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When Single Glazing Is Enough

Not every window needs double glazing. Here's an honest look at when single glazing is genuinely enough.

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

  • Shaded, north-facing openings
  • Quiet rear elevations
  • Small windows like bathrooms
  • Rooms you don't cool or occupy much
  • Where the frame seals well

Our honest view

We'd rather tell you where you don't need to spend. A shaded rear bathroom window doesn't need double glazing — put that money into the west-facing bedroom instead, where it does real work.

Questions

Frequently asked

When is single glazing enough?

On shaded, quiet openings — north-facing windows, quiet rear elevations, small bathroom windows, and rooms you don't cool much.

Am I making a mistake with single glazing?

Not on the right openings. A shaded rear window doesn't need double glazing — spend it on the hot or noisy side instead.

Will you tell me where I don't need it?

Yes — we'd rather spec honestly than upsell glazing that won't do anything.

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.