Cavity Wall Insulation

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

Cavity Wall Insulation Installers

Are you looking for cavity wall insulation installers in the North East who provide a reliable and professional service? 0800 Repair is the perfect choice for cavity wall insulation.

With years of experience in the field, our team of experts are skilled in providing services that will help improve your home’s energy efficiency while also reducing your monthly bills. We understand how important it is to have trusted professionals carry out this work, which is why we only use the highest quality materials and techniques to ensure an excellent finish every time.

So if you’re looking for cavity wall insulation that meets all safety standards, contact us today! We guarantee that you won’t be disappointed.

A Wide Range of Cavity Wall Services

Our cavity wall insulation installers offer the following services:

  • Cavity wall insulation survey and assessment
  • Installation of cavity wall insulation
  • Design and installation of cavity wall insulation systems
  • Advice on energy conservation measures for your home
  • Fault finding in cavity walls
  • Repair of existing cavity walls to a high standard

We understand the importance of having an energy efficient home, which is why our team works hard to ensure that the insulation we install meets all safety standards and regulations. We also provide ongoing support should anything go wrong with your installation, so you can rest assured knowing that you’re in safe hands when you choose 0800 Repair.

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 in Durham 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.

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

Funding available

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

Save £££s

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

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

Spread the overall cost as a manageable monthly fee.

FREE with the ECO Scheme

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

Full payment

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

Get your free quotation today

Call us 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

1. 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.

2. 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.

3. Installation

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

Get in Touch Today

Contact us today to learn more about cavity wall insulation and how it can benefit you! We look forward to helping you improve the energy efficiency of your home.

By choosing 0800 Repair, you’ll benefit from

  • Professional cavity wall insulation installers with years of experience
  • The latest techniques and materials for a high quality finish
  • A cavity wall insulation survey and assessment
  • Advice on energy conservation measures for your home
  • Ongoing support should anything go wrong with your cavity wall installation

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