Split and multi-split systems in Trowbridge
Split and multi-split air conditioning in Trowbridge, 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 Trowbridge?
Budget roughly £1,500–£3,050 per system ex VAT in Trowbridge. For a typical job — two-room multi-split — expect £3,595–£6,195 plus VAT. The fixed price follows a free survey.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
Covering Trowbridge and nearby
In Trowbridge, typical premises are high-street shops, offices above them, surgeries, salons and local industrial units. Bath is about 12 km away.
We cover every Trowbridge postcode, including BA14. Neighbouring towns we cover include Melksham, Bath and Frome. For split and multi-split air conditioning in Trowbridge, the survey looks at where the outdoor unit can go, how pipework will reach the indoor units and whether the electrical supply has capacity.
What is included
- 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
- Condensate drainage
- Commissioning, remote or wired controls and F-gas records
Guide prices in Trowbridge
Prices below include our regional adjustment for the South West (4% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single split 2.5–3.5 kW | £1,500–£2,550 | £1,800–£3,060 | per system |
| Single split 5–7 kW | £2,050–£3,050 | £2,460–£3,660 | per system |
| Multi-split, 2 indoor units | £3,595–£6,195 | £4,314–£7,434 | per system |
| Multi-split, 3–4 indoor units | £5,150–£10,350 | £6,180–£12,420 | per system |
| Extra pipework beyond 5 m | £35–£70 | £42–£84 | per metre |
Ex VAT, supply and install with standard access.
The steps for a project in Trowbridge
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. In Trowbridge we agree timings around your opening hours.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Things to check in Trowbridge
Outdoor unit position
Outdoor units need air flow and access, and should be away from neighbours' windows to keep noise down.
Working hours
Most Trowbridge businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Refrigerant rules
Since 1 January 2025, new single split systems holding under 3 kg of refrigerant in Great Britain cannot use refrigerant with a GWP of 750 or more — in practice, R32 or lower.
Conservation areas
Historic streets and listed buildings in and around Trowbridge are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Types of premises we cover in Trowbridge
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Common questions from businesses in Trowbridge
How much does a split air conditioning system cost in Trowbridge?
Guide prices in Trowbridge run from about £1,500 to £3,050 per system, plus VAT. A typical job (two-room multi-split) costs £3,595–£6,195 plus VAT. We fix the price in writing after a free survey.
Do you also cover Melksham, Bath and Frome?
Yes. Alongside Trowbridge, we also cover Melksham, Bath and Frome. Each has its own page with local guide prices.
Which postcodes do you cover in Trowbridge?
All of them, including BA14. Give us your postcode when you enquire and we will confirm the visit details.
Can a split system heat in winter?
Yes. Modern split systems are heat pumps and can heat efficiently down to well below freezing.
Does a small split need F-gas leak checks?
It depends on the refrigerant charge and type. Many small R32 splits fall below the 5 tonnes CO2 equivalent threshold for mandatory leak checks, but they still need installing and servicing by F-gas certified engineers.
Need split and multi-split air conditioning in Trowbridge?
Free survey and fixed written quote. We reply with a guide price or to book the survey.