ECO4 Boiler Grant: Understanding Eligibility and Application Process

ECO4 is the fourth version of the UK Government’s Energy Company Obligation. It started in August 2022 and will run until third month of 2026. Generally, the ECO4 grant aims to provide free energy-saving measures for low income households to improve the efficiency and heating of their home.

What does ECO and ECO4 mean?

ECO means the Energy Company Obligation, of which there have been four parts. It is a policy that aims to make homes warmer and households’ carbon emissions lower, as well as making large energy companies accountable for supporting low income homeowners or private tenants in the UK.

In other words, ECO4 grant is all about energy saving while offering grants for single mothers, fathers, people with disabilities, and families who struggle financially in general.

How ECO works

The Energy Company Obligation (ECO) requires medium and large energy suppliers to support the installation of energy-saving improvements in British residences. Each obligated supplier is allocated a target based on its portion of the domestic energy market in the UK.

These suppliers partner with certified installers such as grantboilers to implement specific energy efficiency measures in homes, such as insulating lofts, floors walls, and upgrading heating systems.


What’s Covered in the ECO4 Scheme?

The ECO4 grant scheme covers a range of energy saving solutions that can be applied to existing homes, such as:


Installing insulation is the most common benefit of the ECO4 Scheme, helping homes save up to £1 800 a year—”energysavingtrust”.

Cavity wall, solid wall, room in a roof, and loft insulation are some of the insulation measures available through ECO4, but this depends on low income homeowners circumstances.

Green heating systems

The ECO4 scheme also contains the installation of ECO-friendly heating systems, including air-source heat pumps and biomass boilers. These advanced heating systems are capable of replacing outdated and inefficient boilers, resulting in a significant reduction of up to 25% in energy bills for households.


How much funding is available to homeowners?

The amount of funding available through the ECO4 scheme varies depending on the type of upgrade you require, but for eligible homeowners, the ECO4 grant covers 100% of the cost of installation.


What benefits are covered in the ECO4 grant?

  • Lower energy bills
  • Reduce Carbon emissions
  • Increase property value Reduce maintenance
  • Improved comfort
  • Cost effective


What types of insulation will be funded by ECO4?

Energy company obligation is intended to help as many households as possible by giving out grants for home improvements. So, the main focus will be on installing lower-cost insulation measures such as loft wall insulation and cavity wall insulation.

There will still be opportunities for other types of home insulation where relevant under the ECO4 scheme.

Potential insulation grants that could be covered by an ECO4 include:

  • External wall insulation
  • Underfloor insulation
  • Cavity wall insulation
  • Loft Insulation
  • Solid wall insulation


Who is eligible for the ECO4 scheme?

The ECO4 scheme offers a wide range of energy efficiency measures, and these are allocated based on specific eligibility criteria. If you receive qualifying benefits and are either a homeowner or a private tenant, you stand a good chance of securing support from energy suppliers through this scheme, which has been in effect since April of the previous year.


To determine your eligibility for the ECO4 Scheme, a freeboilergrants check is conducted to verify your benefits status. In certain situations, you might be asked to present a Child Benefit Award Notice or make a self-declaration about your household income. It’s essential that you are low income homeowner in the UK.


  • Income-based Job seeker’s Allowance (JSA)
  • Income-related Employment & Support Allowance (ESA)
  • Income Support Allowance (ISA)
  • Working Tax Credit (WTC)
  • Child tax credit (CTC)
  • Universal Credit (UC)
  • Pension savings Credit
  • Pension Guarantee Credit
  • Child benefit
  • Housing benefit


How do I apply for the home energy grant?

To apply for the ECO4 grant, you must first check if you’re eligible. This will determine if you can use the grant towards an upgrade. If you qualify, you’ll be directed straight to our experts, who will arrange to send out a survey free of charge to your home. We can then check your requirements and arrange an installation date.

Firstly, check your eligibility: You can check your eligibility here to confirm whether you qualify for the ECO 4 boiler scheme.
Find an ECO4 installer: Locate qualified installers in your area who are certified to work under your chosen scheme. Additionally, you can choose us to complete all the paperwork on your behalf till the installation of the boiler-free grant.
Home Energy Assessment: Our energy surveyor will visit your home to evaluate your boiler and energy efficiency. This assessment is crucial for determining your eligibility and grant amount.
Submit an application: We will guide you through the application process, submitting the necessary paperwork to the energy supplier.
Get approved: Upon approval, we will schedule a date for the new boiler installation, and you’ll begin enjoying the benefits of your new, eco-friendly heating solution.


The ECO4 grant presents a valuable opportunity for green environmental development. Through its support, communities can implement ECO-friendly initiatives, and promote renewable energy sources, and reduce climate change impacts. The grant focuses on innovation and collaboration, empowering homeowners or private tenants to create positive environmental change. By investing in projects that prioritise ecological balance and economic growth, the ECO4 scheme lays a foundation for a greener future. With continued dedication and strategic utilisation of these resources, we can rely on the way for a more flexible and environmentally conscious society. Together, we can harness the power of the ECO4 scheme to build a brighter, more sustainable tomorrow.


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