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Driven by Innovation
Proud to be Traditional

WE ARE THE UK’S LEADING PVC-U WINDOW AND DOOR MAKERS

At Sierra Windows, we’ve been creating bespoke frames from our factory in Devon since 1976. Today, we combine good old-fashioned customer service with new and innovative solutions that have the power to transform homes and workplaces.

You can leave it with us. By choosing Sierra Windows, you’ll have access to a wide range of suppliers, many of whom will only work with larger businesses like ours. This enables us to offer everything you need under one roof. Each frame is crafted to order right here in Devon, and nothing leaves the factory floor until it meets our exacting standards.

We’ve obtained a wealth of experience during our forty years in the business and we’re happy to share that knowledge with you. Whether it’s a question about measurements, some advice on styles or a few fitting tips, talk to a Sierra Windows expert today.

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Looking for some help? Fill in our quick contact form below and one of our sales representatives will be in touch shortly!

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Windows

We can design virtually any frame for any installation, with an extensive range of styles, colours and opening features…

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Doors

Independently tested to ensure they meet (and often exceed) industry standards, Sierra doors are guaranteed to keep the sound out and the warmth in…

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Conservatories

Increase your product offering with beautifully crafted conservatories from Sierra. Discover our complete design to delivery service…

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