GRP Composite Doors Browse our range of traditional, cottage and contemporary style composite doors. £100 off.
JUNE OFFER - FREE DELIVERY ON ALL ORDERS OVER £250
Strong, Secure & Thermal Efficient Composite Doors
Composite doors are now the preferred choice of double glazed external doors for many homeowners, diyer's and tradesmen due to the huge advantages that composite doors have over the alternative wooden doors, steel doors, upvc doors and most other external doors available. Durability, strength, security, thermal efficiency, weather resistant, low-maintenance and life expectancy to name just a few of the great benefits of a grp composite door.
Why Buy Composite Doors From Just Doors UK?
Trusted by homeowners, builders and installers nationwide since 2005.
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Free Nationwide Delivery
Every composite door includes free delivery to most mainland UK postcodes, helping you avoid the additional charges often applied elsewhere.
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Design & Price Online
Customise your composite door online with your preferred colours, glazing, hardware and frame options before ordering.
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Made To Measure
Every composite door is manufactured to your chosen dimensions and specification for a precise fit and professional finish.
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Secure Composite Doors
Strong composite door construction combined with modern multi-point locking systems helps provide outstanding security and peace of mind.
Rated Excellent
Thousands of homeowners across the UK have trusted Just Doors UK for quality products, competitive pricing and helpful customer service.
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Supply Only Specialists
Unlike many competitors, we specialise in supplying high-quality doors directly to homeowners, builders and installers nationwide.
The Smarter Way To Buy Composite Doors Online
Since 2005, Just Doors UK has supplied thousands of made-to-measure composite front doors across the UK. Our easy-to-use online door designer allows you to configure your ideal door, compare styles and prices, and order directly online. With nationwide delivery, competitive pricing, expert support and a huge choice of colours, glazing designs and hardware options, we make it simple to create a secure and stylish entrance for your home.
JUNE SPECIAL OFFER - £100 OFF & FREE DELIVERY
* £100 off all composite, timber solid core and fd30 fire doors ordered during June *
* Order any composite front door and receive £200 off any glazed composite back door *
Design Your Perfect Composite Door
Before choosing your new front door, read our comprehensive Composite Doors vs uPVC Doors comparison guide to compare security, energy efficiency, lifespan, maintenance requirements and overall value for money.
Why Choose Composite Doors?
Composite doors have become one of the UK's most popular choices for front and back doors thanks to their outstanding combination of security, thermal efficiency, durability and low maintenance. Unlike traditional timber doors that can warp, crack or require regular painting, composite front doors are designed to withstand the British weather while retaining their appearance for years to come. Every Just Doors UK composite door is made to measure and manufactured to exacting standards, making them ideal for homeowners looking to improve both the security and kerb appeal of their property.
Our range includes both GRP composite doors and premium solid timber core composite doors, available in a wide choice of styles, colours, glazing designs and hardware options. Featuring high-security multi-point locking systems, thermally insulated cores and optional PAS 24 enhanced security upgrades, our composite doors are designed to provide excellent protection, energy efficiency and long-term performance. Whether you're replacing an old upvc door or upgrading a traditional timber entrance door, a composite door offers the perfect balance of style, strength and practicality.
Which Composite Door Is Right For You?
Traditional Composite Door Range
- From £665
- From £690
- From £690
- From £614
- From £674
- From £664
- From £704
- From £580
- From £654
- From £644
- From £690
- From £700
- From £580
- From £700
- From £693
- From £975
- From £1125
- From £815
Modern & Contemporary Composite Door Range
- From £654
- From £580
- From £650
- From £670
- From £674
- From £674
- From £670
- From £674
- From £695
- From £674
- From £674
- From £680
- From £770
- From £684
- From £684
- From £815
- From £815
Endless Choice of Composite Door Styles, Colours and Hardware
Available in over 900 billion combinations with an a array of composite doors online, from the classic traditional, Georgian and Victorian front door style to the ever increasingly popular modern and contemporary along with an extensive choice of secure Yale & Winkhaus door locks, Yale & Ultion cylinders, hardware suites, standard colours and bespoke superior colours including black, blue, green, red, white, oak, darkwood, chartwell green, cream, grey, duck egg blue, poppy red and black brown. We can also offer door and frame colour matching to any RAL colour. A choice of colour is available both sides of the door and upvc frame on our fantastic range of composite door styles. Coloured foil finished frames designed to match most profile systems offer excellent matching options to any existing double glazing in your house and with an excellent choice of contemporary and modern door hardware, available in chrome, gold, black, graphite (brushed chrome), white and brushed stainless steel.
