Complete Guide to ECO4 Funding Scheme
The ECO4 (Energy Company Obligation Phase 4) funding scheme is the UK government's flagship initiative providing free boiler replacements and energy efficiency improvements to eligible households. With a £4 billion budget running until 31 December 2026, ECO4 helps low-income and vulnerable families reduce energy bills — eligible homes could save hundreds of pounds a year depending on your property, heating system and usage.
Everything You Need to Know About ECO4
Explore our comprehensive guides covering all aspects of the ECO4 funding scheme
Complete guide to ECO4 eligibility criteria including benefits, income limits, and property requirements.
Step-by-step application process for ECO4 grants. Quick 60-second eligibility check.
Detailed breakdown of ECO4 income thresholds and household earnings eligibility for 2026.
How UK pensioners can get free boiler replacement under ECO4. Priority support and dedicated helpline.
Local Authority Flexibility scheme for households that don't meet standard ECO4 criteria.
What to expect during ECO4 boiler installation from survey through completion.
Calculate your potential savings with ECO4. See how much you could save annually on energy bills.
Complete list of available ECO4 grants including boilers, insulation, and renewable heating systems.
Full list of qualifying benefits for ECO4 including Universal Credit, Pension Credit, and more.
Compare ECO4 against Boiler Upgrade Scheme. Understand which program suits your needs best.
Check your property's EPC rating instantly. Understand if your home qualifies for ECO4 scheme.
Understanding the ECO4 Scheme
The ECO4 (Energy Company Obligation Phase 4) scheme is a UK government energy efficiency program regulated by Ofgem, the energy regulator. Running from April 2022 to 31 December 2026, ECO4 mandates that large energy suppliers fund energy-saving measures for low-income and vulnerable households across England, Scotland, and Wales.
Official Government Resources
Key Benefits of ECO4 Funding
- 100% Free Installation: No upfront costs or hidden fees. The scheme covers assessment, installation, and certification.
- A-Rated Equipment: All boilers installed must achieve minimum 90% energy efficiency ratings, certified by Gas Safe registered engineers.
- Energy savings potential: A more efficient boiler and insulation can lower heating bills; savings depend on your home, tariff and how you use your heating.
- Increased Property Value: Improved EPC ratings (Energy Performance Certificates) can increase property values by 5-10% on average.
- Environmental Impact: Reduce your carbon footprint by an average of 2.5 tonnes of CO₂ emissions annually, contributing to UK climate goals.
Quick Reference: ECO4 Eligibility Checklist
Tip from the Free Boiler Upgrade team
"Don't assume you're ineligible! Many households initially think they won't qualify. The LA Flex route opens eligibility to low-income households even without qualifying benefits. Always complete the eligibility check — it takes about 60 seconds."
Check Your ECO4 Eligibility
Complete our quick eligibility checker to see if you qualify for free boiler replacement and energy efficiency improvements. Takes just 60 seconds.