Heat pump installers near you

A modern air-source heat pump is typically 3–4× more efficient than a gas boiler — it produces 3–4 kWh of heat for every 1 kWh of electricity consumed. This is measured as the Seasonal Coefficient of Performance (SCOP). Gas boilers are around 90% efficient, so heat pumps use roughly one-third of the primary energy of gas heating.

In most cases yes, though they may need to be larger. Heat pumps operate at lower water temperatures (35–50°C) than gas boilers (65–75°C), so existing small radiators may not provide enough heat output. Your installer will carry out a heat loss calculation and specify whether radiator upgrades are needed.

Modern ASHPs produce around 40–50 dB at 1 metre — similar to a quiet conversation or a refrigerator. Permitted Development rules require the unit to be at least 1 metre from the property boundary and not on a wall or roof facing a highway. Most installations are quiet enough to meet these requirements without issue.

It's more complicated for flats — the external unit needs outdoor space, and neighbours' consent may be needed for shared buildings. Some installers offer split systems that can work in flats with balconies or roof space. Air-to-air systems (which heat via indoor units rather than radiators) are easier to install in flats but don't qualify for the Boiler Upgrade Scheme.