Contact us at
sales@justdoorsuk.com
or give us a call
01530 273365
For further information on our double glazing and lead times please contact out friendly sales and customer service team.
Enhanced Composite Door Security
As standard, Just Doors UK ultra secure composite doors are supplied prehung in a reinforced upvc frame, fitted with a PAS24 accredited high security multipoint locking system and an anti snap cylinder offering the utmost protection and safety for you, your family and your home. A premium Secured by Design upgrade is also available to further enhance the composite door security features.
How Long Will a GRP Composite Door Last?
| Door Type | Expected Life - Maintained | Maintenance Cycle | Expected Life - Maintenance |
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| Softwood Door | 25 | Paint (5 Years) & Yearly Oil | 12 |
| Hardwood Door | 35 | Paint (5 Years) & Yearly Oil | 12 |
| Timber Composite Door | 30 | Paint (5 Years) & Yearly Oil | 17 |
| Steel Composite Door | 30 | Wipe Clean & Yearly Oil | 18 |
| UPVC Composite Door | 25 | Wipe Clean & Yearly Oil | 23 |
| GRP Composite Door | 35 | Wipe Clean & Yearly Oil | 33 |
| Aluminium Powder Coated Door | 25 | Wipe Clean & Yearly Oil | 20 |
| UPVC Panel Door | 20 | Wipe Clean & Yearly Oil | 15 |
Unbeatable Value Composite Doors
Made to measure composite door prices start from just £580 inc VAT and free Nationwide delivery. Just Doors UK may offer the best online price and cheap composite doors for sale but rest assured the door quality and customer service from Just Doors UK is second to none, please check out the customer reviews page. Buy your new comopsite door online from the UK's trusted and leading composite door supplier.
We supply composite front doors, composite back doors, Solidor timber core composite doors, diy composite doors, modern composite doors to the general public and diyer's, construction companies, renovation companies, builders.
The majority of external front doors we offer can be delivered within 2-3 weeks, prehung in the frame and ready to install. You will get a new composite door, fabricated to your specification and of the highest quality and at great trade price! Just call our sales team on 01530 273365 to order your new door today from the UK's trusted and leading door supplier!
We now offer over 900 billion combinations of composite doors online available to buy!
Composite Door Thermal Performance and U Values
Our solid cottage style composite door set achieves a `U` Value of 1.0 and an energy rating of A, while our half glazed Composite door with the thermal argon upgrade option achieves a 'U' Value of 1.4 - great numbers for keeping the digits on your energy bills low. The warm edge spacer bar technology in many of the double glazed units are even more efficient. It gives the composite doors a better overall energy rating compared to other UK composite doors available. Lower energy bills and better for the environment. Our GRP composite doors give you a nice warm feeling - all year round.
Take a look at how well our composite doors perform compared to the rest of the market. (Information from HAPM (Housing Association Provident Mutual) and BRE (Building Research Establishment)).
Why Our Composite Doors Are Different
Designed for security, style and long-term performance, our made to measure composite doors combine premium materials with industry-leading hardware and customisation options.
🔒 High Security Locking System
Every composite door is fitted with a high-security multi-point locking system tested to PAS 23 and PAS 24 standards. Combined with anti-pick cylinder technology and reinforced construction, our secure composite doors help protect your home against forced entry.
🏆 PAS 24 & Kitemark Tested
Many of our composite door systems are independently tested to PAS 24 security standards and relevant British Standards, providing reassurance that your new front door meets recognised security and durability requirements.
