Bedroom air conditioning is the fastest-growing segment of residential AC in London. A correctly installed system makes sleeping through a London summer straightforward — without the noise or inefficiency of a portable unit. For the full range of domestic installation options, or to understand costs, see our AC cost guide.
What to Look for in a Bedroom AC Unit
Noise Level
Look for units rated below 22dB(A) in sleep mode. Daikin Perfera and Mitsubishi Electric MSZ-LN both operate at around 19-21dB(A) at minimum speed — genuinely quiet in a sleeping room.
Correct Sizing
A typical London bedroom of 15-20m² needs a 2.5kW system. Correct sizing at survey stage is critical — an undersized unit runs continuously and never achieves the set temperature.
Whole-House Residential Installations
For whole-house cooling, a multi-split system serves multiple rooms from one outdoor unit. See our domestic installation page. For flats, see our London flats AC guide. For period properties, see our Victorian properties guide.
| Rooms to cool | System | Approx. installed cost |
|---|---|---|
| 1 room | Single wall-mounted split | £1,200-£2,200 |
| 2 rooms | Multi-split | £2,800-£4,500 |
| 3-4 rooms | Multi-split | £4,500-£7,500 |
Frequently Asked Questions
What brands do you recommend for bedrooms?
Daikin Perfera and Emura for quiet operation. Mitsubishi Electric MSZ-LN for ultra-low noise. Both carry strong warranties when installed by an F-Gas certified engineer.
Can I install AC in a rented home?
Only with landlord consent. For tenants, see our London flats guide.
Book a Survey
Free surveys for bedroom and whole-house residential installations: 020 7870 2333. We cover Central, North, West, and South West London.
Simply Air Conditioning London — F-Gas certified residential installation since 2009.
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