If you would like a window quotation please email with supporting photographs and approximate wall-to-wall measurements. Why not design your own composite door online and we'll email you quotation within 24 hours Mon-Fri? Hassle free, contact free and salesman free (we never employ salesmen or charge commission).



uPVC Windows

uPVC Windows

All work fully insured and certified by CERTASS

Black Composite Door

Black Composite Door

Stunning solid core composite doors

Solid Core Composite Doors

Solid Core Composite Doors

Modern & secure entrances to your home

The UK's most secure door

The UK's most secure door

Don't settle for anything less than amazing

Endurance Doors Barry

Endurance Doors Barry

Solid Core Composite Doors from Endurance

Secured By Design Doors

Secured By Design Doors

Stylish Endurance timber core composite doors

Endurance Doors

Endurance Doors

Part of the Trusted Installers Network

REHAU Windows

REHAU Windows

Secure and Energy Efficient Double Glazed Windows

Conservatory Roofs

Conservatory Roofs

Self cleaning, heat reflective roof systems.

uPVC French Doors

uPVC French Doors

REHAU French and Patio Doors

Solid Core Composite Doors

Solid Core Composite Doors

48mm thick, solid timber core Composite Doors

Diamond Lead

Diamond Lead

Stunning leaded glass to give a classical appearance

Secure and beautiful

Secure and beautiful

We are Endurance Doors "Preferred Installers"

Modern Composite Doors

Modern Composite Doors

Stunning blue Endurance timber core door

Endurance Doors Cardiff

Endurance Doors Cardiff

Suppliers of Core Endurance Doors

Quick Enquiry Form

For questions or no-obligation quotations please use our Enquiry Form

window and door finance available
Seriously tough products
Your local, trusted, MULTI-AWARD-WINNING experts in secure Windows & Doors!

2019 was an excellent year for 100% 5-star reviews and awards, and 2020 has started off in the same way! Thank you to everybody who voted for us, we really do appreciate the support.

distinction door offer

Learn more

endurance door offer

The "Hunter" Sledge Hammer Test!

Do we all remember 90's ITV show Gladiators? If you answered yes, you should remember Hunter. Most of our female customers seem to remember him anyway! 

Now simply known as James Crossley, he seemed the perfect icon to gather some hired muscle and put our Endurance Doors to the test, by trying to smash one down with sledge hammers. 



3... 2... 1...


 HomePro Membership No. 582008 

10 year warranty
The Ultion Smart is now available on all Composite Door orders from Composite Doors Cardiff!
free high security upgrade


Lock snapping has become the preferred entry method for UK criminals and we have a trick up our sleeve to keep burglars at bay...


The ABS Ultimate Cylinder. Accredited to TS007 3* as well as the Master Locksmith Association’s coveted Sold Secure Diamond standard, the ABS Ultimate offers an unprecedented standard of security to the homeowner.


A sacrificial cut is used so that when the burglar grabs the end of the cylinder, just the tip snaps off, leaving more metal in front of the central locking mechanism as protection.


Fitted as standard to all of our premium Endurance Doors range, providing anti-snap, anti-bump, anti-pick and anti-drill protection for your and your family. Just design your door and we'll automatically upgrade your locking cylinder for you free of charge!



composite door offers cardiff


Choose from any of the doors shown in our Endurance  Doors range and benefit from a free upgrade to the Federal high security locking cylinder and an additional £1000 break-in guarantee! 

Click on the image and follow the steps to take advantage of this offer. Choose any door shown in any colour shown, then choose a furniture colour from Black, White, Gold, Chrome or Graphite. Glazing can not be changed from what is shown as part of this offer, and any additional furniture is classed as an upgrade. 


Anything outside the designs shown will require a bespoke quotation.


You can design your own Endurance Door for quotation by clicking here


Throughout 2017-2020 we received consistent 100% 5-star reviews from all of our customers.

We are members of the Federation of Small Businesses.

We are members of the Endurance Doors Trusted Installer Network.

We are Approved Endurance Doors Installers.

We are Preferred Endurance Doors Installers.

We have won the Endurance Doors UK Installer of the Month award.

We have TWO Certificates of Excellence for consistent 5-star reviews in the South Wales area.

Build Magazine awarded us "Best Windows & Doors Supplier in the Vale of Glamorgan 2019".

Build Magazine awarded us "Windows & Doors Supplier of the Year - South Wales 2020".
Build Magazine awarded us "Best uPVC Windows & Doors Specialists 2020 - Wales".

We are multiple-times winners of the Endurance Doors "Door of the Week" award.

We are Corporate Partners with The Brain Tumour Charity.

We offer 10 year Insurance Backed Guarantees via HomePro (Membership No. 582008).

We are members of CERTASS (Membership No. 19-1085).

We are good at what we do - and we love doing it!

registered certass window installer
Why Composite Doors Cardiff?

Composite Doors Cardiff offer fairly priced, high quality composite doors in Barry, Cardiff, Penarth, Llantwit Major, Sully, Cowbridge and the rest of the Vale of Glamorgan, Rhondda Cynon Taff and surrounding areas. We also provide all aspects of Double Glazing including Energy Efficient uPVC Windows. If you need new windows or doors in Cardiff then look no further because we are experts in the field.

