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Single Glazing Explained

What is single glazing and when is it the right choice? Here's an honest look.

How they differ

Double glazing means two panes of glass with a sealed gap between them. The trapped gap slows heat and sound transfer far better than a single pane can.

Single glazing is one pane of glass. It's simpler and cheaper, and on a sheltered, quiet opening it's often perfectly adequate.

How to choose

Look for this

  • One pane of glass
  • Simpler and lower cost
  • Adequate on sheltered openings
  • Fine where noise isn't an issue
  • Still benefits from a well-sealed frame

Our honest view

Single glazing gets dismissed, but on a shaded, quiet opening in a well-sealed uPVC frame it does the job perfectly well. The frame's sealing matters more than people think — a well-sealed single-glazed window beats a leaky double-glazed one.

Questions

Frequently asked

What is single glazing?

One pane of glass in the frame — simpler and lower in cost than double glazing, and adequate on sheltered, quiet openings.

Is single glazing bad?

No — on a shaded, quiet window in a well-sealed frame it does the job. Sealing matters more than people assume.

When should I choose single glazing?

Where the opening is sheltered from sun and noise, and you'd rather spend the difference where it counts.

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.

Related Guides

You might also need

Related guides covering this topic from other angles — different products, applications, or contexts.

Talk to the maker, not a middleman

Tell us your openings and we'll measure on site, advise, and give you a real quote — factory-direct from our Pannimadai works in Coimbatore.