🎨 Premium Composite Door Colours
Choose from 13 popular composite door colours including Anthracite Grey, Chartwell Green, Black, White, Blue, Red, Cream, Oak and Darkwood. Many finishes use pre-pigmented GRP skins for long-lasting colour consistency and reduced fading.
🏡 Composite Doors With Side Panels
Create a grand entrance with matching glazed or solid side panels. All side lights are colour matched to the main door and securely reinforced using heavy-duty aluminium couplers for maximum strength and stability.
🪟 Composite Doors With Top Lights
Add extra natural light with a matching top light or fanlight. Our dedicated transom frame system creates a stronger one-piece construction while allowing decorative glazing designs to match the main composite door.
🛡️ Durable GRP Composite Door Skin
Every GRP composite door features a Glass Reinforced Plastic outer skin. This tough material provides excellent weather resistance, realistic woodgrain detailing and long-lasting performance without the maintenance requirements of timber doors.
✨ Fully Matching Door Hardware
Complete your composite front door with coordinated hardware in Chrome, Black, Graphite, Gold or White finishes. Handles, knockers, letterplates, hinges and house numbers are designed to work together as a complete suite.
💧 Colour-Matched Door Drips
Unlike many composite doors that use contrasting threshold strips, our colour-matched door drips blend seamlessly with the door colour while helping direct rainwater away from the bottom of the door for improved weather protection.
📏 Precision Edge-Banded Construction
Every composite door is finished using durable ash-grained PVC edge banding. The edges are carefully machined and rounded to provide a clean, professional finish with no exposed sharp corners.
Composite Doors FAQs
Looking for answers about composite doors? Below we answer common questions about composite front doors, prices, security, colours, energy efficiency, maintenance, made-to-measure sizing, online design options and supply-only delivery. If you are replacing an old front door or choosing a secure new entrance door for your home, this guide will help you compare the key benefits before ordering.
Composite doors are external doors made using a combination of materials, usually including a strong insulated core, GRP outer skin, reinforced frame and modern locking system. This layered construction helps create a door that is strong, secure, weather resistant and thermally efficient, making composite doors a popular choice for front doors and back doors.
Composite doors are generally stronger, more secure and more premium in appearance than standard upvc panel doors. They usually offer improved insulation, greater design choice and a more solid feel. upvc doors can still be a cost-effective option, but composite doors are often preferred where security, kerb appeal and long-term durability are priorities.
The cost of a composite door depends on the size, style, colour, glazing, frame options, hardware and whether side panels are required. Just Doors UK allows you to design and price your composite door online, making it easier to compare different styles and options before placing your order.
Yes. You can design your composite front door online by choosing the door style, external colour, internal colour, frame colour, glass design, hardware and other available options. This allows you to create a made to measure composite door that suits your home, taste and budget.
Yes. Just Doors UK composite doors are made to your chosen sizes and specification. This means your new door is manufactured specifically for your property rather than being supplied as a standard off-the-shelf size.
Yes. Composite doors are designed with security in mind. Depending on the specification selected, they can include a reinforced frame, tough GRP door skin, multi-point PAS24 security rated locking system and secure cylinder options. Their solid construction makes them a strong choice for external front doors and back doors.
Composite doors are available in a wide range of colours, from classic white, black, red, blue and green through to popular modern shades such as Anthracite Grey and Chartwell Green. Many composite door styles also allow different internal and external colour choices, helping you match the outside of your property while keeping the inside finish neutral.
Yes. Composite doors are designed to help reduce heat loss through the entrance of your home. Their insulated core, weather seals and modern glazing options help improve thermal performance compared with older timber doors or basic upvc panel doors.
Composite doors are low maintenance. The GRP outer skin is designed to resist everyday weathering, and the door can usually be cleaned with warm soapy water. Hinges, locks and moving parts should be checked occasionally and maintained according to the manufacturer’s guidance.
Yes. Just Doors UK specialises in supply only external doors, making this ideal for homeowners, builders and installers who already have someone to fit the door. You can configure and order your composite door online, then arrange installation separately.