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
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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.
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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.
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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.
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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](/-/media/ahi/product-catalogue/windows/products/windows-casement-upvc/gallery/light-brown-woodgrain-upvc-window-double-glazing.jpg?mh=727)
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
Golden Oak
Dark Woodgrain
White Woodgrain
Dual Anthracite Grey
Dual Cream
Dual Dark Woodgrain
Dual Golden Oak
Dual 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.
uPVC Windows Explained
![UPVC casement window with double glazing finished in Golden Oak woodgrain effect from Anglian Home Improvements](/-/media/ahi/product-catalogue/windows/products/windows-casement-upvc/gallery/light-brown-woodgrain-upvc-window-double-glazing.jpg?mw=640&hash=D7A823A6CDE6D39773A04934ACC56658)
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](/-/media/ahi/product-catalogue/windows/products/windows-casement-upvc/gallery/anthracite-upvc-windows-and-composite-door.jpg?mw=640&hash=0B05796228CFD8AF6B243B03A2145EAE)
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.
Choose Anglian for a National Company Local to you
10-year Guarantee
A 10-year parts and labour guarantee is included in your Anglian double glazing price.
Made in Britain
Our products are made from start to finish in a British factory by skilled craftspeople.
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?
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](/-/media/ahi/product-catalogue/windows/products/windows-bay-upvc/gallery/white-upvc-bay-window-guttering-bungalow.jpg?mh=455&mw=693)
Get Inspired and Learn More about New uPVC Windows
Do new Windows Add Value to your Home?
Learn why it's worth considering new double or triple-glazed windows to attract homebuyers.
Find out moreShould you get Double or Triple Glazing?
Explore the differences between double and triple glazing to decide which is right for your home
Find out moreChoosing the right Window Material
Discover our range of finishes and colours to give your windows the perfect look.
Find out moreWindow Energy Efficiency
Find out the difference between an A++ and an E-rated window and why we install A-rated as standard.
Find out moreYour Questions on uPVC Windows Answered by Us
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.
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.
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.
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.
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.
uPVC windows are very secure, offering strong frames, anti-burglar devices, and multi-point locking systems. Find out more about Anglian window security.
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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