What Is a Casement Window?
A Simple Guide for UK Homeowners
Everything you need to know about this classic, practical window style.
When choosing new windows for your home, it’s easy to feel overwhelmed by all the different styles and options. One of the most popular – and versatile – choices is the casement window. But what exactly is a casement window, and is it right for your home?
At Select Windows, we’re here to break it down simply and clearly. Whether you’re renovating, replacing old windows or building from scratch, here’s everything you need to know.
What is a Casement Window?
A casement window is a window that is attached to its frame by one or more side hinges. It opens outwards (or sometimes inwards) like a door, using a handle or crank mechanism. They’re typically hinged at the side, but you can also get top-hung (awning) or bottom-hung (hopper) versions.
They’re one of the most common window styles in UK homes — and for good reason!
Key Features of Casement Windows
- Available in uPVC, aluminium or timber finishes
- Side-hinged opening – usually opens outward for maximum ventilation
- Slim, modern frame – maximises natural light
- Secure locking system – multi-point locks for enhanced security
- Energy efficient – tight seal when closed to prevent draughts

Why Choose a Casement Window?
Here’s why so many homeowners love casement windows:
1. Excellent Ventilation
Casement windows can open fully, allowing you to direct fresh air into your home – especially useful in kitchens or bathrooms.
2. Unobstructed Views
With no sash bar running through the middle (like with sliding windows), casement windows give you a clear, uninterrupted view of the outside.
3. Energy Efficiency
The seal around a casement window closes tightly when shut, helping to keep your home warm in winter and cool in summer.
4. Easy to Operate
Ideal for hard-to-reach spots like above sinks or in smaller rooms – the handle makes them easy to open and close.
5. Customisable Designs
Available in a wide range of sizes, colours, materials and glazing options to suit traditional or modern homes.
Where Are Casement Windows Best Used?
Casement windows are extremely versatile and suit most rooms in the house. They work especially well in:
- Living rooms and bedrooms for light and air
- Kitchens or utility rooms where ventilation is important
- Bathrooms when fitted with frosted or obscure glass for privacy
- Anywhere you want a clear view and strong energy efficiency

Casement Windows from Select Windows
At Select Windows, we supply and install high-quality uPVC casement windows across the West Midlands. All of our windows are made to measure, highly energy-efficient, and come in a wide range of colours and finishes to match your home perfectly.
We also offer acoustic glass, and security upgrades if you want extra personalisation and peace of mind.
Ready to Upgrade Your Windows?
If you’re considering new windows and want something that’s stylish, secure, and energy-efficient – a casement window might be just what you need.
📞 Get in touch today to book a free consultation and get a quote. Our expert team is here to help you choose the right style for your home.