Any replacement windows need fitting accurately, requiring the taking of precise measurements – that’s where a company like County comes in!
Our installers are the best in their field and will see that window replacements fit into your home’s apertures like a glove.
Although we’ll sort the measuring, it remains useful to know about the UK’s most common window sizes.
UPVC Windows
UPVC material is practically maintenance-free and very inexpensive. These are the typical sizes of UPVC windows:
- Heights: 600mm, 1050mm, 1200mm, 1350mm, 1500mm
- Widths: 488mm, 630mm, 915mm, 1200mm, 1770mm

Casement Windows
One of the UK’s favourite styles, their versatility being one reason why. Typical sizes are as follows:
- 635 x 890mm
- 736 x 1194mm
- 736 x 1498mm

Tilt & Turn Windows
Capable of being tilted or swung open, tilt and turns are supremely easy to clean and mostly come in these sizes:
- Single: 600 x 500mm (min), 1900 x 1300mm (max)
- Double: 600 x 1200mm (min), 1700 x 2400mm (max)
- Triple: 600 x 1600mm (min), 1900 x 3000mm (max)

Window Guidance By Room Type
Bathroom – Bathroom windows are generally quite small and have frosted or obscured glazed inserts to uphold user privacy.
Living Room – The largest windows are usually found in living rooms, where light capture is essential for wellbeing.
Kitchen – Windows in kitchens tend to sit above sinks and have a restricted length in comparison to windows elsewhere.
Bedroom – A bedroom often has a mix of window sizes, from very wide openings to much smaller and snugger designs.

Materials & How They Sway Sizes
Window sizes can be dictated by the type of material you request. The top three materials used are these:
UPVC: Mainly observe standard sizes, very low-price and straightforward to install.
Timber: Wooden frames regularly get customised to suit traditional and historic residences.
Aluminium: With unbelievably slim frames, aluminium designs underline outside views.

County does the hard work of measuring windows before installing its stylish solutions so that fitting them incurs no problems and they raise your home’s character.
Hoping to get new windows put in this summer? Time is of the essence! Contact us straightaway.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
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