Traditional Timber Casement Windows

Within the Traditional Range we offer both stormproof and flush timber casement windows. Both designs incorporate dual weather seals that create a low pressure cavity which greatly contribute to the window’s excellent weather performance.

Security has been a priority in the development of our timber casement windows. Incorporating multi-point locking and security claws to provide exceptional strength to prevent forced access, casement windows can also be specified with security laminated glass.

All of our timber casement windows are supplied with a concealed friction hinge as standard. This hinge, which is invisible from the inside when the window is closed, retains the window firmly at a particular opening with no additional stays. Within some of our window furniture collections, we do offer casement stays but their specification is only for aesthetic purposes.

We offer a variety of opening options including side hung, top hung and French/False Mullion, supported by a choice of hinge type - see the Design tab for full details. On side hung casement windows, both our standard and restrictor hinge can be released so that the frame can be accessed for easy cleaning. We also offer a fully reversible hinge which allows the window to be completely rotated so that the outside of the glass is on the inside.

Download Technical Specifications

For Performance Data, CAD drawings and NBS Data visit our Technical Specifications page


Traditional Timber Casement Windows - Key Features

Glazing unit with astragal bars fitted

High Performance Glazing

As standard our timber casement windows are supplied with a high performance double-glazing system optimised for thermal efficiency, high light transmittance and acoustic performance.

Obscure glazing example

Glazing Options

To meet your precise project requirements we offer a broad selection of glazing options, including: solar control glass, safety glass, laminated security glass, decorative glass and obscure glass. Triple glazing is available.

Timber Coating Ral Colour Options

Paint & Stain Finishes

Whilst we offer a traditional colour palette, we can provide a colour match to meet your specific project requirements. All we require is a RAL colour or a physical sample which we can match too.

Example of casement window handle

Window Furniture

The look and feel of any casement window is influenced by the choice of furniture. We offer four window furniture collections to ensure you get the desired look – click on the Furniture tab to browse all options.

Casement Windows - Ease of Cleaning

Ease of Cleaning

On side hung casement windows, our standard and restrictor hinges can be released to allow the outside to be accessed for easy cleaning. We also offer a reversible hinge for top hung windows, allowing complete rotation so that the outside of the glass is on the inside.

Wooden casement window with astragal bar design

Astragal Bars

For traditional detailing we can incorporate astragal bars to the window design. As standard, external bars are manufactured from Accoya® and fixed into the sash, providing lasting performance.


We know that replacing wooden windows and doors can be a big undertaking, and so we offer a range of services to make the undertaking as simple and pain-free as possible.


Our industry leading manufacturer backed guarantees ensure that our windows and doors will last for many years.

  • 10 Year Glazing Unit Guarantee
  • 10 Year Hardware Guarantee
  • 30 Year Wood Preservative Guarantee
  • 7 Year Stain Coating Guarantee
  • 10 Year Paint Guarantee
  • 10 Year Weather Seal Guarantee