Cost category
Energy & Insulation Costs UK
UK costs for boilers, heat pumps, solar panels and home insulation.
Compare heating and energy-efficiency upgrades, including gross installation costs before scheme-specific grant assumptions. Every guide links back to dated source records and, where appropriate, a live calculator or regional planning example.
Energy & Insulation guides
Cost guide
New boiler
Budget for a UK boiler replacement including the appliance, installation and common additional work.
£2,500–£5,500View guide →Cost guideAir source heat pump
Understand the main cost components of an air source heat pump installation in the UK.
£8,000–£16,000View guide →Cost guideSolar panels
Typical UK solar PV costs including panels, inverter, mounting, installation and optional battery storage.
£5,000–£9,000View guide →Cost guideHome insulation
UK loft and cavity wall insulation costs by property type, material and insulated area.
£650–£1,200 loft / £30–£65 per m² cavity foamView guide →Cost guideCavity wall insulation
Typical UK cavity wall insulation costs by property type and wall area.
£950–£4,600 by property typeView guide →Cost guideExternal wall insulation
UK external wall insulation costs per square metre and by property type.
£150–£200 per m² installedView guide →