West Sussex · Heat pump installation
Heat pump installation in Hunston, West Sussex
Air source heat pumps in and around Hunston, from a site survey or diagnosis to sign-off with the price fixed before work begins.
- Finding a place for the outdoor unit
- Questions about listed buildings or conservation areas
- Not knowing whether a grant applies
What happens on the day
Testing is the last part of the visit wherever the system can be switched on. Then we show you what we’ve done and answer any questions, and anything that needs attention later is pointed out. All told, the work takes a few days for most air-to-water installations, with air-to-air systems often quicker. A note on how to find the property and where to park makes a visit to Hunston easier.
- First we find out about the property, the heating you have now and what you are hoping for.
- We survey the home room by room for heat loss, and check the emitters, hot water and outdoor unit position.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- The system is commissioned and registered under MCS, and we show you how to use it.
Preparing for the visit
- Make sure we can reach the consumer unit or fuse board
- Have the make and model of any existing unit to hand
- Let us know where we can park and unload
Ask for a quote
For air source heat pumps in Hunston, call 07833 053749 or use the quote form. Let us know the type of property and what you need, plus some photos if they’re to hand. We reply the same working day.
Related advice
Air source heat pumps in Hunston, done properly
A £2,500 grant is available for some air-to-air heat pumps, with conditions. The system must replace the existing fossil-fuel heating and meet the home’s full heating demand, it must be installed by an MCS certified installer, and it must be in a home; adding it alongside a boiler does not qualify. If you are dealing with an oil, LPG or gas boiler near the end of its life and working out where a cylinder could go, we can help.
Space for an outdoor unit is rarely an issue near Hunston, so the design focuses on heat loss and radiators.
Warranty on the equipment is the manufacturer’s own, on the manufacturer’s terms, and we set them out on your quote. Each brand sets its own conditions, so we go through them with you rather than leave you to find the small print.
- Location
- Hunston (PO20)
- Wider area
- West Sussex
- Certified
- NICEIC and F-Gas, MCS
- Quotes
- A fixed-price quote up front
- Costs
- £8,000–£16,000 (0% VAT on homes), before the grant
- Phone
- 07833 053749
- Page updated
- 30 October 2026
After we have gone
Simple habits make a real difference. We recommend:
- Keep up with insulation and draught-proofing
- Book a yearly service
- Read the manufacturer’s warranty terms for your brand
We show you how to use the controls and explain how a heat pump works differently from a boiler. Heat pumps tend to work best running steadily rather than in short bursts, and we will explain the settings for your home.
Have the system serviced regularly. Check the manufacturer’s terms, as they may include servicing conditions.
Places near Hunston
More services for Hunston
Hunston: your questions answered
Can I get the Boiler Upgrade Scheme grant in Hunston?
Hunston is in England, where the Boiler Upgrade Scheme runs. For an air-to-water heat pump the amount is £7,500; an air-to-air system can get £2,500 if it replaces the fossil-fuel heating outright, meets the home’s full heating demand and is not an add-on to a boiler. The installer applies, and we’re MCS certified.
Does sea air affect air conditioning in Hunston?
It can, as Hunston is within about 3 miles of the sea, where salt in the air is hard on coils and fixings. The outdoor unit position, its fixings and regular servicing all help near the sea.
Who is responsible for leak checks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. The interval depends on the refrigerant charge, measured in tonnes of CO2 equivalent: at least every 12 months from 5 tCO2e, and every 6 months from 50 tCO2e.
What does an air-to-water heat pump cost?
For air-to-water, the price is £8,000–£16,000 (0% VAT on homes) before any grant. The Boiler Upgrade Scheme offers £7,500 to eligible homes in England and Wales, and we confirm eligibility before you commit.
Do you offer maintenance contracts?
Yes. We offer maintenance contracts, set at the interval the system and the manufacturer’s terms need. Each visit is recorded, with F-Gas records where refrigerant work is involved.
Why use an F-Gas certified company?
For refrigerant work, both the engineer and the company need the right F-gas credentials. It’s worth checking before booking, and we are happy to show ours.
Do you cover Hunston?
Yes. We cover Hunston and the rest of West Sussex, as part of our area across London and the South East. For a fixed-price quote, give us a ring on 07833 053749 or send an email.
What you can do yourself, and what needs us
For air conditioning, cleaning the indoor unit’s filters is the main job owners can do where the manufacturer’s manual explains how. With the power off, they lift out, can be vacuumed or rinsed and must be fully dry before they go back. For a heat pump, the main owner jobs are a clear outdoor unit and sensible control settings.
Write down what you notice: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It helps us diagnose quickly, and a photo of the display helps even more.
Homes in Hunston and heat pumps
The coast is only about 3 miles from Hunston. Near the coast, we choose the outdoor unit position with salt-laden wind in mind. Hunston’s centre is no more than about a third of a mile from the Hunston Conservation Area. There are 2 conservation areas within a mile of the centre of Hunston. Listed buildings are part of the picture here: about 12 within half a mile of the centre, such as The Manor House (grade II*). So the heat pump survey asks two extra questions here: is the home listed, and is it inside a conservation area? VOA council tax data show about 34% of homes in and around Hunston were built in 2000 or later. Lower heat loss in recent homes often means a smaller heat pump and fewer radiator changes.
With Goodwood House about 4.5 miles north, it’s worth asking whether your own home is listed before planning a heat pump. If your home is one of the older properties near St Leodegar's Church, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Hunston is about 2 miles south of Chichester, in West Sussex. Whether you’re in the middle of Hunston or further out, our engineers cover air source heat pumps, from small jobs to large ones. Our area takes in 371 places across West Sussex, large and small. Worthing, roughly 17 miles off, has its own page on this site.
Our nearest recent job to Hunston was on East Street, Chichester (PO19), about 2 miles north: installing a Daikin wall-mounted unit in the dining area and a second unit serving the kitchen pass area.
Heath Close, Westlands Road and St Leodegars Way and the roads off them are all inside our area. Jobs in PO20 are looked at, quoted and booked the same way as anywhere else. Close to Hunston, our area also takes in Donnington (1 mile west), North Mundham (1 mile east), Runcton (1 mile east), Portfield (2 miles north) and Chichester (2 miles north). Larger places within reach include Bognor Regis (4 miles east), Selsey (5 miles south), Littlehampton (11 miles east) and Emsworth (8 miles west).
What’s near Hunston
Locally, jobs take us to houses, flats and workplaces close to Chichester High School For Girls and The Spotted Cow Public House, among other places. For rail, the closest station is Chichester station, about 1.5 miles north. Other landmarks nearby include St Richard's Hospital (2.3 miles north) and Chichester Castle (2 miles north).
Different systems, different jobs
Air-to-water heat pumps
Air-to-water systems work at lower temperatures than boilers, so radiator sizes matter.
Heat loss surveys
The survey covers the building fabric and how air moves through it, and the size of each room.
What a customer said
“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