Composite DoorsSolid, Secure & Thermally Efficient
UK’s #1 front door, built with a 48mm solid timber core for real security. A-rated for warmth, PAS24 & Secured by Design with 3-star anti-snap locks. Available in 150+ colours and woodgrain finishes, smart-lock ready and backed by our 10-year guarantee.
What is a Composite Door?
A composite door is the UK’s most popular front entrance door. It is defined by its 48mm solid timber core fused with a durable GRP skin, combining the strength of timber, the weatherproofing of uPVC and the premium look of aluminium. Unlike a hollow uPVC panel door that feels light and flexes, a composite door’s dense core and triple-seal frame press tightly against the frame when closed for superior thermal and acoustic insulation.
Unlike a basic uPVC door, a composite door offers authentic woodgrain texture, deep decorative panels and 150+ colour options. At Win-Doors INT LTD we offer composite doors with side panels, top lights, stable-door style and French door combos. All are A-rated, PAS24 & Secured by Design, smart-lock ready and made-to-measure in the UK.
KeyFeatures of Composite Doors
48mm solid timber core + GRP skin = UK's most secure entrance
48mm Solid Timber Core
Hardwood core + GRP skin. No foam, no flex, maximum strength
5-Point Hook Locking
PAS24 tested, Secured by Design, 3-star anti-snap cylinder
A-Rated Thermal Efficiency
Triple-seal rebate + insulated core, U-value 1.0 W/m2K
Triple Glazed Decorative Glass
Laminated, obscure & leaded options with warm-edge spacer
Weatherproof Triple Seal
EPDM gaskets on frame + door leaf. Storm-proof, draught-free
3-Star Anti-Snap Cylinder
Yale Platinum 3-star cylinder, anti-drill, anti-bump, anti-pick
Acoustic & Draught Proof
Up to 31dB reduction. Quiet home, no road noise
GRP Woodgrain Finish
25yr colour warranty, 150+ RAL, never needs painting
Composite Warmth Or
Aluminium Minimalism.
The UK's two best entrance door materials. One solid and traditional, one slim and architectural. Both A-rated, PAS24 secure and made to measure in the UK.
MOST POPULARComposite Front Doors | UK's favourite, solid timber core, never warps
- A+ Energy Efficient & Draught-Free
- PAS24 Secured by Design
- 48mm Solid Timber + GRP Skin
- 150+ Colours, Woodgrain & Dual Colour
- 10 Year Guarantee & FENSA Fitted
- From £799 Supplied & Fitted
PREMIUM SLIMLINEAluminium Casement Windows
- 35mm Ultra-Slim Sightlines
- Polyamide Thermal Break
- Powder-Coated, No Rotting or Fading
- 200+ RAL Colours, Matte & Gloss
- For Front, Back, Bi-Fold & Sliding
- Maximum Glass, Maximum Light
Composite Doors Built For London Homes , Secured For Life
We craft high-security composite doors that look like timber, perform like armour. Solid-core, weather-proof, and fitted by our own FENSA team — not contractors.
Made to Measure in the UK
Every window manufactured to your exact size, not off-the-shelf. Perfect fit, zero compromise.
Profile 22 System
UK's most trusted 70mm system for thermal & weather performance. Engineered for British weather.
A+ Energy Efficient
Keep heat in, bills down, EPC ratings improved. Argon-filled double glazing as standard.
Secured By Design
Multi-point locking, internal glazing, police-approved security. Your peace of mind built-in.
10 Year Guarantee
Full guarantee on frames, hardware & installation. No quibble, no small print.
Made to Last, Zero Maintenance
Never rots, warps or needs painting. A quick wipe keeps them pristine for decades.
Where Are Composite Doors Used?
From Victorian terraces in London to new-build estates, composite doors suit every home. Solid-core security, A-rated warmth and 150+ colours make them the first choice where first impressions and safety matter.
01 • ApplicationFront Entrance & Porches
Make a statement with a solid, draught-free entrance. The UK's favourite front door for kerb appeal and security.
- Best kerb appeal & value uplift
- PAS24 & Secured by Design
02 • ApplicationVictorian & Edwardian Homes
Authentic woodgrain look without the rotting, painting and warping of timber. Heritage colours with modern security.
- Chartwell Green, Black & Woodgrain
- Traditional glass & furniture
03 • ApplicationNew Builds & Modern Estates
Contemporary flush design, ultra-matt RAL colours and minimalist hardware. Smart-lock ready for modern living.
