Under the ECO4 scheme, major energy suppliers are legally obligated to fund energy-saving improvements for eligible homes. These upgrades can include:
- Free boiler replacement
- Cavity wall insulation
- Loft insulation
- Solid wall insulation
- First-time central heating
- Air source heat pumps
- Smart heating controls
Key Goals of the ECO4 Scheme
The ECO4 grant is focused on improving the energy performance of homes rated E, F, or G on their EPC (Energy Performance Certificate). It supports the UK’s net-zero carbon emissions target by 2050 while helping vulnerable households cut heating costs and live more comfortably.
Who is Eligible for the ECO4 Grant Scheme?
To qualify for support under the ECO4 scheme, you generally need to meet the following conditions:
✅ Property Criteria
- Your home must have a low EPC rating (E, F, or G).
- You must either own your home or rent privately (with landlord permission).
✅ Household Income or Benefits
You may be eligible if you or someone in your household receives one or more of the following:
- Universal Credit
- Pension Credit (Guarantee or Savings)
- Income-based Jobseeker’s Allowance (JSA)
- Income Support
- Housing Benefit
- Working Tax Credit
- Child Tax Credit
- Employment and Support Allowance (ESA)
Good to Know: The LA Flex scheme (Local Authority Flexible Eligibility) may extend eligibility to low-income households not receiving benefits. Contact your local council to see if you qualify under this route.
What Upgrades Are Available Through ECO4?
The ECO4 scheme offers a range of fully funded or heavily discounted energy-saving improvements, including:
???? Heating Improvements
- Boiler upgrades or replacements
- First-time central heating systems
- Smart thermostats and heating controls
- Air source heat pumps
???? Insulation Measures
- Loft insulation
- Cavity wall insulation
- Solid wall insulation (internal or external)
- Floor insulation
???? Renewable Technologies
- Solar panels (PV systems) in some cases
- Ventilation upgrades to reduce damp and mould
Benefits of the ECO4 Scheme
Participating in the ECO4 grant scheme offers several financial and environmental advantages:
- ???? Lower energy bills (save up to £1,600/year depending on upgrades)
- ???? Increased property value
- ❄️ Improved comfort and home warmth
- ???? Reduced carbon footprint
- ⚡ Better energy efficiency rating (EPC)
How to Apply for the ECO4 Grant Scheme in 2025
The application process is simple:
- Check your eligibility using an online form or by contacting an ECO4-approved installer.
- Free home assessment: An assessor will inspect your property to determine which improvements are suitable.
- Installation: If approved, certified installers will complete the energy upgrades at no cost or a small contribution.
- Ongoing support: Many providers offer aftercare, servicing, and warranties.
Tip: Always use a government-registered installer or provider to avoid scams.
FAQs About the ECO4 Grant Scheme
???? Is the ECO4 scheme really free?
Yes — if you're eligible, most or all of the costs are covered by energy suppliers under their legal obligations.
???? Can landlords apply?
Landlords can benefit from ECO4 for rental properties if the tenant qualifies and the property has a low EPC.
???? Can I apply if I already received help under ECO3?
Yes, but only if your home still has a low EPC rating and you meet the updated eligibility criteria.
Why You Should Apply Now
The ECO4 grant scheme is time-limited and funded only until March 2026, but demand is rising fast due to high energy bills and the UK's push for decarbonization.
If you think you’re eligible, don’t wait — the earlier you apply, the sooner you’ll start saving on energy and improving your living conditions.
Final Thoughts
The ECO4 Grant Scheme is a vital lifeline for households struggling with high energy costs and poor insulation. With generous government support, you could qualify for free home energy upgrades that save money and help the planet.