Air conditioning in
Barnet
Installation, servicing and repair across Finchley, Whetstone, Totteridge, Mill Hill, Hendon, Golders Green, Hampstead Garden Suburb, New Barnet and High Barnet. This is home. Our address is in the borough, in N14, so the north of Barnet is on our doorstep and the far west is about half an hour.
- Free survey, usually within 48 hours
- Fixed written price before any work starts
- Permission position checked for your address first
Totteridge. Photograph by Philafrenzy, CC BY-SA 4.0, via Wikimedia Commons.
Accredited, and fitting the brands you know
Finished jobs nearest Barnet
Our own installations, the closest to Barnet first, photographed on the day. Tap one for the full story.
Heat pump
N12
North Finchley
Samsung air source heat pump with hydrobox
Heat pump and hydrobox both outside in the side passage, which keeps the whole system out of the house and leaves the cupboard the old boiler used.
View the project
Heat pump
NW7
Mill Hill
Vaillant aroTHERM plus air source heat pump
Gas boiler to heat pump in three days, with the grant approved within 48 hours. The unit stands on anti-vibration feet on a concrete pad close to the house, which keeps the pipe run short.
View the project
Heat pump
EN4
Barnet
Cascade pair of air source heat pumps
Two machines in cascade on a flat roof, flow and return in insulated copper with isolating valves on each leg, so one can be shut down and worked on while the other keeps the building warm.
View the project
Air conditioning
N11
New Southgate
Daikin multi-split condenser
Wall-mounted on brackets rather than stood on the ground, which is usually what a narrow side return leaves you, and the refrigerant lines dropped in a single trunked run.
View the project
Heat pump
EN4
Cockfosters
Vaillant aroTHERM plus 7 kW air source heat pump
Replaced an old gas boiler in three days. Raised on feet over a gravel bed at the side of the garden, so the defrost water drains away rather than pooling round the base.
View the project
Heat pump
N14
Southgate
Vaillant aroTHERM plus air source heat pump
A gas boiler out and a heat pump in over three days, a few streets from our own base. The unit stands beside the garden decking on anti-vibration feet, with the pipework taken along the fence line.
View the project
Heat pump
N22
Wood Green
Samsung monobloc air source heat pump
Stood on a levelled base built up out of the border rather than on soil, so the feet stay out of standing water and the unit does not settle out of level over a winter.
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 Barnet costs 2,400 to 3,200 pounds for a single room, fitted and including VAT, and takes one day on site.
Hampstead Garden Suburb is one of the most tightly controlled areas in London for external alterations. If your address is inside it, that is the first thing to establish rather than the last.
Read the full guide: 6 sections, about 3 minutes
The housing stock in Barnet, and what it means for the job
Barnet is really two boroughs for our purposes. North of the North Circular you get interwar semis and detached houses in Whetstone, Totteridge and Mill Hill, with side access and space, and those are straightforward jobs. South and west you get Hampstead Garden Suburb and the conservation areas around Golders Green and Hendon, where the appearance of the building is a live issue and the outdoor unit position needs real thought. Finchley adds a large stock of purpose-built 1930s flats, and those are the jobs where the freeholder question comes before everything else.
The typical Barnet installation
A common Barnet job is a two-unit multi-split serving a main bedroom and a loft conversion in a Finchley or Whetstone semi, with one outdoor unit on the rear elevation. Two days on site.
How far we are from Barnet, and what we have finished nearby
Our own address is N14 5RH, which is 3.2 miles from the middle of Barnet in a straight line. A drive is longer than that and depends on the hour, so this is home. Our address is in the borough, in N14, so the north of Barnet is on our doorstep and the far west is about half an hour.
The three jobs of ours closest to Barnet, with the distance from the borough rather than from us, because that is the number that says whether we know the area:
- North Finchley N12, heat pump: 1.1 miles from Barnet. Samsung air source heat pump with hydrobox.
- Mill Hill NW7, heat pump: 2.0 miles from Barnet. Vaillant aroTHERM plus air source heat pump.
- Barnet EN4, heat pump: 2.4 miles from Barnet. Cascade pair of air source heat pumps.
What it costs here
| Job | System | Installed price |
|---|---|---|
| One bedroom | 2.5kW single split | £2,400 to £3,200 |
| Double bedroom | 3.5kW single split | £2,550 to £3,500 |
| One room in a flat | Consent pack included | £2,600 to £3,900 |
| Two rooms | 2 unit multi-split | £4,300 to £5,800 |
| Three rooms | 3 unit multi-split | £6,400 to £8,600 |
| Heat pump, three bedroom house | After the £7,500 grant | £5,700 to £8,700 |
| 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 Barnet
Parts of Barnet are inside conservation areas and parts are not, so the answer genuinely depends on the street rather than on the borough. Outside a conservation area, a house installation that meets the Class G conditions needs no application at all. Inside one, the unit cannot face a highway. We look the street up against the council's boundary map and any Article 4 direction before we quote.
What the housing in Barnet means for permission
Barnet is close to evenly split: 52 per cent houses and 47 per cent flats. Most of our domestic work here is on houses and needs no planning application, provided it meets the Class G conditions. The flats, 37 per cent of homes in purpose-built blocks and 10 per cent in conversions, are the jobs that need a consent pack and a longer programme. The most common home in Barnet is a flat in a purpose-built block, 37 per cent, which usually means a managing agent, a licence for alterations and a plant position the building decides. By share of houses it is in the upper half of the 21 boroughs we cover north of the Thames.
| Home type | Share of Barnet | What it means here |
|---|---|---|
| Detached | 10% | The easiest, with a choice of elevations |
| Semi-detached | 27% | Usually a side return, the best position there is |
| Terraced | 15% | No side access, so the rear or a bracket |
| Purpose-built flat | 37% | A large share here. Planning permission and freeholder consent, both |
| Converted flat | 10% | Two permissions, usually a smaller freeholder |
Shares of the 148,917 households counted in Barnet 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 Barnet
Air conditioning is most of what we fit in Barnet. The same engineers fit heat pumps with the 7,500 pound grant, solar panels and batteries, and service any make.
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 paysInside Barnet, in more detail
These districts have a page of their own, with a finished installation from that postcode and what the local housing means for the job.
Whetstone N20
A job we finished there, the housing stock and the price.
North Finchley N12
A job we finished there, the housing stock and the price.
New Southgate N11
A job we finished there, the housing stock and the price.
Cockfosters and East Barnet EN4
A job we finished there, the housing stock and the price.
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 Barnet: common questions
How much does air conditioning cost in Barnet?
2,400 to 3,200 pounds for a single room in Barnet. Loft conversions, which are common here, usually need a 3.5kW rather than a 2.5kW unit. 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 Barnet?
Most likely not. 52 per cent of homes in Barnet are houses, and a house installation meeting the Class G conditions is permitted development.
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 Barnet?
This is home. Our address is in the borough, in N14, so the north of Barnet is on our doorstep and the far west is about half an hour. 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 Barnet?
Yes. 47 per cent of homes in Barnet are flats, 37 per cent of them purpose-built and 10 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 Barnet
This is home. Our address is in the borough, in N14, so the north of Barnet is on our doorstep and the far west is about half an hour. 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