- Flush, smooth & ultra-modern
- Yale Conexis / Ultion smart
04 • ApplicationBack Doors & Stable Doors
Same 48mm solid core for rear security. Stable-door option for kitchens — open top for air, bottom locked for safety.
- Stable door & half-glazed options
- High security for rear access
05 • ApplicationApartments, HMOs & Rentals
FD30 fire-rated composite options, anti-snap security and zero maintenance. Ideal for landlords and blocks.
- Fire-rated & compliant
- Low maintenance for landlords
06 • ApplicationSchools & Institutions
Safe, controllable ventilation for classrooms and labs. Tested for high-cycle daily use.
- Restrictor stays for child safety
- Reinforced hinges for heavy use
Built For Security. Designed For Style.
Maximum Security
5-point hook lock, 3-star anti-snap cylinder, PAS24 & Secured by Design.
Thermal Efficiency
48mm solid core + triple seals. A-rated, U-value 1.0, draught-proof & warm.
Premium Kerb Appeal
150+ colours, authentic woodgrain, decorative glazing. Instant value uplift.
Zero Maintenance
GRP skin never rots, warps or needs painting. 25-year colour warranty.
Colours to inspire
Aludec and Woodec deliver a step change in the application of PVCu colour finishing options.
Inspired by nature
Woodec
Woodec illustrates the appearance of real wood with a unique character combined with all the advantages of our excellent product range. This is what the new Woodec decorative foils offer. Not only is it difficult to distinguish visually from the natural material, but the Woodec foil also recreates wood very realistically to the touch, thanks in part to deep embossing and a matte top layer.
Inspired by style
Aludec
The attractive surface of Aludec decorative foils, distinguished by a unique fine-grained, matt surface with a similar finish to powder-coated aluminium, is a fabulous option that suits contemporary modern minimalist designs.
The new Aludec foils follow this trend, offered in seven attractive shades ranging from whites and greys, brown, jet black, anthracite, and a metallic finish.
Feature colours
Standard foil colours
All aluplast coloured foil finishes feature innovative technology which improves performance characteristics, providing a much longer life cycle of the surface finish.
Custom foil colours
Our Completed Projects
Composite Doors FAQs – London & UK
Real questions from real customers about composite door security, costs, colours and fitting.
What is a composite door?
A composite door is made from multiple materials fused together 48mm solid timber core, insulating foam, and durable GRP (glass reinforced plastic) skin. Unlike hollow uPVC, it’s solid, secure, and looks like real wood.
How much does a composite door cost in London?
Supplied & fitted from £799 for solid, £1,100-£1,600 with side panels & decorative glass. Price depends on colour, glass, hardware and size. Free quote in 24h.
Are composite doors secure?
Yes UK’s most secure. PAS24 tested, Secured by Design certified, 5-point hook locks + Yale Platinum 3-star anti-snap, anti-drill, anti-bump cylinder as standard.
Are composite doors energy efficient?
A-rated as standard. Triple EPDM seals, insulating core, U-value from 1.0 W/m²K. Keeps draughts out, heat in, and reduces energy bills.
What's the difference between composite and uPVC doors?
uPVC is hollow plastic, light and cheaper. Composite is 48mm solid timber + GRP, heavier, stronger, warmer, more secure, and looks like timber with woodgrain.
How long do composite doors last?
30+ years. GRP skin won’t rot, warp, fade or need painting. 25-year colour warranty, 10-year guarantee on door & hardware.
What colours and styles do you offer?
150+ RAL colours Anthracite Grey, Black, Chartwell Green, Duck Egg Blue, etc. Woodgrain or smooth, dual colour, with 100+ glass, handle & letterbox options.
Can I have a composite door with side panels?
Yes single side panel, double side panels, top lights, French pair, stable-door style. All made to measure.
Are composite doors fire rated?
We offer FD30 fire-rated composite doors for apartments, HMOs & commercial — 30-minute fire resistance, fully certified.
Do you fit composite doors in London?
Yes our own FENSA installers cover all London & Home Counties. No subcontractors, free survey, fitted in 2-3 weeks.
Elevate Your Home with Windows & Doors
Get a free, no-obligation quote for casement windows in London. Made-to-measure, FENSA installed, A-rated & PAS 24 secure. Side-hung, French & bay options in uPVC, aluminium.