Andy did a great job installing our new windows and door, very happy with the quality and fitting service. Would use GM windows & doors again in a heartbeat. Bryony also has been very responsive ov... See more
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
Great communication and service, communication over WhatsApp with Bryony was great. They provided a formal quote quicky, came out to measure up when they said they would and fitted doors within the ti... See more
Company replied
Just had new bedroom bay and bathroom replacement windows fitted. Competitive price and efficient service. Slight wait for install but worth it for high quality finish. Fitters took all waste away an... See more
Company replied
just had 6 replacement windows fitted. The whole process was efficiently done from the initial request, all the way through to final completion. Staff were great,from admin side to the fitters. Done i... See more
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Company details
Written by the company
George Martindale started G M Windows & Doors Ltd the Bolton-based double-glazing windows and door replacement business in March 2018. He brings a passion for delivering outstanding work and a wealth of knowledge to support it. George started in the industry while working for his father’s window fitting company Martindale’s, in Bolton. There, he gained immense insights into the best techniques and quality of materials and how he began establishing a solid network of contacts within the trade. His natural eye for detail and seeing first-hand how to run a successful business gave George the confidence to venture independently. What started as just George, a van, and word of mouth, is now a business with over 100 5 Star reviews. The first apprentice is now one of the top fitters in the region, and the fleet of vehicles is continuously expanding. You can find various services, from installing new doors and windows to repairing and replacing existing ones. G M Windows & Doors have an extensive range of products, such as the best composite doors, window replacement, casement windows, and double glazing, to find the perfect solution for your home.
Contact info
Unit 1 Weston Street, BL3 2SB, Bolton, United Kingdom
- 01204866508
- info@gm-wd.co.uk
- gm-wd.co.uk
5.0
Excellent
470 reviews
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
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Really great experience
Really great experience with G M Windows & Doors from start to finish. Everything ran smoothly and the new front door is great quality – we’re really pleased with it.
The team were all friendly and professional, and communication was spot on. Being able to chat on WhatsApp made it super easy to keep track of everything, so we always knew what was happening.
Would definitely recommend 👍
March 13, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Holly😊 Thank you so much for your lovely review! We’re really glad to hear you’re pleased with your new front door and that everything went smoothly from start to finish.
It’s great to know the WhatsApp updates made things easier for you too – we always try to keep things as simple and clear as possible.
We really appreciate your recommendation, it means a lot to us 😊
Had French doors replaced
Had French doors replaced. Everything from the quote to the fitting ran smoothly. Communication was excellent. Fitting was done at a time to suit me, efficient and all cleaned up afterwards. Nothing was too much trouble and all were friendly and helpful. Would recommend.
March 2, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Anna 😁 Thank you so much for your kind review! We’re really pleased to hear everything went smoothly from start to finish and that you were happy with the service.
It was a pleasure working with you, and we truly appreciate the recommendation 😊
Windows
Communication from Bryony was excellent, kept us informed throughout the work being carried out. The guys fitting the windows did a great job. Well done. 😀
March 3, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Graham, Thank you so much for your lovely feedback! 😀
We’re really pleased to hear that Bryony kept you informed and that the team did a great job with the windows. We’ll be sure to pass on your kind words — Thanks for choosing G M Windows and Doors😊
I would highly recommend G M Windows…
I would highly recommend G M Windows and Doors. Reasonably priced, compleated within a month. Declan Harry and Harvey did an amazing job with the installation everything left clean and tidy. I am really impressed with the quality of the work. Just brilliant 👏
March 10, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Mrs Evan Thank you so much for your amazing review! 😊
We’re thrilled to hear you’re impressed with the quality of the work and that the lads did a great job. It’s fantastic to know everything was completed on time and left clean and tidy. Your recommendation means a lot to us—thank you for choosing G M Windows and Doors! 👏
It was an excellent job and they where…
It was an excellent job and they where very polite.
March 10, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Josephine, thank you for lovely review!😊 It's been a pleasure
Great Company
Great service with great communication, door was fitted in a couple of hours
December 23, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Leigh, Thanks so much for your kind review! 😊
We’re really glad to hear you were happy with the service and communication, and that the installation went smoothly.
Thank you for choosing us, we really appreciate it!
Very impressed with this company
Very impressed with this company. George called when promised to measure up and quote for my property to have 2 new doors and windows fitted through out. George was very helpful and gave good advice on style and colour, he also kept us informed through out the whole process which is a rarity in this day and age. his team came and did a great job and left the property as it was, clean and tidy, no mess. I would highly recommend.
March 1, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Paul, Thank you so much for the great review, we really appreciate it!👊
It was a pleasure helping you choose the right doors and windows, and we’re glad you were happy with the advice and communication throughout. I’ll also pass your kind comments on to the team — they’ll be pleased to hear it.
Thank you again for choosing G M Windows & Doors Ltd, and for the recommendation! 😊
New door and surround
Declan and Harry arrived and just got on with the work .
Very polite, professional and respectful.
Tided up and left everything clean and tidy.
March 4, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Alison, thanks for a lovely review! We're glad to hear you're happy with the work, and that everything was left clean and tidy. It's been a pleasure 😁
Professional company
Bryony was fantastic throughout the whole process, keeping me informed every step of the way and always being available to answer any queries. The turnaround was incredibly quick—from the initial contact to ordering and fitting the door.
Harry and Declan arrived right on time and were friendly, professional, and a pleasure to have around. They did an excellent job fitting the door and left everything neat and tidy.
