Leaseholders Secure Compensation After Years of Heating Failures and Roof Leaks
Leaseholders Secure Compensation After Years of Heating Failures and Roof Leaks
21 August 2026

Spray Foam Insulation and Mortgage Problems: Can a Lender Refuse to Lend on Your Home?

24 August 2026

What Homeowners Need to Know About Spray Foam Insulation and Mortgage Refusal

Spray foam insulation was sold to many homeowners as a modern way to improve energy efficiency, reduce heat loss and make their homes warmer.

For some homeowners, however, the first indication of a problem arises years later. They decide to sell, remortgage or release equity, only to be told that the spray foam insulation in the roof space is causing concern.

A surveyor may be unable to inspect the roof timbers properly. A mortgage lender may ask for specialist evidence, impose conditions or decline the application. A buyer may withdraw rather than wait while the position is investigated.

This can leave homeowners facing a difficult decision: should they pay to remove the insulation, find another lender, or investigate whether they have a legal claim against the installer or finance provider?

There is no universal rule that every property containing spray foam insulation is unmortgageable. Equally, the presence of spray foam should not be dismissed as irrelevant. RICS describes retrospective spray foam installation as a significant alteration to an existing roof’s performance and recommends assessing each property individually.

This guide explains why spray foam insulation can cause mortgage problems, why lenders may refuse an application, what evidence homeowners should obtain and when there may be grounds to pursue compensation.

Has your house sale already fallen through? Read our related guide, Spray Foam Insulation Claims After a House Sale Falls Through, which explains the options available where spray foam has caused a buyer or lender to withdraw.

Can A Mortgage Lender Refuse a Property with Spray Foam Insulation?

Yes. A lender is generally entitled to decide which properties it will accept as security and may decline to lend where its valuer cannot adequately assess the property’s condition or value.

However, this does not mean that:

  • every lender applies the same policy;
  • every spray foam installation is defective;
  • the property can never be mortgaged;
  • removal is always required;
  • a homeowner automatically has a compensation claim.

The result often depends on the type and location of the foam, the condition of the roof, the installation records, whether ventilation and condensation risks were properly considered, and the individual lender’s policy.

What Is Spray Foam Insulation?

Spray polyurethane foam is applied as a liquid and expands after application. In residential properties, it is commonly installed against or beneath parts of the roof structure.

The terms “open-cell” and “closed-cell” are frequently used to describe different forms of foam. Those descriptions matter, but they do not provide a complete answer about whether an installation is suitable.

A proper assessment should also consider:

  • the construction and age of the roof;
  • the type of roof underlay;
  • whether the foam was installed directly against tiles or felt;
  • whether a ventilation channel was required;
  • whether existing insulation was removed or retained;
  • the condition of the timbers before installation;
  • moisture readings and condensation-risk calculations;
  • whether the installation followed the manufacturer’s instructions;
  • the documentation, guarantees and certification supplied.

RICS advises that there is no single installation solution suitable for every property.

Retrofitting insulation changes the relationship between the individual components of a building, so the entire roof design and condition must be considered rather than treating the foam as an isolated product.

Why Can Spray Foam Insulation Cause Mortgage Problems?

A mortgage lender advances money secured against a property. It therefore needs reliable evidence that the property is suitable security and is likely to retain sufficient value.

The concern is not necessarily the mere presence of the foam. It is often the uncertainty the foam creates.

The Roof Timbers May Be Difficult to Inspect

Where foam covers timber, felt, fixings or the underside of the roof covering, the surveyor may be unable to see whether there is:

  • staining;
  • moisture damage;
  • fungal decay;
  • insect attack;
  • splitting or movement;
  • previous defective repairs;
  • deterioration of the roof covering.

A surveyor who cannot see a material part of the roof structure may be unable to reassure the lender about its condition.

Moisture May Become Trapped

Traditional cold roof spaces are usually designed to allow ventilation. Retrospective spray foam can change a previously cold and ventilated roof void into a warmer, more sealed space.

That is not automatically defective. It does, however, require careful design.

RICS warns that incorrectly designed or installed insulation can contribute to uncontrolled condensation and damage. Some products should not be installed directly against certain roof underlays, while other systems require a dedicated ventilation channel or additional vapour-control measures.

Existing Roof Defects May Have Been Concealed

Spray foam should not be used as a substitute for repairing an ageing or leaking roof.

