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  • Traditional appearance
  • Wide choice of colour finish options
  • An optional choice of horn detail and Georgian bars available to maintain a historic appearance
  • Energy-efficient glazing
  • Choice of cill sizes and Trickle vents available
  • British standard approved
  • Fully Guaranteed

Mock Sash Windows

What Are Mock Sash Windows?

Timber Mock Sash Windows are a popular choice for those who want to keep the authentic look but avoid the higher cost of a traditional sliding Sash Window.

Our engineered softwood and hardwood Mock Sash windows have the same look like traditional timber Sash Windows but operate in an entirely different way. Instead of the sashes sliding up and down, the top sash is hinged at the sides. This allows the sash to be opened outwards like a Casement Window.

We offer two types of Mock Sash windows. The most popular type looks really similar to traditional sash windows. And can have a fixed bottom wing or sliding bottom sash, which operates with a spring balance system; and the other type is based on a stormproof range of casement window designs. Our Mock Sash windows guarantee a durable, secure and energy-efficient solution.

Why choose Timber Sash Windows?

Our timber sash windows have been carefully designed to ensure that frames, meetings rails and glazing bars reproduce the traditional form as closely as possible. You can get the look of an authentic timber box sash with all the modern benefits. Timber-framed windows can contain double or triple glazed glass to ensure sound and heat insulation but offer that classic, heritage feel. Not only do they look beautiful, precision crafting and advanced technology mean that they’re highly energy-efficient, easy to operate, secure and rattle-free.









Mock Sash Traditional Flush

Mock Sash Tilt&Spring 50-45

Mock-Case Stormproof

Mock Sash Traditional Flush

Mock Sash Tilt&Spring 50-45

Mock-Case Stormproof


Mock Sash Traditional Flush

Mock Sash Tilt&Spring 50-45

Mock-Case Stormproof SW56

Technical Drawings

Mock Sash Traditional Flush

Mock Sash Tilt&Spring 50-45

Mock-Case Stormproof SW56

View Our Gallery

For more inspiration explore our window  and door galleries. Visit our window gallery »

Let’s get started…
Get a FREE no-obligation Quote

You can schedule your free no-obligation quote by either filling in the contact form, emailing us or also making a call. If you have any queries and would like to discuss your exact requirements, we will be happy to help. Please note, that a site visit without an initial quote is not free of charge. A deposit is applicable, but it’s refunded after you place the order.

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Take our comprehensive range of timber windows and doors away with you.

Complete our enquiry form

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Our friendly and professional sales team are here to answer your questions.


01322 332237

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We operate a nationwide service and will never turn down enquiries from the whole of the UK. But as our office is located in South East London, we attract enquiries from surrounding areas, where we not just supply but also install our timber mock sash windows (London, Kent, Sussex, Surrey, Essex etc.).

If you’re looking for some standard sizes of Mock Sash windows, check our store and maybe you’ll find what you need.

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