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
Company replied
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Review summary
Based on reviews, created with AI
What people talk about most
Based on these reviews
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 initi... See more
Company replied
Excellent service! Such a friendly and helpful team. Explained the options to me and we're on hand to help on WhatsApp. They were superb at fitting my new door - covering things in my house and cl... See more
Company replied
New cannon back door fitted. GM windows were so easy to deal with from the first phone call to finishing the job. They were highly professional and organised. So much choice in the brochure and it's g... See more
Company replied
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
Replacement windows
Friendly and professional throughout. Did a great job.
April 7, 2026
Unprompted review
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New external door
The door fitting work and associated organisation of the job was first class. Would definitely recommend the company.
April 14, 2026
Unprompted review
Great communication and support…
Great communication and support throughout. New window is perfect.
April 8, 2026
Unprompted review
just had 6 replacement windows fitted
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 in advance of original date. The fitters were very good and did an excellent job , including cleaning up at the end to leave us very satisfied with the whole job. Would highly recommend GM Windows.
April 9, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Mr Foster, Thank you so much for your lovely review 😊 We’re really pleased to hear you’re happy with your new windows and that the whole process was smooth from start to finish.
It’s great to know the team were efficient, friendly, and left everything clean and tidy—we’ll be sure to pass your kind words on to both the office staff and fitters.
Thanks again for your recommendation of GM Windows and Doors, it really means a lot to us!😊
Excellent quick response to my query. Courteous staff. Good price.
Go windows responded to my query extremely promptly
It was only a small job but others either didn’t reply or didn’t turn up.
Neil was courteous and did a good job.
Price excellent. Would recommend.
April 10, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Loraine, Thank you for your lovely review 😊& thank you for your recommendation, its been a pleasure! 👍
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Rear Garage window and door
From my first enquiry to getting the final bill, I would highly recommend the service, quality of product and the staff all round have been excellent. Thankyou for a great job.
April 10, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Keith, thank you for the lovely review! 😊we're glad you had a fab experience with us from start to finish!
Its been a pleasure, thanks again!👍
Excellent French Door Installation
Excellent French Door Installation – Highly Recommend GM Windows and Doors
We recently had French doors fitted, including a brick-out, by GM Windows and Doors, and we couldn’t be happier with the result. From start to finish, the service was professional, efficient, and well organised.
The brick-out work was completed neatly and with great attention to detail, and the new French doors look fantastic. The fit and finish are excellent, and everything was left clean and tidy once the job was completed.
The installation was completed to a very high standard and has made a huge difference to both the look and feel of our home.
We would definitely recommend GM Windows and Doors to anyone looking for quality workmanship and reliable service.
Thanks to George and the lads and also would like to thank bryony for keeping us up to date and getting the doors booked in .
April 2, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Grant! Thank you so much for your amazing review 😊 We’re really pleased to hear you’re happy with your new French doors and the brick-out work, and that everything was completed to a high standard and left tidy.
Thanks again for recommending GM Windows and Doors, it really means a lot 😊
Replacement of 7no windows
Complete survey carried out for 7no windows then competitive detailed quote received which avoided a return to measure.Bryony and George gave us an excellent service and kept in touch throughout
George advised on a suitable frame supplier to match the existing window profiles from the survey photos.
Installation started and completed on time and the team were very friendly and tidy.
Minor problem with one glazed unit scratched/material trapped was sorted out within a couple of days with no quibble.
I would definitely recommend GM Windows and Doors.
March 18, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Kevin 😊 Thank you so much for your kind and honest review.
We’re really pleased to hear you’re happy with the service from start to finish, and that the installation was completed on time and to a high standard.
It's been a pleasure! and thank you for the recommendation😊
Top quality windows at a great price
Top quality windows at a great price.
Fitters were very tidy and did a fantastic job
March 23, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Emma 😁 Thank you so much for your kind words 😊 We’re really pleased to hear you’re happy with the quality of the windows and the price.
We’ll pass your lovely feedback on to the fitters too.
Thanks again for taking the time to leave a review and for recommending us!
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So pleased with my new front door
So pleased with my new front door - made bespoke to fit perfectly. Stylish and great quality. Bryony kept in touch throughout the process and kept me updated with progress - Kyle was excellent fitting the doors. Smooth process - couldn’t be happier - 100% recommend 💜
March 20, 2026
Unprompted review
Reply from G M Windows & Doors Ltd
Hey 😊 Thank you so much for your lovely review 💜 We’re really pleased to hear you’re happy with your new front door and that everything went smoothly for you.
Thanks again for the recommendation, it means a lot!
Purchase of Sliding Patio Doors
I was very impressed with the company from the start. They were easily contactable, extremely helpful and gave me a competitive price. The 2 lads who came to fit the patio doors were very respectful of my property, worked efficiently and tidied up after themselves. I would have no hesitation in recommending this company.
March 16, 2026
Unprompted review
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 😊
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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!
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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! 👍
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