Kent · Air conditioning installation
Air Conditioning in Kemsing
For air conditioning in Kemsing, one call is all it takes, from the first look to sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- A study or office that overheats during the day
- An ageing air conditioning system near the end of its life
- A room that’s unbearable on warm days
What we are called out for in Kemsing
Some people come to us for heating rather than cooling. Old direct electric heaters turn electricity straight into heat, while a heat pump moves heat in from the outside air, so it gives out more heat than the electricity it uses. Most modern split systems work this way.
The things we’re asked about most include:
- Fans and portables that do not keep up
- A system on old refrigerant that’s due for replacement
- A business premises that overheats in summer
About 2.8 miles south stands Knole House. Listed homes in any area need consent first, so tell us if yours is one.
Before booking anyone
- What happens if the job turns out to be different on the day
- Whether a new circuit is included and who certifies it
- Why the equipment they’re quoting suits the job
Air conditioning in Kemsing
A single-room split system is typically £1,200–£2,200 + VAT, while a two-room multi-split is typically £2,800–£4,500 + VAT and three to five rooms £4,500–£8,500 + VAT. Supply, installation, commissioning and F-Gas documentation are all included, with commercial and VRF systems priced after a survey. Air con, air conditioning, a split system: whatever you call it, it’s the job we do every week across Kent.
A cottage and a newer house near Kemsing are very different jobs. Thick walls, low ceilings and beams need care with pipe routes, and if the home is listed, consent comes before any work.
The records are your system’s health record: what was fitted or found, what was done and when. If anything goes wrong later, it helps the next engineer and the manufacturer and it’s worth keeping safe.
- Place
- Kemsing (TN15)
- Region
- Kent
- Approvals
- NICEIC approved, F-Gas certified
- Typical price
- £1,200–£2,200 + VAT for one room
- Response
- On the working day you ask
- Pricing
- Fixed-price quote after a site survey
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
What an install looks like in Kemsing
About 43% of homes in and around Kemsing date from 1945 to 1972, according to Valuation Office Agency council tax records, and Census 2021 figures found about 82% of households in detached or semi-detached houses. We check the wall construction on homes of that age, as it decides how the pipework goes through. With homes like that, finding a sensible outdoor unit position is rarely hard, and a multi-split lets two or more rooms run off it.
Living close to Church of St Mary? Some older properties in parts like that are protected, and the survey finds out whether yours is.
Kemsing is about 2 miles north-east of Sevenoaks, in Kent. We cover Kemsing for air conditioning, along with the rest of Kent. Our list for Kent has 922 entries, and Kemsing is one. The nearest of our city pages is Bromley, around 11 miles from Kemsing.
Not far from Kemsing, a recent job of ours 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. See the job
Here we cover the TN15 postcode area. High Street, Copperfields Walk and Childsbridge Lane and the roads off them are all inside our area. We also cover the places around Kemsing: Cotman's Ash (1 mile north-east), Heaverham (2 miles east), Woodlands (2 miles north-east), Romney Street (2 miles north) and Knatts Valley (2 miles north-east). We also work in nearby towns such as Maidstone (14 miles east), Dartford (9 miles north), Royal Tunbridge Wells (12 miles south) and Gravesend (11 miles north-east).
What’s near Kemsing
In Kemsing, that means homes and buildings near St Michael's Preparatory School, Knole Academy and Kemsing Down and the streets around them. Kemsing’s nearest station is Otford station, about 1 mile north-west. Other landmarks nearby include Kemsing Castle Bank (0.5 miles east) and Otford Heritage Centre (1 mile west). Green spaces nearby include Dryhill Nature Reserve.
Honest limits
It’s worth knowing the limits before booking:
- Stuffy rooms that need fresh air rather than cooling
- An installation that needs consent nobody has given yet
- Heat loss through very poor insulation (a system will heat the room, but insulation is a separate job)
Not sure which it is? You can give us a ring on 07833 053749 or email us and we’ll tell you honestly.
What we work on in Kemsing
- Ducted systems
- Wall-mounted split systems
- Multi-split systems
- Air-to-air heat pumps
- VRF systems
- Ceiling cassettes
What affects the quote in Kemsing
The diagnosis comes before the price. We look at:
- How far the pipework has to run, and where
- What electrical work the job needs
- The type of system, from a single split to a larger system
Several rooms, units or sites on one quote can make for a more efficient booking. Mention every unit or room you need covered, and you will get one fixed price.
Before you get in touch
To speed up the quote, send us:
- Where the property is and what kind of building it is
- A close-up of the unit’s label showing the model number
- Your consumer unit or fuse board
Photos are the fastest route to a quote: 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.
Kemsing questions
Will you come out to Kemsing?
Yes. Kemsing is within the area we cover across London and the South East. Visits to smaller places are planned so the engineer arrives with what the job needs.
Is planning permission needed for air conditioning in Kemsing?
It depends on the property. The centre of Kemsing is in a conservation area. A system that heats as well as cools may not need an application on a house, provided it stays within the permitted development limits. Cooling-only units get no such allowance, and listed buildings and road-facing positions in conservation areas need more care. We speak to the local planning authority (for Kemsing, normally Sevenoaks council) when it matters.
Can you look at a system you didn’t fit?
Yes. We start with a proper look and tell you honestly what we find, including anything about the original installation that needs putting right. Any work is priced before it goes ahead.
How soon will you get back to me?
On the same working day you contact us. After that, we agree a survey, diagnosis or installation date that suits you, and you get a fixed price before any work goes ahead.
Can we book visits on a schedule?
Yes. Send details of the systems and how they’re used and we will propose a schedule and quote for it. Leak checks required by the F-gas rules can be built in for larger systems.
Will skipping a service affect the warranty?
That depends on the brand. Where servicing is a condition, a missed service could give the manufacturer grounds to refuse a claim and we’ll tell you what your brand asks for.
How much is air conditioning for one room?
A single-room split system is typically £1,200–£2,200 + VAT. Two rooms on a multi-split are typically £2,800–£4,500 + VAT, and three to five rooms £4,500–£8,500 + VAT, including supply, installation, commissioning and F-Gas documentation. You get a fixed price before any work starts.
How it works
Refrigerant work is done by qualified engineers working for an F-Gas certified company, and electrical work is done by us as NICEIC approved contractors. On the day, both are in the same hands. The work takes about a day for a single-room system, longer for multi-room and ducted systems. Around Kemsing, access is typically simple, though gates and garden access are worth mentioning.
- First the diagnosis: a survey of the rooms, the walls, the outside and the electrics.
- Then the prescription: the right system and size for each room, on a fixed-price quote.
- The treatment: units fitted, pipework and drain routed, and the electrics installed.
- Checks: a pressure test for leaks, then a vacuum to clear moisture.
- Finally, the clean bill of health: commissioning, the controls explained and your paperwork handed over.
Before we arrive
- Unlock any gate, garage or side passage we need
- Move furniture away from the wall where we’ll be working
- Tell us about access, such as roof hatches, high walls or locked plant areas
Ask for a quote
Every quote shows the VAT clearly, with the rate that applies to your job. Homes, businesses and different kinds of work can be treated differently for VAT, so we confirm it on the quote. To get one, phone 07833 053749 or fill in the contact form.
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From one of our customers
“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