uPVC windows suit modern UK homes because they keep the heat in, help keep energy costs down, come with strong security fitted as standard and need very little looking after. They also resist rot and weathering, and cost less than materials such as aluminium. For anyone replacing old or draughty windows, that combination is hard to beat.
At Aim Windows, we supply and fit made-to-measure uPVC windows built on Eurocell and Rehau systems, two of the UK’s leading uPVC profile manufacturers. Here’s a closer look at the benefits of uPVC, and how it compares if you’re weighing up your options.
What makes uPVC windows so popular?
uPVC performs well across the areas homeowners care about most.
- Energy efficiency – strong thermal performance from frames that trap air and hold the heat indoors, so your home stays warmer and your heating bills stay lower.
- Security – multipoint locking and key-locking handles come as standard on every uPVC window we fit.
- Durability – uPVC frames do not rot, warp or corrode, so they keep their shape through wet British winters.
- Low maintenance – minimal upkeep is needed; a wipe with soapy water keeps them looking good, with no repainting or sanding required.
How much could new uPVC windows save on energy bills?
Modern uPVC windows use a multi-chambered design that delivers strong thermal performance, cutting heat loss by up to 30% compared with older double glazing. The Energy Saving Trust found that A-rated double glazing, the standard for uPVC, can save a typical semi-detached home around £85 a year when replacing single glazing.
For homes still fitted with older single-glazed or draughty frames, fitting new windows can make a real difference to energy costs over time.
uPVC compared with aluminium
We also fit aluminium windows, which have real benefits of their own:
- Slim sightlines and a contemporary look
- Strong long-term performance
Set against that, uPVC insulates just as well, needs almost no upkeep and costs less to buy, making it the better-value choice if cost is the main factor.
What uPVC window styles are available?
The right style depends on your property: a Victorian terrace calls for something different to a new-build flat, and how a window opens matters just as much as how it looks. Our uPVC range of styles covers five core options, each suited to a different type of home:
| Style | Best suited to |
| Casement | Most UK homes; over 30 colour options |
| Flush sash | Period and conservation area properties |
| Sliding sash | Georgian and Victorian terraces |
| Tilt & turn | Flats and hard-to-reach openings |
| Bay & bow | Front elevations needing kerb appeal |
Here’s a closer look at what each one offers.
Casement windows
A popular choice among UK homeowners, casement windows hinge at the side and open outward like a door, giving great ventilation and unobstructed views. They’re easy to operate and come in a wide range of styles and colours.
Flush casement windows
Sometimes called flush sash, these sit flush with the surrounding frame for a flatter, more traditional profile that echoes original timber windows, ideal for period properties and conservation areas.
Sliding sash windows
Slide vertically within the frame, keeping the classic proportions of Georgian and Victorian terraces while adding the insulation and security of modern uPVC.
Tilt & turn windows
Tilt inward from the top for gentle ventilation, or turn fully inward on a side hinge for easy cleaning and escape access, ideal for flats and hard-to-reach openings.
Bay & bow windows
Project outward in a curved or angled arrangement, adding extra space and letting in more natural light, a great way to boost kerb appeal.
Classic white is available across all styles, alongside a wide range of finishes and colours, including Chartwell Green, Anthracite Grey and authentic woodgrain foils.
Discuss your London window project
Ready to replace draughty, tired or hard-to-lock windows with made-to-measure uPVC? The team at Aim Windows is here to guide you through our full range of uPVC windows, colours and energy ratings.
Get in touch with our London team today to request a quote or visit our premises:
- Visit our showroom
- Call our specialists: 0207 537 0852
- Email our team: info@aimwindows.co.uk
- Contact us online: reach out directly through our online contact form to discuss your home improvement plans for peace of mind today.