Conservatory air conditioning in New Malden
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. In New Malden, the indoor unit usually goes on the original house wall inside the conservatory.
If your conservatory in New Malden faces south, that is where overheating is worst. New Malden sits around 9 miles from central London, inside our London area. We cover KT3 and the streets around them.
Prices in New Malden
Our London guide price for conservatory air conditioning is £1,895–£4,545 per system, VAT included. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. What moves a quote in New Malden up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Popular work (5 kW unit with Wi-Fi for a medium conservatory or orangery) lands around £2,445–£3,445 in this area.
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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
On a survey in New Malden 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. A survey in New Malden 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.
What is included
Here is what is included on every job in New Malden:
- Reversible inverter unit sized for glass
- Fixing to the house wall or a dwarf wall
- Advice on blinds and roof upgrades that cut running costs
- Pipe route and outdoor unit position agreed
- Free survey with glazing and roof heat-gain check
Nearby
Close to New Malden, our coverage also includes Surbiton (2 miles), Morden (3 miles) and Wimbledon (3 miles). See all services in New Malden or conservatory air conditioning across London.

