Split and multi-split systems in West Sussex
Split and multi-split air conditioning in West Sussex, sized to the real heat load of your premises rather than guessed from the floor area.
- Free site survey and fixed written quote
- Unit sizes, refrigerant and price set out in writing
- Work planned around your opening hours
How much does a split air conditioning system cost in West Sussex?
Our guide range in West Sussex is £1,650–£3,395 per system before VAT; a typical job (two-room multi-split) is £3,950–£6,850 plus VAT. Your exact price is fixed in writing once we have surveyed.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
West Sussex and surrounding areas
We cover all of West Sussex, including Crawley, Worthing, Bognor Regis, Littlehampton and Horsham. Wherever your premises are, the survey, quote and installation follow the same steps.
Postcode districts we cover include BN5, BN14, BN42, BN99, PO10, PO22, RH14 and RH77. Buildings across West Sussex range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.
What the job covers
- Survey and unit sizing
- Wall-mounted, floor-standing or under-ceiling indoor units
- Outdoor unit on wall brackets, a flat roof frame or ground mounts
- Pipework in neat trunking or concealed routes
- Commissioning, remote or wired controls and F-gas records
Prices in West Sussex
Guide prices for West Sussex, set for the South East. Your fixed price comes in writing.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single split 2.5–3.5 kW | £1,650–£2,795 | £1,980–£3,354 | per system |
| Single split 5–7 kW | £2,250–£3,395 | £2,700–£4,074 | per system |
| Multi-split, 2 indoor units | £3,950–£6,850 | £4,740–£8,220 | per system |
| Multi-split, 3–4 indoor units | £5,695–£11,450 | £6,834–£13,740 | per system |
| Extra pipework beyond 5 m | £40–£75 | £48–£90 | per metre |
Ex VAT, supply and install with standard access.
The steps for a project in West Sussex
Survey
We size the unit to the room and agree indoor and outdoor positions and the pipe route.
Mount the units
Indoor unit on a mounting plate, outdoor unit on brackets or a frame with anti-vibration mounts.
Pipe and wire
Pipework, interconnecting cable and condensate are run and made off neatly. We keep work areas in West Sussex screened and tidy at the end of each day.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Points to plan for in West Sussex
Pipe routes
Shorter, simpler pipe routes are cheaper and more reliable. We plan routes before quoting.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
One outdoor unit, many rooms
Multi-splits save wall space but share a single compressor. For server rooms or critical spaces we recommend dedicated systems.
Leased premises
If your West Sussex premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Types of premises we cover in West Sussex
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Your questions answered
How much does a split air conditioning system cost in West Sussex?
Guide prices in West Sussex run from about £1,650 to £3,395 per system, plus VAT. A typical job (two-room multi-split) costs £3,950–£6,850 plus VAT. We fix the price in writing after a free survey.
Do you also cover East Sussex, Surrey and Hampshire?
Yes. Alongside West Sussex, we also cover East Sussex, Surrey and Hampshire. Each has its own page with local guide prices.
How much does a split air conditioning system cost for a business?
A single wall-mounted split typically costs £1,450–£2,950 plus VAT installed. Multi-splits with two to four indoor units are typically £3,450–£9,950 plus VAT.
Can a split system heat in winter?
Yes. Modern split systems are heat pumps and can heat efficiently down to well below freezing.
Talk to us about your premises in West Sussex
Free survey and fixed written quote. We reply with a guide price or to book the survey.