Air conditioning in
Westminster
Installation, servicing and repair across Marylebone, Mayfair, Fitzrovia, Bayswater, Paddington, Maida Vale, St John's Wood and Pimlico. Forty to sixty minutes from N14. The congestion charge and the parking are planned into every Westminster job and paid by us, not added to your price.
- Free survey, usually within 48 hours
- Fixed written price before any work starts
- Permission position checked for your address first
Westminster. Photograph by Colin, CC BY-SA 4.0, via Wikimedia Commons.
Accredited, and fitting the brands you know
Finished jobs nearest Westminster
Our own installations, the closest to Westminster first, photographed on the day. Tap one for the full story.
Heat pump
NW1
Camden
Samsung monobloc air source heat pump
Levelled on packers on an existing tiled patio rather than bolted through it, so the tiling stays intact and the unit still sits dead flat.
View the project
Heat pump
W14
Holland Park
Vaillant aroTHERM plus 7 kW air source heat pump
A Holland Park house taken off gas in three days. The outdoor unit fits a narrow side passage, and the cylinder is only a short run away from it.
View the project
Heat pump
N1
Islington
Vaillant aroTHERM plus 7 kW air source heat pump
There was no room for it in the garden, so it went on the flat roof, stood on rubber blocks over a protective mat so the roof covering carries no point load.
View the project
Heat pump
E1
London
Vaillant aroTHERM plus 7 kW air source heat pump
Built around underfloor heating during a renovation: the old system out and the heat pump running in three days, set on anti-vibration feet on a level base against the fence.
View the project
Heat pump, solar and battery
N4
Finsbury Park
Vaillant air source heat pump with solar panels and a battery
The panels on the roof run the heat pump through the day and the battery carries it into the evening, so the house buys far less from the grid. The unit sits on raised feet against the rear wall.
View the project
Heat pump
NW10
Neasden
Vaillant aroTHERM plus air source heat pump
Set into the corner of the garden against the fence on a raised base, clear of the lawn, replacing a gas boiler over three days.
View the project
Heat pump
E9
Hackney
Vaillant aroTHERM plus air source heat pump
Fitted in three days as part of a renovation, replacing the gas boiler. It now runs the underfloor heating and the hot water, from a unit on blocks in the side return.
View the project
Heat pump
N8
Hornsey
Vaillant aroTHERM plus air source heat pump
The owner wanted the indoor equipment out of the living space, so it went into the loft. The outdoor unit has its own base in the garden. Three days, gas boiler out.
View the project
Air conditioning installation in Westminster costs 2,400 to 3,200 pounds for a single room, fitted and including VAT, and takes one day on site.
In Westminster the honest first question is not what it costs, it is whether the building will allow it. We give that answer for free, and sometimes it is no.
Read the full guide: 6 sections, about 3 minutes
The housing stock in Westminster, and what it means for the job
Westminster is the most controlled environment we work in. Conservation area coverage is very high, listed buildings are common rather than exceptional, and the great majority of residential property is flats in mansion blocks or in converted period houses. That means almost every job here needs freeholder or managing agent consent and planning permission, and the position of the outdoor unit is decided by what is invisible from the street rather than by what is convenient.
The typical Westminster installation
A typical Westminster job is a mansion block flat where the outdoor unit goes into a light well or onto a flat roof section, with a full licence pack and a planning application handled before any date is agreed.
How far we are from Westminster, and what we have finished nearby
Our own address is N14 5RH, which is 8.5 miles from the middle of Westminster in a straight line. A drive is longer than that and depends on the hour, so forty to sixty minutes from N14. The congestion charge and the parking are planned into every Westminster job and paid by us, not added to your price.
The three jobs of ours closest to Westminster, with the distance from the borough rather than from us, because that is the number that says whether we know the area:
- Camden NW1, heat pump: 2.2 miles from Westminster. Samsung monobloc air source heat pump.
- Holland Park W14, heat pump: 2.3 miles from Westminster. Vaillant aroTHERM plus 7 kW air source heat pump.
- Islington N1, heat pump: 3.3 miles from Westminster. Vaillant aroTHERM plus 7 kW air source heat pump.
What it costs here
| Job | System | Installed price |
|---|---|---|
| One bedroom | 2.5kW single split | £2,400 to £3,200 |
| One room in a flat | Consent pack included | £2,600 to £3,900 |
| Outdoor unit on a bracket | Rear wall or light well | £2,650 to £4,100 |
| Living room | 5kW single split | £2,750 to £3,850 |
| Two rooms | 2 unit multi-split | £4,300 to £5,800 |
| Pipework boxed in and made good | Where a surface run is not acceptable | +£180 to £600 |
| Annual service | Any make | £95 plus VAT |
Every figure on this site is an estimate built from the quotations we issued in 2026 and our own installation experience. It is not a quotation. The price you are given after the free survey is the price you pay.
