Buckinghamshire · Heat pump installation
Holly Green air source heat pumps
For air source heat pumps in Holly Green, one call is all it takes, from the first look to sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- Moving away from fossil-fuel heating
- A boiler that is getting old
- Choosing between air-to-water and air-to-air
Common questions in Holly Green
Is a heat pump in Holly Green permitted development?
It depends on the property. The half-mile around the middle of Holly Green holds about 11 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 Buckinghamshire council, which is typically the planning authority for Holly Green.
Will you come out to Holly Green?
Yes, smaller places are covered as well as towns. We’re based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
What does F-Gas certified mean?
Anyone installing, repairing or servicing the refrigerant side must be qualified, and their company certified. It’s worth checking before you book and we’ll gladly show you ours.
Do I need to service the system to keep the warranty?
It depends on the manufacturer’s terms. Some manufacturers make regular servicing by a qualified engineer a condition of the warranty, so check the terms or ask us. Either way, keep a record of every service.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for breakdowns that can’t wait. Call 07833 053749 and tell us what’s happened.
Is the equipment covered by a warranty?
The manufacturer’s warranty, on the manufacturer’s terms. Terms differ by brand, and we set them out on your quote.
What accreditations do you have?
F-Gas certified, NICEIC approved and MCS certified for heat pumps, and we are Checkatrade members. Our engineers also hold the individual F-gas qualifications needed to work on refrigerant.
How we handle air source heat pumps in Holly Green
Air-to-water heat pumps heat your hot water through a cylinder. If you have a combi boiler and no cylinder, the survey looks at where one could go. With air-to-air, hot water has to come from something else. If you’re dealing with working out where a cylinder could go and a boiler that’s getting old, we can help.
In a place like Holly Green, some homes are listed, because permitted development does not 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
- Holly Green (HP27)
- Region
- Buckinghamshire
- Quotes
- Fixed after a survey or photos
- Approvals
- F-Gas certified company, NICEIC approved, MCS
- Replies
- Same working day
- Typical price
- £8,000–£16,000 (0% VAT on homes), before the grant
- Telephone
- 07833 053749
- Updated
- 30 October 2026
What happens on the day
You don’t need to do much on the day. Someone needs to let us in and show us the units, or where they’re going, and the rest is down to us. Before we leave, the area is tidied and we explain what we’ve done. A note on how to find the property and where to park makes a visit to Holly Green easier.
- We talk through your home, your current heating and what you want from a heat pump.
- The survey measures heat loss room by room and looks at radiators, hot water and the best spot for the outdoor unit.
- You get a fixed-price quote, with any grant you’re eligible for and the VAT explained.
- We fit the outdoor unit and connect it to the heating, hot water and controls.
- Once it’s running correctly, the MCS certificate is issued and we show you the settings.
How to prepare
- Arrange for someone to be there to let us in
- Tell us about parking and loading
- Tell us about access, such as roof hatches, high walls or locked plant areas
Get a fixed-price quote
Photos are enough for some jobs; others need a visit first. Bigger systems, commercial sites and awkward pipe routes are normally surveyed on site. Either way, you get a fixed price before any work is booked.
Related advice
What the work involves, system by system
Radiators and underfloor heating
Underfloor heating works well with heat pumps because it uses lower temperatures and we look at it during the survey.
VAT on heat pumps
For air-to-air systems, HMRC’s view depends on the product and the situation and the VAT is confirmed on your quote.
Keeping the system healthy
A little care keeps the system in better shape. Our advice:
- Keep to regular servicing
- Check what your manufacturer’s warranty asks of you
- File the MCS certificate safely
Now and then in cold weather, the outdoor unit defrosts itself. You might see steam or hear the unit change note, and that’s normal.
Let the heat pump run steadily rather than switching it on and off, using the settings agreed at handover.
Homes in Holly Green and heat pumps
About 75% of households live in detached or semi-detached houses, according to the 2021 Census. Detached and semi-detached houses typically have room for the outdoor unit and a cylinder.
A heat loss calculation decides the size of heat pump your home needs. Live in one of the older houses around Church of the Holy Trinity? Expect the survey to look closely at heat loss and at the building’s planning status.
Holly Green is about 4 miles east of Thame, in Buckinghamshire. Homes and businesses alike in Holly Green, our engineers can help with air source heat pumps. We reply to enquiries the same working day, and there’s a 24/7 emergency line. 263 places in Buckinghamshire are on our list, from busy centres to quieter spots. For properties nearby, see our Guildford page, about 36 miles away.
If your postcode is in HP27, you’re inside the area we cover. Places around Holly Green that are also on our list: Pitch Green (1 mile south-east), Skittle Green (1 mile south), Forty Green (1 mile west), Henton (1 mile south-west) and Bledlow (1 mile south-east). Further out, we also cover Aylesbury (7 miles north-east), High Wycombe (9 miles south-east), Chesham (12 miles east) and Marlow (12 miles south-east).
What’s near Holly Green
Locally, jobs take us to houses, flats and workplaces close to The Peacock Country Inn and the streets around them. For rail, the closest station is Princes Risborough station, roughly 1.8 miles east. Well-known places in the area include Great Kimble Dial Hill (3.6 miles north-east) and Thame Community Hospital (3.9 miles west). For a walk, there’s Oakley Hill nature reserve and Beacon Hill.
Let and managed properties
Under the GB F-gas rules, responsibility for leak checks is shared between whoever operates the equipment and the engineers who work on it. In a let or managed building, it’s worth agreeing who that operator is, and we can work for either side.
Whether it’s one property or many, you get the same standard: a look at the job first, a fixed-price quote, work booked with the occupier and written records afterwards.
Also near Holly Green
What else we do in Holly Green
A customer’s words
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath