Product Comparisons
Aluminium vs uPVC Windows
The short answer
Aluminium gives slimmer frames, more glass and a crisper architectural look, at a higher cost. uPVC is typically more affordable and suits many traditional homes, especially in flush or heritage profiles. The right choice depends on the house, the look you want and budget.
Windows in the Dales editorial team · Published 25 September 2026 · Reviewed 25 September 2026 · Next review March 2027
Key takeaways
- Aluminium: slimmer, stronger, higher cost
- uPVC: lower cost, broad style range
- We supply both
Aluminium's strength means large panes with slim frames. uPVC frames are usually bulkier for the same opening, though flush profiles narrow the gap.
When it works well
- Aluminium: extensions, large openings, contemporary homes
- uPVC: cottages and terraces on a budget
When it may not
- uPVC on listed buildings
- Aluminium where a timber look is expected
Common mistakes
- Comparing on price alone