At AF Credit, we specialise in helping buyers purchase properties that mainstream lenders struggle to finance — including those with missing Building Regulations, title defects, short leases and other certification issues that cause transactions to stall.
Usually, yes. Many lenders will still lend where a FENSA certificate is missing, provided an acceptable solution exists — most commonly indemnity insurance, a replacement certificate from the FENSA database, or Building Control records. Where a lender delays or declines while the issue is being resolved, bridging finance can complete the purchase and keep the transaction on track.
What Is a FENSA Certificate?
FENSA stands for the Fenestration Self-Assessment Scheme — introduced to allow approved installers to self-certify that replacement windows and doors comply with Building Regulations without requiring a visit from Building Control. When a FENSA-registered installer completes replacement window works, they issue a certificate confirming that the installation meets the required standards and was carried out by a registered contractor.
The certificate is evidence of compliance — not just of who did the work. The issue for mortgage lenders is not the windows themselves, but whether the installation was carried out in accordance with Building Regulations.
Why Do Mortgage Lenders Care?
Lenders want confidence that the property complies with Building Regulations, that future buyers will not encounter legal issues relating to the windows, and that the property remains marketable. The FENSA certificate is the standard way of demonstrating this — but it is not the only way.
Alternatives to a FENSA Certificate
If windows were installed by a FENSA-registered contractor, a replacement certificate can often be obtained through the FENSA database. Usually the simplest solution where records have been lost.
Where Building Regulations approval was obtained through the local authority rather than a self-certification scheme, a Building Control Completion Certificate is equally acceptable to most lenders.
Where no certificate exists and replacement is not possible, indemnity insurance is the most common solution. It protects against financial loss from Building Regulations enforcement action and is accepted by many lenders for older installations.
FENSA indemnity insurance addresses certain legal risks — it does not confirm the installation was carried out to the correct standard, does not guarantee compliance, and does not repair defective work. Lenders generally accept it for older installations where enforcement is unlikely, but it is not a quality assurance certificate.
What Happens in Practice
The most common scenario is that a buyer's solicitor raises a requisition asking for FENSA certificates during conveyancing. The seller cannot locate them. The solicitor then advises on the available options — typically requesting a replacement certificate from FENSA, checking whether Building Control records exist, or obtaining indemnity insurance. In most cases one of these routes resolves the matter. Where a lender refuses to proceed while the issue is under investigation, or where timing becomes critical, bridging finance can complete the purchase and allow the legal issue to be resolved without the transaction collapsing.
When Does a Missing FENSA Certificate Cause Real Problems?
Most missing FENSA certificate issues are resolved administratively. Problems become more significant where:
- The lender takes a strict view and insists on a certificate rather than accepting insurance
- The windows were installed without any Building Regulations approval and regularisation is required
- The installation was recent and enforcement risk is higher
- The transaction is time-critical (particularly auction purchases)
- Multiple documentation issues exist alongside the FENSA issue
Where timing is critical — for example an auction purchase or a chain at risk of collapsing — bridging finance can provide breathing room to resolve the issue properly without the transaction failing.
Buying a Property With a Missing FENSA Certificate at Auction
Properties with documentation issues frequently appear at auction because conventional buyers become nervous about legal complexities. Auction purchases require completion within 28 days — leaving no time for protracted lender enquiries. Bridging finance is therefore particularly well-suited to these situations, as it can complete the purchase quickly while the legal documentation is resolved and refinancing arranged.
How AF Credit Can Help
AF Credit specialises in financing properties that mainstream lenders decline or delay. We regularly assist buyers purchasing properties with certification issues, missing Building Regulations, title defects and other documentation issues. Where there is a realistic strategy to resolve the issue and a clear refinance route, we can often provide bridging finance to facilitate the purchase.
Example
A buyer agrees to purchase a property for £325,000. During conveyancing, the seller cannot locate the FENSA certificate for replacement windows installed several years earlier. The lender requests additional information before releasing funds — and the transaction risks overrunning.
AF Credit provides bridging finance, allowing the purchase to complete within the required timeframe.
The documentation issue is subsequently resolved — indemnity insurance is obtained and accepted by the long-term lender. The property is refinanced onto a conventional mortgage and the bridge is repaid.
Frequently Asked Questions
Can you get a mortgage without a FENSA certificate?
Yes. Many lenders will still lend where the certificate is missing, provided an acceptable solution exists. Indemnity insurance, replacement certificates and Building Control records are all commonly used. Where a lender delays proceedings, bridging finance can keep the transaction on track.
Will missing a FENSA certificate stop a house sale?
Not in most cases. The more common outcome is a delay to exchange while documentation is obtained. However, some lenders take a stricter view and it is important to address the issue early in the conveyancing process.
Is FENSA indemnity insurance enough for a mortgage lender?
In many cases, yes — particularly for older installations where enforcement risk is low. Requirements vary between lenders and circumstances vary between transactions. See our building regulations guide for more on indemnity insurance in the context of missing approvals generally.
Can I get a replacement FENSA certificate?
Often yes. If the installation was carried out by a FENSA-registered contractor, a replacement can usually be obtained through the FENSA database. This is typically the simplest route where paperwork has been lost rather than never having existed.
Does AF Credit lend on properties without FENSA certificates?
Yes. AF Credit specialises in financing properties that fall outside mainstream lending criteria — including certification, title and documentation issues. Where there is a clear strategy to resolve the issue and a realistic refinance route, we can often consider bridging finance. See our broader unmortgageable property guide for the full picture.
If your mortgage has been delayed or declined because of a missing FENSA certificate, AF Credit may be able to help. Where there is a clear strategy to resolve the issue and refinance, we can often provide bridging finance to complete the purchase and keep your transaction moving.
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