Purpose made timber casement windows

All our casement windows can be made in Accoya or softwood. With the option of traditional single glazing or energy efficient double glazing.

sash windows,timber sash windows,wooden sash windows

Double glazed casement windows.

  • 18mm – 28mm standard double glazed units or
  • slimline double glazed units with only 7mm slight line.
  • Patterned and sandblast obscure glass
  • Fully draughtproofed
  • Choice of ironmongery (White, Chrome, Gold)
  • Ball bearing hinges
  • Primed with Teknos primer

Single glazed casement windows.

  • 4-6mm single glass
  • Patterned and sandblast obscure glass
  • Toughened safety glass or laminated glass optional
  • Fully draughtproofed*
  • Choice of ironmongery (White, Chrome, Gold)
  • Ball bearing hinges
  • Primed with Teknos primer

Find out more about single glazing here


  • Flush casement windows
  • Stormproof casement windows
  • Curved windows
  • Arched top casement windows

Why choose our casement windows?

  • Hand made to your opening size.
  • Single or double glazed.
  • All windows come with draught proofing as standard.
  • Accoya or softwood.
  • Flush casement of stormproof.
  • Can match your existing windows exactly.

From just £500 per window


With our perimiter weather sealing system.

Accoya Casement windows

All accoya windows come with a 50 year rot free guarantee. Accoya is the world’s leading long life sustainable wood. Accoya delivers remarkable levels of performance, stability and durability.

We are a certified accoya joinery manufacturer.

More on Accoya and it benefits here

accoya joinery manufacturer
Part Q Logo

Part Q Compliant


To meet Part Q requirements, windows and doors must satisfy new standards of robustness, use approved hardware, and demonstrate proven security performance.


All our windows and doors can be manufactured to meet part Q regulations.


Anyone who requires planning permission to build, renovate or refurbish a residential dwelling – architects, builders, installers and building owners, including home-owners and property developers. For more information, visit www.planningportal.gov.uk

Download Part Q Document Here

Accoya Barn Windows And Doors Essex 21

Casement Windows London

Wooden casement windows are one of the most common type of window fitted in homes across the united kingdom these days. They consist of a series of openers in many styles of arrangements. Some of the sashes are going to be permanently fixed within the window itself, while usually the side windows and top windows can be hinged at one side so that they may be opened. We have a range of hardware within the form of handles and stays to complete the window style. Timber casement window history.

How we work

At Highgate Joinery, we can manufacture a wide range of casement windows, from traditional flush casement windows to match your existing windows, to slimline double glazed windows that are typically used in heritage and listed projects and standard double-glazed timber windows that are suitable for new builds or more modern homes. We can also make curved and arched windows as well as stormproof windows Just contact us and we will work with you to provide exactly what you need. Our windows meet UK building controls and has the additional advantage of giving present day age warm protection qualities with original look of bespoke timber windows. We are situated in Essex and provide deliveries all through the capital and surrounding areas.

Get in touch with us today and we will work with you to give precisely what you require.

Looking for sash windows? Check out our sash windows here.

accoya 50 year warranty