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uPVC Windows vs “Glass” Windows: Clearing Up the Confusion

People sometimes ask for “glass windows” versus uPVC — but these aren't alternatives. Here's the plain distinction.

Frame versus glass

uPVC is the frame material; glass is what goes in it. Every uPVC window has glass — so “uPVC or glass” is a bit like asking “car or engine”. The real questions are which frame material and which glass.

What people usually mean

Usually the question is uPVC frames versus aluminium or wooden frames, with the glass a separate choice. Or it's frameless/structural glazing, which is a different product for specific architectural uses.

The two real decisions

Look for this

  • Frame: uPVC, aluminium, or wood
  • Glass: plain, laminated, toughened, tinted, double
  • They're chosen separately, per opening
From our range

What we make

uPVC Sliding Windows

Multi-track windows that need no swing space.

uPVC Casement Windows

Side-hung sashes for full airflow and the tightest seal.

uPVC Performance Systems

Double-glazed acoustic and thermal windows.

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