What are uPVC windows? Benefits, features and buying guide

It’s the question you’ve likely asked yourself during the search for replacement glazing, with experts across the nation praising the material’s thermal performance, durability and customisable appearance.

uPVC stands for unplasticised polyvinyl chloride, and is a strong synthetic material used to make modern window frames, as well as doors, roofing and extensions.

At Amazing Glazing, we’ve spent over 15 years fitting uPVC windows for homes across Kent. We love them because they offer great energy efficiency, low upkeep and loads of design options at an affordable price, making them the UK’s most popular frame material. We’ll explore them in depth below, whilst helping you to pick the right style for your property.

What are uPVC windows?

uPVC windows are made from unplasticised polyvinyl chloride (sometimes written as unplasticized polyvinyl chloride). It’s a rigid type of plastic that doesn’t contain softening chemicals, which makes it strong, weather-resistant and perfect for window frames. Once constructed, it can be reformed several times, a characteristic that make it an environmentally friendly choice.

The material is heated, shaped into frames and reinforced to create durable uPVC window frames. Because it’s easy to manufacture and widely available, it’s a less expensive option than timber or aluminium windows, without being a quality compromise.

You’ll also find polyvinyl chloride used in:

• Plumbing pipes
• Roofline products
• Doors, including uPVC doors and composite doors

In the UK, uPVC is the number one material for windows and doors, making it the preferred choice for replacement windows and new windows alike.

What are the benefits of uPVC as a window material?

uPVC plays a key role in modern home improvements because it ticks so many boxes. Here are the main advantages of uPVC windows.

Thermal performance and energy efficiency

Energy efficiency means how well your windows stop heat escaping in winter and keep heat out in summer. Good windows reduce heat loss, which lowers your energy consumption and can cut your energy bills.

Our modern uPVC windows can achieve A or A+ ratings. with U-values as low as 1.0 W/m²K, which is excellent for thermal efficiency. According to the Energy Saving Trust, upgrading old windows to energy-efficient double glazing can save hundreds of pounds over time.

Low maintenance

Unlike wooden windows, uPVC doesn’t need sanding, painting or varnishing. There’s no regular maintenance involved.

To clean them, all you need is:

• A damp cloth
• Mild detergent

That’s it. This ease of maintenance is one of the biggest reasons uPVC is such a popular choice.

Durable and long-lasting

uPVC doesn’t rot, rust or warp. It stands up well to British weather and keeps its shape for decades. Our uPVC products come with a 10-year HomePro insurance-backed guarantee for total peace of mind.

Affordable without feeling cheap

uPVC is easier to produce than timber or aluminium, which makes it more affordable. It’s a great choice if you want high performance without the dizzying price tag.

Customisable for any look

From white grain to Chartwell Green, anthracite grey and black uPVC windows, there’s a huge range of colours and finishes. You can even choose woodgrain effects that copy wooden frames.

What style of uPVC window can I get for my home?

There are various types of uPVC windows. The main difference is how they open.

Casement windows

Casement windows open outwards on hinges at the side or top, and you’re unlikely to wander along any Kent street without seeing one.

Choose casement windows if:

• You want easy opening and great ventilation
• You like a timeless design
• You want strong draught-proofing
• You need a practical choice for most rooms

uPVC casement windows are the most popular style in the UK.

Flush sash windows

Flush casement windows sit flat within the frame to create a completely level appearance, a stunning style that has surged in popularity during the past 10 years.

Choose flush sash windows if:

• The aesthetic appeals to you (we don’t blame you!)
• You appreciate the simplicity of use
• You don’t want the upkeep of wooden frames
• You want a modern look with classic styling

Sliding sash windows

Also called vertical sliding windows, these slide up and down rather than opening out.

Choose sliding sash windows if:

• You live in a period-style home
• You want unobstructed ventilation
• Space outside the window is limited
• You like traditional windows without regular maintenance

Tilt and turn windows

These open in two ways: tilt in at the top for airflow or swing inwards for cleaning. They’re particularly popular in residencies across Europe, but are also found in hotels and other high rises in this country.

Choose tilt and turn windows if:

• You want easy cleaning
• Space is tight outside
• You want strong security for your home
• You want safe ventilation, particularly if you have young children

uPVC windows from Amazing Glazing

We supply and install:

• Casement windows
• Flush sash windows
• Sliding sash windows
• Tilt and turn windows

Our uPVC windows come in colours like:

Black, anthracite grey, golden oak, rosewood, white, agate grey, Chartwell Green, slate grey, clotted cream, white grain and much more.

Many of our windows achieve A or A+ energy ratings, helping reduce heat loss and lower energy bills. We use industry-leading, and every window is made to measure and fitted by our FENSA-approved team.

FAQs

Are uPVC windows a good choice for my home?

Yes. They’re affordable, low maintenance and energy efficient, making them a great choice for most homes in Kent.

How long do uPVC windows last?

Most last around 20 years or more. If you see condensation, mould or warping, it may be time to replace old windows.

Can I get triple glazing?

Yes, depending on the system chosen. Triple glazing adds extra insulation and noise reduction.

Who are Amazing Glazing?

We’re Amazing Glazing, expert window and door installers based in Whitstable, Kent. For over 15 years, we’ve helped homeowners across Kent and the South East with:

• uPVC windows
• uPVC entrance doors
• Composite doors
• French doors, sliding doors and bi-fold doors
• Conservatory insulation and roofline products

We’re FENSA approved, work with top suppliers like Yale, Eurocell and Pilkington and every installation comes with a 10-year insurance-backed guarantee.

We offer:

• Free measuring and consultation
• Free, no-obligation quotes
• Friendly, personal service

Ready to choose your new uPVC windows?

If you’re ready to make an informed decision about your new windows, our team is here with expert advice.

Call us on 0800 062 2103
Email info@amazingglazingkent.co.uk

Get your free, no-obligation quote
Visit us at Unit 107/108, Joseph Wilson Industrial Estate, Whitstable, Kent CT5 3SN

Let’s find the right uPVC windows for your home and give you comfort, style and peace of mind for years to come.