West Sussex · Heat pump installation
Heat pump installation in Crawley, West Sussex
Our engineers work in Crawley on heat pump installation. A look at the job first, a fixed-price quote and written records at the end.
- Wanting to stop using oil, LPG or gas for heating
- Ageing boilers that will need replacing
- Questions about the Boiler Upgrade Scheme
The process
The visit goes in the diary at a time that works for you, and we let you know if plans need to move. On arrival, the engineer compares the job with the survey, your pictures or the details you gave us. Anything unexpected is raised with you before we go further. After that, it takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. A few photos of the room, the outside wall and the fuse board help us plan a job in Crawley.
- We start with your plans and the property.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- We recommend air-to-water or air-to-air and check the grant position.
- The system is installed and connected to the controls.
- After commissioning, you get the MCS certificate and a handover.
Before we arrive
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Clear access to the fuse board
- Keep pets out of the rooms we’re working in
Ask for a quote
Our prices page gives typical ranges, but your quote is based on your job, because every property is different. After a look at the job, by photos or a survey, the price is fixed. To get going, ring 07833 053749 or email us.
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Air source heat pumps for homes and businesses in Crawley
As an MCS certified installer, we fit air source heat pumps for homes in Crawley and the rest of West Sussex. Air-to-water systems feed your radiators or underfloor heating and hot water cylinder, while air-to-air systems heat rooms directly through indoor units and can cool them too. We help you work out which suits your home. If the problem is radiators that may be too small for a heat pump and checking eligibility for a heat pump grant, we can help.
Homes in Crawley range from older houses to new builds, and that matters for a heat pump. Every design starts with a room-by-room heat loss calculation, so the system is sized for your home and not guessed.
Refrigerant work is written up in the F-Gas records: the work carried out, the refrigerant involved and the quantities. File them with the system’s paperwork, ready for the next service or a warranty query.
- Where
- Crawley (RH10, RH11, RH12, RH6)
- Region
- West Sussex
- Guide price
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Certified
- F-Gas certified, NICEIC approved, MCS
- Pricing
- Fixed, in writing
- Phone
- 07833 053749
- Updated
- 30 October 2026
What air source heat pumps cannot fix
It’s worth knowing the limits before booking:
- Disconnecting or servicing a gas boiler
- Improving the building’s insulation
- Planning approval where permitted development doesn’t apply
Not sure which it is? You can call us on 07833 053749 or fill in the contact form and we will tell you honestly.
What we work on in Crawley
- Homes heated by oil, LPG or gas
- Hot water cylinders
- Radiator systems
- Air-to-water heat pumps
- Air-to-air heat pumps
- Underfloor heating
What a heat pump looks like in Crawley
About 56% of homes across Crawley and its surrounding area date from 1945 to 1972, according to VOA council tax data, and Census 2021 figures found about 36% of households in terraced houses. Whether the walls and loft have been insulated makes a real difference to the heat pump size for homes of that period. Terraced houses share walls with neighbours, which helps, but the outdoor unit position needs care with noise next door.
If your home is one of the older properties near Friary Church of St Francis and St Anthony, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen. If your home is near Crawley station and heated by a gas boiler, an air-to-water heat pump can replace it where the survey shows it suits.
Crawley is about 27 miles south of London, in West Sussex. Homes and businesses alike in Crawley, our engineers can help with air source heat pumps. We reply to enquiries the same working day and our emergency line runs 24/7. Our area takes in 371 places across West Sussex, large and small.
A recent job of ours in Crawley was on Manor Royal Business District (RH10): installing a Daikin VRV system serving six indoor cassette units across an open-plan office, two meeting rooms and a server room.
With the A23 and A264 close by, Crawley is simple for us to get to for visits of every kind. Station Road, Queens Square and High Street and the roads off them are all inside our area. We also cover Southgate (1 mile south-west), Tilgate (1 mile south-east), West Green (1 mile north), Three Bridges (1 mile east) and Langley Green (1 mile north). Larger places within reach include Horsham (7 miles south-west), Haywards Heath (9 miles south-east), Burgess Hill (11 miles south) and East Grinstead (8 miles east).
Landmarks near Crawley
Around Crawley, our work takes us to homes and businesses near Tilgate Park, St Wilfrid's Catholic School and St Francis of Assisi Catholic Primary School, among other places. Crawley has its own railway station: Crawley station. A little further out are Crawley Hospital (0.5 miles north-west) and County Mall (less than half a mile north-east). The countryside around Crawley includes Tilgate Lake.
Looking after it afterwards
To keep the system working properly:
- Diary the next service
- Don’t block radiators or indoor units with furniture
- Use the settings explained at handover
After commissioning, the installation is registered under MCS and you receive the certificate. Keep it with the manufacturer’s paperwork for future reference.
Let the heat pump run steadily rather than switching it on and off, using the settings agreed at handover.
FAQs for Crawley
Is planning permission needed for a heat pump in Crawley?
There’s no single answer: the building and the outdoor unit position decide it. The Brighton Road Conservation Area is close to the centre of Crawley. A heat pump on a house can be permitted development if it meets the conditions, including the MCS noise check, but not within the grounds of a listed building, and in a conservation area the outdoor unit can’t face a road. Where necessary, we check with Crawley council, which is typically the planning authority for Crawley.
Does the Boiler Upgrade Scheme cover homes in Crawley?
Yes, the scheme covers homes in England, including Crawley, if they qualify. It gives £7,500 towards an air-to-water or ground source heat pump, or £2,500 towards an air-to-air heat pump that replaces the fossil-fuel heating and meets the whole home’s heating need. We hold MCS certification, so the application is ours to make for you.
Do you offer maintenance contracts?
Yes. Send details of the systems and how they’re used and we will propose a schedule and quote for it. Leak checks required by the F-gas rules can be built in for larger systems.
Do you protect the property while you work?
Floors and furniture near the work are covered with dust sheets before work begins, and we tidy up as we go. Before we leave, we clear up and run through the work with you.
Whose job is it to check the system for leaks?
Whoever operates the equipment, together with the technicians who service it. Systems below 5 tCO2e fall outside the set leak check intervals, while larger ones need checks at least every 12 months, or every 6 months from 50 tCO2e. We will work out which band applies to yours.
What’s the difference between air-to-water and air-to-air heat pumps?
It depends on your home, your heating and whether you want cooling. Air-to-water can attract a £7,500 grant where eligible; air-to-air only qualifies for £2,500 under strict conditions, and we set out the options after the survey.
Do you work on systems someone else installed?
Yes. We start with a proper look and tell you honestly what we find, including anything about the original installation that needs putting right. Any work is priced before it goes ahead.
How we price air source heat pumps
Typical ranges are on our prices page, and your quote is built on your job. The quote depends on:
- How many units are involved
- The pipe route between the units
- The brand, model and parts involved
The cost depends on the type of system and how many units are involved, the access and what the work involves. You get a fixed price before we start, so you know where you stand.
What to send for a quote
Simple jobs can often be priced from photos and some basics. Useful things to send:
- The outdoor side of the property, including any roof or flat area
- Your installation or service records
- Any error code or flashing light on the display
For a fixed-price quote, phone 07833 053749 or write to us at info@aircondoctor.co.uk with the address and a few details about the rooms or units involved. A few photos make it quicker. We reply to enquiries the same working day.
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A customer’s words
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead