Hampshire · Heat pump installation
Heat pump installers in Denvilles
Air source heat pumps in Denvilles from an F-Gas certified company, with warranty terms explained brand by brand. We reply to enquiries the same working day.
- Deciding which kind of heat pump suits the home
- Planning and permitted development questions
- A boiler that is getting old
About our air source heat pumps in Denvilles
Installing an air source heat pump in a home is zero-rated for VAT until 31 March 2027, then 5%. This is HMRC’s energy-saving materials relief, which applies to homes rather than businesses, and for air-to-air systems we confirm the VAT on your quote. Please treat this as general information rather than tax advice. Typical jobs include questions about the Boiler Upgrade Scheme and a boiler that’s getting old, across air-to-water heat pumps, air-to-air heat pumps and homes heated by oil, LPG or gas.
Homes around Denvilles typically have space for an outdoor unit and a hot water cylinder, so heat loss, radiators and the electrics are what we check.
Refrigerant work is written up in the F-Gas records: what was done, the refrigerant type and any amount added or recovered. Keep the records with the manual and the warranty documents, ready for the next service or a warranty query.
- Place
- Denvilles (PO9, PO10)
- Region
- Hampshire
- Approvals
- F-Gas certified, NICEIC approved, MCS
- Enquiries
- Same working day
- Costs
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Price
- Fixed, in writing
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Questions from Denvilles
Does being near the sea make a difference to air source heat pumps in Denvilles?
It can. Denvilles is within about 1 mile of the coast, and salt air speeds up corrosion on outdoor units. The outdoor unit position, its fixings and regular servicing all help near the sea.
Can I fit a heat pump in Denvilles without planning permission?
That depends on the building and where the outdoor unit goes. The half-mile around the middle of Denvilles holds about 5 listed buildings and structures. On a house, an air source heat pump can often go ahead under permitted development, with an outdoor unit of no more than 1.5 cubic metres and an installation that meets MCS 020(a), which includes a noise check. Those rights don’t reach the grounds of a listed building, and conservation areas rule out walls or roofs facing a road. If that might affect you, we ask Havant council, which is usually the planning authority for Denvilles.
Do I need new radiators for a heat pump?
It varies from room to room. The survey compares each radiator with the room’s needs, so the quote covers any changes.
Do you offer emergency call-outs?
Yes. For anything urgent, such as a system failing in a server room or water leaking from a unit, ring our 24/7 line and we’ll agree what happens next.
Do you work on commercial properties?
Yes. We work for homeowners, landlords, letting and managing agents, and businesses of every size in Denvilles and across Hampshire. Let us know who the records should go to.
Is there a survey before the work?
Yes. For simple jobs, photos and a few details can be enough, while bigger systems and repairs that need testing get a visit.
How quickly will you reply?
You’ll hear from us the same working day. For a breakdown that can’t wait, call our 24/7 emergency line.
Owner checks or an engineer?
Owners can handle the everyday basics: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Opening up the units, the electrics and the refrigerant circuit are a job for us.
Do not move, re-route or disconnect units or pipework yourself. Disconnecting a system means dealing with refrigerant, which only a qualified engineer can do, and the electrics need care too. If you need something moved, we can quote for it.
Air source heat pumps around Denvilles
Denvilles is within about 1 mile of the coast. Near the coast, we choose the outdoor unit position with salt-laden wind in mind. About 61% of households live in detached or semi-detached houses, according to the last census (2021). Detached and semi-detached houses normally have room for the outdoor unit and a cylinder.
If your home is near Warblington station and heated by a gas boiler, an air-to-water heat pump can replace it where the survey shows it suits. Live in one of the older houses around St Thomas à Becket Church? Expect the survey to look closely at heat loss and at the building’s planning status.
Denvilles is about 1 mile south-east of Havant, in Hampshire. Properties in Denvilles get the same service as everywhere we cover: diagnosis first, a fixed price and proper paperwork when we have finished. Count every place we list in Hampshire and you reach 683, with Denvilles on the list. Worthing, roughly 25 miles off, has its own page on this site.
Our nearest recent job to Denvilles was on East Street, Chichester (PO19), about 8 miles east: installing a Daikin wall-mounted unit in the dining area and a second unit serving the kitchen pass area.
If your postcode is in PO9 and PO10, we can take the job on. Local streets include New Lane, Pook Lane and Elder Road, and we cover them all. Nearby, we also cover air source heat pumps in Warblington (1 mile south), Havant (1 mile north-west), Emsworth (1 mile east), Langstone (1 mile south-west) and Leigh Park (1 mile north-west). Larger places within reach include Gosport (9 miles south-west), Fareham (10 miles west), Horndean (4 miles north-west) and Hedge End (15 miles west).
Local landmarks in Denvilles
We fit and service air conditioning in homes and premises around Six Bells pub, St Albans Church and Fairfield Infant School and the streets around them. There’s a railway station in Denvilles itself: Warblington station. Nearby you’ll also find Warblington Castle (0.7 miles south) and Havant War Memorial Hospital (1 mile west). Open spaces near Denvilles include Brook Meadow (Emsworth).
Looking after it afterwards
Systems last better with the right care. We suggest:
- Clear leaves and debris from the outdoor unit
- Check what your manufacturer’s warranty asks of you
- Keep up with insulation and draught-proofing
Where we applied for a Boiler Upgrade Scheme grant, we keep you informed through the process, as the installer applies for it.
Keep radiators and indoor units unobstructed so the heat can get into the room.
What affects the cost of air source heat pumps
The quote reflects the job in front of us. We take into account:
- What state the existing equipment is in
- Whether we need access equipment for high-level work
- How far the pipework has to run, and where
The cost depends on the type of system and how many units are involved, the access and the parts and time the job needs. You get a fixed price before work begins, so you know where you stand.
Asking for a quote
Before you ask for a quote, gather:
- Where the property is and what kind of building it is
- A few photos of the room and the wall the unit is on, or will go on
- The remote or wall controller showing any error
Every quote starts with a look at the job, either on a site survey or, for simple jobs, from your photos and details. Then you get a fixed price before any work starts.
What we do, step by step
Each visit follows the same order: agree the plan on site, put the dust sheets down, carry out the job, test what we have done and explain it all to you. On site, the work takes from a couple of days to around a week, depending on the system and how much of the heating changes. Seeing the property in photos first helps us plan the trip to Denvilles.
- First we talk through the property and the current system.
- A heat loss survey is carried out, room by room.
- The design covers the heat pump, emitters, hot water and outdoor unit.
- A fixed-price quote explains the cost, the grant position and the VAT.
- Then it’s fitted, commissioned and registered with MCS.
Getting ready for the visit
- Make sure we can reach the outdoor unit, or where it will go
- Plan for pets to be kept clear during the visit
- Find the manual or the paperwork for the system, if you have it
How to get a quote
Want a quote for air source heat pumps? Please call 07833 053749 or fill in the contact form with a few details about the property. We’ll talk you through the options and give you a fixed-price quote before you commit to anything.
Related advice
Nearby places to Denvilles
What else we do in Denvilles
What a customer said
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager