Masterframe has been in business for 31 years and is the only true "specialist" sash window manufacturer in the country. We are all about sash windows, however, although you’ll see many of our photographs used on the GGF sites and we've been GGF members since 1997, you won’t find us on myglazing.com because as a trade manufacturer (we don’t install) we cannot be listed. Each year we must stay ahead of the competition, so each year we develop new and exciting features like Timberweld®, Georgi-clips® and bespoke GPR sections. Dedicated to retaining the elegant proportions through continuous innovation, creative flair, passion and design, 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, but there are good reasons for that, not least because we include far more. We’re happy to explain differences, the standards we set ourselves, the attention to detail we insist upon and gladly provide a wealth of testimonials from clients who trust us with their orders. You decide the specification which suits your needs best, the benchmark you expect new windows to attain, using only the features that you believe are right for your project. Our job is to help you understand what the important features are and the choices you have, like:

• Patented Timberweld® technology for perfectly sealed corners
• Choice of three trade ranges with exclusive profile systems
• Exclusive London sash and frame design
• A rated for energy efficiency
• Secured by Design

We would be delighted to help you further with your project.

• Low maintenance PVC-U sash windows
• GRP fibreglass windows
• Box Sash Vertical sliders
• Suitable for Conservation areas