Buckinghamshire · Heat pump installation
Heat pump installers in Grendon Underwood
Looking for air source heat pumps in Grendon Underwood? We diagnose first, fix the price and book the work around you, then sign it off with written records.
- Questions about the Boiler Upgrade Scheme
- Deciding on the outdoor unit position
- Checking whether planning permission is needed
How we handle air source heat pumps in Grendon Underwood
A heat pump takes heat from the outside air and moves it into your home with electricity running the compressor and fans. The technology is close to air conditioning, which is why we install both and the Energy Saving Trust notes that air-to-air heat pumps are sometimes referred to as air conditioning. The work covers air-to-water heat pumps, underfloor heating and air-to-air heat pumps, and people most often call us about planning and permitted development questions and moving away from fossil-fuel heating.
Space for an outdoor unit is rarely an issue near Grendon Underwood, so the design comes down to heat loss, radiators and hot water.
We are an F-Gas certified company, NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Where
- Grendon Underwood (HP18)
- Wider area
- Buckinghamshire
- Quote
- Fixed after a survey or pictures
- Credentials
- F-Gas certified company, NICEIC approved, MCS
- Typical price
- £8,000–£16,000 (0% VAT on homes), before the grant
- Phone
- 07833 053749
- Last updated
- 30 October 2026
After we’ve gone
Looking after the system is mostly common sense. Our tips:
- Use the settings explained at handover
- Clear leaves and debris from the outdoor unit
- Find out the grant position at the survey
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.
Have the system serviced regularly. Your manufacturer’s warranty terms may say something about servicing.
Why it’s worth doing now in Grendon Underwood
The extra £1,500 for homes heated by oil or LPG with no mains gas is available until March 2027. If that applies to you, it’s worth asking about sooner rather than later. A dirty or faulty system works harder and costs more to run.
Leaving a fault or an overdue service rarely makes the work cheaper. Faults and wear in a system tend to grow, and a struggling system uses more electricity to do less. If you’re not sure what’s needed, ring us on 07833 053749 or use the quote form for straight advice and a fixed price.
Why us?
- NICEIC approved electrical contractors
- Covering London and the South East
- F-Gas company certification
- A 24/7 emergency line
Take a look at how installs are priced or our accreditations.
What we do, step by step
Our engineers arrive at the time agreed with you and run through the plan before anything else. Dust sheets go down over floors and anything close to the work, and anything electrical is made safe before work starts. The work itself takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. Visits to Grendon Underwood are agreed with you in advance and planned so the job can be finished in one trip where possible.
- It begins with your house and the heating it relies on now.
- 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.
- We install, commission and register the system under MCS.
Before we arrive
- Clear the space around the indoor unit, or where it will go
- Let us know where the consumer unit is
- Tell us about any building rules, permits or sign-in
Getting a price
Published ranges are a starting point; the quote is built on your property, because no two buildings, rooms or systems are the same. After a look at the job, by photos or a survey, the price is fixed. To start, call us on 07833 053749 or drop us a line.
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Common questions in Grendon Underwood
Will a heat pump in Grendon Underwood need planning permission?
There’s no single answer: the building and the outdoor unit position decide it. There’s a conservation area, the Grendon Underwood Conservation Area, close to central Grendon Underwood. Heat pumps on houses are often permitted development, but listed buildings need consent and conservation areas restrict outdoor units facing a road. Where it’s needed, we check with Buckinghamshire council, which is typically the planning authority for Grendon Underwood.
Do you cover smaller places like Grendon Underwood?
We do. Villages and hamlets get the same service as the bigger towns. We’re based in East Grinstead and plan each visit so the job can be finished in one trip where possible.
Are my radiators big enough for a heat pump?
The heat loss survey answers that, room by room. Where a radiator is already large enough, it stays and any changes are in the quote.
Can you set up regular servicing?
Yes. Maintenance contracts are part of what we do, set at the interval the system and the manufacturer’s terms need. Each visit is written up and F-Gas records kept where they apply.
Do I get paperwork after the visit?
Yes. Every visit is written up, including F-Gas records for any refrigerant work. Keep them with the manual and the warranty documents.
How does the warranty work?
It’s the manufacturer’s, and the terms are theirs. Some brands make regular servicing a condition so it’s worth keeping the service records.
Is there a survey before the work?
Yes. We always look before we price, either on a site survey or from pictures and details for simple jobs. A fixed-price quote follows.
Places near Grendon Underwood
More services for Grendon Underwood
Managing agents and facilities teams in Grendon Underwood
Where a tenant occupies the property but the landlord owns the system, it’s worth checking the agreement for who looks after the system. We can quote either party and send the records to whoever needs them.
Records are where property maintenance often slips. Each visit produces a dated record, plus the F-Gas records where refrigerant is involved, ready for a tenant, a buyer or an inspection.
Homes in Grendon Underwood and heat pumps
The last census (2021) found about 85% of households in detached or semi-detached houses. Detached and semi-detached houses typically have room for the outdoor unit and a cylinder.
With Claydon House about 3.6 miles north-east, it’s worth asking whether your own home is listed before planning a heat pump. Live in one of the older houses around Church of St Leonard? Expect the survey to look closely at heat loss and at the building’s planning status.
Grendon Underwood is about 6 miles east of Bicester, in Buckinghamshire. If you need air source heat pumps in Grendon Underwood, it’s easy to get a fixed-price quote: please call 07833 053749 or fill in the contact form. Our area covers London and the South East, Grendon Underwood included. Grendon Underwood is one of 263 towns, villages and districts in Buckinghamshire where we work. We also work in London, around 47 miles away.
Streets in the area include Main Street, The Firs and Darley's Close, all of which are in our area. If your postcode is in HP18, we can take the job on. We also cover the places around Grendon Underwood: Edgcott (1 mile north), Ludgershall (2 miles south-west), Piddington (3 miles south-west), Blackthorn (4 miles west) and Brill (5 miles south-west). Within a short drive, we also cover Aylesbury (9 miles south-east), Buckingham (8 miles north), Elmhurst (9 miles south-east) and Southcourt (10 miles south-east).
Local landmarks in Grendon Underwood
For a walk, there’s Upper Ray Meadows.
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