Aluminium Windows in Llanishen

Llanishen (CF14) · Cardiff · Free quote in 24 hours · 10-year guarantee · We beat any like-for-like quote

Whether you're in central Llanishen or out toward the edge of the CF14 catchment, our crews quote slim-frame aluminium casements on every brief that lands. Llanishen itself has a distinct character. Llanishen is a large north Cardiff suburb with a reservoir, good schools and diverse housing. From 1960s detached homes to modern estates, window and door upgrades are common improvements. On a aluminium casement install here we typically specify OW-70 and OW-80 Origin systems with slim 70mm and 80mm sightlines, which maximises the glass area on bay windows and bi-fold flanker units without losing thermal performance. All RAL colours available with no upcharge, including textured and dual-colour finishes. If you've had a quote from us in Thornhill Cardiff or Lisvane recently, you'll know we're already in the area most weeks. Every quote is itemised line-by-line — frames, glass, hardware, fitting and certification — no bundled lump sums. 20-year frame guarantee — the longest in the residential aluminium window market.

Aluminium windows deliver the slimmest frames and largest glass areas of any window material. Their natural strength means frames can be incredibly narrow while still supporting large panes — perfect for contemporary homes, extensions and bi-fold configurations where maximum light and views are the priority.