In Brief


Masterframe founder Alan Burgess pioneered a new direction for the design after helping create the UK’s first dedicated PVC-U box sash in 1984. Shortly afterwards, he set about creating a market for PVC-U sash windows.

As a sash window specialist, we do not manufacture any other products. We’ve been making sash windows for more than 32 years; this gives us a good handle on what makes perfection. We believe this makes us an authority on the subject and gives us a special enthusiasm and appreciation for sash windows that drive us forward in terms of product development and manufacturing the best timber alternative sash window product available.

Dedicated to retaining the elegant proportions of traditional windows through continuous innovation, creative flair, and passion, you can be confident we set extremely high standards with excellent craftsmanship and attention to detail.

You’ll find we’re not cheap. Indeed we’d go so far as to say we’re considerably more expensive than other sash window producers. That’s because we include more, do more and taking like for like, you can expect us to be excellent value for money.

You set the standards with your own specification, the benchmark you expect your new windows to attain, using the components you require and that you believe is right for your project. We will help you understand what is important and set out to exceed all expectations.

As conservation officers across the UK have found, if you decide to invest in our products, your perceptions of PVC-U will probably change for good.
Every component has been analysed, modified, and improved to make the most authentic PVC-U sash window possible. We’re passionate and dedicated to creating perfect styles and manufacturing truly authentic designs of traditional sash windows.

Since 1988 we have dedicated enormous resources into making sash windows that replicate the designs and recreate the magic that only this style offers. Ours are as true in appearance to the originals as it’s possible to be.

We will make any design of the sash window you need; we just want you to enjoy windows that work well, are energy efficient and secure, and provide years of trouble-free usage.
As a trade installer buying sash windows for clients, you will appreciate the comprehensive range of colours, styles, and designs you can offer. This will provide them with real choice, along with sensible pricing, delivered to you free on the UK mainland, on time and in full.

To find out more, visit our website or contact us directly.

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Contact details


Masterframe Windows Limited

4 Crittall Road

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+44 (0) 1376 510410