Windows & Glazing

10 Things to Know Before Buying a Composite Door

Published 6 Jun 2026

What this video covers

A complete guide for UK homeowners.

Composite doors offer better insulation and security than timber or uPVC. Here are the ten key things to check before you buy. From Axiom Eco Homes.

In this video

  1. 0:00 Intro
  2. 0:11 10. Installation Takes Half a Day
  3. 0:16 9. Measure the Frame Accurately
  4. 0:22 8. Choose the Right Composite Core
  5. 0:28 7. Factor in a Letterbox Upgrade
  6. 0:33 6. Verify the Warranty Length
  7. 0:41 5. Save £100-£150 a Year on Heating
  8. 0:49 4. Multi-Point Locking System
  9. 0:56 3. Check the BFRC Energy Rating
  10. 1:02 2. Composite Doors Last 25-35 Years
  11. 1:11 1. Cut Heat Loss by Up to 50%
  12. 1:18 Where to start