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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Great work from Tom & George
Great work from Tom & George
We love our new door!
Thanks GM Team
29 October 2026
Unprompted review
Great experience with G & M
I had a fantastic experience with G and M windows.
Communications through WhatsApp were prompt and helpful when getting quotes and organising the job.
The pricing was competitive.
The work was carried out by professional and friendly engineers who were a pleasure to have in the house and who clearly cared about doing a good job.
The work was completed ahead of schedule to a high standard, we were really pleased with the quality of the windows and the finish.
I would highly recommend this company.
19 October 2026
Unprompted review
New Cannon Door
Really pleased with the new door and associated porch glass. Installers did a great job in appalling storm conditions
23 October 2026
Unprompted review
Quality finish attention to detail
Quality finish attention to detail. What more can I say!!
20 October 2026
Unprompted review
Good quality windows at a fair price
Good quality windows at a fair price. Tidy installation team. Will be arranging for further work to be done. Really happy with the service.
21 October 2026
Unprompted review
Replacement windows.
Many thanks to Lee and Jack for their exceptional work. Thoroughly professional and dedicated to the job in hand.
Highly recommended.
20 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hi Stephen, thanks for great review! 😊 It's been a pleasure 👍
Great service
Really good customer service (Bryony) - I was kept updated throughout and the lads that came to fit were really good and tidy too. The door itself seems to be really good quality and I’m really pleased with the whole service
19 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Rebecca, Thank you so much for your lovely feedback! 😊 We're really happy to hear you're pleased with your new door and the service from our team. It's great to know everything went smoothly and you were kept updated throughout. We really appreciate your kind words and thank you again for choosing G M Windows & Doors!
Using GM windows doors was a great…
Using GM windows doors was a great experience and easy to deal with. The two composite doors they supplied and fitted are exceptional quality and would have no issues recommending them.
Brilliant!
15 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey, thanks for leaving a fantastic review! Its been a pleasure and thank you for the recommendation😁
Excellent workmanship
We are very happy with our new windows.Andy and Callum worked hard,and did an excellent job.
2 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Eileen, thanks for leaving a lovely review, its been a pleasure! 😊
Great service and happy with the work
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 timeframe they quoted. Everything you want really when so many companies just fail to turn up or send quotes etc. The guys that came out to fit the doors were very nice and friendly, clean and tidy, did a great job and could tell they took pride in their work. Would definitely recommend
30 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Claire, Thank you for taking the time to leave us such a lovely review! 😊 We're so glad everything ran smoothly from your initial enquiry right through to installation. It's great to hear our team's hard work and attention to detail didn't go unnoticed! We really appreciate your kind words and recommendation. Thank you for choosing G M Windows & Doors!
Great Company
Back door delived and fitted on time. It is great quality.
Superb, friendly and efficient workmanship. Definitely recommend G W Windows & Doors
9 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey, thanks for leaving a lovely review! Its been a pleasure 👍
Very helpful team
Very helpful team. Bryony was always responsive and an overall great service and experience! Thank you so much!
Highly recommended.
1 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Anthony, thanks for leaving a great review and for the recommendation! 😊
New Door and Frame
The complete process has been excellent. Full product range provided, types, technical spec etc. Great quality door and frame installation. Lovely looking door. Andy and his assistant arrived at pre agreed time and left us with a clean and tidy hall and frontage.
Also excellent customer service from Bryony in connection with sales info, installation dates and payment process. Would definitely recommend this well run company to anyone looking for new doors/windows etc.
2 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Pamela, Thank you so much for your wonderful feedback! 😊 We're really pleased to hear you're happy with your new door and the service you received from start to finish.Your recommendation means a lot to us, and we really appreciate you choosing G M Windows & Doors!
Great service and product
From coming to measure up to the install itself, GM Windows & Doors were faultless. I was kept up to speed with everything via WhatsApp and the two guys that came to fit my new sash window were very friendly and considerate of my home. As a woman living alone, you sometimes get anxious about having trades in doing work, but I felt comfortable having them in my house. I will definitely be using GM Windows & Doors for the remaining windows in my house that need replacing, as the final product was perfect.
11 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Amy, Thank you so much for such a lovely review! 😊 We're delighted to hear you felt comfortable and at ease with our team throughout the whole process, as that's really important to us. It's wonderful to know you're so happy with your new window, and we look forward to helping you with the rest of your windows in the future! Thank you again for choosing G M Windows & Doors!
An excellent job by GM Windows and…
An excellent job by GM Windows and doors. I had a new front and back door fitted, four windows and some brickwork done. The lads were on time, very tidy workers and did a superb job fitting a quality product. Would highly recommend them!
2 October 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Paul, Thank you for taking the time to leave us such a fantastic review! 😊 It's great to hear you're so pleased with the work carried out and the service from our team. We really appreciate your kind words and recommendation. Thank you again for choosing G M Windows & Doors!
An excellent job
Andy was very friendly and did an excellent job. Left the place tidy as well.
29 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey, thank for leaving a great review! 😁
Andy did a great job installing our new…
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 over whatsapp with clear communication from initial request to quote through to install.
22 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey, Thank you so much for your lovely review! 😊 We're so pleased you're happy with your new windows and door. ! We really appreciate your support and hope to work with you again in the future!
Quality work & fantastic communication
Andy & Callum arrived at the agreed time, were very friendly and did a top quality job with minimal mess.
21 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Gary, thanks for the great review! 😊Were glad you was happy with the service from start to finished, its been a pleasure! 👊
Very good communication via WhatsApp…
Very good communication via WhatsApp regarding the fitting. Quotes and invoices via email- no issues. Two lads that came were professional, completed the job with no issues and cleaned up well after themselves. Had one window changed. Would recommend, no issues.
17 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Sonya, thank you for the lovely review! It's been a pleasure and thank you for the recommendation 😁
Fantastic communications from start to…
Fantastic communications from start to finish. Window looks great and the installers made sure I was happy with everything once completed. From measuring up, initial quote and order through to final installation the service was quick and everything was completed on time.
10 September 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello David! Thank you so much for your kind review! 😊 We’re delighted to hear you’re happy with your new window and the service you received throughout.
We always aim to make the whole process as straightforward as possible, so it’s great to hear everything was completed smoothly and on time. Thank you for choosing G. M. Windows & Doors!😊
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