ECO4 isn't one scheme — it's a funnel with five feeder routes. Most applications that fail do so because the household thought they didn't qualify through any route. They almost always qualify through at least one.
Five routes into ECO4
- Benefits route: someone in the household receives a qualifying income benefit.
- LA Flex: local authority flexibility. Councils can add their own criteria.
- Child benefit: household child benefit under specific income thresholds.
- Low EPC + lower income: the "Minimum Requirement" route for D/E/F/G-rated homes.
- In-fill rules: one qualifying home can anchor eligibility for its street (park homes, flats).
LA Flex (the flexible route)
Every council publishes its own Statement of Intent. Some will qualify households with a specific medical condition; some will qualify based on fuel-poverty indicators. Always check your council's current SOI, not last year's.
Two common misreads
1. "I'm above the income threshold." The threshold isn't your salary — it's household income after benefits. Run the math properly.
2. "I'm a tenant, so I can't apply." Tenants can. The landlord needs to consent, but the application is the tenant's to start.