Permission in Westminster
Conservation area coverage in Westminster is high, so the first check on any address here is whether the street sits inside one. Inside a conservation area you keep permitted development rights, but the outdoor unit cannot go on a wall or roof slope fronting a highway, which in practice means the rear. Where the property is a flat, planning permission is needed regardless of any of that. Your street, any Article 4 direction and the listed building register are the first three things we check, and the answer is in writing before you pay anything.
What the housing in Westminster means for permission
Westminster is a borough of flats: 90 per cent of homes, against 10 per cent houses. 70 per cent of all homes here are in purpose-built blocks, which in practice means a managing agent, a licence for alterations and a consent pack before anybody talks about dates. Nothing about that is unusual and none of it is quick. If you own a house here you are in the 10 per cent, and your job is the straightforward kind. The most common home in Westminster is a flat in a purpose-built block, 70 per cent, which usually means a managing agent, a licence for alterations and a plant position the building decides. Of the 21 boroughs we cover north of the Thames, Westminster has the second lowest share of houses.
| Home type | Share of Westminster | What it means here |
|---|---|---|
| Detached | 1% | Almost none here |
| Semi-detached | 2% | Almost none here |
| Terraced | 7% | No side access, so the rear or a bracket |
| Purpose-built flat | 70% | A large share here. Planning permission and freeholder consent, both |
| Converted flat | 18% | A high share. Two permissions, usually a smaller freeholder |
Shares of the 94,814 households counted in Westminster at the 2021 Census, table TS044, rounded. Percentages do not total 100 because homes in commercial buildings and temporary structures are counted separately.
Everything we fit in Westminster
90 per cent of homes in Westminster are flats, so most of our work here is cooling, servicing and repair. Where there is a house or a roof of your own, the same team fits heat pumps, solar and batteries.
Split air conditioning
One room or the whole house. Domestic and commercial.
See what it costs
Air source heat pumps
Replaces the gas boiler. We take the 7,500 pound grant off your invoice.
Price my heat pump
Servicing and repair
Book a service
Ducted air conditioning
The unit sits in the ceiling void. Only the grilles show.
How it is fitted
Solar panels
Get a roof survey
Battery storage
See if it pays
Your estimate
£2,400to£3,200
Supplied, fitted, commissioned and certificated. Includes VAT.
Send this on WhatsAppPrice it for your address
The same model the rest of the site uses. Tell us the postcode and the survey turns it into one fixed written price.
Last step: where do we send your written price?
Every figure on this site is an estimate built from the quotations we issued in 2026 and our own installation experience. It is not a quotation. The price you are given after the free survey is the price you pay.
Air conditioning in Westminster: common questions
How much does air conditioning cost in Westminster?
2,400 to 3,200 pounds for a single room, the same as anywhere else we work: we do not add the congestion charge or the parking. What is on top here is the freeholder and planning fees, which in central London are often the larger part of the total. A two-room system on one outdoor unit is typically 4,300 to 5,800 pounds, and three rooms 6,400 to 8,600 pounds.
Every price includes the units, installation, commissioning, electrical work and VAT. The fixed price comes after a free survey. There is a full breakdown on the cost page.
Do I need planning permission for air conditioning in Westminster?
It depends on which of the two you have. 90 per cent of homes in Westminster are flats, and a flat always needs planning permission for this work.
The section further down this page sets out what the housing stock here means in practice, and every condition is on the planning permission page. We check the conservation area boundary, any Article 4 direction and the listed building register for your exact address before quoting.
How quickly can you get to Westminster?
Forty to sixty minutes from N14. The congestion charge and the parking are planned into every Westminster job and paid by us, not added to your price. For a survey we usually offer something within 48 hours, and for a fault call we will tell you the day we can genuinely attend rather than promising one we cannot keep.
Do you install in flats in Westminster?
Yes. 90 per cent of homes in Westminster are flats, 70 per cent of them purpose-built and 18 per cent conversions, so it is a large share of what we do here. It takes two permissions rather than one: the freeholder's written consent and planning permission from the council.
We prepare the licence pack the managing agent will ask for at no charge, including the drawing, the sound data and the insurance. The order the two permissions are done in is what decides whether it is expensive, and there is a full sequence on the leasehold flats page.
Free survey anywhere in Westminster
Forty to sixty minutes from N14. The congestion charge and the parking are planned into every Westminster job and paid by us, not added to your price. Tell us the postcode and the rooms, and we will give you a written fixed price and an honest answer on permission.
Monday to Friday 9am to 7pm, Saturday 10am to 3pm, Sunday closed
Page updated