Garden room and home office air conditioning in Farnham
For a garden room in Farnham, the outdoor unit usually sits on a small stand behind the building. Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus.
We check the armoured supply cable on every Farnham garden room before quoting. We cover Farnham as part of Surrey, roughly 13 miles from Woking. Coverage includes GU9.
Prices in Farnham
Our South East England guide price for garden room and home office air conditioning is £1,745–£3,845 per system, VAT included. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. What moves a quote in Farnham up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Popular work (3.5 kW unit with Wi-Fi to warm up before you walk down the garden) lands around £2,195–£2,995 in this area.
Essential
2.5 kW unit for a small office pod.
Popular
3.5 kW unit with Wi-Fi to warm up before you walk down the garden.
Premium
5 kW unit for a large studio or gym, or concealed routing.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
We book surveys in Farnham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote.
What is included
Included as standard in Farnham:
- Compact inverter unit sized to the space
- Pressure test, vacuum and commissioning
- Short pipe run to a ground-mounted outdoor unit
- Free survey including the garden room's electrics
- Fixings into frame or solid sections
Nearby
We also cover Aldershot (3 miles), Fleet (5 miles) and Farnborough (6 miles). See all services in Farnham or garden room and home office air conditioning across Surrey.