West Sussex · Heat pump installation
Air Source Heat Pumps in Thorney Island
Air source heat pumps for Thorney Island and the surrounding area: diagnosis first, then a fixed-price quote, the work and written records. Ask us for a fixed-price quote.
- An oil, LPG or gas boiler near the end of its life
- Questions about listed buildings or conservation areas
- Choosing between air-to-water and air-to-air
How it works
The visit goes in the diary at a time that works for you, and we let you know if plans need to move. When we arrive, we check the job against the survey or the photos you sent. If something is different, we talk it through with you before carrying on. From there, the work takes a few days on site, depending on the cylinder, the radiators and the pipework involved. Rural lanes and tight entrances are worth mentioning before a visit to Thorney Island.
- First we find out about the property, the heating you have now and what you are hoping for.
- A heat loss survey works out how much heat each room needs, and we look at the radiators, the cylinder space and where the outdoor unit could go.
- You get a fixed-price quote, with any grant you are eligible for and the VAT explained.
- The outdoor unit, the indoor equipment and the controls are installed and connected.
- Commissioning, MCS certification and a handover of the controls finish the job.
Before we arrive
- Arrange for someone to be there to let us in
- Let us know where the consumer unit is
- Mention any parking restrictions near the property
Getting a quote
Some jobs can be priced from pictures, while others need a survey. Multi-room systems, commercial buildings and anything with a long or hidden pipe route are normally surveyed first. Either way, the quote is fixed before anything goes ahead.
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Air source heat pumps for homes and businesses in Thorney Island
As an MCS certified installer, we fit air source heat pumps for homes in Thorney Island 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. Typical jobs include working out where a cylinder could go and checking emitters for a heat pump, across hot water cylinders, homes heated by oil, LPG or gas and underfloor heating.
In a place like Thorney Island, some homes are listed, because permitted development doesn’t apply within the grounds of a listed building, so consent comes first.
Whatever the visit, you get a written record: commissioning details and F-Gas records for a new system, a note of the fault and the fix for a repair, or a service record. Keep it with the system’s paperwork so it’s to hand next time.
- Place
- Thorney Island (PO10)
- Wider area
- West Sussex
- Approvals
- F-Gas certified, NICEIC approved, MCS
- Replies
- Answered the same working day
- Price
- Fixed, in writing
- Costs
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Common problems we fix in Thorney Island
An ageing boiler is often the moment people start thinking about a heat pump. Planning the change before the boiler fails gives you time to survey, design and apply for any grant instead of making a rushed decision when the heating stops.
Most people get in touch when they notice one of these:
- An oil, LPG or gas boiler near the end of its life
- Not knowing whether a grant applies
- Radiators that may be too small for a heat pump
Older homes near The Parish Church of St Nicholas may need extra checks for planning and heat loss before a heat pump is designed.
What your quote should include
- Whether you get F-Gas records where refrigerant is involved
- The make and model of any parts or equipment being quoted
- Whether the price is fixed or an estimate
How we price air source heat pumps
A fixed price needs a few facts first. We look at:
- Which make and model is being fitted or worked on
- The type of system, from a single split to a larger system
- Whether the existing supply is suitable
One room or a whole building, we price it on the same basis: what needs doing, how we get to it and what it needs. You’ll have a fixed price before any work starts, with VAT shown clearly.
What we need to know
When you contact us, it’s useful to have:
- The outdoor side of the property, including any roof or flat area
- The fuse board and where it is in the property
- The postcode and whether it’s a home, flat or business
Photos are the fastest route to a quote: the room or the existing unit, the outside wall or roof where the outdoor unit sits or would go, and the label on any existing unit. Tell us the address and what you need, and many jobs can be priced from that.
Also near Thorney Island
More services for Thorney Island
Different systems, different jobs
Heat loss surveys
Without a proper survey, a heat pump can be too big or too small and that matters for comfort and running.
Radiators and underfloor heating
At lower water temperatures, radiators give out less heat so we check them against each room’s heat loss.
Your questions about air source heat pumps in Thorney Island
Will you come out to Thorney Island?
Yes, and the size of the place makes no difference to how we work. We’re based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
Can I get the Boiler Upgrade Scheme grant in Thorney Island?
Thorney Island is in England, where the Boiler Upgrade Scheme runs. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. The installer applies, and we’re MCS certified.
Can we book visits on a schedule?
Yes. We offer maintenance contracts, with visits at the interval your system and the manufacturer need. Each visit is recorded, with F-Gas records where refrigerant work is involved.
Do you provide F-Gas records?
Yes, on every job. New installations come with commissioning details, F-Gas records and warranty information, and repairs and services get a record of the work.
Can landlords and managing agents book you?
Yes. We work for homeowners, landlords, letting and managing agents, and businesses of every size across London and the South East. Let us know who the records should go to.
Can you come out in an emergency?
Yes, day and night. When you call, tell us the make, what’s happening and any error code, and we’ll advise on what to do next.
What accreditations do you have?
We hold F-Gas company certification, which the law requires for any business working on refrigerant. We’re also NICEIC approved, MCS certified for heat pumps and Checkatrade members.
Air source heat pumps around Thorney Island
The coast is only about 1 mile from Thorney Island. Coastal sites are worth mentioning at the survey, as salt air affects the outdoor unit and its fixings. About 70% of households live in detached or semi-detached houses, according to Census 2021 figures. Houses usually have space for an outdoor unit and a hot water cylinder.
With Warblington Castle about 2.1 miles north-west, it’s worth asking whether your own home is listed before planning a heat pump.
Thorney Island is about 4 miles south-east of Havant, in West Sussex. Whatever kind of property you have in Thorney Island, we can help with air source heat pumps. You’ll hear back from us the same working day and our emergency line runs 24/7. Count every place we list in West Sussex and you reach 371, with Thorney Island on the list. Our Worthing page covers places nearby, about 23 miles away.
The closest recent job we can point to from Thorney Island was on East Street, Chichester (PO19), about 7 miles east: installing a Daikin wall-mounted unit in the dining area and a second unit serving the kitchen pass area.
Every address in PO10 is within our area, from busy streets to back roads. Our engineers work on Hunter Road, Emsworth Road and Spartan Close and nearby roads. Close by, we work in West Thorney (1 mile south-east), North Hayling (1 mile west), Tye (1 mile south-west), Northney (1 mile west) and Emsworth (2 miles north). Within a short drive, we also cover Bognor Regis (11 miles east), Chichester (7 miles east), Selsey (9 miles south-east) and Portfield (7 miles east).
Local landmarks in Thorney Island
Around Thorney Island, our work takes us to homes and businesses near Bourne Community College and Eames Farm and the streets around them. The closest station to Thorney Island is Southbourne station, about 1.8 miles north-east of the centre. Nearby you will also find Havant War Memorial Hospital (3.2 miles north-west) and Emsworth Museum (1.6 miles north). Open spaces near Thorney Island include Nutborne Marshes.
From one of our customers
“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