Window & Door Repair Services Cardiff
For more than 20 years, we’ve been providing a valuable service to our customers in and around Cardiff.
We strive to provide a fast, clean, and efficient service throughout Cardiff and the Vale of Glamorgan.
As part of our ongoing commitment to both old and new customers.
Our small, family-owned business has earned a reputation for offering a prompt, hassle-free, and trusted service.
Small enough to care, but big enough to cope.
Whether you are a business or a domestic customer, we can fulfil your needs.
We are double glazing repair experts who work on uPVC, wood, and aluminium windows and doors.
You can count on us to repair, replace, and maintain your doors and windows to the highest of standards because we’ve been in business since 2001.
Home Improvements & Composite Doors
We supply and install a fantastic range of attractive and highly versatile composite front doors.
These doors were created by us in Cardiff, and with your home’s security and energy efficiency in mind.
Free quotes are available every time, as well as a full supply and installation service.
For your Cardiff home, composite doors provide excellent energy efficiency and security.
We’re sure there’s one to suit your need, with a variety of designs and colours to suit your style and budget.
We are industry experts who can answer any questions you may have about our products and our diligent team are waiting to take your call.
From glazing repairs to various glass and frame styles, to the installation of your new composite doors, we’ve got you covered.
We’re so sure that you’ll love our products and be happy with the service and fitting, that they all come with a 10-year warranty, allowing you to rest easy knowing you’ve made a wise choice.



Why choose Decorative Glass & Glazing?
- Established for over 15 years
- Approved by Which Trusted Trader
- Fast, efficient and reliable fitters
- Glass and glazing specialists
- We offer Free quotations
- Highly recommended by our local customers
- FENSA registered (number 31498)
- Co. Reg (3982626) Registered in England and Wales (2001)
- Commercial and domestic services available
- Door and window repairs

Window & Door Services Provided
- Window and door repairs
- Velux Windows and Velux Window Repairs
- New window and coloured composite door installations
- Fascias and guttering
- Stained glass
- Broken or misted glass replacement
- Faulty or broken hinges, handles and locks
- Patio door problems
- Draughty or leaking windows, doors and conservatories
- Cat flaps, letterboxes and door panels
- Upgrades on locks and handles
- General home improvement
- Conservatory roof panels
- Free advice from a friendly, reliable company
- For further information & services see our sub heading

