Kent · Heat pump installation
Heat pump installation in St Margarets, Kent
Air source heat pumps in St Margarets from an F-Gas certified company, with the manufacturer’s warranty terms explained on your quote. We reply to enquiries the same working day.
- Deciding on the outdoor unit position
- A boiler that is getting old
- Checking emitters for a heat pump
The process
Our engineers arrive at the time agreed with you and check the plan with you first. Dust sheets go down over floors and anything close to the work, and anything electrical is made safe before work starts. On site, it takes a few days for most air-to-water installations, with air-to-air systems often quicker. If a lane or gateway near St Margarets is tight for a van, let us know and we will plan for it.
- Step one is understanding the house, how it’s heated today and what you’d like to change.
- A heat loss survey works out how much heat each room needs, and we look at the radiators, the cylinder space and where the outdoor unit could go.
- We send a fixed-price quote that shows the equipment, the grant position and the VAT.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- Commissioning, MCS certification and a handover of the controls finish the job.
Getting ready for the visit
- Mention any parking restrictions near the property
- Make sure we can reach the consumer unit or fuse board
- Unlock any gate, garage or side passage we need
Get a fixed-price quote
Want a quote for air source heat pumps? Please phone 07833 053749 or use the quote form and tell us about the job. We will explain what we’d recommend and why, then send a fixed-price quote before you commit to anything.
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Air source heat pumps for homes and businesses in St Margarets
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. The work covers air-to-water heat pumps, air-to-air heat pumps and underfloor heating, and the jobs we see most are finding a place for the outdoor unit and questions about listed buildings or conservation areas.
Space for an outdoor unit is rarely an issue near St Margarets, so the design comes down to heat loss, radiators and hot water.
Think of the paperwork as the 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.
- Place
- St Margarets (DA4)
- Region
- Kent
- Accreditations
- F-Gas certified, NICEIC approved, MCS
- Pricing
- Fixed-price quote after a site survey
- Price guide
- £8,000–£16,000 before the grant, 0% VAT on homes
- Phone
- 07833 053749
- Updated
- 30 October 2026
Leave it or put it right?
Radiators that are too small for a heat pump’s lower flow temperature leave rooms cool. Checking and upsizing them as part of the installation avoids that. Booking before summer means the work in St Margarets is done before the hot weather.
No two properties are the same, so each one gets its own fixed-price quote. The system, the access, the pipe routes and the parts involved all make a difference.
Why choose AirCon Doctor in St Margarets
- We diagnose before we treat
- Clear warranty information from the manufacturer
- NICEIC approved electrical contractors
- One number for homes and businesses across London and the South East
Read our cost guide and our accreditations.
Nearby places to St Margarets
What else we do in St Margarets
Managing agents and facilities teams in St Margarets
When the building owner and the occupier are different, the lease or tenancy agreement normally sets out who maintains what. We are happy to deal with either side and send the records to whoever needs them.
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.
Air source heat pumps in St Margarets: the local picture
About 16 miles out from central London, St Margarets is part of the South East area we work across. VOA council tax data date about 50% of homes in the St Margarets area to the post-war years, 1945 to 1972, and about 60% of households live in detached or semi-detached houses, according to the 2021 Census. For homes of that age, the survey checks the insulation, the radiators and the hot water setup. Houses usually have space for an outdoor unit and a hot water cylinder.
Historic houses such as Lullingstone Castle, about 4.5 miles south-west, are a reminder that listed homes need consent before a heat pump goes in. Live in one of the older houses around Church of St Margaret of Antioch? Expect the survey to look closely at heat loss and at the building’s planning status.
St Margarets is about 3 miles south-east of Dartford, in Kent. Properties in St Margarets get the same service as everywhere we cover: a look at the job first, a fixed-price quote and written records at the end. Across Kent, we cover 922 places, St Margarets among them. You can also see our page for Bromley, about 11 miles away.
The closest recent job we can point to from St Margarets was on Station Road, Orpington (BR6), about 7 miles west: installing three Daikin cassette units in the main office area and a wall-mounted unit in the client meeting room.
Postcode districts we cover here: DA4. Places around St Margarets that are also on our list: South Darenth (1 mile south-west), Darenth (1 mile north), Green Street Green (1 mile east), Sutton at Hone (1 mile west) and Grubb Street (1 mile east). Further out, we also cover Maidstone (15 miles south-east), Dartford (3 miles north-west), Sevenoaks (9 miles south) and Gravesend (5 miles east).
Local landmarks in St Margarets
In St Margarets, that means homes and buildings near Darenth Country Park, Leigh Academy and Fox & Hounds pub, among other places. The closest station to St Margarets is Farningham Road station, roughly 1.1 miles south-west. Other landmarks nearby include Stone Museum of Geology (2.5 miles north) and Darent Valley Hospital (1.7 miles north). Not far away are Sawyers Lake and Wansunt Pit.
Safe owner checks
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 refrigerant lines can cause cold burns. A suspected leak is our job, not yours.
On air conditioning, the filters in the indoor unit are normally the one part owners can clean, if the manual says so. They come out, get a gentle clean and go back only when they’re dry. On a heat pump, the equivalent is keeping the outdoor unit clear and checking the controls.
Questions from St Margarets
Is St Margarets within the area you cover?
Yes. St Margarets is within the area we cover across London and the South East. A few pictures and the postcode are enough to get things started.
Will a heat pump in St Margarets need planning permission?
There’s no single answer: the building and the outdoor unit position decide it. Around 0 listed entries sit within 0.5 miles of central St Margarets. 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 St Margarets.
Can I do the refrigerant work myself?
Not the refrigerant work. The F-gas rules require certified companies and qualified engineers for it, 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?
Floors and furniture near the work are covered with dust sheets before any work starts, and the area is kept tidy throughout. At the end, we clear up and show you what we have done.
How much does an air source heat pump cost?
For air-to-water, the price is £8,000–£16,000 (0% VAT on homes) before any grant. Eligible homes in England and Wales can get £7,500 through the Boiler Upgrade Scheme, and we confirm eligibility before you commit.
Which brands do you work with?
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries, Hitachi and others. For new systems, we recommend a brand and model to suit the job and explain why.
Do you survey before quoting?
Yes. We always look before we price, either on a site survey or from pictures and details for simple jobs. A fixed-price quote follows.
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