Surrey · Air conditioning installation
Air conditioning installation in Old Malden
Air conditioning installation, for Old Malden and the surrounding area. Call for a fixed-price quote; we reply the same working day.
- A study or office that overheats during the day
- A portable unit with a hose out of the window
- Expensive direct electric heating
Air conditioning in Old Malden, done properly
Any installation we do in Old Malden follows the same process as everywhere else we work: survey, fixed-price quote, a neat installation, full commissioning and the F-Gas paperwork. The price is fixed up front and the records are handed over at the end. Most split systems we fit in Old Malden are reversible: in heating mode they work as an air-to-air heat pump, so a system bought for summer earns its keep in winter too.
In a smaller place like Old Malden, most installs are in houses and cottages, often with gardens, which usually leaves room for an outdoor unit. The wall type and how the electrics reach the unit are often the main things to check.
AirCon Doctor is an F-Gas certified company and NICEIC approved for electrical work, MCS certified for heat pumps and a Checkatrade member. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Where
- Old Malden (KT19, KT4, KT5)
- Region
- Surrey
- Price
- Fixed-price quote after a site survey
- Accreditations
- NICEIC and F-Gas
- Guide price
- One room: £1,200–£2,200 + VAT
- Phone
- 07833 053749
- Last updated
- 30 October 2026
Your questions about air conditioning in Old Malden
Will you come out to Old Malden?
Yes. Old Malden is within the area we cover across London and the South East. Visits to smaller places are planned so the engineer arrives with what the job needs.
Is Old Malden in your area for air conditioning?
Yes, Old Malden is within the area we cover. To start, ring 07833 053749 or use the quote form with a few pictures.
Will I need planning permission?
Not always. On a house, air-to-water heat pumps and, since 2025, air-to-air systems that heat as well as cool can be permitted development if they meet the conditions. Permission is more likely to come up for cooling-only units, listed buildings, flats and road-facing positions in conservation areas and the survey picks it up. This is general information, not legal advice.
Why does F-Gas certification matter?
The law says any company working on equipment containing F gas has to be certified, and each engineer needs the right qualifications too. It means the refrigerant in your system is handled legally.
Do you protect the property while you work?
Floors and furniture near the work are covered with dust sheets before any work starts, and we tidy up as we go. Before we leave, we clear up and run through the work with you.
How long does air conditioning installation take?
A single-room system is usually fitted in a day. Multi-room and ducted systems take longer, depending on the pipe routes and access, and we tell you how long on the quote.
Will you need to do electrical work?
Most systems need their own supply from the consumer unit. Adding a new circuit is notifiable building work under Part P unless it’s done by a registered competent person, and we’re NICEIC approved, so we can install and certify it.
Safe owner checks
There are a few things you can safely do yourself: keeping the outdoor unit clear, checking the mode and set temperature, and the routine cleaning in the manual. Anything inside the units, the electrics and the refrigerant is engineer’s work.
Write down what you notice: error codes, noises, drips, smells or a drop in performance. It helps us diagnose quickly, and a photo or a short video of the display is even better.
Places near Old Malden
Also in Old Malden
What we do, step by step
Where something has to be switched off during the work, we agree it with you first, so you can plan around it. For businesses, we can normally work room by room or zone by zone. The work takes a day for most single-room installations, with multi-split, ducted and cassette systems taking longer. Photos of the existing unit and its label help with repairs and servicing near Old Malden.
- First the diagnosis: a survey of the rooms, the walls, the outside and the electrics.
- Next, a recommendation for each room and a fixed price.
- Then the work: units up, pipes and drain run, and a new circuit where needed.
- Testing: the circuit is pressure tested and evacuated before the refrigerant is released.
- Finally, the clean bill of health: commissioning, the controls explained and your paperwork handed over.
Getting ready for the visit
- Let us know where the consumer unit is
- Let us know if the units are on a roof, a high wall or in a locked area
- Clear the space around the indoor unit, or where it will go
Ask for a quote
For a fixed-price quote, call 07833 053749 or email us with the address and a few details about the rooms or units involved. Photos help a lot. You’ll hear back from us the same working day.
Read more
When it’s something else
To be straight with you, some problems need a different answer:
- Draughts and missing insulation
- An installation that needs consent nobody has given yet
- A ventilation problem rather than a temperature problem
Not sure which it is? You can call 07833 053749 or use the quote form and we will tell you honestly.
Where we work
- Air-to-air heat pumps
- VRF systems
- Ducted systems
- Wall-mounted split systems
- Multi-split systems
- Ceiling cassettes
Common problems we fix in Old Malden
Most overheating comes from heat gained through the day. Sun through large windows, roof lights and glazed doors is the biggest source in many rooms, and the heat lingers long after the sun has moved round.
These are the situations we see most often:
- Bedrooms and offices that overheat in summer
- Fans and portables that don’t keep up
- Not knowing which system, size or brand to choose
Close to Tolworth station? A small study or box room used for work can typically be cooled with a single indoor unit.
What your quote should include
- What paperwork you’ll receive afterwards
- The make and model of any parts or equipment being quoted
- Whether they hold F-Gas company certification, not just individual qualifications
What an install looks like in Old Malden
About 59% of homes in the Old Malden area were built between the wars, according to VOA council tax data. Homes of that age typically have cavity or solid brick walls, and we check which before planning the pipe route. Old Malden is about 11 miles from central London, well within the area we cover from our base in East Grinstead.
Homes near Parish Church of St Mary the Virgin are a good example of where we look up the heritage status of the building before fixing anything to it.
Old Malden is about 2 miles north-west of Ewell, in Surrey. Wherever you are in the KT19 postcode area, we cover air conditioning. In Surrey alone we list 395 places and Old Malden is among them. For properties nearby, see our Croydon page, about 8 miles away.
Not far from Old Malden, a recent job of ours was on Ashley Road, Epsom (KT18), about 3 miles south: installing three Samsung cassette units in the dining area and a dedicated wall-mounted unit in the bar. Read more
We work across KT19, KT4 and KT5 and the streets around it. Curtis Road, Rowden Road and Grafton Road and the roads off them are all inside our area. We also cover Worcester Park (1 mile east), Tolworth (1 mile north-west), Stoneleigh (1 mile south-east), Berrylands (1 mile north-west) and Chessington (2 miles south-west). Further out, we also cover Woking (14 miles west), Epsom (3 miles south), Horley (14 miles south) and Redhill (10 miles south-east).
Local landmarks in Old Malden
We fit and service air conditioning in homes and premises around Richard Challoner School, The Plough Inn Public House and Hogsmill LNR, among other places. Old Malden’s nearest station is Tolworth station, about 0.5 miles west of the centre. Other landmarks nearby include Bentall Centre (3 miles north-west) and Tolworth Hospital (0.9 miles west). Not far away are The Lake and Kingston Hill Road area.
From one of our customers
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath