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uPVC Windows

uPVC windows from Anglian are secure, easy to maintain and have excellent energy ratings. Our uPVC window frames are available in casement, flush, sash, tilt and turn and fully reversible styles. Customise your bespoke windows with wide range of uPVC frame colours and design features.

Retain more warmth with our A or A+ uPVC double glazed windows, or upgrade to A++ triple glazed flush windows. We create your made-to-measure uPVC windows to your specifications right here in the UK and our skilled installers fit them for you.

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uPVC Window Styles

Whether you’re upgrading your existing windows for more energy efficiency or to boost your curb appeal, customise your new uPVC windows to suit your home.

Reasons to Choose uPVC Windows

  1. The Most Energy-efficient by Design

    Our modern uPVC windows are energy efficient, with A-rated double glazing as standard. This helps your home feel comfortable all year round. Our uPVC frames can be upgraded to triple glazing to achieve the highest energy efficiency rating of A++, helping to reduce your energy bills.

  2. Secured by Design Accredited

    Our uPVC Casement windows, uPVC Flush Casement, Elite Sliding Sash and Tilt & Turn windows are accredited by Secured by Design – a police initiative which aims to 'design out' crime. Our uPVC window frames have multipoint locking and design features to prevent glass removal from the outside.

  3. Durability Guaranteed

    uPVC is our most durable window material and carries a 10-year frame guarantee. Anglian White Knight uPVC casement windows hold the BBA accreditation, meaning they can last over 35 years.

  4. Manufactured by Us

    We create, or extrude, our own uPVC window frames for our stormproof casement and tilt & turn windows at our Norwich factory. Making our own uPVC frames means we have complete control over their quality from start to finish.

UPVC casement window with double glazing finished in Golden Oak woodgrain effect from Anglian Home Improvements

uPVC Window Colours

Our uPVC windows come in a beautiful array of colours so you can easily find the perfect look for your home. Go for classic white with our exclusive White Knight formula or make a statement with a bold black uPVC window.

  • White Knight colour swatch from the Anglian window coloursWhite Knight
  • Golden Oak colour swatch from the Anglian window coloursGolden Oak
  • Dark Woodgrain colour swatch from the Anglian window coloursDark Woodgrain
  • White Woodgrain colour swatch from the Anglian window coloursWhite Woodgrain
  • Dual Anthracite Grey colour swatch from the Anglian window coloursDual Anthracite Grey
  • Dual Cream colour swatch from the Anglian window coloursDual Cream
  • Dual Dark Woodgrain colour swatch from the Anglian window coloursDual Dark Woodgrain
  • Dual Golden Oak colour swatch from the Anglian window coloursDual Golden Oak
  • Dual Sage Green colour swatch from the Anglian window coloursDual Sage Green

Customer Reviews

Compare uPVC Window Energy Ratings

Compare the energy ratings of our most popular our uPVC window styles in the table below, to get an idea of how they can benefit your home and keep it comfortable across the year.

BFRC Rating
The BFRC are the most trusted window and door energy performance assessors in the UK.
A++ energy rating
A+ energy rating
A energy rating
B energy rating
BFRC Rating
The BFRC are the most trusted window and door energy performance assessors in the UK.
A++
A+
A
B
uPVC Casement
BFRC Rating
The BFRC are the most trusted window and door energy performance assessors in the UK.
A++
A+
A
B
uPVC Flush
BFRC Rating
The BFRC are the most trusted window and door energy performance assessors in the UK.
A++
A+
A
B
uPVC Sash
BFRC Rating
The BFRC are the most trusted window and door energy performance assessors in the UK.
A++
A+
A
B
uPVC Tilt & Turn Windows

uPVC Windows Explained

UPVC casement window with double glazing finished in Golden Oak woodgrain effect from Anglian Home Improvements

What is uPVC?

uPVC (unplasticised polyvinyl chloride) is a type of plastic used to manufacture window and door frames. The term ‘unplasticised’ means that two plasticisers have been removed, which is what gives uPVC its strength and durability. It’s also weatherproof, low maintenance and can be fitted with double or triple-glazing. Our uPVC windows are available in a range of different colours and styles.

