Air-to-air heat pumps in Sunbury-on-Thames
The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first. Ask at your Sunbury-on-Thames survey whether the Boiler Upgrade Scheme grant could apply to your home.
We size every heat pump in Sunbury-on-Thames for a cold winter day, then check the cooling side is right for summer. We cover Sunbury-on-Thames as part of Surrey, roughly 8 miles from Woking. Postcode districts we cover here include TW16 and TW17.
Prices in Sunbury-on-Thames
For Sunbury-on-Thames, expect roughly £3,595 to £13,945 for 2–5 rooms, VAT included, adjusted for typical South East England rates. South East England is one of the dearer parts of the UK for trades, which shows in the range. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. As an example, the Small home option (three or four rooms heated and cooled) would typically be £5,445–£9,095 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.
Sunbury-on-Thames 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
A survey in Sunbury-on-Thames usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. 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.
What is included
Included as standard in Sunbury-on-Thames:
- Indoor units sized for winter heating, not just cooling
- Pressure test, vacuum and commissioning
- Outdoor unit placed for airflow and noise compliance
- Advice on running settings and tariffs
- Free survey with a room-by-room heat-loss calculation
Nearby
Close to Sunbury-on-Thames, our coverage also includes Walton-on-Thames (1 mile), Hanworth (2 miles) and Ashford, Surrey (3 miles). See all services in Sunbury-on-Thames or air-to-air heat pumps across Surrey.

