Garden room and home office air conditioning in East Sussex

Garden room and home office air conditioning across East Sussex

We check the armoured supply cable on every Brighton garden room before quoting. Garden offices used every day in Brighton need cooling in summer and efficient heat in winter. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.

Prices in East Sussex

In South East England, our guide range for garden room and home office air conditioning is £1,745–£3,845 per system, including VAT. That is above the UK middle, mainly because labour and access cost more in South East England. What moves a quote in East Sussex up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. As an example, the Popular option (3.5 kW unit with Wi-Fi to warm up before you walk down the garden) would typically be £2,195–£2,995 here.

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

On a survey in East Sussex the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. We book surveys in East Sussex at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.

What is included

Included with garden room and home office air conditioning across East Sussex:

• Fixings into frame or solid sections
• Short pipe run to a ground-mounted outdoor unit
• Pressure test, vacuum and commissioning
• Compact inverter unit sized to the space
• Free survey including the garden room's electrics
• Handover and timer set-up for working hours

Towns in East Sussex

Pick your town for local details, or see every service in East Sussex.

• Brighton
• Eastbourne
• Hastings
• Hove
• Bexhill-on-Sea
• Hailsham
• Seaford
• Rottingdean
• Crowborough