Air conditioning for landlords and rental homes in Westminster
In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep. If you let a holiday home or annexe near Westminster, one system can warm it before guests arrive and cool it in summer.
Top-floor flats and HMO rooms in Westminster can get uncomfortably hot in summer, which tenants notice first. Westminster sits within our London area. Postcode districts we cover here include SW1A, SW1E, SW1H, SW1P, SW1V and SW1W.
Prices in Westminster
Guide prices around Westminster run from £1,495 to £7,845 per property, one room to the whole let including VAT. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. As an example, the Two rooms option (two rooms on separate systems or a twin multi-split) would typically be £3,095–£4,795 here.
Single room
One wall unit for a bedroom or studio.
Two rooms
Two rooms on separate systems or a twin multi-split.
Whole let
Three or four rooms, with a service plan.
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
The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote. 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
Every job in Westminster includes:
- Free survey of each room
- Simple remotes and temperature limits
- Access arranged with you and your tenants
- Separate or multi-split options
- Pressure test, vacuum and commissioning
Nearby
Close to Westminster, our coverage also includes Chelsea (2 miles), Battersea (2 miles) and Brixton (3 miles). See all services in Westminster or air conditioning for landlords and rental homes across London.