Energy bills for a typical UK household sit at £1,568 a year under the October price cap, 60% higher than three years ago. Five energy experts have now published the specific steps they take in their own homes, as reported by The Conversation. Their collective advice offers a reality check for homeowners drowning in conflicting product claims.
What the experts actually do, not what they sell
The five experts, a mix of academics and practitioners, list actions that sound almost boring. They turn down thermostats to 18°C in living areas. They bleed radiators every autumn. They seal skirting boards with silicone. One uses a heated blanket instead of heating the bedroom. Another installed a smart thermostat that learns when the house is empty. None of them recommend a heat pump as a first step. The pattern is clear: cheap, repeatable actions come before expensive capital projects. Ofgem data confirms that the average household wastes £200 a year on heat lost through draughts alone.
The gap between expert advice and typical behaviour
Yet the Energy Saving Trust estimates that only 40% of UK homes have even basic draught-proofing. The catch is that most advice arrives via product marketing. A boiler company will recommend a new boiler. A solar installer will recommend panels. The experts in this piece do the opposite: they start with the building fabric. Loft insulation costs around £500 for a typical 3-bed semi and pays back in two years. Draught-proofing a whole house costs £200 and pays back in one winter. These numbers come from the Energy Saving Trust’s own calculator, not from a sales brochure.
What this means for your EPC and your grant eligibility
An Energy Performance Certificate rates homes from A to G. Over half of UK homes are D or below. The government’s ECO4 scheme funds insulation and heating upgrades for low-income households, but it requires a minimum EPC band before it can fund a heat pump. The experts’ approach, fix the fabric first, aligns exactly with that logic. A home that loses heat through a cold loft will not benefit from a heat pump. The Boiler Upgrade Scheme offers £7,500 toward a heat pump, but only after the building is ready. The experts interviewed by The Conversation implicitly agree: do the cheap stuff first, then the big stuff.
One number that changes the calculation
One expert reports that their smart thermostat cut their heating bill by 22%. That figure aligns with a 2023 study by the Department for Energy Security and Net Zero, which found that smart heating controls reduce consumption by 20-25% in homes with gas boilers. The device costs £150 to £300 installed. Payback: within two years. That is faster than any solar panel or heat pump. Yet fewer than one in five UK homes has a smart thermostat, according to the same DESNZ data.
The lesson for UK homeowners is straightforward. Read the expert advice, then take one action this month. Bleed your radiators. Check your loft insulation depth. Buy a smart thermostat. Apply for ECO4 if you qualify. The big kit can wait. The fabric cannot.
Frequently Asked Questions
No. Experts and government schemes both recommend fixing the building fabric first, insulation and draught-proofing, before installing a heat pump. A heat pump on a draughty home will cost more to run and may not meet grant eligibility criteria.
Turning your thermostat down by 1°C saves around £80 a year, according to the Energy Saving Trust. Combined with basic draught-proofing (£200) and bleeding radiators (free), you can cut your bill by 10-15% without any major purchase.
