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, and we work in N12 regularly.
Accredited, and fitting the brands you know
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.
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.
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.
Nearest postcodes we also cover: Whetstone N20, 1.5 miles; New Southgate N11, 1.7 miles; Southgate N14, 2.7 miles.
North Finchley sits in Barnet, and the borough page covers the rest of it. All the areas we cover.
More of our work near N12
The finished jobs closest to North Finchley, nearest first, after the one above.
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
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
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
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.
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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.
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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.
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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
Heat pump and solar
N21
Winchmore Hill
Air source heat pump with roof-mounted solar
The panels sit across the rear pitch and the heat pump at the side of the house, which is the pairing that lets the pump run on its own generation through the middle of the day.
View the project
Your estimate
£2,400to£3,200
Supplied, fitted, commissioned and certificated. Includes VAT.
Send this on WhatsAppPrice a North Finchley installation
Our own rates, from the quotations we issued this year. Rooms first, because it is the biggest lever.
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.
Everything we fit in N12
Cooling is most of what we do in North Finchley. The same engineers fit heat pumps with the 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 paysAir 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
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