Warm Homes Plan: What It Means for Your Energy Bills

The Warm Homes Plan will redirect £1.8 billion of heat pump funding from individual household grants to council-led area schemes by 2025. That shift, first outlined by the Energy Saving Trust in a briefing for local authorities, could cut installation costs for some homeowners by up to £2,000, but it also risks leaving others stranded without a grant for years.

The plan, as reported by the Energy Saving Trust, replaces the current Boiler Upgrade Scheme, which gives individual households £7,500 off a heat pump, with a model where councils identify streets or estates for bulk installations. The logic is simple: scale drives cost down. But the execution is anything but.

Who qualifies, and who doesn’t

Under the new plan, eligibility depends entirely on where you live. Councils will bid for funding to cover specific postcodes, targeting homes with the lowest EPC ratings, typically bands D through G. If your street is chosen, you could get a heat pump installed for as little as £500 after the council subsidy, compared to the current £2,500–£4,000 typical cost after the Boiler Upgrade Scheme grant.

But here’s the catch: if your council doesn’t bid, or bids and fails, you’re left with nothing. The Energy Saving Trust estimates that only 40% of English councils will participate in the first wave, meaning 60% of households will have no access to the new scheme until at least 2027. Those households can still apply for the existing Boiler Upgrade Scheme, but its budget is being cut by 30% from April 2025 to fund the new plan.

What it costs a typical 3-bed semi

For a typical 3-bed semi using 12,000 kWh of gas per year, a heat pump under the current scheme costs about £2,500 net after the £7,500 grant. Under the Warm Homes Plan, the council-led bulk installation could bring that down to £500–£1,000, but only if your area is selected. Ofgem figures show the average gas boiler runs at £1,200 a year in fuel costs; a heat pump at current electricity prices (27p/kWh) costs roughly £900, saving £300 annually. Over 10 years, that’s £3,000, enough to pay back the installation even without a grant.

The Energy Saving Trust’s modelling assumes the council-led approach will reduce installation costs by 25% through bulk purchasing and standardised fitting. But those savings depend on councils having the staff and expertise to run the schemes, something many lack. The Local Government Association warned last month that 60% of councils have no dedicated retrofit officer.

EPC impact and real-world action

A heat pump alone can lift an EPC rating from band D to band C, saving a typical household £200–£300 a year on energy bills. Combined with loft insulation (costing £300–£500) and cavity wall insulation (£1,000–£1,500), a full retrofit under the Warm Homes Plan could push a home from band E to band C, a two-band jump that adds an estimated 5% to property value, according to Nationwide data.

But the plan’s success hinges on councils acting fast. Homeowners in pilot areas, initially in Greater Manchester, the West Midlands, and parts of Yorkshire, can expect letters from their council by March 2025 inviting them to register interest. Those outside pilot zones should check their council’s website for retrofit plans and consider applying for the Boiler Upgrade Scheme before its budget is cut.

What this misses is the gap between policy and pavement. The Warm Homes Plan is well-intentioned, it tries to solve the coordination problem that has dogged UK heat pump uptake for a decade. But by shifting control to councils without giving them the staff or tools, it risks creating a postcode lottery where some households get cheap heat and others get nothing. The Energy Saving Trust’s briefing is clear: this is a pilot, not a panacea.

Households on standard variable tariffs can check their council’s Warm Homes Plan status at gov.uk from 4 November. Eligibility for the first wave closes on 31 March 2025. If your council isn’t listed, apply for the Boiler Upgrade Scheme before its budget is cut in April 2025.