Spray foam insulation was once promoted as an energy-efficient upgrade for UK homes, but it’s now causing unexpected headaches for many homeowners, especially when it comes to securing or renewing home insurance. Some insurers refuse to provide cover altogether, while others increase premiums or impose strict conditions once spray foam is found.
Insurers’ concerns go beyond the insulation itself; they also worry about what spray foam insulation might be hiding from damp and rot in roof timbers, to the challenges of carrying out thorough inspections.
In this guide, we’ll explain why spray foam insulation raises red flags for home insurance companies in the UK, what they check for when assessing your property, the rules around disclosure and how you can protect both your home and your insurance policy.
Why Does Spray Foam Insulation Affect Home Insurance?
When insurers find spray foam insulation in a property, it can raise several red flags. The material itself isn’t the main problem, but rather the issues that it can hide or create, making a home riskier to insure.
Risk of Structural Damage: If spray foam isn’t applied correctly, it can hold moisture against the roof timbers. This trapped moisture can eventually cause rot and serious structural issues that are expensive to fix.
Difficulty of Inspection: Spray foam covers large sections of the roof space, making it hard for surveyors to check for leaks, decay or pest problems. If insurers can’t get a clear look at the condition of the roof, they may see the home as high risk.
Moisture and Dampness Problems: Closed-cell spray foam is designed to block moisture, but poor installation can trap water inside the roof. This can accelerate mould growth and timber decay, which can lead to costly repairs. In some cases, this can also create health risks from spray foam insulation, especially for those with respiratory conditions.
These risks influence how insurers respond, and as a result, many homeowners encounter more difficulties when trying to obtain or maintain insurance coverage.
Common Spray Foam Insulation Issues for UK Homeowners
When spray foam insulation is discovered in a property, homeowners often encounter a range of insurance-related problems. Here are the most frequent issues reported:
- Policy refusals: Some insurers refuse to provide cover once spray foam is identified during inspections.
- Higher premiums: Increased risk of hidden damage or damp means many homeowners pay more for insurance.
- Removal requirements: Insurers may insist that spray foam be removed before granting or renewing coverage.
- Fewer insurance options: Some homeowners can only get cover from a small number of providers, often at a higher cost and with extra conditions.
What Insurers Look for When Assessing Spray Foam
When insurers assess a home with spray foam insulation, they focus on several key factors to understand the risk and decide on insurance terms.
- Professional installation certification: Insurers want proof that the spray foam was installed by a qualified professional, ideally certified by recognised bodies. This ensures the work meets UK building regulations and safety standards.
- Routine Roof Inspections: Insurers may require periodic inspections to ensure the roof stays in good repair and any issues are caught early. Being able to spot signs of spray foam damage in your home can help you maintain coverage.
- Compliance with UK building regulations: Spray foam must meet UK building codes; failure to comply can cause insurance problems.
- Type of foam used: Open-cell foam is generally preferred because it allows better ventilation. Closed-cell foam can trap moisture if installed incorrectly, which raises concerns for insurers
Do You Have to Tell Your Insurer About Spray Foam?
Yes, you must inform your insurer if your home has had spray foam insulation installed. Failing to disclose can lead to serious problems, including your insurer cancelling your policy, refusing to pay claims related to the spray foam. You may also find that you are unable to get cover later if insurance becomes too difficult or expensive to obtain.
If you’re also applying for a mortgage, be aware that spray foam can cause problems there aswell. Our guide to spray foam insulation mortgage tips for UK homeowners explains how to prepare and what lenders look for.
Always declare spray foam insulation when applying for or renewing your home insurance. It’s always a good idea to provide details about when it was installed and by whom, plus any inspection reports if available.
How to Protect Your Insurance When You Have Spray Foam
If your home has spray foam insulation, taking a few simple steps can help keep your insurance coverage secure.
- Always disclose spray foam insulation to your insurer when applying for or renewing your policy.
- Keep installation certificates, inspection reports and installer details to prove professional work.
- Schedule regular roof inspections, especially for closed-cell foam, to catch any issues early.
- Get professional advice if you’re unsure about the foam’s condition or compliance with regulations.
Thinking About Removing Spray Foam Insulation?
If spray foam insulation is causing insurance headaches or you’re worried about hidden damage in your home, our expert team at Remove Spray Foam is here to help. With years of experience and fully trained technicians, we safely remove spray foam while protecting your roof and property.
Before you start, it’s worth reading why you shouldn’t remove spray foam insulation yourself, even if it seems like a straightforward job. We’ll also guide you on how to prepare your home for spray foam removal so the process is smooth and stress-free.
We will provide all the necessary documentation to meet home insurance requirements, helping you to avoid costly delays and protect your investment.
Don’t let spray foam insulation jeopardise your home insurance. Contact us today to schedule a consultation or request a quote for spray foam removal services.










