Kent · Heat pump installation
Air Source Heat Pumps in Thong
Air source heat pumps for Thong, from F-Gas certified engineers, with warranty terms explained brand by brand. Enquiries answered the same working day.
- An oil, LPG or gas boiler near the end of its life
- Checking whether planning permission is needed
- Moving away from fossil-fuel heating
The process
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. Photos of the room and the outside of the property help us plan a visit to Thong.
- First, a chat about the property and your goals for the heating.
- 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.
- We install the heat pump and connect it up.
- After commissioning, you get the MCS certificate and a handover.
Before we arrive
- Make sure we can reach the outdoor unit, or where it will go
- Let us know where we can park and unload
- Mention any managing agent or landlord rules we need to follow
Ask for a quote
Our prices page gives typical ranges, but your quote is based on your job, because every property is different. After a look at the job, by photos or a survey, the price is fixed. To start, ring 07833 053749 or write to us at info@aircondoctor.co.uk.
Related advice
Air source heat pumps for homes and businesses in Thong
Many air source heat pumps can be installed as permitted development in England, without a planning application. Conditions include a maximum outdoor unit size of 1.5 m³, compliance with MCS 020(a), use for more than cooling alone and a site outside the curtilage of a listed building. We look at the planning position for your home during the survey. Typical jobs include finding a place for the outdoor unit and checking emitters for a heat pump, on air-to-water heat pumps, air-to-air heat pumps and underfloor heating.
Space for an outdoor unit is rarely an issue near Thong, so the design comes down to heat loss, radiators and hot water.
Some manufacturers make regular servicing by a qualified engineer a condition of their warranty. Where yours does, a regular service with us keeps that side in order, and every service is written up.
- Place
- Thong (DA12)
- Wider area
- Kent
- Costs
- £8,000–£16,000 (0% VAT on homes), before the grant
- Approvals
- F-Gas certified, NICEIC approved, MCS
- Quote
- Fixed after a survey or pictures
- Phone
- 07833 053749
- Reviewed
- 30 October 2026
What happens if it’s left?
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. Waiting rarely makes an air conditioning problem smaller.
Height, access and the distance between the indoor and outdoor units all affect the cost. Each of those is built into the quote, and the price is fixed before we start.
Why people in Thong choose us
- Enquiries answered the same working day
- Electrical work covered by our NICEIC approval
- Members of Checkatrade
- Fixed-price quotes after a survey or pictures
Take a look at how installs are priced or our accreditations and certificates.
Air source heat pumps in Thong: the local picture
Thong lies within about 3 miles of the sea. Coastal sites are worth mentioning at the survey, as salt air affects the outdoor unit and its fixings. About 78% of homes in Thong and the neighbourhoods around it date from 1945 to 1972, according to the Valuation Office Agency’s council tax figures, and the last census (2021) found about 64% of households in detached or semi-detached houses. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks. Houses typically have space for an outdoor unit and a hot water cylinder.
Period properties close to Church of St Peter and St Paul can suit a heat pump, though insulation and any heritage protection are checked first. Cobham College lies about 1.5 miles south. Owners of listed homes need consent before a heat pump is fitted, so it’s one of our first questions.
Thong is about 2 miles south-east of Gravesend, in Kent. From the centre of Thong to the outskirts, we cover air source heat pumps, from a single room to a whole building. Our list for Kent has 922 entries and Thong is among them. We also work in Bromley, around 17 miles away.
Not far from Thong, a recent job of ours was on Station Road, Orpington (BR6), about 13 miles west: installing three Daikin cassette units in the main office area and a wall-mounted unit in the client meeting room.
If your postcode is in DA12, you’re inside the area we cover. If you are just outside Thong, we cover Upper Ifield (1 mile east), Shorne Ridgeway (1 mile east), Shorne (1 mile east), Chalk (1 mile north) and Higham (2 miles east). Further out, we also cover Maidstone (11 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles west) and Sevenoaks (13 miles south-west).
What’s near Thong
We fit and service air conditioning in homes and premises around Shorne Woods Country Park and Thamesview School, among other places. The closest station to Thong is Sole Street station, about 2.2 miles south-west. A little further out are Rochester Castle (4.5 miles east) and Gravesham Museum (2.6 miles north-west). Green spaces nearby include Rede Common and Gad's Hill.
Questions from Thong
Will you come out to Thong?
We do. Villages and hamlets get the same service as the bigger towns. Send a few details and pictures, and we reply the same working day.
Will a heat pump in Thong need planning permission?
It comes down to the building and the spot chosen for the outdoor unit. The Thong, Shorne Conservation Area takes in the middle of Thong. The permitted development rules for heat pumps leave out listed buildings and stop outdoor units going on road-facing walls or roofs in conservation areas. Anything outside the rules needs an application, and we raise it with the local planning authority (for Thong, typically Gravesham council) first.
Can I do any of the installation myself?
No, not the refrigerant side. Under the F-gas rules, it must be done by qualified engineers from a certified company, and a new circuit is notifiable under Part P unless a registered electrician, such as a NICEIC approved contractor, does it.
How do you keep the place clean during the work?
Protection goes down first: dust sheets over floors and anything close to the work. Any drilling is agreed with you first, and we clear up the dust and offcuts before we leave.
Who is responsible for leak checks?
Whoever operates the equipment, together with the technicians who service it. Larger systems need regular checks: at least every 12 months from 5 tCO2e and every 6 months from 50 tCO2e. We can tell you which band your system falls into.
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.
Will my home qualify for the Boiler Upgrade Scheme?
Not every home qualifies, so we check. There’s one grant per property, you can’t get one to replace a low-carbon system, and hybrids are excluded, among other rules.
Places near Thong
What else we do in Thong
Pricing air source heat pumps in Thong
Your quote is based on your property. We consider:
- The size of the job
- The pipe route between the units
- What kind of system it is
A single unit or a whole estate, the quote is built the same way: what needs doing, how we get to it and what it needs. You’ll have a fixed price before any work starts, and the quote sets out the VAT.
Before you get in touch
Photos let us diagnose from a distance. Try to include:
- A few photos of the room and the wall the unit is on, or will go on
- The outdoor side of the property, including any roof or flat area
- Your consumer unit or fuse board
Photos are enough for some jobs; others need a visit first. Multi-room systems, commercial buildings and anything with a long or hidden pipe route are normally surveyed first. Either way, the quote is fixed before anything goes ahead.
Owner checks or an engineer?
For air conditioning, cleaning the indoor unit’s filters is the main job owners can do where the manufacturer’s manual explains how. With the power off, they lift out, can be vacuumed or rinsed and must be fully dry before they go back. For a heat pump, the main owner jobs are a clear outdoor unit and sensible control settings.
Good habits make our visits easier, not unnecessary. Clean filters and a clear outdoor unit help the system run as it should, but the inside of the units, the refrigerant and the electrics still need a qualified engineer.
A customer’s words
“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