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Welcome to Caerphilly's Local Home Improvement Specialists

Transforming Your Home with Style and Efficiency

At Pendragon Windows & Doors, we are proud to serve Caerphilly & the surrounding areas with high quality replacement windows & doors.

Whether you’re in a modern property in Castle View or a period home near Caerphilly Castle, we offer a range of styles to complement the unique architecture of homes in this historic and vibrant town.

From traditional to contemporary designs, our award-winning UPVC windows & composite doors can enhance both the look & energy efficiency of your property. We provide tailored solutions to suit every home, ensuring your new windows & doors are as stylish as they are functional.

If you’re looking for double glazing in Caerphilly or a composite door in Caerphilly, look no further — our expert team is ready to transform your home with products built to withstand South Wales’ ever changing weather conditions.

Replacement Anthracite Grey Double Glazed Windows in Caerphilly
Replacement Anthracite Grey Double Glazed Windows in Caerphilly

Our Products

UPVC Windows

Our Award winning A rated UPVC windows are perfect for enhancing the energy efficiency & style of your home. UPVC is a highly durable, low-maintenance material designed to withstand the varying British climate. It provides excellent insulation, helping you reduce your energy bills while keeping your home warm in the winter & cool in the summer. We offer a range of window styles, from standard casement to sliding sash, all with secure locking systems & available in various colours to suit the style of your home.

UPVC Doors

Our UPVC doors offer the same benefits as our windows, providing excellent insulation & security. Available in a wide variety of designs, UPVC doors are perfect for those seeking a durable, affordable option. Whether you’re looking for a front door or a back door, we can help you choose the right style that will not only look great but also protect your home from the elements.

Before and After Aged draughty timber door replaced with modern timber core composite door in Anthracite grey with long pull handle and greater security in Machen Caerphilly
Before and After Aged draughty timber door replaced with modern timber core composite door in Anthracite grey with long pull handle and greater security in Machen Caerphilly

Composite Doors

For homeowners in Caerphilly seeking an upgrade, composite doors are an ideal choice. These doors are made from a combination of materials, including a solid timber core, UPVC frame, & a hardwearing door skin that uses CoolSkin technology to protect against fading, warping, cracking & bowing. This makes the award winning Endurance composite doors we supply exceptionally strong & secure, with a stylish finish that replicates the look of a traditional wooden door but without the high maintenance. Available in a range of colours & designs, they are perfect for both contemporary & period homes. If you’re after a composite door in Caerphilly, we offer a variety of options to suit your needs.

Aluminium Windows

If you’re after a sleek, modern look, our aluminium windows are the perfect solution. Known for their slim profiles & high strength, aluminium windows allow for larger panes of glass, letting in more natural light while providing robust security & excellent thermal performance. They are an ideal choice for contemporary homes or for those looking to add a modern twist to a traditional property. Our aluminium windows come in a range of finishes and colours to seamlessly match your home’s style.

Sliding Patio Doors in UPVC & Aluminium

Enjoy panoramic views & seamless access to your garden or patio with our sliding doors, available in both UPVC and aluminium. UPVC sliding doors offer excellent insulation & are a cost-effective option, while aluminium sliding doors provide a slimmer, more elegant frame, allowing for larger glass panels. Both options are designed with energy efficiency & security in mind, ensuring that your home remains stylish, safe, & comfortable all year round.

Aluminium Sliding Patio doors

Aluminium Bifold Doors

Aluminium bifold doors are the ultimate choice for creating a bright, open-plan living space. These doors fold back to give you a full, unobstructed view of your garden, perfect for summer months or entertaining guests. Aluminium bifold doors are both lightweight & strong, offering exceptional thermal efficiency & security. Their modern design is ideal for homeowners looking to make a statement, whether you live in a new build or a period property in Taffs Well.

uPVC French Door Inspiration

French Doors in UPVC & Aluminium

French doors are a timeless, elegant addition to any home, & we offer them in both UPVC and aluminium. UPVC French doors are cost-effective & energy-efficient, while aluminium French doors provide a more modern aesthetic with slim frames. Both options offer superb thermal insulation, security, and ease of use. Whether you’re opening up your living space to the garden or adding a touch of sophistication to your home, our French doors are designed to compliment any style of property.

Why Choose Pendragon Windows & Doors?

