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Cavity Wall Insulation across the North East

0800 Repair Gas provide fast, professional installation of cavity wall insulation across the North East of England.

0800 Repair Gas Engineer talking with customer

Polite, perfect and proud

We couldn't wish for a better service. So polite, so perfect and we are so proud of your work. Thank you


why cavity?

Why choose cavity wall insulation?

Cavity wall insulation is a really great way to maximise your home’s ability to retain heat, meaning you end up spending less on your heating bills.

Thermabead insulation is injected into the cavities of your exterior walls from the outside by our team of professionals, resulting in a cosier, more heat-efficient home.

0800 Repair Gas are an experienced and trusted local company who can get your insulation fitted in no time, with minimum disruption.

Savings of up to £250 a year on heating bills

  • 25 Year guarantee
  • A long-term solution that doesn’t require replacement
  • Quick installation in just a few hours
  • A more pleasant home environment
  • Reduce your carbon footprint
  • Funding available through the government ECO scheme (subject to eligibility)
Free Cavity wall insulation to qualifying ECO households Found out instantly by completing our online form
Funding available

Funding available

We work with partner suppliers of the government’s ECO scheme, which provides cavity wall insulation funding for those eligible.

Save £££s

Save £££s

With cavity wall insulation installed, you stand to save up to £250 a year on your heating bills.

0800 Repair Gas

Why choose us?

At 0800 Repair Gas, we pride ourselves on providing a high-quality service, delivered with a smile.

Our qualified experts survey your home, determine if your home is suitable for cavity insulation, explain everything to you and ensure any work is carried out at your convenience and to the highest standards.

  • A fast, friendly service from a local team
  • Years of industry experience
  • Use of modern cavity wall injection methods
  • ThermaBead bonded bead insulation for maximum heat capture and energy savings
  • Trusted installer working closely with obligated suppliers on the government ECO scheme

What is cavity wall insulation?

Cavity wall insulation is a very common form of insulation, where a special insulating material is injected in between the outer and inner walls of a building.

Since the 1980s it has been standard to include cavity insulation in all new build properties, but houses built before then may have large sections of exterior wall that are uninsulated or only partially insulated. This can mean a lot of heat escapes through the walls of your house, your home is often cold and you end up spending more on your energy bills.

To install cavity wall insulation, the insulation material is injected into the wall cavity from the outside. This means there is only minimal disruption caused - there is no need to go through the interior walls and no dust and mess is created in your home.


Party Cavity Wall

If your home is terraced or semi detached and was built after 1950, you will probably have a party wall with a cavity. You can now have this cavity insulated, saving money and sound proofing your adjoining wall(s).


How much does it cost?

Here at 0800 Repair Gas, we try to keep our pricing as fair and flexible as possible. For this reason, we have different options available, such as a pay monthly option. For those who are eligible, the government provides funding for cavity wall insulation through its ECO scheme.

  • Pay Monthly

    Pay Monthly

    Spread the overall cost as a manageable monthly fee.

  • FREE with the ECO Scheme

    FREE with the ECO Scheme

    If you are eligible, you receive a grant for your wall insulation.

  • Full payment

    Full payment

    You pay an initial deposit, and the rest after installation.



Get your free quotation today Call us today to book your home survey

Insulation Includes Premium ThermaBead Carbon Saver Material

We use a bonded bead insulation material called ThermaBead Carbon Saver. This modern, innovative material is perfect for insulating homes. It consists of oil-based, waterproof polystyrene beads that are bonded together with a special glue and injected into your wall cavity.

This results in a solid insulation material that also contains gaps to allow any moisture to drain down to the ground so it is not transferred into the walls. The material is perfectly designed to insulate your home whilst preventing damp.

The bonded beads are of to 20% more efficient than traditional fibre insulation - you can earn back any money you spend in 4 years thanks to your new, much lower energy bills! The material is fire safe, BBA approved and fully durable.


The process

  • Arrange visit

    Arrange visit

    Get in touch with us via our contact page or by calling 0800 114 3308 to arrange a time for us to come and survey your property.

  • Home survey

    Home survey

    One of our insulation experts will come and assess your property to check it is suitable for cavity wall insulation and, if so, arrange an installation date.

  • Installation


    At a time that’s convenient for you, we will come round to install your insulation, carefully repairing drill holes afterwards.


Sit back and enjoy your cosy home and energy bill savings!


Get a quote today

0800 737 247