Ruislip Windows and Doors Ltd
Composite Front Doors


First for composite front doors

Our elegant Universal Doors range has been an integral part of our composite door portfolio since Spring 2023.

Sapphire range (foam core) and the Diamond range - solid timber core with a GRP skin:

  • Thick GRP (Glass Reinforced Plastic) skin ensures no cracking or delaminating.
  • Encased LVL (Laminated Veneer Lumber) and hardwood stiles and rails for stability and protection against water ingress.
  • 3 layered inner core of cross laminated engineered hardwood, creating a stronger, heavier and more robust door.
  • All UCD doors have excellent thermal efficiency with doors achieving a U-Value of 1.4 or better.

  • 7 standard colours and any RAL of your choice using the latest spray paint technology.

  • Created from the best of both traditional and modern materials.

Universal Composite Doors are manufactured with a reinforced door frame and secured with a multi-point lock with two hooks, two finger bolts and a deadbolt. Premium adjustable hinges and keeps meet the latest PAS24 standards and legislation.