Air conditioning
in North Finchley N12
Interwar semis off the A1000, Victorian terraces towards Woodhouse Road, and a large stock of purpose-built 1930s flats where the freeholder decides.
From £2,400 fitted. We work in N12 regularly.
Brands we work with
We install, service and repair air conditioning across North Finchley N12. A single room is £2,400 to £3,200 fitted and a whole house is £8,400 to £11,300, with a free survey and a written price that does not change.
A single 3.5 kW unit in a first-floor bedroom of a semi, condenser in the side return. One day. The second most common is the same house with a second unit added for a loft conversion.
A job we did in N12
North Finchley N12
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.
What the housing in North Finchley means for the job
North Finchley is dominated by interwar semi-detached housing, which is close to ideal: a side return for the outdoor unit, a straightforward run to the bedrooms above, and enough distance to a boundary that permitted development is rarely in doubt. Towards Woodhouse Road and the Finchley Central end there are Victorian terraces where the rear elevation is the only realistic position. The purpose-built 1930s and 1950s blocks along and off the High Road are a different job again: structurally easy, and entirely dependent on what the freeholder's alterations policy says.
Worth knowing before you book. Side returns in N12 are often used as the only route to the garden. Where the unit goes matters for living with it, not just for fitting it, and we would rather move it a metre at the survey than after.
Price a North Finchley installation
Our own rates, from the quotations we issued this year. Rooms first, because it is the biggest lever.
£2,400to£3,200
Supplied, fitted, commissioned and certificated. Includes VAT.
Every figure on this site is an estimate based on published UK market ranges and our own installation experience. It is not a quotation. The price you are given after the free survey is the price you pay.
Everything we do in N12
Cooling is most of it. Since 2026 the same machine also heats, and we fit the renewables side too.
Installation
Wall units, ceiling cassettes and concealed ducted, one room or a whole house.
Servicing
Annual service from £95 plus VAT, any make, whoever fitted it.
Repair
£89 plus VAT to diagnose, waived if we do the work.
Heating too
The same unit is an air-to-air heat pump. It heats at three to four times the efficiency of an electric heater.
North Finchley sits in Barnet, and the borough page covers the rest of it. All the areas we cover.
Air conditioning in North Finchley: common questions
Will the outdoor unit fit in my side return?
In an interwar semi, nearly always. The unit is about the size of a large suitcase on its side and it needs clear air in front of the coil, not a large footprint.
The measurement that matters is the distance to the boundary rather than the width of the passage, because that is the one permitted development cares about.
Is a loft conversion different?
It needs more cooling than the floor area suggests, because a converted loft sits directly under the roof and gains heat all afternoon.
Do you cover the rest of Barnet?
All of it. The Barnet page covers the whole borough, including Hampstead Garden Suburb, where external alterations are tightly controlled.
Our address is in N14, inside the borough, so most Barnet jobs are within twenty minutes.
Book a free survey in North Finchley
A surveyor measures the rooms, checks the electrics and the outdoor position, and writes a fixed price. No cost, no obligation, no salesperson.
Monday to Friday 9am to 7pm, Saturday 10am to 3pm, Sunday closed
Or leave your number