What is a Rockdoor composite door?

A Rockdoor composite door is a branded, high-security external door made from multiple materials (GRP skin, dense core and a reinforced inner frame) engineered for strength, thermal efficiency and long-term durability. Rockdoor’s hallmark is S-Glaze glazing, where the glass is bonded into the door, not cassette-clamped, making it harder to prise out and improving insulation. Rockdoor

What makes Rockdoor different?

• S-Glaze security glazing
  The glass is locked into the slab for life. No external cassettes to remove, fewer draught and discolouration risks, and a major uplift in attack-resistance. Rockdoor
• Reinforced inner frame
  Rockdoor uses a rigid uPVC inner frame reinforced (aluminium box section) and welded for structural integrity, making the door notably stronger than typical GRP composite doors. Rockdoor
• Independent security options
  Many Rockdoor specifications are available to meet PAS 24 and Secured by Design (police-preferred) standards when ordered accordingly. Rockdoor
• Thermal performance
  Rockdoor promotes strong thermal ratings; for UK compliance context, current Part L guidance targets around 1.0 W/m²K for new dwellings’ doors with <60% glazing and 1.2 W/m²K where glazing exceeds 60% (limiting value 1.6 W/m²K). Always check the exact spec on your chosen door.

Typical styles you can get

Rockdoor offers classic to contemporary designs (e.g., Vermont, Windsor, Montana), with solid panels, vision panels, or decorative glass. Stable and French door options exist too, so the same look can run through front, back and side entrances. Rockdoor

What do Rockdoor composite doors cost (UK)?

Supply-only Rockdoor models advertised online often start just under £1,000, while fully fitted composite doors in the UK generally land between £1,200 and £2,500+ depending on spec, glazing, colour, hardware, and any side panels. Premium configurations or complex installs can go higher. Always obtain a like-for-like written quote. 

Compliance & security quick check

• Order to PAS 24 / SBD if you need it: Ask for PAS 24 and, where required, Secured by Design spec at point of order, as these are specific configurations and testable standards.
• Part L U-values: Ensure your chosen door’s U-value meets the current Part L target for your project type (new build vs replacement, and glazing proportion).

Is a Rockdoor right for me?

Choose Rockdoor if you want a composite door that prioritises anti-jemmy glazing design, reinforced cores, and a broad style palette. For homeowners focused on security plus looks, Rockdoor is a strong shortlist option; just verify the exact security package and U-value on the final quotation.