27 JUL 2020

What to Know About Claim-Filing for Your Cavity Wall Insulation

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Cavity Wall Insulation (CWI) is primarily installed for a property’s overall energy efficiency. After the CWI completion, the Cavity Insulation Guarantee Agency (CIGA) checks the installation and issues a 25-year cavity certificate upholding its energy efficiency feature.

Now, what if you find out there’s a problem with the insulation after that? You may investigate further and see if you can file a claim to remedy the situation of mis-sold product. Here’s what you need to know about filing a claim for your cavity wall insulation:


Cavity wall insulation in a nutshell

Cavity Wall Insulation (CWI) is a wall insulation installed between internal and external brick walls. It inhibits heat transfer and reduces heat loss. It immobilises the air within the cavity and prevents convection. The material used may be foam, mineral fibre, or polystyrene beads.

  • Effects of a poorly installed CWI: It’s vital to ensure the CWI is of quality material and properly installed. If not, it can lead to problems, such as dampness, dry rot, and condensation. It can even cause serious issues, such as mould growth and infestation. It can damage your property and affect the health of the household.
  • Signs of a faulty CWI: There are visible and hidden signs of a faulty CWI you should be wary of. Typically, there’s a problem if your house isn’t adequately insulated, and you get exorbitant energy bills. You’ll also notice mould presence, foul odour, and damp patches in your property. When inspected, you’ll discover rotting woodwork, peeling wallpaper, moist walls, and wall and window condensation.


Filing a claim for your cavity wall insulation

Let’s take a closer look at the process of making a claim for your cavity wall insulation.

  • Eligibility: You are eligible to file a claim if you see or discover signs of a faulty CWI mentioned above. If you notice one or several of them, get your wall inspected to confirm the actual problems with your CWI. Then, you can lodge a claim.
  • Timeframe: If you want to make a claim, your CWI must have been installed within the last six years. If you consider the inclusion of a personal injury claim brought by affected health, you must submit a claim within three years.
  • Requirements: There are a few requirements to comply with for your claim-filing. You must submit pertinent documents, such as receipts of work or deposit, property photos before and after installation, warranty of the installation work, signed contract or agreement provided, and property assessment report given by the sales or installation company.
  • Resolutions: If a claim is successfully filed and faulty CWI is proven, you will get compensation. This resolution may include removing the faulty CWI from your property, having the correct installation of new CWI, and full rectification of any damage brought by the faulty CWI.



If you do not get what you were promised, then it’s your right to claim and seek proper compensation. It also applies to the installation of CWI on your property. Consider all the valuable information discussed above. As the CWI claim process can be complex, it’s best to work with a claims expert who can guide you.

Do you plan to make a claim for your cavity wall insulation? We help customers file claims for mis-sold products or services—from mis-sold solar panels to mis-sold PV. Let our Consumer Reclaim experts assist you. Contact us today on 0161 348 7670 or email info@consumer-reclaim.co.uk!


Consumer Reclaim Ltd is regulated by the Financial Conduct Authority in respect of regulated claims management activities, reference number: 835212. Registration is recorded at: https://register.fca.org.uk. Consumer Reclaim Ltd is registered in England and Wales, Company Registration number: 07223077. Information Commissioner Office number: ZA176000. VAT number: 144 4752 12