GRP Composite Doors

The Composite Door collection offers home owners a door composed of quality, durable and thermally efficient materials.

Added to that is a range of traditional and contemporary doors styles, unique and handcrafted glass designs, and genuine grain-effect colour finishes.

Enhance your home with a strong, secure and stylish Composite Door.

Innovation and quality is at the heart of everything we do. We have designed and developed our new 70mm door based on both security and thermal efficiency. Our new 70mm door not only retains its unique handcrafted glass and grain effect colour, but enhances the security with 70mm leaf thickness and thermal efficiency with the introduction of the 50mm triple glazed glass unit.

Get a quote now >


The Composite Door range is designed for high aesthetic appeal. Doors feature a genuine grain-effect finish, giving the appearance of a traditional timber door whilst delivering the benefits of modern materials. Personalise your door with a colour of your choice, including contemporary RAL colour options, or a bespoke, handcrafted decorative glass design

  1. Glazed Doors
  2. Decorative Glass
  3. Letterbox
  4. Door Threshold


Composite Doors are designed for maximum thermal insulation, ensuring energy is retained inside the home. All doors and glazing units within the Composite collection offer excellent energy efficiency properties; helping you save on home heating bills and reducing carbon emissions.

  1. Door U-Values
  2. Glazing Units
  3. Heat Loss
  4. Environmental


Advanced manufacturing techniques ensure that all Composite Doors are extremely robust, durable and long lasting. Door leafs are backed by a 10 year performance guarantee. Keeping your home safe and secure is of paramount importance, which is why all our Composite Doors are designed for enhanced security. Only the toughest materials are used to form our door leafs, making the doors virtually impact resistant. All doors feature multi-point locking mechanisms and hardware as standard, and are fitted to ultra-strong door frames.

  1. Door Materials
  2. Door Features
  3. Hook Locks
  4. Door Performance

Door Leaf – CFC-free Polyurethane Foam, layers of timber with impact-resistant Glass Reinforced Polyester (GRP) external and internal skins. Single and double rebated door leafs are available (see ‘What’s available?’ section on individual style pages). Single rebated doors = 44mm thickness. Double rebated doors = 70mm thickness. Double rebate available on all styles except codes LB and BS. Please check double rebate stock prior to ordering.

Door Leaf Colours – Please select inside and outside colours for the door leaf (standard will be white inside and coloured outside unless stated). Standard colours: White, Cream, Red, Blue, Green, Oak, Rosewood & Black (brown/ black also known as ‘Bog Oak’, to match Inliten black frame). Spray-painted RAL colours also available: Jet Black (9005), Graphite Black (9011) Charcoal Grey (7016), Silver Grey (7001) and Chartwell Green (BS14C35). Other spray painted colours available – please check RAL codes with Camden before ordering.

PVCu Frame – Inliten PVCu 70mm system with steel reinforcement. Doors will be mounted on a white frame unless stated. Door frames colours are available to match door colour range: Oak, Rosewood, Black, Cream, Red, Blue, Green, Charcoal, Silver Grey or another RAL colour of your choosing. NB: frame colours may not be exact match to door leaf.

Locking – Cylinder locking system fitted as standard. High-security, anti-snap cylinder lockings also available at an extra charge. Locking systems designed to meet the requirements of PAS 24 and Secured by Design (laminate glass must also be selected to achieve this).

Handles –  Lever/lever handles fitted as standard. Lever/pad and thumb-turn options also available. White handles fitted on white doors as standard. Specify handle colour on coloured doors. Available in white, black, gold or silver. Bar handles available on selected cottage door styles (please check handle sizes prior to ordering) – NB: glazing unit may be fitted in a different position and longer turnarounds/surcharges may apply.

Hinges – Butt hinges on single rebated doors and flag hinges on double rebated doors. White hinges as standard on white frames. For coloured frames, please choose hinge colour: white, silver or gold. Black hinge option only available with double rebated doors.

Door Furniture – Letterboxes available in white, black, silver and gold. Urn knockers (with/without peephole) are available in black, silver or gold. Scroll and Lion knockers available in black or gold only. Numerals and chains may also be supplied as a non-fitted accessory.

Glazing – Glazing unit is 24mm on single rebated doors and 50mm on double rebated doors. Double and triple glazing options available – refer to notes under door styles for glazing size information, some designs not available with double rebated door. Range of textured glass options also available. Georgian Bar available in White, Cream, Oak, Black and Rosewood.

Backing Glass – Backing glass for glazing units are available on most styles except codes featuring CL, EL, SP, PR, DC, CR, CS & RM.

Sidelights – Sidelight glass designs will be based on your chosen door glass design and at the discretion of the manufacturer. Custom designs may be available (extra charges/longer turnaround times may apply). To order place the code “SD”in front of your chosen door/glass code. NB: Matching sidelights not available with codes featuring CL, EL, SP, PR, DC, CR, CS & RM

Threshold – 76mm PVC threshold as standard, 50mm & 60mm also available. Stormguard thresholds available as optional extra.

Guarantee 10 year guarantee on door leafs, 15 years on PVCu frames and 1 year on ironmongery. Composite doors meets all the stringent British Standard tests compliant with Parts L and M of Building Regulations.

Ordering Information – Step 1 – Select door style ie: New York, Step 2 – Select door leaf colour (specify inside and outside colours), Step 3 – Select glass design, Step 4 – Select backing glass, Step 5 – Select door frame colour, Step 6 – Select door furniture, Step 7 – Select sidelights (if required)



We can offer 'Secure by Design' on our window and door ranges.

Energy Efficient

Energy Efficient

U Values from 0.7, A* Energy Rated, and environmentally conscious products.



Many of our products comply with FSC, PAS 23/24, CE Marking, and are tested by BM Trada.

Project Management

Project Management

Professional advice and guidance for all building projects.

Andrew James


"My experience with International Doors and Windows was excellent. They were competitive on price and provided top quality products and services."

© 2020 International Doors & Windows | Website by Simplicity Marketing