Air conditioning acrossBrighton & Hove
Brighton summers are getting hotter, and seafront flats, loft conversions and south facing rooms can be unbearable by July. A modern split system air conditioner cools a room in minutes, runs quietly, and doubles as an efficient heater in winter. We are F-Gas certified, which is the legal requirement for handling refrigerant, so your system is installed safely and correctly.
Air conditioning installation
We supply and fit wall mounted split systems and multi split systems (one outdoor unit running two or more indoor units). We survey the property, recommend the right size and position, fit the units, run the pipework neatly, commission the system and show you how to use it. Most single room installs are done in a day.
Air conditioning servicing
An annual service keeps your system efficient, hygienic and under warranty. We clean the filters and coils, check refrigerant levels and pressures, test the drainage and controls, and pick up small problems before they become expensive ones.
Air conditioning repairs
Not cooling, not heating, leaking water, strange noises or error codes? We diagnose and repair all major brands, including Daikin, Mitsubishi Electric, Fujitsu, LG, Panasonic and Toshiba. We carry out regas where a leak has been found and fixed.

Air con for homes
Bedrooms, living rooms, home offices and loft rooms are the most common installs. A single wall mounted unit with a small outdoor unit on an external wall or flat roof is usually all that is needed. Modern units are quiet enough to sleep with and cost pennies an hour to run.
Air con for offices, shops and salons
We install and maintain air conditioning for small businesses across Brighton and Hove, including offices, shops, cafes, salons and treatment rooms. Comfortable customers stay longer, and comfortable staff work better. We can schedule installs outside trading hours to avoid disruption.
Heating and cooling in one unit
Every system we fit is a heat pump, which means it heats as well as cools. In winter it provides efficient, fast heating for the room, often cheaper to run than electric heaters and a useful backup if your boiler fails.
How it works
- 1
Free survey. We visit, look at the room and the outside wall, and recommend the right system.
- 2
Fixed quote. You get a written price for supply and installation with no hidden extras.
- 3
Install and commission. We fit the system, test it and show you how to use it. Most jobs are done in a day.
Why Brighton customers choose Giles Gas & Plumbing for air con
F-Gas certified. Legally required for anyone working with refrigerant. Ask to see our certificate.
Neat installs. Pipework and cabling run tidily, with trunking colour matched to your walls.
Gas, plumbing and air con in one. One engineer for your boiler, plumbing and air conditioning.
Guaranteed work. Our workmanship guarantee sits alongside the manufacturer's warranty on the unit.
Air conditioning across Brighton, Hove and Sussex
We install, service and repair air conditioning in Brighton, Hove, Portslade, Shoreham-by-Sea, Lancing, Saltdean, Lewes, Hassocks, Hurstpierpoint, Burgess Hill, Haywards Heath and Henfield.