Latest Reviews
- Claire Bamsey7/24/2020
testimonial From the initial telephone enquiry to the completion of the job, professionalism and courtesy of the staff were outstanding. Times and dates were adhered to as well as the price quotation and we were kept informed by e-mail or phone. I would unhesitatingly recommend this company.
Anthony Leader8/15/2019 -
Used to service / repair gap in conservatory doors. From initial assessment visit to actual service / repair the service we received was very good – prompt, polite, clean and everything explained. Will definitely be keeping their number for future use �
Taff Jones12/08/2017door repair I have used this company before and each time have been extremely pleased with the finished job. They are proficient and punctual friendly also. I would be happy and confident to call upon them in the future.
Margaret Worbey11/26/2019 -
Prompt, reliable, punctual, polite and pleasant staff. Excellent job completed within the promised time scale.
Susan North2/16/2018Very satisfactory workmanship and total cost came inside the original quotation based on time actual This is the second occasion of service to remedy minor but significant things — out of alignment front door / impossible to use bi fold door and hinges replacing in bedroom fanlight window. All dealt with promptly and to our complete satisfaction . Highly recommended by us. Dave Burston/ Cardiff
CarysB-512/11/2017would use again definitely Had some minor work done to two doors recently and the work was excellent – the men that came to price and then do the work were very courteous. I would definitely recommend to friends as they were so reasonable, it was unbelievable compared to another quote I received. Also the person the phone was great – very friendly and courteous.
JohnH-173410/08/2019 -
I have been a customer of this company for many years and they are consistently good. The visits to assess and measure requirements are done quickly and the supply and fitting done very efficiently. When I did have an issue with misaligned decorative leading in one of my units, the matter was dealt with very quickly and fuss free. The fitters are always polite and knowledgeable and leave the place tidy after the job. I find the product is good value for money. I would happily recommend them.
Lillibet Anne1/20/2021Excellent company Recently had a replacement double glazed unit fitted and received the usual excellent service I have come to expect from this company. Have used them a number of times in the past for various repairs and have always been satisfied. I would have no hesitation in recommending them.
PJB-19963/29/2021Glass Replacement Great Job and cannot fault the service
Umran Malik11/14/2019 -
excellent prompt service Very pleased with the glazing provided and the care taken by the fitters to meet our requirements, first class .
dave dee11/12/2021My wife and I have used them a number of times over the years for window repairs. They are efficient, well-run, friendly and their prices are reasonable. Would highly recommend.
Phil Nifield6/16/2020Disappointed Like the other review, i had a recommendation but this was from someone who had decorative glass not double glazing side….i was very disappointed. Am looking to have replacement windows and porch this summer but in the meantime needed a few repairs:, 2 of which were good but the other so poor it cancelled all the good equity of the others!!!! They have come back and redone but this meant I had to take another half day off work. Thankfully I took before and after photos as proof. Still not entirely right but I don’t want them back. I will have to look elsewhere now for my replacement windows!
BANDP1/30/2013 -
My family has used decorative glass on two or three occasions always efficient show up when they say they will and do a top notch job in good time. Thanks for the great work guys i’m sure there will be more for you in the future
Sion Dean10/03/2019First class service from office staff and fitters , best quotation received, fitters were very friendly , efficient and clean, will certainly use them again and refer them to all family and friends. Thank you all.
Tony McCarthy5/10/2021Superb service! Excellent company , i required a replacement window that had become misted over time as the seal had be broken. This company provide a great service , i had a same day call out and quote within 24hrs . the gent who attended was very polite and helpful. To top it off the price was very competitive!! Thank you 🙂
Phil Jones8/07/2020 -
Great Service! I have used Decorative Glass & Glazing twice, and on both occasions they have been great. They are friendly, attentive and above all do a very good job at a fair price. They are extremely clean and tidy, when they left you wouldn’t know they had been there, except for my nice new windows. I highly recommend this company.
TonyC-24210/13/2017 -
Excellent service, fast efficient, good price, I would recommend this company. Great work on the stained replacement units they look fab.👍
Don O’Driscoll2/19/2019I’ve used this company twice now. Once to replace a glazed unit in a kitchen window and most recently to supply and fit a set of sliding doors. On both occasions they provided excellent service, were prompt and efficient and excellent value for money. Highly recommend and will use again.
Peter Mann10/09/2018 -
Would use again Efficient, reliable and reasonable. We had 4 double glazing units replaced and were very happy with the overall service and product. Would recommend.
kellybach19773/08/2013 -
We would highly recommend this firm.They were very thorough, professional, prompt and did a fantastic job of repairing all our windows and doors.. We can’t believe how much warmer our home feels now. No more draughty windows and doors.Looking forward to lower electricity bills in the future! Thank you.
Joanne Williams1/26/2019 -
I was delighted to learn that the guys were able to rotate my existing window contrary to advice from another company. They did a very clean and efficient job of this and replacing a misted window in our garden room. Excellent service and excellent value. It’s made such a wonderful difference to the view onto our garden. Thank you so much!
Rachel Jones3/28/2021
Contact Us About Window & Door Services Cardiff
For more information on uPVC window & door repairs or if you are looking for brand new composite doors for your home in Cardiff & the surrounding area, contact our trusted team. As experts in our industry we are equipped to assist you with any questions you might have.
To book a consultation with us, simply contact us directly and one of our experts will assist you with your enquiry.
Guarantees/Warranties are insurance backed on all doors and windows installed.
Guarantees/warranties are not insurance backed on all the other items installed.
Where we are unable to resolve your complaint using our complaints procedure, as a which? Trusted Trader we use dispute resolution ombudsman for dispute resolution.
In the unlikely event that we cannot remedy your complaint to your satisfaction you may wish to refer your complaint to them.
If you wish to do so please contact Which? Trusted Traders in the first instance on 03332413209.