Can you claim compensation for cavity wall insulation?

Author: Dr. Easton Willms DDS  |  Last update: Monday, November 24, 2025

You have the right, as a consumer, to compensation for damage to your property caused by defective or improperly installed cavity wall insulation. Consumer Rights should be contacted immediately for assistance with your compensation claim.

Can I claim for cavity wall insulation?

You can actually claim off them if the failure of your cavity wall insulation breaches the dates of the guarantee. The installer should have parted with a certificate containing the details of your provider, and from there you can begin to reclaim what's rightfully yours.

What to do if cavity wall insulation fails?

If you suspect that damp problems in your home stem from failed cavity wall insulation, speak to your original installer to assess and correct the problem. Cavity wall insulation providers in the UK are legally required to issue 25-year guarantees. These are usually backed by CIGA (Cavity Insulation Guarantee Agency).

What is the payback time for cavity wall insulation?

Cavity wall insulation costs can sit between £1,000 - £4,600 depending on your property type and size, but can also bring you sky-high energy bill savings between £110 - £405 annually. In most cases, this means you can make the money back on your initial investment in just a short 10 years!

How do you prove cavity wall insulation?

You can do this by using a window or door and a tape measure to measure the distance between the outside wall and the inside wall. If the distance is over 260mm, then it is likely cavity insulation has been installed in between the inside and outside wall.

Cavity Wall Insulation Problems ~ The Ugly Truth

Why is my house so cold even with cavity wall insulation?

This is another symptom of your cavity wall insulation's deteriorating health. Your boiler and radiators are working overtime to try and warm your house up, the heat wants to escape, and your insulation is allowing it! If your insulation can't even hold itself up, then there's no chance of it holding your heat in.

What is the life expectancy of cavity wall insulation?

Here are some common types of cavity wall insulation and their approximate lifespan: Mineral Wool Insulation: 25 to 30 years. Foam Insulation: 20 to 25 years. Bead Insulation: 30 to 40 years.

How long does it take for insulation to pay for itself?

Insulation Pays For Itself In Only 2.5 Years

Fiberglass insulation, for instance, can cost roughly $1,500 to insulate an attic, but it can reduce consumers' energy bills up to $600 annually. As a result, the insulation pays for itself in only 2.5 years.

What are the downsides of cavity wall insulation?

Summary: Top five problems with cavity wall insulation
  • It won't be effective if it's installed incorrectly.
  • It can sometimes damage the property.
  • It's not suitable for all homes. ...
  • It won't be effective if it's installed incorrectly. ...
  • It won't work if the property has any cracks. ...
  • It can sometimes damage the property.

How long is cavity wall insulation guarantee for?

Reputable cavity wall insulation installers will offer guarantees of up to 25 years on their work, ensuring that the long-term stability of your energy-saving cavity walls will be covered by them.

What houses should not have cavity wall insulation?

Properties without a DPC, or where the DPC is too low (typically less than 125mm from the ground) and a French drain has not been installed. Some properties with raked mortar joints. Properties with a cavity wall under 50mm or over 150mm. Properties that have significant rubble or mortar ingress in the cavity.

Can you have cavity wall insulation redone?

When the cavity is emptied, it should be refilled with a suitable option, such as injecting special insulation material like polyurethane foam, or some other alternative. Cavity wall extraction teams will cover up the holes, usually in the outer wall, with cement, so you would barely know that they have been there.

Is insulation deductible?

Under these guidelines, qualified improvements like installing insulation, heat pumps, and solar panels can qualify for up to 30% in tax credits. Note that certain products may require a 10-year warranty, and business owners can apply for specific tax credits if less than 80% of the home is used for business purposes.

How to tell if cavity wall insulation has failed?

How do I know if my cavity wall insulation has failed? Look for damp patches, mould growth, cold spots, increased bills, or condensation. These signs could signal potential insulation problems. It's important to ask for professional inspection and advice without delay.

Will cavity wall insulation stop mold?

Cavity wall insulation can significantly improve energy efficiency in homes. However, if not installed correctly, it can lead to damp and mould issues. This post explores how past government schemes failed to address ventilation, leading to problems, and how new standards like GBIS and ECO4 ensure homes are protected.

Does insulation pay for itself?

Many older homes have less insulation than homes built today, but even adding insulation to a newer home can pay for itself within a few years. To determine whether you should add insulation, you first need to find out how much insulation you already have in your home and where it is.

What time of year is insulation cheapest?

Best Time of Year to Buy Insulation

In this case, the spring is the best time, because you will also start to see savings in the summer months. The same is true for warmer climates, just different times of year because you'll want the job finished before the heat sets in.

How long do you have to stay out of your house after insulation?

During the off-gassing period, indoor air quality will plummet and begin to fluctuate before finally recovering after an average of 24 hours. Many spray foam insulation companies recommend homeowners stay out of the house for at least 24 hours.

Can you have cavity wall insulation done twice?

I'm sure you're aware that you can't fill, or 'top up' a cavity that's already been insulated, it can void your insulation guarantee provided by CIGA!

Should I replace 50 year old insulation?

Unfortunately, the majority of homes built 50 years ago were not insulated at all. It is important to be aware of these insulation issues if your home is 50+ years old. Replacement (or new installation) may be necessary if your home is drafty, if you have high utility bills, etc.

Is cavity wall insulation a fire risk?

Whilst such flame spread is unlikely to affect directly any inhabited areas of the building, sealing of cavities insulated with combustible boards is considered to be essential to prevent smoke spread, possible roof fires and destruction of the insulant.

Which is the best cavity wall insulation?

Polystyrene Beads

Yet, they're the ideal cavity wall insulation. Polystyrene beads, or EPS, are made of a carbon polymer, which is a poor thermal conductor. The polymer undergoes steam processing, filling up with air, and acquiring the classic bead shape we all know. This further helps reduce the conduction of heat.

How much is labor for insulation walls?

The labor cost for insulating a home can add from $0.25 to $2.50 per square foot, or anywhere from $40 to $80 per hour.

How much does a cavity wall inspection cost?

A cavity wall inspection can cost anywhere from £150 - £300, but some insulation companies provide free inspections with their cavity wall insulation packages.

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