Double Glazed Windows
You can be confident that you're installing high-quality double-glazed windows when you choose Anglian. Our double-glazed windows are individually crafted with new glass, frame and security technology in mind, and will help your home not only transform the look of your property, but make it more energy efficient, too. With more than 50 years’ experience behind us, we're market-leading specialists with a reputation for offering our customers the best in attractive, energy-efficient windows.
- 10 year guarantee
- Established in 1966
- Made in Britain
For almost half a century, we’ve been developing and installing double glazing in houses across the UK, helping to make homes warmer and more secure. Whether you’re replacing original windows in an older property or trying to reduce your heating bills with energy-efficient glazing, we’ve got a window that’s right for your home.
Our double-glazed windows will not only make your home feel cosier, but they’ll also give it a facelift and transform the look of the property immediately. Each of our double-glazed windows is A-rated as standard and feature two equal 4mm glass panes separated by a 16mm cavity. This helps to achieve excellent heat retention and deliver a high level of 31dB sound insulation to help dampen outside noise. We also offer further sound-reducing window options.
Double-glazed windows from Anglian are incredibly customisable and are available in a choice of materials, styles and colours. Regardless of which product you choose, all of our frames are incredibly energy efficient, with a minimum B-energy rating, surpassing the Building Regulations’ requirement of a C rating. Most of our double glazing achieves an A rating as standard, though A+ rated windows are also available. This means your home could actually gain more "free" heat than it loses, resulting in much lower heating bills. If you're looking for A++ performance, our triple-glazed windows offer even higher levels of performance.
Explore Window Styles
Casement
Our best-selling style is a versatile choice for your home.

Flush
Modern design technology with a clean and simple look.
Bay
Casement panels that maximise light and space in any room.
Tilt and turn
Designed for easy cleaning and superior ventilation.
Cottage
The perfect blend of tradition and energy efficiency.
Sash
Add elegance and period grandeur to your home.
We design every window with our three values in mind
Security
Your security is of paramount importance, so at Anglian we manufacture windows to reflect this. Each window is made with robust multi-chambered uPVC with welded joints for added strength against forced entry.
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Energy Efficiency
All our windows achieve a high energy rating, with triple glazing guaranteeing maximum performance. With recent advancements in glass technology, our windows are more energy efficient than ever, saving you money on heating bills and helping to cut carbon emissions.
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Sound Reduction
All our A-rated windows provide a sound protection level of 31dB, however our "Safe and Sound" range goes further for those living by busy roads, flight paths and railways.
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Why Choose Anglian?
The Benefits of Anglian Glazed Windows mean that we'll guide you through the process from start to finish, offering expert guidance and quality products. At Anglian, all our windows are made to measure and meet or exceed all industry standards. We also offer lengthy guarantees that we're confident you won't need to call on.
Guarantee
With top-grade materials and skilled craftsmanship backed by our guarantees, you know you can rely on Anglian:
- 10-year guarantee on uPVC, wood and aluminium
- 5-year guarantee on stained wooden windows
- 15-year guarantee on our Ultra gas filled units
- Additional Glass & Glazing Federation (GGF) protection
Customer Reviews
These are selected reviews. All reviews are available on Trustpilot.
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Windows FAQs
Find out more about double and triple glazing in our useful Window FAQs Section or read our articles below
- How does double glazing work?
- What are the benefits of glazed windows?
- Can Windows Add Value To Your Home
Anglian FAQs
Got questions about choosing Anglian? Find out why Anglian is the right choice for your replacement windows.
Find out more6 steps to your new windows
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