External Wall Insulation Grants

You might qualify for free external wall insulation, complete our online quick form to see if you qualify and start saving on your energy bills.

All home external wall insulations are carried out by certified heating experts.

Verify your eligibility today.

Apply for an external wall insulation grant

Stellar Insulation Ltd is dedicated to assisting you in improving your home’s energy efficiency by helping you gain access to government grants specifically for external wall insulation.
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What are external wall insulation grants?

Grants for external wall insulation can be provided under the ECO4 government-backed scheme for eligible UK homeowners.

These programs aim to assist homeowners and landlords in enhancing the energy efficiency of their properties by incorporating insulation into their external walls.

The process of external wall insulation involves fixing insulation boards or alternative materials to the exterior of your home.

This method effectively minimises heat loss, leading to reduced energy bills. The insulation is shielded by a protective layer, such as render or cladding.

You may also be eligible for cavity wall insulation if your property has solid walls.

People who meet the ECO4 eligibility criteria can access grants for external wall insulation. The grant’s availability and amount depend on factors like:

  • The age of your property
  • The location of your property


The government ECO4 grant aims to target low-income households and those in fuel poverty, but it may also be accessible to other homeowners and landlords seeking to enhance the energy efficiency of their properties.

How do I know if I qualify for a ECO4 external wall insulation grant

Type of heating system

To apply for an ECO4 External wall insulation (EWI) grant your property must also qualify for a heating and heating controls upgrade. This may require the installation of a new boiler with heating controls which is also covered by the ECO4 grant.

To qualify for a home heating upgrade with external wall insulation, the current home heating system of your property must be one of the following:

  • Non-Condensing Boiler
  • Back Boiler
  • Oil Boiler
  • LPG Boiler
  • No heating at all
  • No Gas Central Heating
  • Electric Storage Heating or Electric Room Heaters
  • Electric Boiler
Type of heating system

Your current home EPC rating must also be an E, F or G. You can use the link below to check your property’s current EPC rating.

Other key factors for eligibility

Eligibility for a grant to install external wall insulation will depend on factors such as:

Household income level
ECO4 Grants specifically aim to support households with low incomes. To be eligible, you need to provide evidence that your annual household income is below £31,000.
Heating upgrade
To be eligible for a grant for external wall insulation, you must meet the criteria for a heating upgrade; standalone grants for external wall insulation are not available.
Property ownership
You must be a homeowner living in the UK to apply for an ECO4 government funded grant.
Benefits claims
To qualify for the grant, you must receive specific benefits like Pension Credit, Child Tax Credit, or Working Tax Credit. A full list of eligible benefits can be found below.
Type of walls
To be eligible for external wall insulation grant, your property must have solid walls and not cavity walls.
Home EPC rating
To be eligible for a grant to install central heating, your home must have a low energy efficiency rating, which can be indicated by an EPC (Energy Performance Certificate) of F or G.
Find out if you qualify for an external wall insulation grant.

What are the qualifying government benefits for an external wall insulation grant

To qualify for an external wall insulation ECO4 grant, you or someone in your household must be receiving one of the following benefits.
External Wall Insulation Grant Pension Savings Credit

Pension Savings Credit

External Wall Insulation Grant Housing Benefit

Housing Benefit

External Wall Insulation Grant Universal Credit

Universal Credit (UC)

External Wall Insulation Grant Child Tax Credits

Child Tax Credits (CTC)

External Wall Insulation Grant Working Tax Credit

Working Tax Credit (WTC)

External Wall Insulation Grant Pension Guarantee Credit

Pension Guarantee Credit

External Wall Insulation Grant Income Support

Income Support (IS)

External Wall Insulation Grant Income Related Employment & Support Allowance

Income Related Employment & Support Allowance (ESA)

External Wall Insulation Grant Income Based Jobseekers Allowance

Income Based Jobseekers Allowance (JSA)

What are the benefits of External Wall Insulation?

External wall insulation offers a range of benefits as shown below.

Reduce your home energy bills
Insulating your walls can result in annual energy bill savings of up to £475.
Reduce carbon footprint
Wall insultation can help to reduce your carbon dioxide emissions by up to 1.9 tonnes annually.
Reduction heat loss
External wall insulation can decrease the heat loss from your home by as much as 40%.
Hassle-free installation
External wall insulation process is typically swift, uncomplicated, and trouble-free.

External wall and cavity wall insulation grant helps homeowners seeking to enhance the energy efficiency of their homes, leading to reduced bills and carbon emissions.

What Is External Wall Insulation?

External wall insulation involves fixing an insulating layer to the exterior walls of your home, which is then coated with a specialised plaster, render or cladding. Older homes constructed before the 1920s typically feature solid walls instead of cavity walls.

Solid walls tend to allow more heat to escape, compared to cavity wall.

The implementation of external wall insulation helps in minimising heat loss through your home’s walls, contributing to lower energy bills.

Start a claim for an external wall insulation grant
External wall insulation grant FAQs

Listed below are some of the common questions and answers for the UK Government ECO4 external wall insulation grant. If you cannot find the answer to your question, then simply contact us for a free consultation.

ECO4 stands for the Energy Company Obligation which is a government-led energy efficiency initiative in the United Kingdom. Its primary objectives are to decrease carbon emissions and address issues related to fuel poverty.
Eligibility criteria are usually determined by factors such as income, received benefits, and the overall energy efficiency of your home. Generally, applicants must be recipients of one of the eligible benefits on noted above.
The expenses for external wall insulation under ECO4 can vary, but the grants provided may cover a substantial portion of the costs. On average, without the grant, the cost is approximately £100 per square meter.
Eligible benefits may include Income Support, Universal Credit, Pension Credit, and others. Specific criteria can vary, so please contact us for the latest guidelines and more information.
The time required for the ECO4 grant application process can vary, but typically, it takes one to seven weeks from applying for the grant to the completion of the external wall insulation.
While the grant covers a significant portion of the costs for installing wall insulation, it’s important to note that additional costs like labour, scaffolding and permits may not be included.
Yes, landlords are eligible to apply for ECO4 External Wall Insulation grants, particularly if they meet the specified criteria and possess the required permissions.
Yes, specific building requirements for ECO4 external wall insulation exist. The insulation layer’s thickness and other specifications are based on factors such as the chosen insulation material, thermal performance standards, structural integrity, and compliance with building regulations.
Homeowners are required to engage contractors accredited under the ECO scheme. Opting for a certified professional is recommended to guarantee adherence to program standards. At Stellar Insulation Ltd we are accredited and have many years of experience in installing home energy saving solutions.
When installed and maintained appropriately, external wall insulation can be expected to have a lifespan of 25 years or more, thereby providing enduring benefits in terms of energy efficiency.
Opting for external wall insulation proves advantageous for your home. Beyond the long-term energy cost savings, it can also enhance the value of your property.
The thickness of external wall insulation ranges from 50mm to 200mm. The chosen insulation material, the building’s thermal performance requirements, structural considerations, and compliance with building regulations determine the specific thickness of the wall insulation layer.
To qualify for an external wall insulation grant, your home must have an EPC (Energy Performance Certificate) rating of F or G. These ratings signify a lower level of energy efficiency in your home, serving as a qualifying criterion for the grant.
Certainly, external wall insulation grants are available for individuals receiving a pension. Those who meet the grant criteria will qualify for this assistance.