Air conditioning in
Walton-on-Thames KT12
Interwar and post-war houses with generous gardens, a lot of conservatories and garden rooms, and the noise question that comes with both. From £2,400 fitted, and we work in KT12 regularly.
Accredited, and fitting the brands you know
A job we did in KT12
Walton-on-Thames KT12
Samsung air source heat pump
Sited round the corner from the conservatory glazing rather than beside it, because a fan discharging at glass is the most common cause of a noise complaint about a unit that is running perfectly.
We install, service and repair air conditioning across Walton-on-Thames KT12. 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 unit serving a glazed rear room or a principal bedroom, with the condenser round the corner from the glazing rather than beside it. That siting decision is the point of the photograph above.
What the housing in Walton-on-Thames means for the job
KT12 is Walton, Hersham and the riverside, and the housing is mostly interwar and post-war detached and semi-detached with substantial gardens. Outdoor positions are rarely a constraint and pipe runs are short. What is distinctive here is the number of conservatories, garden rooms and glazed rear extensions, which are the rooms people actually want cooled and also the hardest rooms to cool, because glass gains heat far faster than brick. The riverside properties add a flood-zone consideration that is worth raising at the survey rather than after.
Worth knowing before you book. A fan discharging at a conservatory or a glazed extension is the single most common cause of a noise complaint about a machine that is running perfectly. Moving it two metres round a corner at the survey costs nothing and solves it permanently.
Nearest postcodes we also cover: Kingston upon Thames KT1, 5.4 miles; Epsom KT19, 7.0 miles; Richmond TW9, 7.6 miles.
Walton-on-Thames sits in Surrey. All the areas we cover.
More of our work near KT12
The finished jobs closest to Walton-on-Thames, nearest first, after the one above.
Heat pump
KT1
Kingston upon Thames
Bosch air source heat pump
Installed on a flat roof on a raised frame, so the roof covering carries no point load and rainwater still runs freely underneath.
View the project
Heat pump
KT19
Epsom
Samsung air source heat pump
Set into a planted border on a hard base, far enough off the wall for the service access the manufacturer asks for and close enough that the pipe run stays short.
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Heat pump
TW9
Richmond
Air source heat pump
Flow and return brought up the wall as one insulated pair in a single clipped run, which is the difference between pipework that looks designed and pipework that looks added.
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Solar
TW8
Brentford
Roof-mounted solar array
Panels on a flat roof carried on tilted frames rather than laid flat, which is what brings a London flat roof close to the yield of a south-facing pitch.
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Heat pump
TW8
Brentford
Vaillant aroTHERM plus 7 kW with a 300-litre cylinder
Outside, the unit stands against the side wall on its feet. Inside, a 300-litre uniSTOR cylinder, wireless controls and a 25-litre buffer vessel.
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Heat pump
SW19
Wimbledon
Vaillant twin-fan air source heat pump
A larger twin-fan machine raised onto a brick plinth, which lifts the coil clear of leaf litter and puts the fans above the level a low fence would reflect.
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Heat pump
W13
West Ealing
Vaillant aroTHERM plus air source heat pump
An aroTHERM plus on a poured pad against the boundary fence, with the drain point brought out through the pad so the defrost water has somewhere to go.
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Heat pump
W5
Ealing
Samsung 12 kW high temperature air source heat pump
A two-zone system with a 300-litre cylinder and a buffer tank, 15 metres of pipework run underground to the unit on its own concrete base, and radiators replaced where they were too small for a heat pump.
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Your estimate
£2,400to£3,200
Supplied, fitted, commissioned and certificated. Includes VAT.
Send this on WhatsAppPrice a Walton-on-Thames 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 KT12
Cooling is most of what we do in Walton-on-Thames. 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 Walton-on-Thames: common questions
Can you cool a conservatory?
Yes, and it needs more output than the floor area suggests because glass gains heat at several times the rate of a wall. The honest answer is that a conservatory with single-skin polycarbonate above it will always be fighting.
Will the neighbours hear it?
A modern unit at low fan speed is quieter than a fridge at a couple of metres. What makes one audible is reflection: a fan pointed at glass, a fence or a flank wall a metre away.
Why a unit sounds louder than it is, and what to do about it.
Is KT12 inside your area?
Yes. Elmbridge is normal work for us and the photograph on this page is a Walton installation.
No travel surcharge. Survey dates outside London are batched, so book with a little notice.
Book a free survey in Walton-on-Thames
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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