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Room guide

Air conditioning for your bedroom

A bedroom that is too hot in summer and too cold in winter is one of the main reasons people ask us about air conditioning. The same wall-mounted unit cools the room on a warm night and heats it on a cold morning, so it earns its place all year, not just in July.

A white wall-mounted air conditioning unit above an upholstered headboard, remote in hand
Above the headboard, remote in hand

What size do you need?

Our size guide (the same one we use to work out every price on this site) treats a standard bedroom as a 2.5kW system. If your bedroom is larger than average, or it gets a lot of afternoon sun through a big window, a 3.5kW system (the "large bedroom" size in our guide) is usually the better fit. We check the exact size for your room at a free survey, because wall area, ceiling height and how sunny the room gets all play a part.

Black trunking running down a red brick wall to the outdoor units
Trunking down a red brick wall

Where the unit goes

The indoor unit is normally fitted high on a wall, positioned so the airflow does not blow straight onto the bed. Our engineer looks at where the pipework can run to an outside wall with the least disruption, and where the outdoor unit can sit without bothering you or the neighbours. Samsung's WindFree mode, fitted on our Bronze package, spreads cool air out through thousands of small holes instead of one blast of air, which a lot of people prefer for overnight comfort (Samsung).

Best place to install air con in a bedroom

There is no one right wall for every bedroom. The best place depends on where the bed is, where the windows are and how the pipework can get outside. Above the bed is not automatically the best spot, and neither is the wall facing it. What matters is the path the air takes across the room.

Before your survey, it helps to sketch the room and mark:

  • the bed, and which end the pillows are
  • the windows, and which walls get strong sun
  • walls with free space high up, clear of wardrobes, doors and curtains

From there, we look for a position where the air travels across the open part of the room, not straight at your pillow. Most units let you set the direction of the louvres, so the air can be sent across the room or along the ceiling. We also plan the pipe route at the same time, because a wall that looks ideal for airflow can mean an awkward pipe run, while the next wall along may give a short, tidy route straight through to the outdoor unit.

If you live in Wickford or nearby, we cover the whole town from our base at Bowers Gifford, and we check every bedroom at a free survey rather than assume a standard layout. See air conditioning in Wickford for more on the area.

How noisy is it?

Noise matters most in a bedroom. Samsung publishes indoor noise of 19 to 36 dB(A), from the quietest setting to the fan on full, for the 2.5kW WindFree Comfort on our Bronze package. For the other packages, we can go through each manufacturer's figures with you at your free survey. Here are all six packages at the 2.5kW size:

PackageSystemPrice (2.5kW)Parts warranty
BudgetHaier Revive Plus£1,5853-year parts warranty
BronzeSamsung WindFree Comfort£1,8057-year parts warranty
SilverFujitsu Standard KM White£1,8555-year parts warranty
Gold (recommended)Mitsubishi Heavy Industries Premium ZS White£2,04010-year parts warranty
PlatinumDaikin Perfera White£2,1453-year parts warranty
EliteDaikin Stylish White£2,5053-year parts warranty

Prices shown are fully supplied, installed, tested and commissioned for a 2.5kW system. The Budget package's smallest Haier Revive Plus is rated 2.7kW. The price on our list is the fully installed price, including VAT. If the indoor unit is not on or next to an external wall, add £200 for a condensate pump.

Outdoor units on brackets on a yellow brick house wall
Outdoor units on wall brackets

What it costs to run

Running cost depends on the size of the room, how warm it is outside, your thermostat setting and how long the unit runs for. Electricity is charged at the Ofgem energy price cap rate, which is 26.32p per kWh for 1 October to 31 December 2026. So for every kilowatt a unit draws over an hour, you pay about 26p. A unit only runs near full power while it cools the room down, and uses less once the room has cooled and it cycles down.

Which package suits a bedroom?

Budget (Haier Revive Plus) is the most affordable of our six fixed-price packages and covers most bedrooms well, with a 3-year parts warranty. Bronze (Samsung WindFree Comfort) suits anyone who does not like air blowing directly on them while they sleep, and comes with a 7-year parts warranty. Gold is our recommended package: the Mitsubishi Heavy Industries Premium ZS White with a 10-year parts warranty, the longest parts warranty in our line-up. Silver (Fujitsu), Platinum and Elite (both Daikin) are available too if you prefer one of those brands.

Ready to see your price?

Get your bedroom price with all six packages shown side by side, or call 01268 264002 for a same-day reply.

Best for a bedroom

The packages we suggest for a bedroom

Every price is fully fitted. Pick one to open the price tool.

  • Haier Revive Plus wall-mounted indoor unit in white

    Budget

    Haier Revive Plus

    3-year parts warranty

    2.7kW
    £1,585
    3.5kW
    £1,605
    4.8kW
    £1,825
    See my price for Budget
  • Samsung WindFree Comfort wall-mounted indoor unit in white

    Bronze

    Samsung WindFree Comfort

    7-year parts warranty

    2.5kW
    £1,805
    3.5kW
    £1,870
    5kW
    £2,200
    See my price for Bronze

Fully supplied, installed, tested and commissioned, including VAT. This is the fully installed price, inc VAT. Add £200 for a condensate pump if your indoor unit is not on or next to an external wall.

Questions about bedroom air conditioning

Short answers to what people ask us most.

All questions answered
Is it safe to sleep with air conditioning on?

Yes. A well-maintained, correctly fitted system is safe to leave running overnight. Most people set it a few degrees below room temperature rather than very cold, and use a lower fan speed so it is quieter. Keep the room ventilated now and then and have the unit serviced so filters stay clean.

Where should air conditioning go in a bedroom?

The indoor unit usually goes high on a wall, angled away from the bed so the airflow does not blow straight onto your face overnight. Our engineer checks the room layout, the wall the pipework can run through and where the outdoor unit can sit before confirming the exact spot.

What size air conditioner do I need for a bedroom?

Our size guide treats a standard bedroom as a 2.5kW job. A larger bedroom, or one with a lot of south-facing window, usually needs 3.5kW. We check the exact size at your free survey.

Will the unit be too noisy to sleep through?

Samsung lists the 2.5kW WindFree Comfort on our Bronze package at 19 dB(A) indoors on its quietest setting, which is very quiet, so you are unlikely to notice it in a quiet bedroom. We can go through the manufacturer's figures for the other packages at your survey. Any unit gets louder on full power, so most people turn the fan down at night once the room has cooled.

A white wall-mounted air conditioning unit above a wide window looking out over gardens and rooftops

Real installs by our own team

A real install by our own team. The price on our list is the fully installed price, inc VAT.

Get your fixed price

Send the room, the floor area if you know it, and a photo of the wall. You will hear back the same day with the fully installed price from our list.

A wall unit fitted above a door, remote in hand

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