Group A · Loft and roof insulation
Spray foam removal
Removing spray foam, inspecting the timbers and re-insulating with breathable materials.
Typical price
Spray foam removal
£2,500–£6,500
Spray foam removal and re-insulation
Book a suitability assessmentBefore grants · updated 11 October 2026 · a survey confirms the final figure.
- Best for
- Homes blocked from sale or remortgage
- Guarantee or standard
- Inspection report
- Time on site
- Usually a few days, depending on the roof size and how much foam there is.
- Typical price
- £2,500–£6,500
What it is
What is spray foam removal?
Removing spray foam, inspecting the timbers and re-insulating with breathable materials.
Best for: Homes blocked from sale or remortgage.
Spray foam, done safely
Assessment first. Always.
RICS has warned that some lenders and valuers refuse properties with spray foam, and that independent suitability checks are needed. So we never quote an installation until the roof has been assessed — and we'll tell you if mineral wool is the better answer.
- Assessment firstA paid Spray Foam Suitability Assessment — roof structure, ventilation, moisture and lender position — comes before any installation quote.
- Open-cell, certified systems onlyYour quote names the system, its BBA or KIWA certificate and the installer's training card. Closed-cell foam on timber roofs is never offered as a standard option.
- Mortgage-ready paperworkEvery install comes with the assessment, photos before and after, and a certificate pack in the format current lender guidance asks for.
- Removal when it's the right answerIf spray foam is blocking a sale or remortgage, we remove it, inspect the timbers and re-insulate with breathable materials.
- Honest answersSome lenders and valuers refuse properties with spray foam. We say so plainly — and recommend mineral wool wherever it's the better choice.
Spray foam suitability assessment: £250–£450 — roof structure, ventilation, moisture and lender position, credited if you go ahead.
Book an assessmentWho it suits
Which homes is spray foam removal suitable for?
Is my home suitable?
Pick your property type for a straight answer on spray foam removal.
Guidance only — every home is different, and a survey confirms what suits yours.
Houses
- Detached house
- Semi-detached house
- End-of-terrace
- Mid-terrace
- Townhouse
- Mews house and cottage
- Detached bungalow
- Semi and terraced bungalow
- Chalet and dormer bungalow
- Period home
- 1930s home
- Post-war and ex-council house
- Non-traditional / system-built
- Listed building or conservation area
- Farmhouse, barn conversion or rural home
- New build or self-build
Flats and blocks of flats
Commercial and public buildings
Usually suitable Depends — a survey confirms
Not usually suitable for 1 property type
- Park and mobile home — Park and mobile homes need specialist systems, which we arrange through a partner rather than standard measures.
Materials and brands
What we use
Remove spray foam, inspect timbers, re-insulate with breathable mineral wool or wood-fibre.
Insulation brands we work with
- Knauf Insulation (Earthwool, Supafil blown)
- Rockwool
- Superglass
- Isover
- Kingspan
- Celotex
- Recticel
- Xtratherm
- Steico wood-fibre
- YBS and Actis multifoil
The exact system and brand for your home are confirmed in your written quote.
Heat, bills and EPC
What it does for your heat loss, bills and EPC
Removing spray foam is about the roof's health and your home's saleability. Re-insulating with breathable mineral wool or wood-fibre restores the insulation, so heat loss through the roof stays low once the foam has gone.
See the EPC points and savings for your home in the EPC plannerU-value before and after, typical heat and bill saving, and EPC points — worked out for your property.Price
How much does spray foam removal cost?
| Service | Typical range, installed |
|---|---|
| Spray foam removal and re-insulation | £2,500–£6,500 |
Indicative ranges for London and the South East, supplied and installed, including VAT. Updated 11 October 2026. A survey confirms your final price.
VAT on this work
Insulation installed in homes in Great Britain is zero-rated for VAT until 31 March 2027. Other parts of a job like this — such as a new roof covering, structural work or waterproofing — may be standard-rated. Your quote shows the split.What to expect
Time on site, disruption and approvals
Time on site
Usually a few days, depending on the roof size and how much foam there is.
Disruption
Messy work, but contained to the loft — we protect the hatch, landing and the route through your home.
Planning and building control
You get an inspection report on the timbers, and the roof is re-insulated to Building Regulations Part L with breathable materials.
Guarantee and standard
Inspection report. The guarantee and certification for your job are confirmed in writing in your quote.
60-second grant check
Could a grant help pay for it?
Grant eligibility checker
About 60 seconds · plain results: likely, possibly or not eligible
Before we start
What type of property is it?
Questions
Spray foam removal: your questions answered
How much does spray foam removal cost?
Typically £2,500–£6,500 for spray foam removal and re-insulation, installed in London and the South East, including VAT and before any grant. Prices updated 11 October 2026. A survey confirms your final figure.
Can spray foam be removed?
Yes. We cut and strip the foam from the rafters, clean back the timbers, inspect them for damage or decay, then re-insulate with breathable mineral wool or wood-fibre.
Will removing spray foam help me sell or remortgage?
Removing the foam and providing an inspection report deals with the issue lenders and valuers most often raise. Each lender sets its own criteria, so check with your lender or broker what they need to see.
What if the roof timbers are damaged?
We report what we find with photos. Any repairs are quoted separately before the new insulation goes in.
How is the roof insulated after removal?
With breathable materials — mineral wool between the joists or wood-fibre to the rafters — and the ventilation restored, so the roof can dry out.
Group A
More in loft and roof insulation
Loft insulation
Mineral wool laid between and across the joists to 270–300 mm so heat stays in the rooms below.
Loft insulation top-up
An extra cross-layer over existing insulation to reach the recommended 270 mm or more.
Blown loft insulation
Loose-fill insulation blown into awkward, shallow or low-headroom lofts that rolls can't reach.
Loft clearance and replacement
Old, damp or damaged insulation removed, the loft cleaned, then new mineral wool fitted.
Raised loft boarding and storage
Loft legs or raised boarding over full-depth insulation, so storage doesn't crush it.
Insulated loft hatch and ladders
An insulated, draught-sealed hatch and loft ladder — a small add-on that stops a big leak.
Begin your project
Start with the suitability assessment
Tell us about your home and we'll arrange a survey, then a fixed written quote — no obligation.