Key Takeaways
- All three banks restrict lending on spray-foam properties, consistent with the majority of UK mainstream lenders.
- Differences between them tend to be in specific criteria and edge-case flexibility, not in the fundamental concern.
- A PCA-protocol inspection report may help in some case-by-case situations — verify with a broker.
- Professional removal plus RICS certificate resolves the issue for all three.
- A specialist broker is the most efficient way to identify which lender is most workable for your specific circumstances.
Barclays (as of June 2026)
Barclays is listed among lenders that restrict or decline mortgage applications on properties with spray foam on roof timbers (Homeowners Alliance/BBC research). The bank’s surveyor-led assessment process flags foam in the same way as other mainstream lenders: the timber cannot be inspected through the foam, so the structural risk cannot be quantified, and the application is restricted or declined.
Barclays does not publish detailed public guidance on how it approaches PCA inspection reports or other supporting documentation in spray-foam cases. A specialist mortgage broker with current knowledge of Barclays’ underwriting approach is the right source of information. Do not make assumptions based on older published lists, as criteria shift.
HSBC (as of June 2026)
HSBC — one of the UK’s largest banks — also restricts mortgage lending on spray-foam properties under its standard criteria. The logic is the same: foam on rafters creates an inspection barrier; HSBC’s lending criteria respond to the surveyor’s flag by restricting or declining.
HSBC’s approach to supporting documentation (PCA inspection reports, for example) should be confirmed through a specialist broker. As with all lenders, there may be limited case-by-case flexibility for certain situations, but this cannot be assumed.
Santander (as of June 2026)
Santander UK is included in the same industry research identifying 50+ lenders with restrictive spray-foam policies. Its mortgage underwriting follows the same surveyor-led model, and foam on roof timbers triggers the same limitation.
Santander’s specific criteria regarding foam type, PCA inspection reports, and the exact documentation required for removal cases should be verified with a regulated broker or directly with Santander’s mortgage team. Policies evolve and what applied six months ago may not reflect today’s position.
Common Threads Across All Three
Despite being separate banks with distinct underwriting teams, Barclays, HSBC and Santander share a consistent set of characteristics in how they handle spray-foam applications:
The surveyor is the pivot. All three lenders rely on a surveyor’s assessment report. When foam prevents adequate timber inspection, the report flags it. The lender’s lending criteria then apply, and the result is restriction or refusal.
Equity release is not available. Across all equity-release providers (which include products from certain banks), spray foam is a disqualifying factor — consistent with the position across that entire market segment.
Policy can change. The UK government has pressed lenders to be more flexible with properties where foam was installed under a government scheme. Whether and how this translates to Barclays, HSBC or Santander’s criteria at any given time is something a broker with current knowledge can assess.
The fix is the same. An independent PCA-protocol inspection provides objective documentation. If a lender will not proceed even with that, professional removal followed by an independent RICS-verified certificate resolves the matter for all three and most other mainstream lenders.
Your Options
Whatever lender you are dealing with, the structured path forward is consistent:
1. Commission an independent PCA-protocol inspection to establish the objective state of your roof.
2. Consult a specialist mortgage broker to identify which lenders are currently most flexible and how to present your case.
3. If required, commission professional removal and secure an independent RICS-verified certificate.
Do not attempt to navigate multiple lender applications without broker guidance — unnecessary hard credit searches damage your credit file.
The Bottom Line
Across Barclays, HSBC and Santander — as across the majority of mainstream lenders — the pattern is the same: surveyors cannot inspect through foam, lenders restrict or decline, and the solution involves inspection, broker advice, or removal and certification.
Book a spray foam inspection or request a removal quote to begin resolving the issue.
Related reading: NatWest & RBS spray foam mortgage policy · Will lenders ever accept spray foam? 2026 outlook · Mortgage declined due to spray foam? Your next steps