UK Banks That Accept Spray Foam Insulation (2026)
Lenders most likely to consider properties with spray foam — usually open-cell, well-documented, with appropriate ventilation.
Lenders most likely to consider spray foam
Acceptance is rare and conditional. The lenders below have demonstrated willingness to consider open-cell foam cases with full documentation. Always confirm via a broker.
| Lender | Foam type considered | Typical conditions |
|---|---|---|
| Leeds BS | Open-cell | PCA report + installer docs |
| Newbury BS | Open-cell | Independent inspection |
| Selected specialist lenders | Open-cell, sometimes closed | Higher rate, lower LTV |
Documentation that swings borderline cases
- BBA / KIWA product certification.
- Installer method statement and warranty.
- Independent loft inspection report.
- Confirmation of preserved roof ventilation.
Frequently asked questions
Are these lenders cheaper than removing the foam?＋
Often not. Higher rates over a 25-year term frequently exceed the one-off removal cost.
Will the list expand in 2026?＋
Possibly. Industry pressure for clarity is growing — but the trend so far has been tightening, not loosening.
Should I rely on a 'spray foam friendly' broker advert?＋
Verify with the lender directly — adverts often pre-date the latest policy changes.