Split System Air Conditioning Installation
We install wall-mounted split air conditioning for homes and small businesses across Brighton and Sussex, handling everything from siting and pipework to electrics and finish so you deal with one company from start to finish.

What's involved in a split system install
Every split system job covers the same core stages, whether it's one room or a whole house.
Site Survey & Sizing
We assess the room, glazing, and use to get the unit size and siting right before anything is quoted.
Indoor & Outdoor Unit Fitting
Mounting the wall-mounted indoor unit and outdoor condenser, with wall penetration and pipe routing done neatly.
Refrigerant Line Work & Testing
Copper lines flared, vacuumed and pressure-tested by suitably qualified refrigerant engineers before the system is commissioned.
Electrical Supply & Making Good
Running the electrical supply the system needs and making good any wall, render or decor disturbed by the install.
Getting one room properly cooled and heated
A split system is two units doing one job: a wall-mounted indoor unit and an outdoor condenser, joined by refrigerant pipework, a drain line and a power cable. It is the standard answer for a room that overheats, without ripping out ceilings for ductwork.
Most people come to us with one room in mind. We survey before quoting, because room size, glazing, pipe run length, access and the available electrical supply all change both the right system and the price. From there we handle the siting, the wall penetration, the pipe routes, the condensate, the electrics and the making good. The refrigerant work, flaring, vacuuming, pressure testing and leak checking, is carried out by suitably qualified refrigerant engineers who work to us, the same way a builder brings in a qualified electrician.
One number, one team, and one company responsible for how it looks as well as how it runs.
Most modern split systems are reverse-cycle, so they heat as well as cool. A unit fitted for a hot loft in July is doing useful work again by October, which is often what decides it.
Rooms we fit split systems in
Garden room air conditioning — garden offices, studios and summer houses. Unbearable in July, unusable in January, and one reverse-cycle unit deals with both. The survey checks the spur from the house can carry the load.
Loft conversion air conditioning — loft rooms catch the sun all day and hold the heat. Fitted during the build, or as a neat retrofit once the room is finished.
Conservatory air conditioning — the heat load depends on the glazing and which way the room faces, not the floor area. Sizing to the real load is what makes the room usable all year.
Home gym air conditioning — garages, spare rooms and garden buildings, sized for the heat you generate training rather than the square footage.
Bedroom air conditioning — getting the noisy part outside and siting it thoughtfully. The aim is sleeping better, not just colder.
More information
We fit single splits for one room, multi-split systems where several rooms share one outdoor unit, and small commercial premises on the same basis. We don't quote without a survey, because the things that move the price are the things you can only see on site.
We cover Brighton and Hove, Worthing, Lewes, Shoreham-by-Sea, Haywards Heath, Seaford, Burgess Hill and the surrounding Sussex towns. If you're weighing up whether a split system suits your space, get in touch and we'll talk it through before anyone climbs a ladder.
Worth considering
Air Conditioning Repair
Air conditioning not cooling, leaking, icing up or noisy? We diagnose the fault and fix it properly, with no quick top-ups, across Brighton and Sussex.
Air Conditioning Repair→Air Conditioning Cleaning
Deep cleaning for split system air conditioning, clearing filters, coils, blower wheels and condensate drains that cause musty smells and weak airflow.
Air Conditioning Cleaning→Emergency Air Conditioning Repair
Emergency air conditioning repair and diagnosis for homes and businesses across Brighton, Hove and the surrounding Sussex towns.
Emergency Air Conditioning Repair→Commercial Air Conditioning Installation
Air conditioning installation for shops, salons, offices and cafes across Brighton, Hove and the surrounding Sussex towns, with minimal disruption to trading.
Commercial Air Conditioning Installation→Commercial Air Conditioning Maintenance
Planned air conditioning maintenance for shops, salons, offices and cafes across Brighton, Hove and the surrounding Sussex towns.
Commercial Air Conditioning Maintenance→Before you book a survey
Answers to what people usually ask before fitting a split system, based on the jobs we actually do.
How much does a split system installation cost?
Can one system heat as well as cool?
Who actually carries out the refrigerant work?
What rooms are split systems usually fitted in?
Do you fit air conditioning in commercial premises too?
How long does an installation take?
What if my system develops a refrigerant leak later on?
Which areas do you cover?
Let's talk about your space
Call 01273 911551 or send us a message and we'll arrange a survey before anything is quoted.
Call 01273 911551