If it was applied over a defective roof covering, decayed timber or inadequate underlay, the foam may obscure rather than cure the problem.

This can leave the homeowner with both the original defect and the cost of removing an unsuitable installation.

The Lender May Not Have Enough Documentation

A lender or valuer may want to see evidence showing:

  • who installed the product;
  • the precise product used;
  • the installation design;
  • pre-installation roof-condition photographs;
  • moisture readings;
  • ventilation arrangements;
  • condensation-risk calculations;
  • manufacturer guidance;
  • accreditation or certification;
  • guarantees and warranties;
  • confirmation that any required building or listed-building consent was obtained.

RICS recommends retaining records and photographs from before, during, and after the work because they may later be required by valuers, lenders and conveyancers.

Is Every Property with Spray Foam Insulation Unmortgageable?

No.

Some lenders may be prepared to consider a property after receiving appropriate specialist evidence. Another lender may apply a more restrictive policy. The same lender may also reach different decisions on different properties because the condition, installation and supporting evidence are not identical.

Cornwall Council’s current Trading Standards guidance states that many major lenders will consider properties with spray foam, although each case is assessed individually. It recommends contacting the proposed lender at an early stage to establish what evidence it will require.

A homeowner should therefore avoid assuming either that:

  • the property is worthless and can never be mortgaged; or
  • the lender must accept it because no physical defect has been proven yet.

Neither conclusion is safe without a proper assessment.

Does Spray Foam Insulation Have to Be Removed Before a Sale or Remortgage?

Not always.

There is no general law requiring all domestic spray foam insulation to be removed.

Whether removal is necessary is a technical and commercial question rather than a universal legal rule.

Removal may be considered where:

  • the installation is technically unsuitable;
  • moisture or decay has been identified;
  • the roof cannot be inspected adequately;
  • the foam was applied over defective materials;
  • the installation lacks essential documentation;
  • the buyer’s lender will not proceed while the foam remains;
  • the installation breaches restrictions affecting a listed building;
  • the cost and delay of obtaining further evidence outweigh the cost of removal.

However, homeowners should be cautious about paying for immediate removal merely because a cold caller says it is necessary.

Current Trading Standards guidance warns that some homeowners are being approached by businesses offering costly inspection or removal services and claiming urgent action is required. Removal may be unnecessary and does not itself guarantee that a mortgage application will be accepted.

What Should You Do If a Mortgage is Refused Because of Spray Foam?

The first step is to establish the exact reason for the decision.

Ask the lender, broker or valuer to confirm:

  • whether the application was refused solely because spray foam was present;
  • whether a specialist report would be considered;
  • what qualifications the specialist must hold;
  • what questions the report must address;
  • whether removal is mandatory under that lender’s policy;
  • whether the decision concerns the condition of the roof or simply insufficient evidence;
  • whether the lender would reconsider after remedial work.

A brief statement that “spray foam is unacceptable” may not tell you whether the issue is the installation itself, the inability to inspect the roof or the lender’s internal policy.

Should the Spray Foam Installer or Removal Company Inspect it?

An installation or removal company may have useful technical information, but it has an obvious commercial interest in the outcome. Where a sale, remortgage or potential legal claim is at stake, an independent inspection is usually preferable.

RICS recommends obtaining advice from an independent, impartial professional who is commercially separate from the installer and manufacturer.  The Property Care Association and Residential Property Surveyors Association have also developed an investigation protocol intended to assist property professionals in identifying installations where the risk of decay has not been materially increased and those requiring further investigation.

What Should a Specialist Spray Foam Inspection Report Include?

The scope will depend on the property and the lender’s requirements, but a useful report may need to address:

  • the roof construction;
  • the apparent type and extent of the foam;
  • whether timbers remain visible;
  • the condition of exposed roof timbers;
  • moisture readings;
  • ventilation;
  • the roof underlay;
  • signs of condensation, leakage or decay;
  • whether the installation appears consistent with manufacturer guidance;
  • whether opening-up or destructive investigation is required;
  • whether the foam can remain;
  • any remedial work required;
  • whether removal is technically feasible;
  • the condition of the roof after any removal.

A legal claim may require more detailed expert evidence than a lender’s risk assessment. A solicitor should therefore be consulted before destructive work begins if litigation is being considered.

Can You Claim Compensation If a Mortgage Is Refused Because of Spray Foam?

Not automatically.

