Window Awnings and Canopies to Keep Your Home Cool
Shading a window from the outside stops heat before it gets in. Here is how window awnings help UK homes through hotter summers.
UK summers are getting hotter, and many homes – particularly loft conversions, flats, new-builds with large windows and rooms with south or west-facing glazing – now overheat for weeks each year. Internal blinds help, but by the time sunlight reaches them it has already passed through the glass and is warming the room.
External shading stops the sun before it hits the window. Window awnings, canopies and external blinds can make a noticeable difference to how warm a room gets, without the running costs of air conditioning.
Types of window awning
Most can be manual or motorised, and motorised versions can be linked to sun sensors so they close automatically when the sun comes round to that side of the house.
- Drop-arm awnings – a roller with two arms that pivot down and out from the wall; simple, effective and easy to retract
- Dutch canopies – curved, folding canopies with a classic look, suited to period homes and bay windows
- Fixed canopies – rigid canopies over windows and doors, often in polycarbonate or metal
- External roller blinds and screens – vertical fabric or slatted blinds that run in side channels, ideal for large glazing and bifold doors
- Conservatory awnings – fabric awnings that run over a conservatory roof to cut heat build-up
Which windows benefit most?
West-facing windows usually cause the most trouble, because the low afternoon sun shines straight in when the house has already warmed up during the day. South-facing windows get a lot of sun but at a higher angle, so a projecting awning or canopy works well. East-facing bedrooms can overheat early on summer mornings.
Top-floor rooms, loft conversions and rooms under flat roofs often benefit most, as heat rises and builds up there.
Things to consider
Upstairs windows need access equipment to install and maintain, and you will need to be able to operate the awning easily from inside – usually with a motor and remote. Check whether the property is listed or in a conservation area before fitting awnings to the front of the house, and for flats, get the freeholder's consent.
Typical window awning costs
| Job | Typical UK price |
|---|---|
| Manual drop-arm awning for a standard window | £350–£750 |
| Motorised drop-arm awning | £650–£1,200 |
| Dutch canopy for a window or bay | £400–£1,000 |
| External roller blind for patio or bifold doors | £900–£2,500 |
| Conservatory roof awning | £2,500–£6,000 |
Indicative UK prices, supplied and fitted. Access equipment for upstairs windows and electrical connections are often priced separately.
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Window awnings: common questions
Do window awnings really keep a house cooler?
Yes. Shading glass from the outside stops much of the sun's heat before it enters the room, which is far more effective than internal blinds or curtains.
Can I fit awnings to upstairs windows?
Yes. They are usually motorised so they can be operated from inside, and installation needs ladders, a tower or a cherry picker depending on height.
What is a Dutch canopy?
A curved fabric canopy on a folding frame, traditionally fitted above shop windows and on period homes. It can be folded back against the wall when not needed.
Are external blinds better than awnings?
For large areas of glazing, such as bifold doors, vertical external blinds often work better because they block low sun. Awnings suit windows where you still want a view out beneath them.
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