With Composite Doors Cardiff there is no haggling and no messing - just great Doors and Windows at great prices. Design your dream door using our online Door Designer or choose from one of our many popular Special Offer Doors

What do you look for in a Composite Door?​

Most people look for the same things. These are:

High security​ composite doors

Excellent thermal efficiency

Superb acoustic efficiency


Weather resistance

Competitive price

Which Composite Door manufacturer?

Owing to years of dealing directly with some of the UK's most well known and respected manufacturers, we can provide you with the UK's best quality and highest security quality composite doors. We recommend Endurance Doors as they are the UK's most secure doorsWe are proud to have been awarded the title of Endurance Doors Preferred Installers, meaning we know the products well, install them to the highest possible standard and our prices are fully verified. 

Each manufacturer has benefits over the other, so speak to us about your requirements and we'll be happy to advise. If price is your only concern, there are offers available across the board, depending on your preference or design, colour and glazing. Following some demand from Customers we are now also happy to provide Truedor doors from IG Doors.

What is the best priced Composite Door?

Join our Mailing List to keep up to date with special offers, such as uPVC Back Doors from £765 and uPVC Front Doors from just £895. We also run amazing special offers on premium solid core composite doors from Endurance Doors. Why not tale a look at our current special offers which are guaranteed to save you at least £300 off the RRP.

Design the door of your dreams...

Design your dream door online in the comfort of your own home, office, a train, a restaurant or even a comfortable toilet seat! Superimpose your design onto a photograph of your house and keep going until you find the exact door that you require. Then, simply submit your enquiry to request a totally no-obligation quotation from one of our in-house Composite Door experts. We will respond to all enquiries within 24 hours Monday-Friday, usually much sooner.

online door designer
online door designer
Survey, Supply & Installation.

Although our core business began in the supply of double gazing products to the building trade, we are proud to say that installing Windows and Doors for Homeowners and Landlords is now our primary business. Collectively we have in excess of 100 years worth of experience in double glazing products, including uPVC Windows & Doors, Composite Doors, Aluminium Bifold Doors, Conservatories and replacement Conservatory Roofs. Our fitters are qualified and time served experts in their field and install thousands of products every year.

Do you have any brochures available?

We have comprehensive brochures available for download on our brochures page. We also have our own company brochure which comprises the entire range of double glazed products we offer. Please download this if you are looking for Distinction GRP Composite Doors, Endurance Timber Core Composite Doors, WarmCore Windows & Doors, uPVC Windows & Doors, Aluminium Windows & Doors, French Doors, Patio Doors, Roofs, or Pilkington Glass ranges etc.​ If there is a brochure you need but cannot see, just ask and we can probably get it for you.

Can you beat any quote?

There are quite literally thousands of combinations of door style, colour, glazing, hardware, frame style etc. If you have a design you would like us to match please send us a copy and we'll do our best to help you. We're happy to try and match or beat any like-4-like quotations you have received from other suppliers, as long as they are legitimate, include VAT and are not cash sales.

Please be aware that we provide premium products, so will not be able to match the prices of substandard alternatives. 

Flood Defence Doors

We are pleased to inform you that have worked on behalf of The Flood Company and Welsh Water to provide the highest levels of flood defence possible - Flood Defence Doors. Due to the closure of the manufacturer we are sorry that we cannot offer this service any more. 

Trusted Trade Door Suppliers

We are also trusted suppliers of trade doors in Cardiff and the surrounding areas of South Wales. We supply Trade Doors in Wales at their very best prices, including uPVC Doors, GRP Composite Doors, Timber Core Composite Doors, Aluminium Doors, Aluminium Bifold Doors, French Doors, Patiomaster Patio Doors and Warmcore Doors. We also specialise in supply only Trade Windows and are trusted suppliers of REHAU uPVC Windows in Cardiff. If there's a price you need, just ask!

Subscribe to our Mailing List

Subscribe to the Composite Doors Cardiff Mailing List to receive news on special offers, new products and competitions.

On The Blog - latest blog posts

From time to time we add snippets of tastiness to our blog, which is specific to Composite Doors and Double Glazing.

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What our customers say

Claire, Barry

Extremely happy with the door Rob supplied. He gave great advice when choosing and was always on hand to answer any questions we had. Wouldn't go anywhere else!

Phillip, Bridgend

A good local company and they were very professional. I gave them rough measurements and a few pics and got a price without any sales pitches or forced selling. I was happy with the price and they arrange for a survey to recheck my sizes. Because of this I have placed a second order with them and would rate them as a competitive company, with great customer service skills .

Chris, Caerphilly

Rob was helpful from the start always there for any questions I had. 
I work with multiple pvc manufacturers as I own and run a property improvement company and Cardiff composites service was professional with a quality product will definitely be using them again.

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Composite Doors Cardiff Limited are proud to be the official sponsors of BroRadio 98.1fm weather

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Composite Doors Cardiff Limited is an introducer appointed representative of Phoenix Financial Consultants Limited ("Phoenix"). Phoenix is a credit broker that is authorised and regulated by the Financial Conduct Authority (Financial Services Register No. 539195) which offers finance for home improvement projects from its panel of lenders. All finance subject to status and credit checks.

cerificate of excellence 2019
5 star reviews
cerificate of excellence 2020

Copyright © 2017-2020 Composite Doors Cardiff Limited.
Company No. 11654260. Registered in England and Wales.
VAT Registration No. 315 3976 91