Windows & Glazing

Triple vs double glazing is it worth it

Published 3 Jun 2026

What this video covers

Triple vs double glazing — is it worth it?

Triple glazing insulates best, but the extra gain over good A-rated double glazing is small in the UK's mild climate. It's worth it for new builds, very exposed homes, or cutting noise — less so as a straight swap.

In this video

  1. 0:00 The short answer
  2. 0:18 Triple glazing insulates the best
  3. 0:31 But the extra gain is small here
  4. 0:47 Worth it for new builds and noise
  5. 1:03 What this means for you