A mortgage refusal is evidence that a problem has arisen. It does not, by itself, prove that the installer, surveyor, seller or finance provider is legally responsible.

A viable claim normally requires evidence of a recognised legal wrong, loss and causation.

Possible legal grounds may include:

  • breach of contract;
  • failure to exercise reasonable care and skill;
  • misrepresentation;
  • failure to provide material information;
  • breach of statutory consumer rights;
  • negligence in design, inspection or installation;
  • liability involving a connected finance provider.

The precise defendant and cause of action will depend on how the product was sold, designed, installed and funded.

Breach Of Contract and the Consumer Rights Act 2015

Where a consumer contracts with a trader for installation services, the Consumer Rights Act 2015 generally requires the service to be performed with reasonable care and skill.

The contract may also contain express promises about:

  • suitability;
  • energy savings;
  • guarantees;
  • mortgageability;
  • roof protection;
  • expected lifespan;
  • compliance with industry standards.

If those promises were untrue or the workmanship fell below the required standard, the homeowner may have contractual remedies.

A claim still requires proof that the breach caused the loss being claimed. For example, the homeowner may need expert evidence showing that removal or roof repair was required because of defective installation rather than merely because one lender chose not to accept the property.

Misrepresentation And Misleading Sales Practices

A claim may also arise where a homeowner was induced to enter the contract by a false or misleading statement.

Examples could include a representation that:

  • the product was universally approved by mortgage lenders;
  • the installation could not affect a future sale;
  • the roof had been fully surveyed and found suitable;
  • the work carried a comprehensive guarantee when it did not;
  • the product would cure an existing roof leak;
  • the installation was approved or funded by the Government when that was not true;
  • removal would never be needed.

The legal significance of any statement depends on its precise wording, whether the homeowner relied on it and what documents were provided before the contract was signed.

Can You Claim Against the Finance Provider?

Possibly.

Where the installation was funded through a qualifying regulated credit agreement, the homeowner may have additional rights under the Consumer Credit Act 1974.

Section 75 can, in appropriate circumstances, make a creditor jointly liable with a supplier for a misrepresentation or breach of contract. Section 140A may also be relevant where the relationship between creditor and debtor was unfair.

These are fact-sensitive provisions. They do not apply to every payment arrangement, every loan or every transaction value.

Relevant documents include:

  • the credit agreement;
  • installation contract;
  • invoice;
  • deposit receipt;
  • bank and credit-card statements;
  • documents identifying any broker;
  • pre-contract explanations;
  • sales literature;
  • cancellation documents.

A finance claim may be particularly important where the installer has ceased trading or lacks assets or insurance.

What Losses Could Be Recovered in a Spray Foam Insulation Claim?

Depending on the legal basis and evidence, a claim might include:

  • reasonable inspection costs;
  • necessary removal costs;
  • roof-repair costs;
  • reinstatement costs;
  • diminution in property value;
  • wasted conveyancing or survey fees;
  • additional mortgage or bridging costs;
  • losses arising from a failed transaction;
  • the price paid for defective work;
  • interest.

Not every financial consequence will be recoverable. The loss must be legally attributable to the wrongdoing, properly evidenced, sufficiently foreseeable and reasonably mitigated.

For example, a homeowner who commissions immediate removal from the first cold caller without obtaining independent advice may face an argument that some of the cost was unnecessary or excessive.

What Evidence Should You Keep for a Spray Foam Claim?

Keep the following wherever possible:

  • the original contract;
  • quotation and invoice;
  • finance documents;
  • sales brochures;
  • guarantees and warranties;
  • product certification;
  • surveys completed before installation;
  • photographs before, during and after installation;
  • emails, messages and call notes;
  • lender and broker correspondence;
  • valuation reports;
  • buyer enquiries;
  • evidence of a failed sale;
  • removal quotations;
  • independent survey reports;
  • proof of financial losses.

Do not allow foam to be removed before considering whether an expert needs to inspect it. Removal can destroy evidence about the type, extent and quality of the installation.

How Long Do You Have to Bring a Spray Foam Insulation Claim?

Different limitation periods can apply depending on the legal basis of the claim.

A straightforward contractual claim is commonly subject to a six-year limitation period running from the breach. Claims in negligence, misrepresentation and consumer credit may involve different rules, including provisions concerning later knowledge in some circumstances.

Limitation is technical. Discovering the problem recently does not always mean that the limitation period has only just started.

