Kent · Heat pump installation
Heat pump installers in Underriver
Our engineers work in Underriver on air source heat pumps. A look at the job first, a fixed-price quote and written records at the end.
- Not knowing whether a grant applies
- Questions about where the outdoor unit can go
- An oil, LPG or gas boiler near the end of its life
Common questions in Underriver
Does the Boiler Upgrade Scheme cover homes in Underriver?
Underriver is covered, as the scheme runs across England and Wales. Air-to-water and ground source systems attract £7,500. Air-to-air gets £2,500, but only where it takes over from fossil-fuel heating and covers the whole home’s heating demand. As an MCS certified installer, we apply for it on your behalf.
Is planning permission needed for a heat pump in Underriver?
It comes down to the building and the spot chosen for the outdoor unit. The centre of Underriver is in 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 do not 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 Sevenoaks council, which is normally the planning authority for Underriver.
How much time does a heat pump install need?
The work takes a few days for most air-to-water installations, with air-to-air systems often quicker. The survey lets us set a firm programme, so ring us on 07833 053749 or drop us a line to arrange one.
Can I do the refrigerant work 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 systems someone else installed?
Yes. Systems fitted by other companies are fine from all the leading brands. Send us the make and model, and any records you have.
Will my radiators work with a heat pump?
It depends on each radiator and the room it heats. Heat pumps run at lower flow temperatures, so radiators give out less heat so we check every radiator against the room’s heat loss.
How do you keep the place clean during the work?
Floors and furniture near the work are covered with dust sheets before work begins, and we tidy up as we go. At the end, we clear up and show you what we’ve done.
Air source heat pumps in Underriver
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. Air-to-air systems do not heat hot water, so you’ll need another way to do that. Common call-outs are for a boiler that’s getting old and not knowing whether a grant applies, across hot water cylinders, air-to-water heat pumps and radiator systems.
For a home around Underriver that’s off mains gas and heated by oil or LPG, an extra £1,500 is available through the Boiler Upgrade Scheme until March 2027, on top of the £7,500.
Warranty on the equipment is the manufacturer’s own, on the manufacturer’s terms, and we set them out on your quote. Terms differ from brand to brand, and we’re happy to talk you through them.
- Place
- Underriver (TN15)
- Wider area
- Kent
- Costs
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Accreditations
- NICEIC and F-Gas, MCS
- Quote
- Fixed after a survey or pictures
- Enquiries
- We reply the same working day
- Phone
- 07833 053749
- Checked
- 30 October 2026
System by system
Air-to-water heat pumps
An air-to-water heat pump heats water for your radiators or underfloor heating and your hot water cylinder. It takes over from the boiler, and is MCS certified when we install it.
Radiators and underfloor heating
Heat pumps run at lower flow temperatures, so radiators may need to be larger, and the survey checks each one.
Also near Underriver
Other services in Underriver
Before you call an engineer
Owner care supports servicing; it does not replace it. Simple care keeps the air moving through the system, but the inside of the units, the refrigerant and the electrics still need a qualified engineer.
There are a few things you can safely do yourself: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Opening up the units, the electrics and the refrigerant circuit are a job for us.
Air source heat pumps in Underriver: the local picture
At about 22 miles from central London, Underriver sits inside the area we cover across London and the South East.
If your home is one of the older properties near Church of St Margaret, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen. Historic houses such as Knole House, about 1.6 miles north-west, are a reminder that listed homes need consent before a heat pump goes in.
Underriver is about 3 miles south-east of Sevenoaks, in Kent. Whether you are in the middle of Underriver or further out, we cover air source heat pumps, from a single room to a whole building. Count every place we list in Kent and you reach 922, with Underriver on the list. For properties nearby, see our East Grinstead page, about 13 miles away.
Our nearest recent job to Underriver was on Granville Road, Oxted (RH8), about 10 miles west: installing a Mitsubishi Electric wall-mounted unit in the home gym and a second unit in the master bedroom.
If your postcode is in TN15, we can take the job on. Close to Underriver, our area also takes in Budds (1 mile east), Bitchet Green (1 mile north-east), Watt's Cross (2 miles south), Godden Green (2 miles north) and Stone Street (2 miles north-east). Larger places within reach include Maidstone (13 miles east), Dartford (14 miles north), Sevenoaks (3 miles north-west) and Royal Tunbridge Wells (8 miles south).
Landmarks near Underriver
Typical jobs here are in properties near Knole Park and the streets around them. The closest station to Underriver is Hildenborough station, about 2.3 miles south. Well-known places in the area include Sevenoaks Museum (2.2 miles north-west) and Tonbridge Castle (4 miles south-east). Open spaces near Underriver include Dryhill Nature Reserve and Barden Lake.
How it works
We book the visit for a day and time that suit you, and we keep you posted if anything changes. When we arrive, we check the job against the survey or the photos you sent. If something is different, we talk it through with you before carrying on. From there, the work 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. Photos of the room and the outside of the property help us plan a visit to Underriver.
- We find out about your home and the heating you have now.
- 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.
- Then it’s fitted, commissioned and registered with MCS.
Before we arrive
- Tell us about access, such as roof hatches, high walls or locked plant areas
- Keep pets and children away from the work area
- Have the make and model of any existing unit to hand
Ask for a quote
Every quote shows the VAT clearly, and the rate that applies to your job is stated. VAT can differ between homes and businesses and between kinds of work, so we confirm it in writing rather than guess. For a fixed-price quote, call us on 07833 053749 or send an email.
Advice
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. Where a building is let or managed, the lease or contract should make clear who looks after the system, and we can work for either side.
Records are where property maintenance often slips. Each visit produces a dated record, with F-Gas records wherever refrigerant work is involved, ready for a tenant, a buyer or an inspection.
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