Air source heat pump installers in Bath

Bath is one of the UK's most heavily protected built environments — the entire central area is a UNESCO World Heritage Site, with Georgian terraces and crescents that fall under both conservation-area planning rules and (in many cases) listed-building consent. This makes Bath the most planning-intensive heat pump market in our dataset: roughly 70% of central Bath installations require a separate planning application for the outdoor unit, with approval times averaging 10–14 weeks and refusal rates around 15% on first submission.

Bath's Georgian and early-Victorian housing stock has solid stone walls (typically Bath stone), generous ceiling heights, and original radiator layouts designed for solid-fuel heat at high flow temperatures. Heat-loss calculations on these homes routinely come in 30–50% above a comparable 1930s English semi, requiring 11–14 kW heat pumps and substantial radiator upgrades (typically 4–6 rooms). Installed costs in central Bath run £12,500–£15,500 before grant — meaningfully above the UK average due to access constraints, scaffolding requirements for crescents, and listed-building specifications.

Outside the conservation area, Bath's outer suburbs (Larkhall, Combe Down, Twerton, Oldfield Park) have more standard 1900s–1950s terraced and semi-detached stock that retrofits much more easily — installs here run £10,500–£12,800 before the £7,500 BUS grant. Bath & North East Somerset Council runs the Energy at Home advice service and has occasionally stacked supplementary grants on top of BUS for low-income households in fuel-poor wards. The MCS-certified installer market in the BA postcode area is moderate (~30 firms within 25 miles), with several specialising in listed-building installations.