Cavity Wall Insulation Carbon Saving Obligation

Can I Get Cavity Wall Insulation Free of charge?

Follow instructions below to check whether you qualify for free cavity wall insulation.

What is Cavity Wall Insulation?

A cavity wall is two layers of brick with a cavity between them. Most homes built with a cavity wall between 1924 and 1982 are likely not filled with any insulation.

Building regulations changed after 1982 where insulation was required to be fitted on any houses built from that point, but some of them weren’t. The properties built after 1982 that didn’t have cavity insulation fitted could be insulated for free with government grants if they were built before 2005.

Applications for free cavity wall insulations for October 2021 are now open.

Why Do Energy Companies Provide Cavity Wall Insulation Free of Charge?

This is due to the Energy Company Obligations scheme (ECO). Find out more about the ECO scheme here.

Energy suppliers can provide loft and cavity wall insulation worth up to £1100 combined to follow these government obligations. They have to make UK houses more energy efficient and tackle fuel poverty, especially for low-income households and vulnerable people. By not reaching the targets set out by the government, energy suppliers will face hefty fines.

They should follow the government scheme and put money into making UK homes more efficient because the alternatives of getting fines would be far worse. But it’s great for us!

Free cavity insulation can save you a lot of money; check your eligibility now!

What is Free Cavity Wall Insulation Made From?

Free cavity wall insulation used by installers (like us!) is often made from shredded mineral wool or polystyrene beads, which both reduce the heat escaping from your home by up to 35%.

Did you know that you could save up to £145 each year on your energy bills with cavity wall insulation and reduce carbon emissions by up to 610kg? Check whether you are eligible for free wall insulation.

Is My House Suitable For Free Cavity Wall Insulation?

There is a chance that free cavity wall insulation won’t be suitable for your home, but here’s how you can tell if your home is suitable:

  • The external walls are unfilled cavity walls.
  • It has at least a 5cm wide cavity.
  • It was built before 1990.
  • Your property’s brickwork or masonry is in good condition.
  • There is little risk of your house flooding.
  • The walls are not exposed to too much driving rain.

If you are still unsure, we could help you! Simply answer some questions, and we will give you a call for some advice and a brief assessment.

Cavity Wall Insulation Free qualification
UK location

Can Location Impact Getting Cavity Wall Insulation Free?

Cavity wall insulation can significantly improve the energy efficiency of your home and reduce your heating bills. However, the location of your home does impact your ability to receive free wall insulation.

This is mainly due to the severe exposure to wind-driven rain. This particularly affects the west side of the country, in England, Wales, and Scotland.

However, other forms of wall insulation are available, which can also aid in making your home energy-efficient, including solid wall insulation, internal wall insulation, or external wall insulation. Find out more here.

Can I Get Cavity Wall Insulation for Free Even if I’m Not on Benefits?

The free element of getting cavity wall insulation is because of the ECO scheme, as previously mentioned.

Suppose you are not entitled to a free cavity wall insulation grant (which you can check here). In that case, you can still arrange a free assessment and quote from UK Energy Support.

Even if you happen to have to pay for your cavity insulation, you should be able to make all that back in five years or less with the money you can save on your yearly energy bills.

The government benefits you receive that would likely make you eligible for free cavity insulation are:

  • Child Tax Credit
  • Child Benefit
  • Working Tax Credit
  • Universal Credit
  • Pension Guarantee Credit ( not to be mistaken for just
  • Pension Savings Credit)
  • Income Support
  • Jobseeker’s Allowance (JSA)
  • Employment and Support Allowance (ESA)
  • Disability Living Allowance
  • Personal Independence Payment (PIP)
  • Attendance Allowance
  • Carer’s Allowance
  • Severe Disablement Allowance
  • Industrial Injuries Disablement Benefits
  • War Pensions Mobility Supplement
  • Constant Attendance Allowance
  • Armed Forces Independence Payment

Would I Qualify For Free Cavity Wall Insulation?

Qualifying for free wall cavity insulation includes:


Owning your own home or privately renting one (but you must get the landlord's permission first)


Have a high carbon-emitting home


Receive income-related benefits

ECO 3 is a government backed scheme

UK GOV website address

Why Should I Apply For Free Cavity Wall Insulation?

Perhaps you are already thinking about applying. But if you’re still not undecided, here are some examples of other reasons why you should apply:


Quick turnover

There is minimal disruption to you, as the process only takes up to a few hours.



UK Energy Support guarantees high-quality services.


Reduce bills

Getting cavity wall insulation reduces your heating bill, giving you more money to spend on yourself and your family.


Reduce carbon footprint

Your carbon footprint will be reduced, meaning you are playing a part in saving our planet.

Don't wait! Apply Today

Here at UK Energy Support, we want to help as many people as possible improve their energy consumption. We would be happy to help you in any way we can, so get in touch and start saving now!