At Pendragon, we understand the importance of combining style, security, & energy efficiency in your home improvements. Whether you’re looking for double glazing in Caerphilly or need advice on choosing the perfect composite door in Caerphilly, our friendly, expert team is here to guide you through every step of the process.

Contact us today for a free consultation & let us help you transform your home!

Recent Projects

Some recent projects that we have completed for clients.

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What our Clients Say

"Jules, Kay, and the rest of the team are outstanding. Customer service from beginning to end went above and beyond. Every stage was explained and communicated so that we knew exactly what was happening and when. Some minor issues during fitting were resolved without any fuss and we now have some fantastic looking windows and a much warmer house! Pendragon are definitely changing the face of the window industry with the high quality service they are providing. I cannot recommend them highly enough." - Gareth, Risca
"Grate customer service and aftercare, friendly family run business. It’s was a quick turnaround from ordering to installing! Very pleased with my new windows and door. Highly recommended if you want a hassle free friendly experience 5*****" - Chrissy, Machen
"Thrilled with our new Endurance Door from Pendragon! Jules was great from start to finish, patiently guiding us through design ideas until we settled on the perfect fit. Communication couldn’t have been better throughout process and the installers were professional, tidy and did a great job. Highly recommended!" - Felicia, Chepstow
"I had an excellent service from Pendragon. Great advice from the start and helpful and considerate. The installation of my windows happened so quickly and smoothly with no fuss or mess and I know it was no small job removing the old windows so 10 out of 10 and thank you!" - Toby, Hereford
"Had a wonderful experience with this family owned and run business. Polite,curteous and helpful all the way through. Came and measured up,listend to what I required,provided a detailed quote and waited for my response,no pressure sales,kept me fully informed throughout the process. Windows and doors are made to measure,bespoke to your property and look amazing. And Wow the front door is stunning and the icing on the cake is that they were not even the most expensive company out there. A wonderful experience with a stunning end result. Definately recommend using Jules and his team. First Rate Company" - Lesley, Newport
"Excellent experience with Pendragon Home Improvements. Ordering was easy, kept us informed all through the process. Door was delivered quicker than expected. The fitters were polite, efficient, did a top class job and cleaned up any mess. Highly recommend this company." - Julia, Pontprennau Cardiff
"The prospect of having all my windows replaced was daunting. Firstly trying not to get completely ripped off and secondly delay and fit issues. For once I made a really good decision. I replaced all my window. 15 windows and two sets of sliding doors. The whole process was exactly as promised. Jules and Kay are great business owners and offer a genuine local service without trying to con you like all the others who quoted. Get them to quote you and make your mind up for yourself. I have also received my Guarantee and Fensa certs so all necessary paperwork is complete. My house is quieter less drafty cleaner looking and thermally more efficient. Thanks." - Lewis, Cyncoed, Cardiff
"Gwasanaeth grêt, cyfarthrebiad dda trwy gydol y gwaith, a phris resymmol iawn. Dwin adorchmynnu galw ar Jules a Kay os wyt ti angen newyddu ffenestri neu drysau yn y tŷ.

Great service, good communication throughout. I can recommend calling Jules and Kay for anyone wanting to renew their windows and doors." - Barry, Pontypridd

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Need Inspiration for your Next Project?

Take a look at our gallery of home improvement projects for some inspiration

uPVC Flush Casement Windows in Chartwell Green full house inspiration
uPVC Flush Casement Windows on Heritage Property
Composite Door with double sidelight
Aluminium Sliding Patio Doors AluK Optio BSC94 Inspiration (1)
uPVC Flush Casement Windows in Black Heritage Cottage full house inspiration
uPVC Flush Casement Windows in Black Heritage Cottage full house inspiration

Looking for Further Advice?

If you are looking for Advice about chosing your replacement uPVC or aluminium windows or doors then check out the rest of our Advice Centre which is packed full of handy information

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Useful Links

Double Glazing Cardiff

Composite Doors Cardiff

Endurance Doors Cardiff

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©2025 Pendragon Home Improvements Ltd.

Unit 16c, The Rombourne Business Centre, Moy Road, Taffs Well, Cardiff, CF15 7QR

Pendragon Home Improvements Ltd is an Introducer Appointed Representative of Ideal Sales Solutions Ltd T/A Ideal4Finance. Ideal Sales Solutions Ltd is a credit broker & not a lender (FRN 703401). Finance available subject to status. The rate offered is always provisional & will depend upon your personal circumstances, the loan amount & term.