Oxfordshire · Heat pump installation
Marsh Gibbon air source heat pumps
Air source heat pumps across Marsh Gibbon and nearby, from a site survey or diagnosis to sign-off with the price fixed before work begins.
- Choosing between air-to-water and air-to-air
- Radiators that may be too small for a heat pump
- An oil, LPG or gas boiler near the end of its life
FAQs for Marsh Gibbon
Is the heat pump grant available in Marsh Gibbon?
Yes, if the home and the heat pump meet the scheme’s rules: Marsh Gibbon is in England, where it applies. The amount depends on the type of heat pump, and the survey confirms which applies. As an MCS certified installer, we apply for it on your behalf.
Do I need planning permission for a heat pump in Marsh Gibbon?
It depends on the property. The centre of Marsh Gibbon is in the Marsh Gibbon Conservation Area. 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 the local planning authority (for Marsh Gibbon, normally Buckinghamshire council).
When will I hear back?
We reply to enquiries the same working day. If it’s an emergency, ring the 24/7 line instead.
Do you work in Marsh Gibbon?
Yes. Our engineers work in Marsh Gibbon, within the South East and London area we cover. We are based in East Grinstead, West Sussex.
Can I fit air conditioning or a heat pump myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That is the law, not just our preference, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
Do you work on all makes?
The main ones, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. For a new system, we suggest the make and model that suit the property and explain why.
How much does an air source heat pump cost?
An air-to-water heat pump costs £8,000–£16,000 (0% VAT on homes) before the grant. The Boiler Upgrade Scheme offers £7,500 to eligible homes in England and Wales though not every home qualifies.
Air source heat pumps for homes and businesses in Marsh Gibbon
We begin with a room-by-room heat loss survey. It shows how much heat each room needs on a cold day, so the heat pump and the radiators or indoor units can be sized properly. Guesswork leads to systems that are too big or too small. Common call-outs are for comparing heat pump types and not knowing whether a grant applies, across hot water cylinders, radiator systems and homes heated by oil, LPG or gas.
In a place like Marsh Gibbon, some homes are listed, and permitted development does not cover listed buildings, so consent comes first.
The records are your system’s health record: what was fitted or found, what was done and when. It makes the next visit quicker and any warranty question simpler, so keep it safe.
- Location
- Marsh Gibbon (OX27)
- Wider area
- Oxfordshire
- Quotes
- Fixed-price quote after a site survey
- Credentials
- F-Gas certified, NICEIC approved, MCS
- Price guide
- £8,000–£16,000 (0% VAT on homes), before the grant
- Telephone
- 07833 053749
- Updated
- 30 October 2026
Do you need air source heat pumps in Marsh Gibbon?
Many people look at heat pumps when an oil, LPG or gas boiler is getting old. 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.
These are the situations we see most often:
- Ageing boilers that will need replacing
- Radiators that may be too small for a heat pump
- No space for a hot water cylinder
If your home is listed, like Claydon House about 4.8 miles east, listed building consent comes before any heat pump work.
Before you book anyone
- Proof of F-Gas company certification
- How extra work would be agreed if they find something unexpected
- If the figure could change on the day
What owners can safely do
Owners can handle the everyday basics: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Anything inside the units, the electrics and the refrigerant is engineer’s work.
Never try to top up, release or handle refrigerant yourself. The law requires anyone working on equipment containing F gas to hold the right qualifications, and the company to be certified, and escaping refrigerant can cause cold burns. A suspected leak is our job, not yours.
Other services in Marsh Gibbon
What happens on the day
Protection comes first: dust sheets over floors and furniture near the work, and we ask before moving anything. After that, anything electrical is made safe and we start. It takes from a couple of days to around a week, depending on the system and how much of the heating changes, and we clear up before we go. Photos of the room and the outside of the property help us plan a visit to Marsh Gibbon.
- First we talk through the property and the current system.
- Every room’s heat loss is worked out on site.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- Cost, grant and VAT appear on one fixed-price quote.
- Then it’s fitted, commissioned and registered with MCS.
Preparing for the visit
- Keep pets out of the rooms we’re working in
- Clear the space around the indoor unit, or where it will go
- Clear access to the fuse board
How to get a quote
Want a quote for air source heat pumps? Please give us a ring on 07833 053749 or use the quote form with a few details about the property. We’ll talk you through the options and give you a fixed-price quote before anything is booked.
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Air source heat pumps around Marsh Gibbon
The last census (2021) found about 61% of households in detached or semi-detached houses. Detached and semi-detached houses typically have room for the outdoor unit and a cylinder.
If your home is one of the older properties near Church of St Mary, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Marsh Gibbon is about 4 miles east of Bicester, in Oxfordshire. Marsh Gibbon gets the same approach as every job we take on: diagnosis first, a fixed price and proper paperwork when we’ve finished. Marsh Gibbon is one of 443 towns, villages and districts in Oxfordshire we cover for homes and businesses. London, roughly 50 miles off, has its own page on this site.
Our engineers cover all of the OX27 postcode area for air source heat pumps and the roads nearby. From Moorhen Close, Westbury Close and Moat Lane to the smaller roads in between, the whole area is covered. Other places close to Marsh Gibbon include Poundon (2 miles north), Charndon (2 miles north-east), Twyford (2 miles north-east), Calvert (3 miles east) and Preston Bissett (4 miles north). Larger places within reach include Oxford (13 miles south-west), Bicester (4 miles west), Thame (11 miles south) and Kidlington (11 miles south-west).
Around Marsh Gibbon
Locally, jobs take us to houses, flats and workplaces close to Plough Inn and the streets around them. The closest station to Marsh Gibbon is Bicester North station, roughly 3.7 miles west. Other landmarks nearby include Bicester Community Hospital (4 miles west) and Bicester Village (4 miles west). The countryside around Marsh Gibbon includes Upper Ray Meadows and Graven Hill.
For landlords and property managers
Bigger systems bring extra duties: a TM44 inspection by an accredited energy assessor is required at least every 5 years for systems over 12 kW. We can arrange it, prepare the system for it and fix what it finds.
Portfolio owners often want one contractor and one number. Our area covers Greater London and the South East, so a run of properties can go into one programme and kept to a regular schedule.
A customer’s words
“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