UPVC Casement Windows

uPVC Casement Windows

A timeless classic with genuine technical substance behind it, our uPVC casement windows are the UK’s most popular window style for good reason. Available in double or triple glazing, with U-values as low as 0.80 W/m²K, and in 18 colour finishes, they combine the character of a traditional sash with the performance of modern glazing. Whether you’re drawn to a classic flush casement for a period cottage or a contemporary chamfered profile for a new build, our range covers every look and every budget.

What Is a Casement Window?

A casement window is hinged at the side or top and opens outward on a handle, rather than sliding vertically like a sash window. It’s the most common window style in the UK, chosen for its excellent ventilation, tight weatherproof seal, and the sheer range of configurations available.

What sets a modern uPVC casement window apart from older timber or aluminium alternatives is the combination of a virtually maintenance-free frame with high-performance double or triple glazing, delivering warmth, security, and style in one package that never needs painting, sanding, or treating.

Types of Casement Windows Explained

Casement windows aren’t a single, fixed style. Understanding the different types helps you choose the right configuration for each room in your home.

Side-Hung Casement Windows

The classic configuration. Hinged on one side and opening outward, side-hung casements are the go-to choice for bedrooms, bathrooms, living rooms, and kitchens. Versatile and timeless, they suit both traditional and contemporary properties equally well.

Top-Hung Casement Windows

Ideal for smaller openings or high-level windows, a top-hung casement window opens outward from the bottom on a hinge along the top edge. The naturally limited opening angle adds a layer of safety, making this a popular choice for children’s bedrooms and windows above worktops.

French Casement Windows

Two side-hung vents with no central mullion, opening fully outward to create a wide, unobstructed aperture. A beautiful choice for garden-facing rooms, kitchen extensions, and period properties where character and ventilation matter most. French casement windows also make an excellent fire escape solution, meeting current building regulation requirements with ease.

uPVC Flush Casement Windows

The sash sits flush with the outer face of the frame, closely mimicking the elegant, slim profile of a traditional timber window. This is one of the fastest-growing styles we install, and it’s easy to see why: flush casement windows deliver the heritage look that period properties and conservation areas demand, without sacrificing an ounce of thermal or security performance.

uPVC Flush Casement Windows: Heritage Looks, Modern Performance

If you’re restoring a period property or simply want the crisp, slim sightlines of a traditional timber window, uPVC flush casement windows are worth a closer look. Unlike a standard casement, where the sash sits proud of the frame, a flush casement sits level with it, replicating the classic joinery look that conservation officers and heritage-conscious homeowners both favour.

The result is a window that looks the part on a Victorian terrace or Georgian townhouse, while still delivering A-rated energy efficiency, 20-year sealed unit guarantees, and multi-point locking as standard. It’s the best of both worlds: authentic kerb appeal with none of the maintenance headaches of real timber.