Commercial air conditioning in Farnham
Installation, servicing, repairs and compliance for businesses in Farnham, with local guide prices for every service.
- Free survey for new installations
- Local guide prices for 22 services
- Unit sizes, refrigerant and price set out in writing
Commercial air conditioning in Farnham
Across Farnham we fit and maintain air conditioning for offices, shops, restaurants, gyms, surgeries and technical rooms, with guide prices on every service page.
Guide prices in Farnham start from about £1,650 for a single wall-mounted split, installed, and £195 for a service visit covering the first indoor unit, plus VAT.
Covering Farnham and nearby
Businesses in Farnham range from independent shops and restaurants to offices, clinics and warehouses. Woking is about 20 km away.
That includes premises in CM23, DT11, GU9, HG5 and IP17 and the surrounding districts. Neighbouring towns we cover include Aldershot, Fleet and Farnborough.
Commercial air conditioning in Farnham is priced from a written specification: unit sizes, positions, pipe routes, condensate, electrics, controls and commissioning are all listed.
Before a visit in Farnham we ask for the make, model and number of units so the engineer arrives with the right filters, parts and access equipment.
Popular services in Farnham

Ducted air conditioning
Hidden units above the ceiling, with only slim grilles on show.
From £3,950 per ducted zone, ex VAT

Split and multi-split systems
Wall-mounted and multi-room systems for smaller premises.
From £1,650 per system, ex VAT

Air conditioning cleaning
Deep cleaning of coils, fans, trays and drains for fresher, more efficient units.
From £110 per indoor unit, ex VAT

Air-to-air heat pumps
Use your air conditioning as efficient electric heating as well as cooling.
From £1,895 per zone, ex VAT

Ceiling cassette air conditioning
Four-way and compact cassettes that sit flush in a suspended ceiling.
From £2,450 per cassette, ex VAT

Air conditioning servicing
Routine servicing that keeps systems efficient, clean and within warranty.
From £195 per visit, first indoor unit, ex VAT
All services and local guide prices
Air conditioning installation
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial air conditioning installation | £2,250 | per indoor unit (zone) |
| Office air conditioning | £2,450 | per zone |
| VRF and VRV systems | £2,795 | per indoor unit (whole system) |
| Ceiling cassette air conditioning | £2,450 | per cassette |
| Ducted air conditioning | £3,950 | per ducted zone |
| Split and multi-split systems | £1,650 | per system |
| Air-to-air heat pumps | £1,895 | per zone |
| Server room and comms room cooling | £4,550 | per room (duty/standby pair) |
Servicing, repairs and replacement
| Service | From (ex VAT) | Basis |
|---|---|---|
| Air conditioning servicing | £195 | per visit, first indoor unit |
| Planned maintenance contracts | £225 | per indoor unit, per year |
| Air conditioning repairs | £165 | per repair visit |
| Air conditioning cleaning | £110 | per indoor unit |
| Air conditioning replacement and upgrades | £1,895 | per indoor unit |
F-gas and TM44 compliance
| Service | From (ex VAT) | Basis |
|---|---|---|
| F-gas leak checks and records | £165 | per visit, first system |
| TM44 air conditioning inspections | £455 | per building |
| Decommissioning and refrigerant recovery | £280 | per system |
Ventilation and air quality
| Service | From (ex VAT) | Basis |
|---|---|---|
| Commercial ventilation | £3,395 | per system |
| Heat recovery ventilation (MVHR) | £5,695 | per unit installed |
| Fan coil units | £75 | per fan coil serviced |
| Air handling units | £280 | per unit, per visit |
Design and specialist systems
| Service | From (ex VAT) | Basis |
|---|---|---|
| HVAC design and heat load surveys | £570 | per project |
| Air curtains | £1,650 | per doorway |
Things to check in Farnham
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.
Conservation areas
Historic streets and listed buildings in and around Farnham are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Working hours
Most Farnham businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
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 in Farnham
How much does commercial air conditioning cost in Farnham?
A single wall-mounted split typically costs £1,650–£2,795 plus VAT installed in Farnham, and a ceiling cassette £2,450–£5,695 per unit. A small shop or office with two to four indoor units usually comes to £5,695–£18,995 plus VAT.
Do you also cover Aldershot, Fleet and Farnborough?
Yes. Alongside Farnham, we also cover Aldershot, Fleet and Farnborough. Each has its own page with local guide prices.
Which refrigerant do new systems use?
Most new small split systems use R32, because new single splits under 3 kg in Great Britain cannot use refrigerants with a GWP of 750 or more. Larger systems vary by equipment.
Do you handle landlord consent?
We supply the drawings, unit data sheets and method of fixing your landlord or managing agent will ask for.
Can you work outside our opening hours?
Yes. Early starts, evenings and weekends can be arranged, and any extra cost is shown in the quote.
Nearby towns
Get a guide price for Farnham
Send a few details and we will arrange a survey or call you back with a guide price.