Surrey · Air conditioning installation
Sunbury-on-Thames air conditioning
Air conditioning, for Sunbury-on-Thames and the surrounding area. Ask us for a fixed-price quote, and we will reply the same working day.
- A room that is unbearable on warm days
- A system on old refrigerant that’s due for replacement
- Too many options and no clear advice
Signs you need air conditioning in Sunbury-on-Thames
Loft rooms and top floors tend to suffer most. Heat comes in through the roof and rises from the rest of the building, which is why a loft bedroom can still be warm at bedtime.
Common reasons people call us are:
- A business premises that overheats in summer
- Rooms heated by plug-in heaters
- A loft room or top floor that bakes in summer
If your home is in one of the older streets near St Saviour, it’s worth checking whether it’s listed or in a conservation area before an install.
Comparing quotes
- Whether they looked at the job before pricing it
- Whether the electrical work is done by a registered contractor, such as NICEIC approved
- Whether testing, commissioning and paperwork are included
Air conditioning for homes and businesses in Sunbury-on-Thames
Most modern split systems run as heat pumps, so they can heat as well as cool. The Energy Saving Trust recognises that air-to-air heat pumps often go by the name air conditioning, and a well-chosen system can earn its keep all year round. For air conditioning in Sunbury-on-Thames, you get one team and one number from survey to sign-off, wherever you are in Surrey.
Most houses around Sunbury-on-Thames have a side or back wall, or a patch of ground, where the outdoor unit can go. We keep it away from bedroom windows next door and run the pipework as neatly as we can, either hidden inside or boxed in trunking outside.
Refrigerant work is written up in the F-Gas records: the work carried out, the refrigerant involved and the quantities. File them with the system’s paperwork, as a manufacturer or a future engineer may ask to see them.
- Location
- Sunbury-on-Thames (TW16)
- Region
- Surrey
- Pricing
- Fixed-price quote after a site survey
- Approvals
- NICEIC and F-Gas
- Prices
- £1,200–£2,200 + VAT for one room
- Telephone
- 07833 053749
- Page updated
- 30 October 2026
Different systems, different jobs
Pipework and condensate drains
Between the units run the refrigerant pipes, the control cable and the condensate drain. The route is agreed before any drilling and kept as tidy as the building allows.
Ceiling cassettes
Ceiling cassettes fit into the ceiling and push air out in several directions and they’re a common choice for offices, shops and larger rooms.
Air conditioning in Sunbury-on-Thames: local notes
VOA council tax data date about 43% of homes in and around Sunbury-on-Thames to the post-war years, 1945 to 1972. We check the wall construction on homes of that age, as it decides how the pipework goes through.
Close to Sunbury station? A small study or box room used for work can normally be cooled with a single indoor unit.
Sunbury-on-Thames is about 7 miles south of Hayes, in Surrey. From the centre of Sunbury-on-Thames to the outskirts, we cover air conditioning, from a single room to a whole building. Our area takes in 395 places across Surrey, large and small. We also work in Guildford, around 13 miles away.
Not far from Sunbury-on-Thames, a recent job of ours was on Queens Road, Weybridge (KT13), about 3 miles south-west: installing a full-house Mitsubishi Electric multi-split system covering five bedrooms, the study, the sitting room and the kitchen-living area: eight indoor units in total served by two outdoor units. Read more
Getting to Sunbury-on-Thames is easy by the A244 and A308. We cover homes and businesses on Station Road, The Ridings and Ravenscourt and the roads around them. We also cover the places around Sunbury-on-Thames: Upper Halliford (1 mile south-west), Charlton (1 mile west), Ashford Common (1 mile north-west), Hounslow (1 mile north) and Littleton Common (1 mile west). Further out, we also cover Guildford (13 miles south-west), Woking (10 miles south-west), Camberley (15 miles south-west) and Epsom (8 miles south-east).
What’s near Sunbury-on-Thames
In Sunbury-on-Thames, that means homes and buildings near Sunbury Manor School, The Three Fishes Public House and Sunbury Park and the streets around them. Sunbury-on-Thames has its own railway station: Sunbury station. Nearby you’ll also find Kempton Steam Museum (1 mile north-east) and No. 2 New Zealand General Hospital (2 miles south). Open spaces near Sunbury-on-Thames include St Ann's Hill and Kempton Park Reservoirs.
What happens on the day
The first job on site is protection: dust sheets over floors and furniture near the work and nothing is moved without asking you. Then the electrics are made safe and the work begins. It takes about a day for a single-room system, longer for multi-room and ducted systems, and we clear up before we go. In a town like Sunbury-on-Thames, parking is typically straightforward, so the main questions are access and timing.
- We survey the rooms and the outside of the property, or work from pictures and details for simple jobs.
- The quote is fixed and shows the equipment, where each unit goes and what’s included.
- Brackets go on, the units are hung and the refrigerant lines, cable and drain are routed between them.
- We connect the supply, pressure test the pipework and evacuate it before the refrigerant is released.
- The system is commissioned and checked in every mode, and we hand over the controls, F-Gas records and warranty information.
Preparing for the visit
- Keep pets out of the rooms we’re working in
- Clear access to the fuse board
- Clear the space around the indoor unit, or where it will go
Get a fixed-price quote
For air conditioning in Sunbury-on-Thames, phone us on 07833 053749 or use the quote form. Tell us what kind of property it is and what you’d like done, and send a few pictures if you can. Enquiries get a reply the same working day.
Related advice
Places near Sunbury-on-Thames
Other services in Sunbury-on-Thames
Safe owner checks
There are a few things you can safely do yourself: keep the outdoor unit clear of leaves, plants and clutter, check the settings and the remote, and follow the cleaning the manual describes. Opening up the units, the electrics and the refrigerant circuit are a job for us.
Leave the units and pipework where they are. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrics need care too. Ask us to quote for a move instead.
Common questions in Sunbury-on-Thames
What’s the best way to get a price for air conditioning in Sunbury-on-Thames?
Use the quote form, or email, with a description of the job. Simple jobs can be priced from photos; otherwise we arrange a site survey and then give you a fixed-price quote.
Is planning permission needed for air conditioning in Sunbury-on-Thames?
The answer turns on the property and where the outdoor unit would sit. Around 6 listed entries sit within 0.5 miles of central Sunbury-on-Thames. An air-to-air system used for heating as well as cooling can be permitted development on a house if it meets the conditions, but a cooling-only unit is not covered, listed buildings need consent and conservation areas restrict outdoor units facing a road. Where needed, we check with the planning department at Spelthorne council, typically the authority for Sunbury-on-Thames.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for breakdowns that cannot wait. Call 07833 053749 and tell us what’s happened.
How long does it take to fit air conditioning?
Allow anything from a day for one room to several days for a multi-room or ducted system. The survey tells us how long your installation will need, so you can plan around it.
Whose job is it to check the system for leaks?
The operator of the equipment, working with qualified engineers. Systems below 5 tCO2e fall outside the set leak check intervals, while larger ones need checks at least every 12 months, or every 6 months from 50 tCO2e. We will work out which band applies to yours.
Do you protect the property while you work?
We start with protection: dust sheets over floors and anything close to the work. Holes and fixings are agreed with you, and we clean up afterwards when we finish.
How quickly will you reply?
The same working day. After that, we agree a survey, diagnosis or installation date that suits you, and you get a fixed price before any work goes ahead.
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