Air-to-air heat pumps in Hemel Hempstead
The East of England is one of the sunniest and driest parts of the UK, which makes glazed rooms and lofts hard to keep cool. Ask at your Hemel Hempstead survey whether the Boiler Upgrade Scheme grant could apply to your home.
Homes in Hemel Hempstead on electric, oil or LPG heating are the ones most likely to benefit from an air-to-air heat pump. Hemel Hempstead sits around 7 miles from Watford, inside our Hertfordshire area. That includes the HP3 postcode district.
Prices in Hemel Hempstead
Our East of England guide price for air-to-air heat pumps is £3,295–£12,795 for 2–5 rooms, VAT included. The East of England is one of the dearer parts of the UK for trades, which shows in the range. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. On our East of England figures, the Small home option (three or four rooms heated and cooled) is about £4,995–£8,345.
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.
Hemel Hempstead 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 Hemel Hempstead 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. 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 Hemel Hempstead covers:
- Outdoor unit placed for airflow and noise compliance
- Pressure test, vacuum and commissioning
- Grant eligibility check for the Boiler Upgrade Scheme
- Free survey with a room-by-room heat-loss calculation
- Indoor units sized for winter heating, not just cooling
Nearby
Neighbouring places we cover include Berkhamsted (5 miles), St Albans (5 miles) and North Watford (6 miles). See all services in Hemel Hempstead or air-to-air heat pumps across Hertfordshire.