Anthracite uPVC windows and composite door

How to Clean uPVC Windows?

uPVC is a durable and robust material. It won’t rust, rot, or flake, and it’s able to retain its shape. uPVC window frames are also easy to clean and maintain. Simply wipe with a damp cloth for everyday cleaning. Soap and water are usually enough.

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Guarantees

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.

What Should I Look For in uPVC Windows?

white windows
Energy Efficiency
Security

Consider things like a Secured by Design accreditation

Guarantees

Choose a company that offers insurance-backed guarantees on frames, parts, labour, and the glass unit.

Accreditations

Choose windows from a company that holds accreditations for standards and quality from industry bodies and British standards.

Design

Make sure the style and colour of the uPVC window suit your home.

How Can I Tell the Quality of My uPVC Windows?

Low-quality uPVC frames are often thinner, whilst thicker frames tend to indicate better durability and insulation. Also look for things like condensation on your existing windows, any wear and tear on the frames, and increased noise in your home. Poorly fitted uPVC windows may let more draughts into your home, and you may have higher energy bills. Look at the thickness of the sealed glass units – the thinner the gap between the panes, the more likely they are to be low quality.

Bungalow with White UPVC bay casement window and roofline guttering and fascia from Anglian Home Improvements

Get Inspired and Learn More about New uPVC Windows

Your Questions on uPVC Windows Answered by Us

How much do uPVC windows cost?

The average cost of uPVC windows will vary depending on the size and style of the window, energy-efficiency rating, installation fees and the quality of the brand you choose. uPVC casement windows tend to be the most cost-effective option. When you get new uPVC windows through Anglian, the installation and any other work required is included in the price, so there are no hidden costs.

How long do uPVC windows last?

Depending on the quality and maintenance, uPVC windows can last for up to 20-25 years, with some windows lasting even longer. White uPVC windows in casement and tilt and turn styles from Anglian hold the BBA accreditation, which means they can last more than 35 years with the proper care.

Is there a difference between uPVC and PVC?

Although they sound similar, uPVC and PVC are different. uPVC (unplasticised polyvinyl chloride) is stronger than PVC (polyvinyl chloride) which is more flexible. PVC contains two plasticisers – BPA and phthalates – which are removed in the uPVC manufacturing process. This is why uPVC is called unplasticised. Removing the two plasticisers makes uPVC much stronger and far more suited to windows, doors and building materials.

Can modern uPVC windows be fitted to existing wooden frames?

While retrofit installations do happen, we do not recommend that you leave existing wooden frames in place when fitting new uPVC windows. There are some big drawbacks including mismatching aesthetics and a decrease in the size of the window opening. We replace your existing window frames during the fitting process, regardless of your window frame material. Installing modern uPVC windows together with new frames ensures a perfect fit and the best thermal efficiency.

How can I tell the quality of my uPVC windows?

Low-quality uPVC frames are often thinner, whilst thicker frames tend to indicate better durability and insulation. A great wat to tell the quality of a uPVC window is to see how many accreditations are attached to it for quality, security and energy efficiency. The more accreditations, the better quality the window tends to be. Be sure to also use companies with endorsements and memberships of official industry bodies. Look out for energy efficiency ratings too – as higher ratings indicate higher quality construction.

How secure are uPVC windows?

uPVC windows are very secure, offering strong frames, anti-burglar devices, and multi-point locking systems. Find out more about Anglian window security.

What is the difference between uPVC and aluminium windows?

uPVC and aluminium frames both offer great options for modern windows, but aluminium frames tend to be more expensive. Aluminium window frames are generally more durable and weather resistant, though uPVC offers more energy efficiency.

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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.
  • $name
    TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.
  • Glass and Glazing Federation logo
    Anglian is a leading member of the Glass and Glazing Federation (GGF).
  • Made in Britain logo
    Certifies products made from start to finish in a British factory by British craftspeople.
  • The Glazing Arbitration Scheme Logo Anglian Home UK
    Independent service that deals with disputes between registered businesses and consumers.