Free Boiler Grants in Bolton (BL1–BL8)ECO4 Eligibility 2026

Bolton homeowners (EPC band D–G) and private tenants (EPC band E–G, with landlord consent) whose household either claims a qualifying benefit (Universal Credit, Pension Credit, PIP, ESA, Income Support, Working Tax Credit or Child Tax Credit) or has gross income under £31,000 via Bolton Council's LA Flex referral. A cold-sensitive health condition can substitute for the income test.

Yes. Bolton Council operates ECO4 Flex referrals via the council's housing energy team. The standard £31,000 gross income threshold is supplemented by cold-home vulnerability indicators across the four Ofgem proxy routes.

Cadent Gas's North West network operates the gas mains across all BL1–BL8 postcodes — the same GDN that covers Manchester and Liverpool. ECO4 covers the new boiler, internal pipework, meter installation and removal of the old system at no cost. The connection from your meter back to the Cadent main is separate — Cadent publishes an indicative pricing tool for households needing a new connection.

Bolton's cotton-belt terraces — Halliwell, Daubhill, Tonge Moor, Great Lever and Astley Bridge — are typically solid-wall stone or red brick with limited cavity work to the rear. The strongest scoring measure is an A-rated condensing combi replacement plus loft top-up to 270mm. External or internal solid-wall insulation is in scope as a phase-2 measure but requires a PAS 2035 fabric assessment, and lime-mortar repointing is not ECO4-funded — it's typically a separate non-ECO visit.

Often yes — this is First-Time Central Heating (FTCH), one of the highest-scoring ECO4 measures because moving from Economy 7 storage heaters to a gas combi typically jumps the EPC two bands. The inter-war and 1960s Bolton Council estates at Farnworth, Westhoughton, Horwich and parts of Smithills were built with cavity walls and are mostly connected to Cadent's mains.

Sometimes, but with extra steps. Converted mill flats are typically EPC band C or D (the conversion tends to bring fabric standards up substantially) and may fall outside ECO4 scope. Where they sit at band D or worse with a non-condensing boiler still on the wall, an A-rated boiler swap is in scope. Listed-building consent often applies because of Bolton's many designated former mill buildings.

ECO4 closes 31 December 2026. After that, the £15 billion Warm Homes Plan takes over from April 2027 — funded by public investment rather than energy-bill levies, and delivered by the new Warm Homes Agency rather than Ofgem (gov.uk Warm Homes Plan, updated 18 March 2026). You may have seen the successor scheme called 'ECO5' online — that name is not used by government and no scheme by that title exists. For Bolton households, the practical effect is straightforward: if you apply under ECO4 before the 31 December 2026 close, the install is funded under ECO4 even if the engineer's visit happens in early 2027; if you start a fresh application after 1 January 2027, you'll be routed through the Warm Homes Local Grant (WHLG), the Warm Homes Social Housing Fund, or the £7,500 Boiler Upgrade Scheme depending on your tenure and property. Your local council's energy team continues to handle the referral throughout the transition.