Aluminium Casement Windows in South Wales

Aluminium casement windows are the cleanest, slimmest casement option on the market. The strength of aluminium lets us carry larger panes on much thinner frames than uPVC, so you get more glass, more light and a sharper modern look. We supply and fit across Bristol, Bath, Yate, Cardiff and South Wales with a 10-year manufacturer guarantee and our beat-any-quote promise.

Benefits

  • Ultra-slim sightlines: Frame sections as narrow as 70mm — typically 30% slimmer than equivalent uPVC casements.
  • Colour-fast for 25 years: Powder-coat finish in any RAL colour with a manufacturer-backed 25-year colourfast guarantee.
  • A-rated thermal: Thermally-broken aluminium profiles and argon-filled units deliver A-rated WER performance.
  • Larger panes possible: Aluminium handles spans uPVC simply can't — ideal for picture-window casements and feature openings.
  • PAS 24 secure: Multi-point locking, laminated glass options and Secured by Design accreditation as standard.
  • Low-maintenance: Wipe-clean powder-coat finish that won't fade, crack or need repainting.

Our aluminium casement windows range

  • Top-Hung Aluminium Casements: Hinged at the top, opening outward — ideal for ventilation in rainy Welsh weather.
  • Side-Hung Aluminium Casements: Traditional side-opening for maximum airflow and easy cleaning.
  • Fixed Aluminium Picture Windows: Non-opening panels that take advantage of aluminium's large-span capability for dramatic views.
  • Dual-Colour Finish: Anthracite grey outside, white inside — the most popular spec on Bristol and Cardiff homes.

Frequently Asked Questions

How much do aluminium casement windows cost?

Aluminium casements typically run 20–35% more than equivalent A-rated uPVC. The trade-off is much slimmer sightlines, larger possible panes, and a 25-year colour guarantee. We provide fixed written quotes within 24 hours of survey.

Are aluminium windows worth the extra cost?

For modern extensions, picture windows, or any property where sightlines and glass area matter, yes. For straight like-for-like swaps on a small Victorian terrace, uPVC often makes more sense — we'll give an honest recommendation on survey.

Do you fit aluminium casements in conservation areas?

Often yes — heritage-style aluminium casements with astragal bars satisfy many conservation officers across Bath, Bristol and Cardiff. Bring us your specific area conditions and we'll spec accordingly.

Free Quote in 24 Hours — We Beat Any Like-for-Like Quote

Get a fixed-price quote within 24 hours. Free home survey. 10-year guarantee. Call 02920 860894 or request a callback.