Homeowners should obtain legal advice promptly and should not wait for a sale to collapse completely before investigating their position.

What to Do If Spray Foam Insulation Is Affecting Your Mortgage

Spray foam insulation does not automatically make a home defective or permanently unmortgageable. It can, however, create serious practical and financial difficulties where the installation was unsuitable, poorly documented or carried out without proper consideration of the roof as a complete system.

Homeowners should resist pressure to take immediate action without independent advice. The correct approach is usually to establish why the lender is concerned, obtain a technically reliable assessment and preserve the evidence before deciding whether removal or legal action is appropriate.

Where defective workmanship, misleading sales practices or a breach of contract has caused measurable financial loss, compensation may be available. The strength of the claim depends not on the mere presence of spray foam, but on evidence showing what went wrong, who was responsible, and what loss followed.

Need Advice About a Spray Foam Insulation Claim?

If spray foam insulation is preventing you from selling, remortgaging, or releasing equity from your home, it is important to understand why the lender has raised concerns before paying for removal or other remedial work.

Where the installation was unsuitable, carried out without reasonable care and skill, or sold on the basis of misleading information, you have grounds for a claim.

We do not generally act for clients simply because they regret having spray foam insulation installed or because a lender has raised questions about it.

MJV Solicitors can review the circumstances of the installation, the evidence available and any finance arrangements to help establish whether compensation may be recoverable.

Speak to MJV Solicitors

If you think you may have a spray foam insulation compensation claim, get in touch, and our team will review your situation.

Call: 01253 858231

Email: info@mjvlaw.co.uk

Make an online enquiry.

Related Spray Foam Insulation Guides

Spray Foam Insulation Claims After a House Sale Falls Through

Spray Foam Insulation Claims: When Poor Insulation Causes Problems with Your Home

Spray Foam Insulation Scandal

Frequently Asked Questions

No. Spray foam insulation is not generally illegal. Its suitability depends on the building, the product, the design, and how it was installed. Installation in a listed or otherwise protected building may require prior consent. RICS advises that retrospective spray foam is unlikely to be considered reversible because removal can damage the existing structure.

No. Removal may help, but it does not guarantee approval. A lender may still require evidence about the condition of the roof, particularly where removal has damaged the underlay, tiles or timbers.

Yes. A lender’s concerns are not determined solely by whether the foam is described as open-cell or closed-cell. Visibility, roof condition, ventilation, documentation and compliance with the installation design also matter.

Potentially, but a cash buyer may still instruct a surveyor, negotiate a reduction or withdraw. Selling at a discount may also raise questions about whether a recoverable diminution in value has occurred.

Treat it cautiously. A company that profits from removing foam is not independent. Obtain advice from a suitably qualified professional without a financial interest in recommending removal.

A direct claim may be difficult to enforce, but there may be other routes, including claims against a finance provider, insurer or another professional involved in the transaction.

Possibly, but proof is important. You would need evidence of the transaction, the reason it failed, the costs incurred and the legal breach said to have caused the failure.

Yes. RICS expressly recommends checking the position with both the mortgage lender and insurer before installation.

Conveyancing price guide

Introductory paragraph explaining price transparency and why the costs are displayed below.

Our Service

We will (depending on whether we are acting for the buyer or seller):

  1. Comply fully with the Law Society’s Protocol for Conveyancing transactions;
  2. Prepare or consider all initial documents including the contract, property information form, fixtures and fittings forms, legal title and any other such documents required by the individual circumstances of the transactions;
  3. Prepare or consider enquiries and prepare or consider the responses;
  4. Consider the search reports on a purchase;
  5. Prepare a report on purchase properties;
  6. Assist with the execution of the contract and transfer as well as any other documents that are required;
  7. Exchange and complete the transaction;
  8. Comply with all post completion requirements;
  9. Submit a Stamp Duty Land Tax return upon completion.

Purchasing

How much will it cost?

