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From uPVC casement windows & entrance doors, French doors, Composite Doors, Sliding Patio doors to Aluminium Bi fold doors, there’s plenty of choice in our brochures to inspire everyone

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FENSA Approved Window & Door Installations
Planitherm Network Member
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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

"Excellent service installing new windows and doors, couldn’t have asked for a better team from consultation to installation. Jules, Craig and Lee are all brilliant and know how to get the job done." - Donna, Newport
"Recently had two doors replaced by Pendragon Home Improvements. The whole process from consultation to fitting was smoothly dealt with by Joules and his team. We were kept updated at all times and the fitting was carried out without delay and to a high standard. I would not hesitate to recommend Pendragon Home Improvements." - John, Bridgend
"Amazing service, by an amazingly down to earth and professional business ! Talk to you through the process and happy to make changes honestly great value for money ! All the staff are friendly and professional, fitting was all done in less than a day to a great standard ! Thankyou !" - Thomas, Cardiff
"I would just like to Thank Jules and his Team at Pendragon Windows for their fabulous service. I now am the proud owner of Nine Fantastic New Windows!.Installation went smoothly provided by a truly professional team of guys who went above all my expectations where nothing was too much trouble. Fantastic Service at a really competitive price 👏. Thank you once again." - Daisy, Cardiff
"Highly recommend. Thank you for our gorgeous windows and front door. We were worried about who to go with but the whole experience was great. Jules listened to what we wanted and his recommendations were spot on. The fitters were quick and clean and we were kept up to date with the whole process. Will definitely use again when we need other windows replacing. 😄" - Sarah, Rhiwbina
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Secured by Design
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The Glass & Glazing Arbitration Scheme

Quote Supplied

Our expert team will visit your property and provide a free quotation.

Contract

After acceptance, we will produce a written contract for you to sign.

Survey

Our team will then carry out a technical survey.

Products Ordered

We will then order your products from our specialist UK manufacturers.

Installation

Our team will then install your new windows & doors on a day that suits you.

Guarantee

Once the installation is complete, we will supply you with your FENSA certificate.

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
Replacement Composite door fitted in Pontprennau
uPVC Casement Bay Window Talbot Green
Open white upvc french door
Endurance Composite Door in Golden Oak fitted in Taffs Well Cardiff
White uPVC Casement Windows with Georgian Leading detailing in a diamond pattern
UPVC Casement Windows in Cream to compliment natural stone facade
Gold Spy Urn Knocker on Chartwell Green Etna Endurance Composite Door
Flush Casement Windows on Barn Conversion
Cream uPVC Casement Box Windows Compliment Cotswold Stone and Red Brick Home
Aluminium bi-fold doors
Horned Sash uPVC Bay Window
uPVC residential Panel door
uPVC Flush Casement Windows
We supply and fit ALUK Aluminium Windows and Doors
BFRC (British Fenestration Rating Council) Window and Door Energy and Noise Reduction Ratings
FENSA Approved Window and Door Installations
Proud members of the Glass and Glazing Federation (GGF)
Kubu Smart technology available on selected products
LEKA
We can supply the Liniar Profile for your replacement uPVC double glazed
Made in Britain
Made in Wales
Secured by Design
The Glazing Arbitration Scheme to give you the homeowner peace of mind
Yale Locks
We can supply the Optima Profile for your replacement uPVC double glazed
We can supply the Profile 22 Profile for your replacement uPVC double glazed
We can supply the VEKA Profile for your replacement uPVC double glazed windowsa

Looking for Replacement uPVC Window Advice?

If you are looking for Advice about choosing your replacement uPVC windows or doors then here are some of the top window articles from our Advice Centre.  Our Advice Centre is packed full of handy information about all aspects of replacement windows & doors

Get a quote for uPVC & aluminium windows, doors & bi-fold doors.

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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.