Air-to-air heat pumps in Dorchester
Homes in Dorchester on electric, oil or LPG heating are the ones most likely to benefit from an air-to-air heat pump. In the South West, a system that heats well through damp winters is often as valuable as summer cooling.
We size every heat pump in Dorchester for a cold winter day, then check the cooling side is right for summer. Our Dorset coverage takes in Dorchester, about 24 miles from Bournemouth. That includes the DT1 postcode district.
Prices in Dorchester
Air-to-air heat pumps in Dorchester typically come in at £2,950–£11,450 for 2–5 rooms including VAT, based on South West England rates. That is close to the UK middle for this kind of work. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. For reference, the Small home option in Dorchester (three or four rooms heated and cooled) usually comes to about £4,450–£7,450.
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
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
If your home in Dorchester is replacing fossil fuel or electric heating, and no gas, oil or LPG boiler stays in use, an MCS-certified air-to-air heat pump may qualify for the £2,500 Boiler Upgrade Scheme grant, which the MCS-certified installer claims and deducts from the price.
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. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
What a job in Dorchester covers:
- Indoor units sized for winter heating, not just cooling
- Free survey with a room-by-room heat-loss calculation
- Grant eligibility check for the Boiler Upgrade Scheme
- Pressure test, vacuum and commissioning
- Outdoor unit placed for airflow and noise compliance
Nearby
Nearby, we also cover Weymouth (7 miles), Wareham (14 miles) and Bridport (14 miles). See all services in Dorchester or air-to-air heat pumps across Dorset.

