Air conditioning in
Winchmore Hill N21
Edwardian and 1930s houses with real plots, which makes this one of the easiest places in London to install properly. The conservation area around the Green is the exception. From £2,400 fitted, and we work in N21 regularly.
Accredited, and fitting the brands you know
A job we did in N21
Winchmore Hill N21
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.
We install, service and repair air conditioning across Winchmore Hill N21. 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.
Two units on one outdoor condenser, serving a main bedroom and a loft conversion, outdoor unit at ground level in the side return. Two days on site.
What the housing in Winchmore Hill means for the job
Winchmore Hill is the kind of housing stock that makes an installer's job straightforward: Edwardian and interwar semis and detached houses with side access, gardens deep enough that an outdoor unit is nowhere near a boundary, and plenty of room for a proper base. Rooms are generous, which usually means a 3.5 kW unit where a smaller house would take 2.5 kW. The exception is the conservation area around Winchmore Hill Green and the older streets near it, where anything visible from the road needs thinking about first.
Worth knowing before you book. Loft conversions are common here and they are consistently under-sized by installers working off floor area alone. A converted loft under a slate roof gains heat all afternoon and needs the next unit size up.
Nearest postcodes we also cover: Palmers Green N13, under a mile; Southgate N14, 1.2 miles; Enfield Town EN1, 1.7 miles.
Winchmore Hill sits in Enfield, and the borough page covers the rest of it. All the areas we cover.
More of our work near N21
The finished jobs closest to Winchmore Hill, nearest first, after the one above.
Heat pump
N21
Winchmore Hill
Mitsubishi Ecodan air source heat pump
An Ecodan stood off the boundary fence far enough that the fan discharge is not bouncing straight back off it, which is what makes a badly sited unit sound louder than it is.
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.
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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.
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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
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.
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Heat pump
EN3
Enfield
Samsung monobloc air source heat pump
Set tight against the flank wall on anti-vibration feet, where it takes up none of the usable garden and the pipe run to the cylinder stays short.
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Heat pump
EN3
Enfield
Vaillant aroTHERM plus 7 kW air source heat pump
Stood on rubber anti-vibration blocks on the existing patio slabs rather than on a new base, against the rear fence and beside the drainage the house already had.
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Your estimate
£2,400to£3,200
Supplied, fitted, commissioned and certificated. Includes VAT.
Send this on WhatsAppPrice a Winchmore Hill 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 N21
Cooling is most of what we do in Winchmore Hill. 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 Winchmore Hill: common questions
I am in the conservation area near the Green. Can I still have it?
Usually yes, but not under permitted development if the unit would be visible from the road. That means a planning application rather than a refusal.
We survey with that in mind and design for a position that avoids the problem where one exists. The conditions are here.
Can one outdoor unit serve the whole upstairs?
Up to a point. One condenser can run several indoor units, but every room still needs its own unit and the condenser has to be sized for all of them running at once.
The difference between a single split and a multi-split, and what each costs.
How close are you?
We are in N14, so N21 is about five minutes. This is the closest work we do and it is usually the quickest to book.
Surveys here are often the same week.
Book a free survey in Winchmore Hill
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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