Overall, I would 100% recommend G M Windows & Doors Ltd for their efficiency, communication, and quality of work.
Thank you again,
Wendy
March 6, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Wendy, Thank you so much for your lovely review! 😊
We’re really pleased to hear you were happy with the whole process and that Bryony kept you well informed throughout.
We truly appreciate the recommendation, and if you ever need anything in the future, please don’t hesitate to get in touch. Thanks again for choosing G M Windows & Doors! 👍
Amazing experience!
The service from start to finish was exceptional, very friendly staff, great price and the workmanship is flawless love our new door, there's no one better than these! Thankyou!
February 26, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Adam, Thank you so much for the lovely review! 😊
We’re delighted to hear you’re happy with your new door and that the whole process from start to finish met your expectations. If you ever need anything in the future, please don’t hesitate to get in touch👍
Great work and great price
Great work and great price. No complaints and would be happy to use their services again.
March 4, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Lorna, thanks for taking the time to leave a review! Its been a pleasure 😁
Great workmanship
Great workmanship, fair pricing, and excellent customer service from bryony she was extremely helpful I would definitely recommend them to anyone needing window repairs or glass replacement.
February 25, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Katie, Thank you so much for your kind review! 😊
We’re really pleased to hear you were happy with the workmanship and service. We truly appreciate the recommendation, and if you ever need anything in the future, please don’t hesitate to get in touch!
Glass replacement.
Recommended by a family member.
Very knowledgeable,friendly,efficient service.
One double glazed unit replaced.
Competitive rate...excellent service both pre and post fitting.
Kept very informed about timescale and arrival time.
Highly recommend!!
February 26, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Debra 😊 Thank you so much for your kind words and recommendation!
We’re really pleased to hear you were happy with the service and that everything—from the initial quote through to the fitting—went smoothly. It was a pleasure carrying out the replacement for you!
Professional service and great attention to detail
Highly recommend G M Windows & Doors. They replaced our window and fixed a lead flashing issue professionally. A special thanks to the team for going the extra mile by adjusting some window handles so they are properly aligned and easy to use. Great communication throughout from Bryony as well. Very happy with the result!
February 24, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Tyler, Thank you so much for your fantastic review! 😊
We’re delighted that you’re happy with the window replacement and the lead flashing repair. The team will be thrilled to hear your thanks, especially for taking the extra time to adjust the handles for perfect alignment and ease of use.
We’re also pleased that Bryony’s communication made the process smooth. It’s great to know you’re so happy with the finished result!👍
Fantastic service
Paul and Taz came to install a new front door for me. They were fantastic and caused minimal disruption to my day as I worked from home. The finish on the job was outstanding and they left the job absolutely spotless. The customer service from Bryony has been second to none all the way through the process, communication is excellent and supportive. Highly recommend GM windows to get the job done!
February 24, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Karl, Thank you so much for your amazing review — it really does mean a lot to us! 😊
We’re so pleased to hear that Paul and Taz looked after you and kept disruption to a minimum while you were working from home.
It’s also great to hear you were happy with the communication and support throughout!
Thank you again for the recommendation and for choosing GM Windows😁
Exceptional service
Exceptional service, superb quality products and great all round customer experience.
February 26, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Malcolm, Thank you so much for your lovely feedback — we really appreciate you taking the time to share it! 😊
We’re so pleased to hear you’re happy with the service and the quality of the products. It was a pleasure working with you, and if you ever need anything in the future, we’re always here to help.
5* Front Door
Recently had a new front door installed and couldn’t be more delighted with the whole experience from start to finish.
Professional, helpful, accomodating around our schedule throughout and clearly take pride in their work with an efficient and high quality install.
Outstanding service and would highly recommend to anyone looking for a reliable window and door installation company.
February 16, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Daniel 😊Thank you so much for your fantastic review! 😊
We’re absolutely delighted to hear how happy you are with your new front door and the overall experience. It’s great to know the team were professional, accommodating, and delivered an efficient, high-quality installation.
Your recommendation truly means a lot to us — thank you for your support, it been a pleasure! 😁👊
Easy process and great value
Straight forward advise and options. Quick lead time. The people installing were very competent and friendly and cleaned up afterwards too. Would certainly use them again!
February 16, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey 😁Thank you so much for your great review!
We’re really pleased you found the advice clear and the process straightforward, and that everything was completed quickly. It’s lovely to hear the installation team made such a positive impression and left everything neat and tidy.
We’d be more than happy to help again in the future — thanks for your support!
Great experience from start to finish
Great experience from start to finish. Received good advice and the price was very reasonable. Great craftsmanship, we love our new windows and front door.
February 12, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey James & Julia Thank you for your fantastic feedback! 😊
We’re so pleased everything went smoothly and that you felt well looked after throughout the process. It’s great to hear you’re happy with the quality of the work and that you’re enjoying your new windows and front door.
We truly appreciate you choosing us — thank you again!
Bi fold doors
The doors were measured and a very reasonable price was quoted for bi folds with internal blinds. We went ahead with the order and they were delivered and fitted yesterday as booked. The lads that came to fit them turned up on time, were very friendly did a great job. We will definitely be using the company again and have already had them measure up for a new window.
Great company and no issues at all
February 20, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Aaron, Thank you so much for your wonderful review! 😊
We’re delighted to hear you’re pleased with your new bi-fold doors and internal blinds. It’s great to know everything went smoothly from measuring and quoting right through to delivery and fitting.
We’re buzzing to hear you’ll be using us again! Thanks for your support, and we look forward to working with you on the new window.😊👊
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