Air-to-air heat pumps in Westminster
The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights. Ask at your Westminster survey whether the Boiler Upgrade Scheme grant could apply to your home.
Homes in Westminster on electric, oil or LPG heating are the ones most likely to benefit from an air-to-air heat pump. Westminster sits within our London area. Homes in SW1A, SW1E, SW1H, SW1P, SW1V and SW1W are all within our coverage.
Prices in Westminster
In London, our guide range for air-to-air heat pumps is £3,895–£15,095 for 2–5 rooms, including VAT. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Westminster up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. As an example, the Small home option (three or four rooms heated and cooled) would typically be £5,845–£9,845 here.
Two rooms
Living room and main bedroom on one outdoor unit.
Small home
Three or four rooms heated and cooled.
Whole home
Five or more rooms, sized to replace the existing heating.
Prices are shown before any Boiler Upgrade Scheme grant. The £2,500 air-to-air grant applies only to eligible homes in England and Wales, using an MCS-certified heat pump installed by an MCS-certified installer, who applies for the grant and deducts it from the price. We confirm eligibility, and which installer applies, before you commit.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
Westminster is in the Boiler Upgrade Scheme area, so eligible homes replacing oil, gas, LPG or electric heating may be able to get £2,500 off an air-to-air heat pump, as long as no fossil-fuel boiler stays in use. An MCS-certified installer must claim it; we confirm eligibility, and which installer applies, before you commit.
The survey
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. On a survey in Westminster the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Included with air-to-air heat pumps in Westminster:
- Free survey with a room-by-room heat-loss calculation
- Indoor units sized for winter heating, not just cooling
- Outdoor unit placed for airflow and noise compliance
- Grant eligibility check for the Boiler Upgrade Scheme
- Advice on running settings and tariffs
Nearby
We also cover Chelsea (2 miles), Battersea (2 miles) and Brixton (3 miles). See all services in Westminster or air-to-air heat pumps across London.

