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Double Glazed Windows

Anglian double-glazed windows help keep your home warm, quiet and safe. Our double-glazed uPVC windows, wooden windows and aluminium windows come in a variety of styles and colours to suit your home.

Our windows are Made in Britain with A++ to B energy performance ratings across the range of double glazing and triple glazing. Our top-performing A++ rated triple glazed windows are designed with energy-saving glazing technology to reduce heat loss even further.

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Transparent and Affordable Prices

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Our Price Match Promise

We all want quality products at the best prices. So if you find cheaper like for like uPVC windows with another company within 7 days, we’ll match the price.

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Double glazing on finance

Finance makes it easy to upgrade your windows now and spread the cost. Available from just £249 deposit with 12.9% APR.

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Double glazing prices explained

Unlike other manufacturers, our windows are made to measure. The price you pay is unique to your project.

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The UK's No.1 Home Improvement Provider

Anglian stands proudly as the UK’s Number 1 home improvement provider. Every year we help more customers improve their home than anyone else.

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10-year Guarantee

A 10-year parts and labour guarantee is included in your Anglian double glazing price.

Made in Britain

Made in Britain

Our products are made from start to finish in a British factory by skilled craftspeople.

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Price Match

If you find cheaper like for like uPVC windows elsewhere, we'll match the price.

Benefits of Double Glazed Windows from Anglian

  1. Energy Efficiency

    Our double glazing windows have energy ratings between B and A++. These are awarded by the British Fenestration Ratings Council, the most trusted ratings body in Europe.

  2. Huge Range of Materials and Styles

    Choose between three popular high-quality materials and a wide range of styles for your new windows. We help you create the perfect double glazed windows for your home.

  3. Lengthy Guarantees Across Product Ranges

    We offer an insurance-backed 10-year guarantee on parts and labour on all our frames and a 10-15-year guarantee on sealed glass units.

  4. UK’s No. 1 Home Improvement Provider

    Anglian stands proudly as the UK’s Number 1 home improvement provider. Every year we help more customers improve their home than anyone else.

  5. Accreditations and Certificates

    Our double glazed windows carry accreditations from over 12 industry bodies. We also have 12 BSI’s for quality across our ranges and several BBA certificates too.

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Double Glazed Windows vs Sealed Glass Units

Double glazing is quite a niche subject at the best of times, with lots of terms to get your head around. What are sealed glass units and how is that different from a double glazed window?

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Double Glazed Window

When we talk about double glazing, we usually mean the full window. This includes the glass, the frame and everything that goes into windows. Our 10-year guarantees refer to the frame, covering parts and labour.

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Sealed Glass Unit

When we say sealed glazed unit, we mean the glass in the frame. This consists of a spacer bar, two glass panels, the void between filled with inert gas and an airtight seal around the edge. This unit goes into the frame and makes up a double glazed window.

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Common Questions about Double Glazing

How long does double glazing last?

On average, double-glazing windows can last between 20- 25 years, with many lasting even longer. The lifespan of double glazing can be extended with proper care and maintenance, such as cleaning the frames and glass regularly and checking for any signs of wear and tear. Look for companies with long guarantees such as Anglian, as this can be a good sign of the expected lifespan.

How much does double glazing cost?

The cost of double glazing can vary depending on several factors, such as the size and type of the window, the material of the frame, the type of glass used and the installation costs. As a general guideline, the cost of double glazing for a standard-sized window can range from a few hundred to a few thousand pounds, depending on the above factors. But it's important to note that the cost can be higher for larger or more complex windows, or for windows made from premium materials.

Is triple glazing better than double glazing?

Triple glazing is generally more efficient at reducing heat loss than double glazing, but it may not always be necessary or cost-effective. The exact energy savings achieved by triple glazing will depend on a variety of factors such as the climate, the orientation of the windows, the building's insulation, and the efficiency of the heating and cooling systems in your home. In some cases, double glazing may be enough to meet energy efficiency standards, especially if you have other energy-saving measures such as wall insulation.

What does double glazing do?

Double glazing is a type of window that consists of two panes of glass with a small gap between them. The gap is filled with air or an insulating gas like argon. The two panes of glass act as a barrier to reduce the amount of heat that is transferred through the window. This provides increased insulation, which can help to reduce heat loss from your home and improve energy efficiency.

How does double glazing reduce heat loss?

Double glazing reduces heat loss through the window by creating a barrier that slows down the transfer of heat. Heat can transfer through a window in several ways, including conduction, convection, and radiation. The two panes of glass and the air gap between them work together to reduce the amount of heat that is transferred through the window. This means double glazing helps to keep your home warmer in the winter and cooler in the summer, which can result in lower energy bills and increased comfort.

Made in Britain
10-year guarantee
UK's Number 1
Home Improvement Provider
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Our Accreditations and Licenses

  • British Board of Agrement accreditation for uPVC windows from Anglian Home Improvements
    The British Board of Agrement provides certification on the quality of our products.
  • Anglian’s PVC-U Casement and Tilt & Turn windows have enhanced security performance.
  • BFRC logo
    The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows.
  • FENSA logo
    The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales.
  • FSC standalone logo TIF green
    Look for our FSC® certified wooden window and door products on our website.
  • Glass and Glazing Federation logo
    Anglian is a leading member of the Glass and Glazing Federation (GGF).
  • Recovinyl Plus logo
    PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices
  • TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.