Bespoke Sash and Case Window Specialists



Welcome to Preservation Windows, we are the leading sash and case window specialists across Glasgow and Scotland. We are extremely proud of what we have accomplished and since establishment we have gained a well-earned reputation among architects, developers and homeowners for a service that is of the highest quality and exceptional standards.

The experienced team at Preservation Windows are committed to elevating your sash and case windows to achieve heat retention and energy efficiency while retaining the character of your period home.  

All of our sash windows are manufactured at our Glasgow-based workshop in Cumbernauld, Scotland by our expert tradesmen. The process at Preservation Windows couldn’t be simpler, initially we come and visit you to measure the size of the windows then our expert craftsmen manufacture your sash and case windows to your exact requirements and measurements making them truly bespoke to you. Our joiners then build your windows and sand them down to create a smooth finish. Finally you choose the finish of your windows out of our vast selection. That’s not all, our expert installers will deliver and install your new windows on a day that’s best for you.

If you are unsure whether sash and case windows are right for you, feel free to drop by our show flat in Glasgow's West End and our company Director Brendan will be able to answer any of your queries. Alternatively we can come and visit your home and give you a free quote for your windows, arrange a date with Brendan today!



Transform your home with beautiful sash and case windows which look fantastic, eliminate cold draughts and add value to your property. 


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The Woodhouse in Cherbruke was the perfect vacation home. The service is unparalleled. Thank you for making our experience spectacular!”