation problems hidden behind the foam itself. It often voids the manufacturer’s warranty on the tiles and felt above. And in many cases it was applied incorrectly in the first place, by installers chasing volume rather than doing the work to standard.
If you’ve got spray foam in your loft and you’re now trying to sell, remortgage, release equity, get repairs done or just get the roof properly inspected, the foam almost certainly has to come out. We’ve been removing it from properties across the South of England, leaving the roof structure clean, properly inspected, fully reinstated where damage has occurred, and with the documentation surveyors and lenders need to sign off.
Common Reasons Spray Foam Needs to Be Removed
Spray Foam Removal: Closed-Cell
Closed-cell foam is the harder, denser, more rigid type. It bonds aggressively to whatever it was sprayed onto and is genuinely difficult to remove without damaging the substrate beneath. We strip closed-cell foam back from rafters, sarking boards and roof timbers using mechanical hand tools and patient sectional working, removing the foam fully without taking the timber underneath with it. The result is a clean roof structure ready for inspection and reinstatement.
Spray Foam Removal: Open-Cell
Open-cell foam is softer, less dense and easier to remove than closed-cell, though it brings its own challenges. It tends to break up into large amounts of dust and small fragments that fill the loft space and need careful containment and clearance. We strip open-cell foam systematically, bag and remove all debris, and clear the loft thoroughly before any further work begins.
Loft & Roof Void Inspection
Once the foam is out, we inspect the entire roof structure properly. Every rafter, every batten, every section of felt, every length of timber that the foam was hiding. We document the condition with photographs and a written report, identifying any rot, splits, water damage or compromised structural elements that need attention. This documentation is exactly what a surveyor or lender will want to see, and we provide it as standard.
Damaged Tile, Batten & Felt Replacement
Spray foam often sits in direct contact with the underside of the felt or sarking, which traps moisture and can cause both materials to deteriorate. After removal, sections of felt that have rotted, battens that have softened or tiles that have cracked from foam pressure all need replacing. We carry out tile, batten and felt replacement as part of the same job, restoring the roof to a fully inspectable, fully serviceable state.
Roof Timber Assessment & Repair
Where rafters or other roof timbers have suffered rot or moisture damage from being smothered by foam, they need professional assessment and repair. We treat affected timber where the damage is superficial, and replace structural members where the rot has gone too far. Severe cases may require a structural engineer's involvement, which we'll flag honestly during the inspection rather than pressing ahead with cosmetic work over a serious problem.
Post-Removal Loft Reinstatement
Removing the foam without replacing its function leaves you with no insulation. We reinstate the loft properly, fitting modern mineral wool or similar between and over the joists at current Building Regulations levels (270mm minimum), ensuring proper eaves-to-ridge ventilation, and providing the right vapour control. The result is a loft that performs better than it did with the foam, while remaining fully accessible, inspectable and lender-friendly.
Our Services
Stuck With Spray Foam?
Mortgage held up. Sale frozen. Surveyor flagged it. Whatever the trigger, removal is the route through. Book a free survey and we’ll get you a clear written quote and a realistic timeline.
Why Spray Foam Has to Go
Almost every spray foam removal job we carry out comes from one of the following situations. If any of these sound familiar, you’re not alone, and you’re not stuck. The fix is straightforward, and we do it every week.
✓ Mortgage Refusal Due to Spray Foam
Most major lenders now decline mortgages on properties with spray foam in the roof. Removal is usually the only route to getting an offer back on the table.
✓ Remortgage & Equity Release Issues
Existing homeowners trying to remortgage, release equity, or move products are increasingly finding lenders flag spray foam as a deal-breaker. Removal restores lender confidence.
✓ Property Sale Falling Through
Buyers' surveyors and conveyancers routinely raise spray foam as a material concern. We've worked on plenty of houses where the sale was paused while removal was carried out, then completed straight after.
✓ Surveyor or Lender Requirements
RICS guidance treats spray foam as a flag during inspection. Surveyors and lenders frequently require it removed before they'll sign off on a valuation, and we provide the photographic and written documentation they need.
✓ Roof Inspection Access Blocked
Spray foam stuck to rafters and sarking makes meaningful roof structure inspection impossible. Removal opens up the structure so surveyors, builders and roofers can actually see what's there.
✓ Incorrect or Over-Application
A lot of foam was applied poorly in the first place: too thick, in the wrong places, blocking ventilation, or sprayed onto timber that was already damp. Our removal includes a full assessment of what was done and what damage it caused.
✓ Trapped Moisture, Mould & Timber Rot
Foam pressed against the underside of felt or directly onto rafters traps moisture rather than letting the roof breathe. Over years this can lead to widespread mould, condensation and timber rot, all hidden behind the foam itself.
