Kent · Heat pump installation
Air Source Heat Pumps in Chainhurst
Heat pump installation, in Chainhurst and nearby. Call for a fixed-price quote, and we’ll reply the same working day.
- Working out whether radiators need upsizing
- Checking eligibility for a heat pump grant
- Checking whether planning permission is needed
Air source heat pumps in Chainhurst
Heat pumps run at lower flow temperatures than most boilers, so radiators may need to be larger to give out the same heat. The survey shows which rooms are fine and which need changes, and the quote sets it out. The work covers air-to-air heat pumps, hot water cylinders and underfloor heating, and people most often call us about deciding on the outdoor unit position and working out whether radiators need upsizing.
Space for an outdoor unit is rarely an issue near Chainhurst, so the design focuses on heat loss and radiators.
Warranty periods vary by brand and by product. For instance, Daikin’s standard warranty on split air conditioning is 2 years, and its longer extensions apply to its air-to-water units only. For any other brand, we explain the manufacturer’s terms on your quote.
- Place
- Chainhurst (TN12)
- Region
- Kent
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Pricing
- Fixed after a survey or pictures
- Certified
- NICEIC and F-Gas, MCS
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
For landlords and property managers
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.
We also work for facilities teams in offices, schools and public buildings in Chainhurst and across Kent. Larger buildings can be done in stages to keep disruption down.
Why deal with it now?
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. Dealing with it now is typically simpler than a breakdown later.
Our prices page shows typical ranges, but your price depends on the job in front of us. Call for a fixed-price quote, and we will explain what it covers.
Why book with us
- MCS certification for heat pump work
- A fixed price before any work starts
- F-Gas certified company
- We reply to enquiries the same working day
Take a look at our cost guide and how to check a contractor.
Homes in Chainhurst and heat pumps
About 36% of homes in Chainhurst and the neighbourhoods around it were built before 1919, according to Valuation Office Agency council tax records, and the last census (2021) found about 71% of households in detached or semi-detached houses. Older homes can lose heat faster, so a room-by-room heat loss calculation, and sometimes insulation or larger radiators, comes before sizing a heat pump. Houses usually have space for an outdoor unit and a hot water cylinder.
Every heat pump design starts with a room-by-room heat loss calculation. Grant applications go through the MCS certified installer, so that part is handled for you.
Chainhurst is about 5 miles south-west of Maidstone, in Kent. Whether you are in the middle of Chainhurst or further out, our engineers cover air source heat pumps, from small jobs to large ones. We cover 922 places across Kent, large and small. The nearest of our city pages is East Grinstead, around 22 miles from Chainhurst.
Whether you’re on Raynham Villas and Hunton Road or a nearby road, we can help. Our working area takes in TN12 in full. We also cover Hunton (1 mile north-west), Benover (2 miles north-west), Congelow (2 miles north-west), Coxheath (2 miles north) and Yalding (2 miles north-west). Within a short drive, we also cover Maidstone (5 miles north-east), Sittingbourne (15 miles north-east), Sevenoaks (14 miles north-west) and Royal Tunbridge Wells (10 miles south-west).
What’s near Chainhurst
The nearest railway station is Marden station, about 2 miles south of the centre. A little further out are South East Romany Museum (2.6 miles south-east) and Oakwood Hospital (4.6 miles north).
How it works
Refrigerant work is done by qualified engineers working for an F-Gas certified company, while the electrical side is covered by our NICEIC approval. So on the day, you don’t need a separate electrician for the electrical side. On site, it takes a few days for most air-to-water installations, with air-to-air systems often quicker. We agree a date with you and plan the visit to Chainhurst so we arrive with what’s needed.
- First we talk through the property and the current system.
- A heat loss survey is carried out, room by room.
- From those figures we size the heat pump and decide on radiators, cylinder and outdoor position.
- A fixed-price quote explains the cost, the grant position and the VAT.
- We install, commission and register the system under MCS.
Getting ready for the visit
- Arrange for someone to be there to let us in
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Let us know where we can park and unload
Getting a price
The quickest way to a quote is to send photos: 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. Add the address and what you’d like done, and many jobs can be priced from that.
Advice
Owner checks or an engineer?
Write down what you notice: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It helps us diagnose quickly, and a photo of the display helps even more.
Leave the units and pipework where they are. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrical side needs a competent person. If you need something moved, we can quote for it.
Chainhurst questions
Will you come out to Chainhurst?
Yes, smaller places are covered as well as towns. A few pictures and the postcode are enough to get things started.
Do I need planning permission for a heat pump in Chainhurst?
It comes down to the building and the spot chosen for the outdoor unit. Around 10 listed entries sit within 0.5 miles of central Chainhurst. A heat pump on a house can be permitted development if it meets the conditions, including the MCS noise check, but not within the grounds of a listed building, and in a conservation area the outdoor unit cannot face a road. Where needed, we check with Maidstone council, which is usually the planning authority for Chainhurst.
Will you work on another installer’s system?
Yes. We work on systems fitted by other installers as well as our own, on all the main brands. Send us the make and model, and any records you have.
Should I choose air-to-water or air-to-air?
Air-to-water replaces the boiler for heating and hot water, while air-to-air heats and cools rooms, and we help you choose. We install both types.
Why use an F-Gas certified company?
Companies working on equipment that contains F gas must be certified by an approved body, and each engineer needs the right qualifications too. It means the refrigerant in your system is handled legally.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7 for problems that can’t wait for a planned visit. Ring 07833 053749 any time and explain the problem.
Do you work on commercial properties?
Yes. Homeowners, landlords, agents and businesses all book us across London and the South East. Let us know who the records should go to.
Also in Chainhurst
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