If you are purchasing a freehold property, our fees on a purchase are:

Purchase price

Our fee

VAT

Total

£0-£100,000

£600

£120

£720

£100,001 - £150,000

£650

£130

£780

£150,001 - £200,000

£700

£140

£840

£200,001 - £250,000

£750

£150

£900

£250,001 - £300,000

£800

£160

£960

£300,001 - £400,000

£850

£170

£1020

£400,001 - £500,000

£900

£180

£1080

£500,001 - £750,000

£1000

£200

£1200

Each transaction will also incur the additional charges set out below:

Additional charge and explanation

Our fee

VAT

Total

Bank transfer fee

£30.00

£6.00

£36.00

Independent ID verification (per person)

£5.00

£1.00

£6.00

Depending on the specific nature of your purchase, we may also charge you the following:

Charge

Our fee

VAT

Total

Purchase of a leasehold house

£100.00

£20.00

£120.00

Purchase of any other leasehold property

£150.00

£30.00

£180.00

Purchase of a shared ownership property

£250.00

£50.00

£300.00

Gifted deposit

£50.00

£10.00

£60.00

New build property

£250.00

£50.00

£300.00

The above costs are for our fees only and all are subject to the disbursements on your matter.

Disbursements on a purchase

Please note that, subject to the relevant rules in operation at the time of your purchase and the value and nature of your purchase (i.e. whether you are a first time buyer or if you are purchasing a buy to let property), you may be required to pay Stamp Duty Land Tax on your purchase. This is not classified as a disbursement and we will advise you on your tax liability, if any, upon receipt of your instructions or specific enquiry.

Please note that our search and service providers often increase charges at little notice and so the disbursements quoted below are subject to change. We update this website as soon as possible following any such change.

Typically, the following searches are required for a purchase (all charges are inclusive of any VAT or insurance premium tax):

Local Authority’s current search fee (if Blackpool, Wyre or Fylde)

£122.70 inc VAT

Drainage and Water search fee

£79.50 inc VAT

Environmental search

£71.40 inc VAT

Land Registry priority title search

£3.00 no VAT

Bankruptcy search - £2 per seller named on the Register of Title

£2.00 no VAT

Land charges search - £2 per seller named on the Register of Title

£2.00 no VAT

It may transpire through the course of your purchase that further searches are required, but this is not typically so and most of our purchase matters complete having undertaken only the searches listed above.

You will have to pay a fee to register your property.

Purchase price

Land Registry registration fee (no VAT)

£0 - £80,000

£20.00 no VAT

£80,001 - £100,000

£40.00 no VAT

£100,001 - £200,000

£100.00 no VAT

£200,001 - £500,000

£150.00 no VAT

£500,001 - £1,000,000

£295.00 no VAT

£1,000,000 and above

£500.00 no VAT

Selling

How much will it cost? – Sale

If you are purchasing a freehold property, our fees on a purchase are:

Purchase price

Our fee

VAT

Total

£0-£100,000

£600.00

£120.00

£720.00

£100,001 - £150,000

£650.00

£130.00

£780.00

£150,001 - £200,000

£700.00

£140.00

£840.00

£200,001 - £250,000

£750.00

£150.00

£900.00

£250,001 - £300,000

£800.00

£160.00

£960.00

£300,001 - £400,000

£850.00

£170.00

£1020.00

£400,001 - £500,000

£900.00

£180.00

£1080.00

£500,001 - £750,000

£1000.00

£200.00

£1200.00

Over £750,000

To be negotiated

To be applied

To be agreed

Each transaction will also incur the additional charges set out below:

Additional charge and explanation

Our fee

VAT

Total

Bank transfer fee

£30.00

£6.00

£36.00

Independent ID verification (per person)

£5.75

£1.15

£6.90

We are currently on the panels of Lloyds Banking Group (Halifax, Birmingham Midshires and Lloyds) and Barclays. If you are purchasing a property with any of these lenders, we would be delighted to assist you, but cannot act where the mortgage is provided by any other lender.

Depending on the specific nature of your purchase, we may also charge you the following:

Charge

Our fee

VAT

Total

Sale of a leasehold house

£100.00

£20.00

£120.00

Sale of any other leasehold property

£150.00

£30.00

£180.00

Sale of a shared ownership property

£250.00

£50.00

£300.00

The above costs are for our fees only and all are subject to the disbursements on your matter.

Re-mortgages

We charge £500 plus VAT for acting on a re-mortgage.

Our disbursements are limited to the Land Registry searches of £3 per document (there is no VAT on Land Registry charges) and typically the total cost of these is between £6-£15 depending on how many documents are registered and whether the property being re-mortgaged is freehold or leasehold. Most lenders normally permit the purchase of no search insurance rather than undertaking new searches and this costs, inclusive of insurance premium tax.

Call us today: 01253 858 231