uPVC Windows

As a leading uPVC window supplier in Portsmouth, Window Warehouse manufactures the highest quality double glazed uPVC windows for trade professionals and homeowners. Our range of classic and modern uPVC windows is perfect for all manner of home improvement projects. For a bespoke uPVC windows quote, get in touch with our friendly team.

Types of uPVC Windows

We offer a variety of window types, including uPVC casement windows, flush sash windows, bow and bay windows and French windows. Choose high-performance uPVC products which are energy efficient and comply with building regulations.

Order supply only uPVC windows. We provide uPVC windows which can be professionally installed by our highly skilled network of window installers across Hampshire and the South Coast, including Portsmouth, Bournemouth , Bognor Regis , Bath , Salisbury, Southampton and surrounding areas.

You might also be interested in our high-performance range of aluminium windows.

Casement Windows

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Bow & Bay Windows

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Flush Sash Windows

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Imagine Vertical Slider

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French Windows

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Fully Reversible Windows

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Tilt & Turn Windows

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Heritage Flush Collection by Deceuninck

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black windows
upvc windows online
green upvc windows
upvc house windows
upvc windows supply only
choose a bow or bay window

Design your uPVC Window


The uPVC window designs can be customised to suit your home. View our uPVC window products to choose from a wide range of stunning window colours, finishes, window handles and window frame profile options. You can also explore our gallery to find inspiration for your beautiful new uPVC windows!

Regardless of the style you choose, you can be sure of our uPVC windows' quality, which are manufactured bespoke to your specifications.

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We offer Kubu Smart Security on your uPVC Windows


Protect your home with our high-security uPVC windows - now available with Kubu Smart technology as standard.

Discover how Kubu smart technology can make your uPVC windows even more safe by letting you know whether or not your windows are securely locked.

You can also watch a range of our product videos and stay up to date with our latest high quality double glazing products.

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Frequently asked questions

Can’t find the answer you’re looking for? Reach out to our customer support team.

How good are uPVC windows?

uPVC windows are energy efficient and long-lasting, so they require minimal maintenance and can save you money on energy bills. They are also easy to clean, needing little more than an occasional wipe of a cloth to stay pristine. What's more, they are weather-resistant and will not rot like wooden windows. Nor will you see unsightly peeling paint which can make a property look tired.

Will uPVC windows look right on my property?

uPVC windows can suit any property, from traditional cottages to new builds. They can be customised with traditional profiles or hardware, such as antique handles or astragal bars. You can also choose a woodgrain effect to mimic the look of wooden windows. Contemporary buildings look fantastic with modern black windows or minimalist window styles.

Are uPVC windows secure?

It's important to choose secure windows to protect your home. With rigorously tested secure locking systems and double or triple glazing adding additional layers of protection against intruders, we offer some of the best uPVC windows for security. Kubu smart technology is also offered as standard.

How much does it cost to install double glazed uPVC windows?

We can provide a fast, bespoke uPVC windows quote to help you estimate the cost of new windows. When you choose uPVC windows, you could significantly reduce your annual energy bills and add value to your home.

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