Kent · Heat pump installation
Heat pump installers in Knatts Valley
Air source heat pumps across Knatts Valley and nearby, from a site survey or diagnosis to sign-off and a fixed price agreed before work begins.
- Finding a place for the outdoor unit
- Questions about listed buildings or conservation areas
- Ageing boilers that will need replacing
Air source heat pumps in Knatts Valley, done properly
Every installation starts with a heat loss survey. It shows how much heat each room needs on a cold day so the system is sized to match. Guesswork leads to systems that are too big or too small. The work covers underfloor heating, air-to-air heat pumps and air-to-water heat pumps, and common reasons people get in touch are a boiler that’s getting old and not knowing whether a grant applies.
If your home in or near Knatts Valley is heated by oil, LPG or electric heaters with no mains gas, an extra £1,500 is available through the Boiler Upgrade Scheme until March 2027, on top of the £7,500.
We are an F-Gas certified company, NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Refrigerant work is done by engineers who hold the F-gas qualifications the law requires.
- Where
- Knatts Valley (TN15)
- Wider area
- Kent
- Accreditations
- NICEIC and F-Gas, MCS
- Quotes
- Fixed, in writing
- Prices
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Response
- On the working day you ask
- Phone
- 07833 053749
- Reviewed
- 30 October 2026
Homes in Knatts Valley and heat pumps
About 74% of households live in detached or semi-detached houses, according to the 2021 Census. Finding room for the outdoor unit and a cylinder is seldom a problem in homes like these.
Historic houses such as Lullingstone Castle, about 2.8 miles north-west, are a reminder that listed homes need consent before a heat pump goes in.
Knatts Valley is about 4 miles north-east of Sevenoaks, in Kent. Whatever kind of property you have in Knatts Valley, our engineers can help with air source heat pumps. You will hear back from us the same working day, and there’s a 24/7 emergency line. Our Kent coverage runs to 922 places, and Knatts Valley is one of them. Bromley is in our area too, about 11 miles from Knatts Valley.
The closest recent job we can point to from Knatts Valley was on Station Road, Orpington (BR6), about 7 miles north-west: installing three Daikin cassette units in the main office area and a wall-mounted unit in the client meeting room.
From Knatts Lane and Knatts Valley Road to the smaller roads in between, the whole area is covered. If your postcode is in TN15, you’re inside the area we cover. Close to Knatts Valley, our area also takes in East Hill (1 mile north-west), Woodlands (1 mile south), Romney Street (1 mile west), West Kingsdown (1 mile north-east) and Cotman's Ash (1 mile south). Further out, we also cover Maidstone (13 miles east), Dartford (8 miles north), Sevenoaks (4 miles south-west) and Royal Tunbridge Wells (14 miles south).
Local landmarks in Knatts Valley
Around Knatts Valley, our work takes us to homes and businesses near Kemsing Down, among other places. For rail, the closest station is Kemsing station, roughly 2.5 miles south of the centre. Nearby you’ll also find Sevenoaks Hospital (3.9 miles south-west) and Kemsing Castle Bank (2 miles south-west).
Also near Knatts Valley
Other services in Knatts Valley
Knatts Valley: your questions answered
Will you come out to Knatts Valley?
Yes, smaller places are covered as well as towns. Visits to smaller places are planned so the engineer arrives with what the job needs.
Is a heat pump in Knatts Valley permitted development?
It comes down to the building and the spot chosen for the outdoor unit. Central Knatts Valley sits inside a 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 Knatts Valley, usually Sevenoaks council).
What does F-Gas certified mean?
Companies working on equipment that contains F gas must be certified by an approved body, and the engineers need their own qualifications. It means the refrigerant in your system is handled legally.
Are my radiators big enough for a heat pump?
We find out during the survey. Rooms where the radiator is big enough stay as they are and any changes are in the quote.
Will you make a mess?
Floors and furniture near the work are covered with dust sheets before work begins, and the area is kept tidy throughout. At the end, we clear up and show you what we have done.
Which type of heat pump is right for my home?
Air-to-water suits homes with radiators and a cylinder; air-to-air suits rooms that need heating and cooling. The survey helps decide. We install both types.
Can you come out in an emergency?
Yes, 24/7. Call the emergency line and tell us the make, the symptoms and any error code, and we will advise on what to do next.
What we do, step by step
Everything the job needs comes with us, from tools and test equipment to ladders and dust sheets. You only need to give us clear access to the units, or their planned positions, and to the fuse board. The visit takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. Visits to Knatts Valley are agreed with you in advance and planned so the job can be finished in one trip where possible.
- We start with your plans and the property.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- You get our view on the right type for the house, and on whether the Boiler Upgrade Scheme applies.
- The system is installed and connected to the controls.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Getting ready for the visit
- Let us know if the building has a permit or sign-in process
- Plan for pets to be kept clear during the visit
- Move furniture away from the wall where we’ll be working
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. Once we have looked at the job, from photos or on a survey, you get a fixed price. To start, ring us on 07833 053749 or send an email.
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For landlords and property managers
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed-price quote.
Landlords, letting agents and managing agents book us, not only the people who live or work in the property. Tell us who the contact on site is and who should receive the paperwork, and we’ll keep everyone informed.
When to call us in Knatts Valley
Some homes heated by electric heaters or storage heaters consider a heat pump instead. A survey shows whether a heat pump suits the property and what would need to change, and we explain the grant position for your home.
The things we are asked about most include:
- Moving away from fossil-fuel heating
- Checking emitters for a heat pump
- Questions about the Boiler Upgrade Scheme
Period properties close to Church of Saint Mary the Virgin can suit a heat pump, though insulation and any heritage protection are checked first.
Questions to ask before you book
- Proof of F-Gas company certification
- Whether the price is fixed or an estimate
- The make and model of any parts or equipment being quoted
After we have gone
So the system stays in good health:
- Keep up with insulation and draught-proofing
- Keep the MCS certificate with the manufacturer’s paperwork
- Check what your manufacturer’s warranty asks of you
Equipment warranties come from the manufacturer. We go through the conditions with you, including any servicing they ask for.
Keep the outdoor unit clear of leaves, plants and stored items. Airflow is what it runs on, so keep it clear all year.
From one of our customers
“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