✓ Structural Damage from Foam Expansion
Closed-cell foam expands aggressively as it cures. In some installations it has been documented to push tiles out of position, distort battens and put unintended pressure on timber and roof components.
✓ Void Roof Tile & Material Warranties
Tile and felt manufacturers commonly state that fitting spray foam to the underside of their products voids the original product warranty. Removal doesn't reinstate the original warranty, but it does stop the problem getting worse and allows fresh underlay or tile work to be properly warranted going forward.
✓ Renovations or Roof Repairs Required
Any meaningful roof work, including re-roofing, repairs, ventilation upgrades or loft conversions, typically requires the foam to come out first. Trying to repair a roof through or around foam is rarely viable.
✓ Property Layout or Loft Use Changes
Loft conversions, dormer additions, or simply turning unused loft space into storage all become much harder with spray foam in place. Removal opens up the space for whatever the long-term plan happens to be.
Get the Foam Out and the Sale Through
Most homeowners we speak to are already under pressure when they call us. A buyer waiting. A lender holding things up. A surveyor’s report sitting on the kitchen table. The good news is that spray foam removal is a known process with a predictable outcome. We get the foam out, document the structure properly, reinstate where needed, and give you the paperwork your surveyor and lender want to see.
Get in touch for a free, no-obligation survey. We’ll come out, take a proper look at how much foam you’ve got and what type, and give you a written quote covering removal, inspection, reinstatement and documentation.
Backed in Writing, Documented for Your Lender
Every spray foam removal job we carry out is backed three ways, plus we provide the documentation that surveyors and lenders need:
Written Workmanship Guarantee
You'll get a written workmanship guarantee specific to the removal and any reinstatement work we carry out. The exact terms depend on the scope and are confirmed before work starts.
Insurance-Backed via CORC
Confederation of Roofing Contractors membership means our workmanship guarantees are insurance-backed by the CORC scheme. If for any reason MGP Roofing couldn't honour a guarantee ourselves, the underwriter steps in.
£10 Million Public Liability
Every job is fully covered by our £10 million public liability insurance. Spray foam removal involves working in confined loft spaces with debris, dust and structural unknowns. Proper insurance is non-negotiable.
Inspection Documentation
On completion, we provide written documentation and photographs of the post-removal roof structure, including any damage found and any reinstatement work carried out. This is exactly what a buyer's surveyor or your lender will want to see, and it goes a long way towards getting a stalled transaction moving again.
F. A. Q
Frequently Asked Questions
Common questions homeowners ask us about spray foam removal. If yours isn’t here, give us a ring on 07304 092761 and we’ll talk it through honestly.
Three main reasons. First, the foam blocks meaningful inspection of the roof structure underneath, so the surveyor can't verify the condition of the timbers. Second, foam can trap moisture against rafters and felt, which has been linked to widespread rot and mould issues. Third, in many installations the foam was applied incorrectly, with no proper ventilation strategy and direct contact with timber that was already damp. Lenders look at all three and decide the risk is more than they want to take on.
Both closed-cell and open-cell spray foam cause issues for lenders and surveyors, though for slightly different reasons. Closed-cell is denser and bonds more aggressively, often causing more structural and inspection issues. Open-cell is softer and less rigid, but it tends to absorb moisture rather than repel it, which brings its own rot and mould risks. Either way, removal is generally what's needed to satisfy a lender.
It depends on how much foam there is, what type, how it was applied and how accessible the loft is. A standard loft with moderate foam coverage typically takes a few days. Heavily foamed lofts, properties with closed-cell foam in difficult-to-reach areas, or jobs requiring substantial timber repair can take longer. We give you a realistic timeline at the survey stage.
After removal you're left with a clean, inspectable roof structure: rafters, sarking or battens, the underside of the felt, and whatever timber is in the void. Most installations leave some damage behind that needs repair, especially to felt and battens. We assess and reinstate as part of the same job, then add insulation back into the loft using proper modern mineral wool or similar at current Building Regulations levels.
No, generally not. Spray foam removal is contained to the loft space and we keep dust and debris out of the rest of the property using sheeting and proper protection. The loft itself will be inaccessible during the work, but the rest of the house stays liveable.
Yes, this is part of every removal job we carry out. We document the post-removal roof structure with photographs, write a clear summary of what was removed and what was found, and detail any reinstatement work completed. Surveyors and lenders accept this as evidence that the foam has been properly dealt with and the roof structure has been inspected.
Sometimes, but not usually. Most spray foam was sold and installed years ago, often by companies that have since stopped trading or by sole traders no longer reachable. Some homeowners do successfully claim against the original installer or finance provider, especially where the sale was misrepresented, but it's not the typical outcome. Realistic planning starts from "the foam is on me to remove".
Yes. £10 million public liability insurance covers every spray foam removal job. A copy of the certificate can be provided with your quote.
What We Use :
