Part of WDI Group (Surrey) Ltd
Air Conditioning Installation in Carshalton, Sutton & Wallington
Cooling in summer, heating in winter. We install wall-mounted and multi-split systems in bedrooms, loft conversions, kitchen extensions, garden rooms, offices and shops across the SM postcodes — always after a free on-site survey and a written quotation.
F-Gas Registered • Fully Insured • Domestic & Commercial Installations • Free Surveys
Cooling that actually works
Systems sized on room volume, glazing and orientation — not guesswork from a floor plan.
Heating included
Every system we fit is a reverse-cycle heat pump, so it heats efficiently in winter too.
F-Gas registered
Installations carried out by the WDI Group (Surrey) Ltd team. REFCOM REF1021486.
Domestic
Air conditioning for your home
The rooms our Carshalton customers ask about most often.
Bedrooms
Bedrooms are the rooms people most often ask us about, particularly south and west facing rooms that hold heat well into the evening. A wall mounted a…
Read moreLiving rooms
Living rooms tend to be the largest heat gain in a house: big windows, televisions and several people in the room at once. Air conditioning gives you …
Read moreLoft conversions
Loft conversions are frequently the hottest rooms in the house. They sit directly beneath the roof, often have Velux glazing and gain heat all day, so…
Read moreGarden rooms
Garden rooms are used all year: as offices, studios, gyms and treatment rooms. They are also small, well glazed and lightly built, which means they he…
Read moreHome offices
Working from home in a small spare room with a laptop, monitors and a closed door is uncomfortable by mid-afternoon in summer. Air conditioning keeps …
Read moreConservatories
A conservatory is the clearest example of solar gain in a domestic property: large glazed areas, often a glass or polycarbonate roof, and very little …
Read moreCommercial
Offices, shops and small commercial premises
Installations planned around your trading hours where required.
- Office Air Conditioning
- Shop Air Conditioning
- Restaurant and Café Air Conditioning
- Salon and Clinic Air Conditioning
Local coverage
Based in Surrey, working across the SM postcodes
Carshalton is our home patch, and we cover the surrounding towns and villages daily.
Advice
Guides written for homeowners, not for search engines
Straight answers on cost, sizing, running costs and heating.
Costs and running · 7 min read
How Much Does Air Conditioning Installation Cost in Carshalton?
The honest answer is that price depends on a handful of specific things about your property. Here is what a surveyor is actually pricing when they quote.
Costs and running · 6 min read
Is Home Air Conditioning Expensive to Run?
Running cost depends on how much heat the system has to move, not on the size of the unit on the wall. Here is how to think about it sensibly.
How it works · 6 min read
Can Air Conditioning Heat Your Home in Winter?
Yes. A reverse-cycle system is an air-to-air heat pump, and heating is often the mode people end up using most. Here is what to expect.
Choosing a system · 6 min read
What Size Air Conditioner Do I Need for My Room?
Capacity is about heat gain, not floor area. Here is what a surveyor measures and why two identical-looking rooms can need different systems.
Our work
Recent installations by the WDI Group (Surrey) Ltd team
Real jobs, photographed on the day — indoor units, condensers and tidy pipework.
Living room wall-mounted unit positioned above the window line for even airflow.
LG indoor unit in a bedroom, set into the corner to keep pipework runs short.
LG condenser on galvanised brackets with an isolator and neatly clipped pipework.
Samsung WindFree indoor unit with colour-matched trunking to the exterior wall.
Bracket-mounted condenser on a clad elevation where ground space was unavailable.
Every installation is carried out by the WDI Group (Surrey) Ltd team.
Air conditioning unit running in a customer's living room
Bedroom air conditioning system on test after installation
Outdoor condenser and pipework on a completed installation
Part of WDI Group (Surrey) Ltd
Carshalton Air Conditioning is a trading website of WDI Group (Surrey) Ltd
Your survey, installation, invoice and warranty are all handled by the same established Wallington-based plumbing, heating and air conditioning company — WDI Group (Surrey) Ltd, REFCOM REF1021486. Nothing is subcontracted out.
Visit www.wdigroupltd.co.ukAnswers
Frequently Asked Questions
The questions we are asked most often before a survey.
Part of WDI Group (Surrey) Ltd
Arrange Your Free Air Conditioning Survey
Tell us about the room or property and we will arrange a free survey, then send a written quotation setting out the system, positions and scope of work.