Conservatory air conditioning across Hampshire
Conservatories and orangeries in Southampton can swing from too hot in July to too cold in January. In Southampton, the indoor unit usually goes on the original house wall inside the conservatory. Hot spells reach the South East early, which makes spring the easiest time to arrange an installation.
Prices in Hampshire
In South East England, our guide range for conservatory air conditioning is £1,745–£4,195 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 Hampshire up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our South East England figures, the Popular option (5 kW unit with Wi-Fi for a medium conservatory or orangery) is about £2,245–£3,145.
Essential
3.5 kW unit for a small lean-to or Edwardian conservatory.
Popular
5 kW unit with Wi-Fi for a medium conservatory or orangery.
Premium
7 kW or console-plus-wall setup for large glazed rooms.
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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
A survey in Hampshire usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. On a survey in Hampshire 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.
What is included
Included with conservatory air conditioning across Hampshire:
- Fixing to the house wall or a dwarf wall
- Advice on blinds and roof upgrades that cut running costs
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- Pipe route and outdoor unit position agreed
- Reversible inverter unit sized for glass
Towns in Hampshire
Pick your town for local details, or see every service in Hampshire.

