Free Boiler Grants in Milton Keynes (MK1–MK19)ECO4 Eligibility 2026

MK homeowners and private tenants whose home is EPC band D–G and 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 Milton Keynes City Council's LA Flex Warm Homes Local Grant route. A cold-sensitive health condition can substitute for the income test.

Yes. Boiler-replacement and First-Time Central Heating are routine on Milton Keynes' 1970s timber-frame and concrete-panel grid-square stock. What requires extra planning is anything that touches the wall fabric — cavity fill, internal wall insulation, external render — because the non-standard construction needs a full PAS 2035 retrofit assessment first. For a like-for-like boiler swap the assessment is lighter and the install typically completes in a single day.

Cadent Gas's East of England network operates the gas mains across all MK postcodes. ECO4 covers the new boiler, internal pipework, the meter installation and removal of the old system at no cost. A new connection from your meter back to the SGN main is separate — Cadent publishes an indicative pricing tool that estimates the cost based on distance from the main and excavation method.

The benefit and income tests are identical, but the EPC profile is different. Bletchley and Wolverton's pre-new-town terraces are typically EPC band D, E or F — solid-wall or unfilled cavity, often with non-condensing combis still in place — which makes them strong scorers for a combined boiler-replacement and insulation package. The post-1990 grid-square stock in Westcroft, Furzton and Tattenhoe is mostly EPC C or higher and falls outside ECO4 scope.

Cavity-wall and loft insulation (where the fabric assessment supports it), First-Time Central Heating for properties moving off Economy 7 storage heaters, solid-wall insulation on the pre-new-town terraces, smart heating controls, and in some cases an air-source heat pump as an alternative to a gas combi — typically scoped during the PAS 2035 whole-house assessment that precedes any work.

From eligibility check to install completion is typically 4 to 6 weeks for a straightforward like-for-like boiler swap on a Bletchley terrace or a 1970s grid-square house, including the EPC assessment, benefits or LA Flex check, surveyor visit and the install itself. Whole-house retrofits combining boiler + insulation on a Netherfield-style timber-frame property take longer (6 to 10 weeks) because the PAS 2035 fabric assessment is more involved.

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 Milton Keynes 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.