Composite door guides

1. 

   Composite Door Prices: What You’ll Actually Pay in 2026

   What a fitted composite door costs in 2026: our prices and real jobs, the extras, fitting only, repairs, and what pushes the price up.

   15 min read

2. 

   Rockdoor vs Solidor vs Endurance Doors

   Three composite door brands side by side: security, thermal efficiency, styles and prices.

   14 min read

3. 

   Rockdoor Colours: Complete Guide to All 14 Options

   All 14 Rockdoor colours with RAL codes, frame matching options and real installation photos.

   25 min read

1. 

   Rockdoor Replacement Parts: Handles, Locks, Keys & More

   Rockdoor hinges, handles, locks, seals and keys explained, with a link to each part in our shop.

   10 min read

2. 

   Rockdoor Key Cutting and the New Apecs Lock

   Older purple Rockdoor keys can be cut locally. New doors have an Apecs lock, with keys from Apecs. How to tell which you have.

   9 min read

3. 

   Rockdoor Guarantee: What’s Actually Covered and What Isn’t

   What the Rockdoor guarantee covers, for how long, and why your installer matters more than the warranty itself.

   10 min read

All 4 guides on Rockdoor

1. 

   Best Euro Cylinder Locks 2026: Ultion vs Avocet vs Yale

   Which euro cylinder lock to choose in 2026: Ultion, Avocet, Yale and Apecs compared on the 2024 ratings, guarantees and keys, by Rockdoor installers.

   14 min read

2. 

   How to Measure and Swap a Door Cylinder Lock

   Measure, remove and fit a new euro cylinder yourself, step by step.

   9 min read

3. 

   Laminated Glass in Composite Doors

   What laminated glass does in a composite door: security, noise and energy.

   6 min read

All 4 guides on locks and glass