Welcome
When you choose Pendragon Windows & Doors, you choose a professional Cardiff based double glazing installation business supplying & installing a fantastic range of high quality, energy efficient & bespoke windows & doors.

Enhancing your home is simple with Pendragon Windows & Doors. We provide a personalised service, collaborating closely with you to create tailored & appropriately designed window & door systems to enhance your home. From initial consultation & quote, through to ordering & installation, our friendly team of experts take care of you, every step of the way.

Get a free quote from Cardiff & Bristol’s leading double & triple glazing installer today.
Get a Free Quote
Replacement Windows
Cardiff can boast a variety of house styles from period properties to ultra modern. Pendragon Home Improvements offer a choice of styles & finishes as individual as your property. Double or triple glazed our uPVC windows can be designed to complement your home, with a wide variety of colours, textures, wood grain effects & styles.

Aluminium windows are precision manufactured in South Wales with versatility & function in mind. Expertly installed by Cardiff based Pendragon Windows & Doors, they complement both modern contemporary & traditional style homes alike.

View Our Window Ranges
Replacement Doors
Whether you are looking to upgrade your existing Cardiff front door to a composite door, add bi-fold doors to an extension on the rear of your property or just upgrade to more energy efficient doors Pendragon can help
View Our Door Ranges
Advice Centre
Check out our articles for advice about choosing your new windows & doors, the latest news & inspiration.
Advice Centre
Recent Projects
Check out our recent projects in & around Cardiff for inspiration.
Recent Projects

Why Choose Pendragon Home Improvements?

When you’re investing in new windows & doors for your home, you want the best quality products from a team with in depth product knowledge of all double glazed window & double glazed door products.

At our Cardiff based offices Pendragon Windows & Doors have an exceptional team of design consultants & a highly trained, experienced & friendly installation team that will help bring your creative designs to life.

Whether you’re looking to install a new set of windows or a bifold door, at Pendragon Windows & Doors you can be sure of a high-quality product, designed bespoke & expertly manufactured just for your home.

Download Our Brochure

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

Choosing the Right Windows & Doors for your Cardiff Home

We offer an extensive range of products, including double & triple glazed windows & a collection of bespoke uPVC, Aluminium & Composite doors.

At our Cardiff based offices Pendragon Windows & Doors have an exceptional team of design consultants & a highly trained, experienced & friendly installation team that will help bring your creative designs to life.

From the moment you get in touch, right through to completion of the project, you can trust that you can rely on us to provide you with any advice you need & answer any questions that you may have to help You make an informed choice as to what’s best for you & your home.

Every installation undertaken by Pendragon Windows & Doors is registered with governing body FENSA & for your peace of mind backed by a comprehensive 10 year guarantee as standard*.

Double Glazing in Cardiff

As Cardiff residents know, the climate in South Wales can be a mix of sunshine, rain & chilly winds. In such an environment, having energy efficient windows & doors is important.

Other things to consider:

Frame Materials – chose frames that are durable, weather resistant & low maintenance.  Popular choices include uPVC & Aluminium 

Security – for any homeowner security is a top priority.  Our uPVC windows can be supplied to Secure by Design standards & are smart sensor enabled.

Style & Aesthetics – Cardiff’s architectural diversity allows for various window styles.  Consider the aesthetics of your home & chose double glazing that complements it’s design.

Noise Reduction – Given Cardiff’s urban environment, for homes closer to the city centre & on main roads, noise reduction maybe a concern.  Double glazing with acoustic glass such as Planitherm Comfort or Comfort Plus can help to minimise external noise, providing a more peaceful living environment.

Local Regulations – Compliance with local standards is essential.  Cardiff has 27 conservation areas that have been designated for their special architectural or historic interest, so it is always worth checking if there are any specific regulations or guidelines that apply to your Cardiff home.

How much will it cost is a question that we get asked regularly. As your new windows & doors are made bespoke to fit your home perfectly in order to give you a quote, one of our design team will need to chat to you about what you have in mind and get some measurements of the existing windows. Book a consultation through our online diary system or give us a call.

Need Inspiration for your Next Project?

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

6 Steps to your New Windows & Doors

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.

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

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