Windows & Glazing

Listed Building? Four Glazing Options (Ranked by Approval Rate)

Published 2 Jun 2026

What this video covers

Half a million listed buildings in the UK. Most owners think they're stuck with single glazing. They're not. Four options. Approval rates vary from 18% to 95%.

In this video

  1. 0:00 500,000 listed buildings
  2. 0:11 Secondary glazing — 95% approval, £3,500
  3. 0:24 Slim double — 62% approval, £8,500
  4. 0:36 Vacuum glazing — 78% approval, £12,000
  5. 0:48 Standard double — 18% approval