Complete Guide to ECO4 Scheme: Free Home Insulation & Boiler Grants 2025
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Complete Guide to ECO4 Scheme: Free Home Insulation & Boiler Grants 2025

Energy Efficiency Team5 min read

What is the ECO4 Scheme?

The Energy Company Obligation (ECO4) scheme is a government initiative that requires larger energy suppliers to help households reduce their energy consumption and carbon emissions. Running from April 2022 to March 2026, ECO4 focuses on supporting low-income and vulnerable households across Great Britain.

Who Qualifies for ECO4 Grants?

The ECO4 scheme targets households that meet specific criteria. You may qualify if you:

  • Receive certain benefits such as Universal Credit, Pension Credit, or Child Tax Credits
  • Have a household income below £31,000 per year
  • Live in a property with an Energy Performance Certificate (EPC) rating of D, E, F, or G
  • Are a homeowner or private tenant (with landlord permission)

What Energy Upgrades Are Covered?

The ECO4 scheme covers a comprehensive range of energy efficiency improvements:

Insulation Upgrades

  • Loft Insulation: Reduces heat loss through your roof, potentially saving £355 per year on energy bills
  • Cavity Wall Insulation: Fills the gap between external and internal walls, saving up to £395 annually
  • Solid Wall Insulation: For homes without cavity walls, this can save up to £475 per year
  • Underfloor Insulation: Prevents heat loss through ground floors

Heating System Upgrades

  • Boiler Replacement: Modern A-rated condensing boilers can reduce heating costs by up to 30%
  • Air Source Heat Pumps: Renewable heating systems that extract heat from outside air
  • Solar Panels: Generate free electricity and reduce reliance on the grid
  • Storage Heaters: Energy-efficient electric heating solutions

How Much Can You Save?

The savings from ECO4 upgrades can be substantial. A typical household receiving multiple measures could save:

  • £400-600 per year on energy bills
  • Up to 2 tonnes of CO2 emissions annually
  • Improved home comfort with more consistent temperatures
  • Increased property value with better EPC ratings

The Application Process

Applying for ECO4 funding is straightforward:

  1. Check Eligibility: Use our online eligibility checker to see if you qualify
  2. Home Survey: A qualified assessor will visit your property to identify suitable measures
  3. Approval: Your application is reviewed and approved by the energy supplier
  4. Installation: Certified installers complete the work at no cost to you
  5. Certification: You receive all necessary certificates and guarantees

Important Considerations

Before applying, keep these points in mind:

  • The scheme is completely free for eligible households - beware of companies charging fees
  • All work must be carried out by TrustMark registered installers
  • You'll receive guarantees and warranties for all installed measures
  • The scheme aims to improve your EPC rating by at least 2 bands where possible

Why Act Now?

With energy prices remaining high and the ECO4 scheme running until 2026, now is the perfect time to apply. The combination of free upgrades, reduced energy bills, and improved home comfort makes this an opportunity not to be missed.

Don't let this chance pass you by. Check your eligibility today and start your journey towards a warmer, more energy-efficient home.

Ready to Start Saving on Energy Bills?

Check if you qualify for free energy efficiency upgrades through the ECO4 scheme. It takes less than 2 minutes.