Garden room and home office air conditioning in Westminster
We check the armoured supply cable on every Westminster garden room before quoting. 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.
Garden offices used every day in Westminster need cooling in summer and efficient heat in winter. Westminster is part of our London coverage. Postcode districts we cover here include SW1A, SW1E, SW1H, SW1P, SW1V and SW1W.
Prices in Westminster
Guide prices around Westminster run from £1,895 to £4,145 per system including VAT. That is above the UK middle, mainly because labour and access cost more in London. 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. For reference, the Popular option in Westminster (3.5 kW unit with Wi-Fi to warm up before you walk down the garden) usually comes to about £2,345–£3,245.
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
For most houses in Westminster, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
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. We book surveys in Westminster at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Westminster includes:
- Pressure test, vacuum and commissioning
- Fixings into frame or solid sections
- Free survey including the garden room's electrics
- Short pipe run to a ground-mounted outdoor unit
- Compact inverter unit sized to the space
Nearby
If you are just outside Westminster, we also work in Chelsea (2 miles), Battersea (2 miles) and Brixton (3 miles). See all services in Westminster or garden room and home office air conditioning across London.