What’s the difference between slimline aluminium windows & uPVC slimline windows?

4 min read Windows

The main similarity between slimline aluminium windows and uPVC slimline windows are the frame depths. They are both beautifully slim, resulting in a sleek, contemporary appearance and windows that allow huge amounts of natural light into the home.

However, this is where the similarity ends. So, as we install both types of windows, we thought we would take a closer look at their differences to help you decide which you prefer.

Slimline aluminium windows

anthracite grey aluminium slimline window

Because of aluminium’s incredible natural strength, slimline aluminium windows have been around for some time. However, advancements in technology mean they now offer a wealth of additional benefits, including impressive thermal efficiency and energy-saving capabilities:

  • To prevent heat from escaping the home, slimline aluminium windows are equipped with insulating polyamide barriers, ensuring impressive thermal efficiency. This leads to lower energy bills and more comfortable living spaces due to their enhanced heat retention.
  • High-quality aluminium profiles, sourced from leading manufacturers, ensure our aluminium windows are not only durable but require minimal maintenance.
  • Aluminium has an anti-corrosive layer, preventing the material from rusting. Our aluminium windows are also finished in ultra-durable powder coatings that are guaranteed for 25 years against fading or loss of gloss. The occasional wipe down is also all aluminium material needs to stay clean, looking and performing its best during this period.
  • Powder coatings are available in a wide range of colours, including any RAL colour, so a huge range of looks can be created, with a dual colour of say white on the inside and anthracite grey on the outside.
  • Pairing aluminium’s natural robustness with shootbolt locking systems and a high-security interlocking glazing bead system ensures slimline aluminium windows offer exceptional security. They come with Secured by Design accreditation as standard.

uPVC slimline windows

Slimline uPVC Kitchen Window

Although slimline frames are traditionally associated with aluminium windows, our uPVC slimline windows - designed exclusively by us - are some of the first to buck this trend allowing more natural light into your home.

Along with 12% more glass than standard uPVC windows, you can expect a wide range of great features:

  • 5 chambers are present in the profiles of uPVC windows, the purpose of which is to actively trap more heat. Combining this with the natural insulation qualities of uPVC, they can achieve A+ Window Energy Ratings – some of the best around.
  • uPVC material is highly resistant to discolouration due to UV exposure. As it can also be cleaned with just a simple wipe down, you can expect the windows to look great year after year.
  • Available in a selection of heritage woodgrain effects, which give uPVC material the rich appearance of natural timber, they are well suited to period properties, old cottages, and other traditional homes. However, they come in a range of contemporary colours too.
  • For complete peace of mind, we fit these windows with a variety of leading security hardware: multipoint shootbolt locks, security glazing, and hinge protectors.

Aluminium and uPVC windows installed across Guildford, Woking, Surrey & beyond

We hope this helped you determine whether your dream windows are a uPVC slimline window or a aluminium window, whichever you choose, they will the perfect fit for your home.

So, if you are interested in either set, get in touch with us here at Sheerwater Glass today. We are available to call on 01932 344 415 or you can contact us online.

All our glazing options and installations comply with current building regulations, ensuring you a high performance product for your home.

More about Slimline Windows

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