Commercial air conditioning installation in Horsham
Cooling and heating for offices, shops and hospitality venues in Horsham, with a free site survey and a fixed written quote.
- 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 commercial air conditioning installation cost in Horsham?
Our guide range in Horsham is £2,250–£5,450 per indoor unit (zone) before VAT; a typical job (small shop or office, 2–4 indoor units) is £5,695–£18,995 plus VAT. You get a fixed written quote after the free survey.
Commercial air conditioning installation is the design, supply, fitting and commissioning of a cooling (and usually heating) system for a business premises.
Covering Horsham and nearby
In Horsham, typical premises are high-street shops, offices above them, surgeries, salons and local industrial units. Crawley is about 12 km away.
That includes premises in RH12 and WR6 and the surrounding districts. Nearby, we also cover Crawley (about 12 km), Horley (about 17 km) and Haywards Heath (about 17 km). 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
- Site survey and heat load calculation
- System and unit selection with a clear written specification
- Refrigerant pipework, insulation and condensate drainage (with pumps where needed)
- Commissioning, controls set-up and a handover walk-through
- F-gas records, labelling and commissioning certificates
Guide prices in Horsham
These guide prices are adjusted for the South East, where labour and access costs run about 15% above the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single wall-mounted split (2.5–7 kW) | £1,650–£3,395 | £1,980–£4,074 | per system |
| Ceiling cassette | £2,450–£5,695 | £2,940–£6,834 | per unit |
| Multi-split, 2–4 indoor units | £3,950–£11,450 | £4,740–£13,740 | per system |
| Ducted indoor unit with grilles | £3,950–£9,150 | £4,740–£10,980 | per unit |
| Electrical supply and isolator | £280–£915 | £336–£1,098 | per system |
Ex VAT, supply and install, standard access and up to about 5 m of pipework per unit.
From enquiry to handover in Horsham
Survey
We measure the space, check the ceiling void, wall construction, glazing and occupancy, and agree where indoor and outdoor units can go.
Design and quote
You get a written specification with unit sizes, positions, pipe routes and a fixed price — plus any planning, landlord or noise points to resolve first.
First fix
Pipework, cabling and condensate runs go in, usually above ceilings or in neat trunking, before the units are hung. In Horsham we agree timings around your opening hours.
Install and test
Indoor and outdoor units are fitted, the system is pressure tested with nitrogen, evacuated and charged with refrigerant.
Commission and hand over
We set up controls, check air flows and temperatures, show your team how to use it and hand over the F-gas and commissioning paperwork.
Before you book in Horsham
Landlord consent
Most commercial leases need the landlord's written consent before external units or wall penetrations go in. We can provide drawings and unit data sheets for the request.
Working hours
Most Horsham businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Planning and noise
Outdoor units on commercial buildings often need planning permission — particularly on a front elevation, in a conservation area or on a listed building — and councils may ask for a noise assessment.
Leased premises
If your Horsham 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 Horsham
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
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).
Questions about AC installation in Horsham
How much does commercial air conditioning installation cost in Horsham?
Guide prices in Horsham run from about £2,250 to £5,450 per indoor unit (zone), plus VAT. A typical job (small shop or office, 2–4 indoor units) costs £5,695–£18,995 plus VAT. We fix the price in writing after a free survey.
Do you also cover Crawley, Horley and Haywards Heath?
Yes. Alongside Horsham, we also cover Crawley, Horley and Haywards Heath. Each has its own page with local guide prices.
Which postcodes do you cover in Horsham?
All of them, including RH12 and WR6. Give us your postcode when you enquire and we will confirm the visit details.
Which refrigerant will you use?
In Great Britain, new single split systems holding less than 3 kg of refrigerant cannot use a refrigerant with a global warming potential of 750 or more, so most are now R32. Larger systems may use R32, R454B or R410A depending on the equipment. We state the refrigerant and charge in the quote.
How long does a commercial air conditioning installation take?
A single split system is usually fitted in a day. A small office or shop with three or four units typically takes two to four days, and a VRF system for a whole floor can take several weeks. We confirm the programme in the quote.
Get a guide price for Horsham
Free survey and fixed written quote. We reply with a guide price or to book the survey.