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
Company replied
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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
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
This is an exceptional company
This is an exceptional company. The initial quote was competitive and the subsequent service outstanding with a prompt reply anytime day or night! The fitting of the door was carried out efficiently and politely. Very pleased with our new door and will use this company again.
December 6, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Julie😁Thank you for your kind words. We are so pleaser to hear you found our services responsive, friendly and efficient! It’s great to know you’re happy with your new door, and we truly appreciate your trust in us. We look forward to working with you again! Its been a pleasure 👍
Great service
Came out to measure really quickly, the service of all staff was incredible. The quality of my new window and door is so good. The fitters tidied up once they finished. I am very happy with G M Windows and I will be using them again.
December 4, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Sally😊Thank you so much for your lovely review! We’re delighted to hear you’re happy with the service and the quality of your new window and door. We really appreciate your support and look forward to helping you again in the future!
Excellent customer service
Excellent customer service, Bryony kept me informed from start to finish. I have no hesitation in recommending GM Windows and Doors.
December 3, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Hannah 😊Thank you for your wonderful review! We're delighted to hear you were happy with the service you received throughout. Your recommendation means a lot to us. If you ever need anything in the future, we’re always here to help!
Excellent service and care
Excellent service and was treated with the upmost respect got a lovely new bathroom window fitted from first phone call to completion only took 2weeks
December 2, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Linda 😊Thank you so much for your lovely review! We’re really glad to hear you’re happy with the service and your new bathroom window. It was a pleasure to help, and we appreciate you taking the time to share your experience. If you need anything in the future, we’re always here to help!
Absolutely fantastic product and…
Absolutely fantastic product and service with a new front door. Excellent service and communications from Bryony. Declan and Gerry did a great job and are a great asset to the company. Would definitely recommend and use again.
December 2, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Clare😊 Thank you so much for your fantastic review! We’re thrilled to hear you’re pleased with your new front door and the service you received. We really appreciate your recommendation and would be more than happy to help again in the future!👍
New sliding patio doors with integral…
New sliding patio doors with integral blinds fitted.
Communication could not have been more polite, friendly and informative with everyone at this company.
The quality of the patio unit is excellent and the fitting was professional and meticulous.
Cost was also extremely good value.
I have no hesitation in recommending this company.
November 25, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Christopher😊 Thank you so much for your wonderful review! We’re delighted to hear you’re happy with your new patio doors and integral blinds. It’s great to know our team’s communication and workmanship made the process a positive one for you. We really appreciate your recommendation and your kind words about the quality and value. Thanks again for choosing us, its been a pleasure👊
Fantastic company
We’ve used G M twice now and I would never go anywhere else for my Windows and Doors! Excellent customer service from start to finish from both Bryony and the fitters. Brilliant company, highly recommend!
November 28, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hello Hannah 😁 Thank you so much for your continued support! It means a lot to us that you chose GM again, and we’re delighted to hear you’ve had great experiences each time. The team will be thrilled with your kind words. We really appreciate the recommendation!
Very efficient from planning to completion
Very efficient from planning to completion.
Very pleased with the end product, the door and surrounds look great.
November 19, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Meg! 😊 Thank you for your lovely review! We’re so pleased to hear everything went smoothly from start to finish and that you’re happy with the new door and surrounds. We really appreciate you taking the time to share your feedback!
Fantastic company to deal with and…
Fantastic company to deal with and first class workmanship, would recommend this company to anyone, from making contact and arranging a visit, George did a great job of measuring up, nothing was to much trouble, communicating with the office, again, Bryony kept us up to date with everything, Steve the fitter again, fantastic fella, great work ethics and standards, nothing was to much trouble. Thanks GM windows 👌
November 24, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Ian, Thank you so much for your wonderful review! We’re delighted to hear you had such a positive experience with our whole team. We really appreciate your recommendation and your kind words. Thanks again for choosing GM Windows! 👌
A well deserved 5 stars excellent…
A well deserved 5 stars excellent service from start to finish,Thankyou
October 30, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Mrs Skipp 😊 Thank you so much for the fantastic review! We're thrilled to hear you had such a great experience with us from start to finish. Your kind words mean a lot, and we truly appreciate your support!
Friendly and Helpful Service
Friendly and helpful service from start to finish. We are really pleased with our new front door. Would 100% recommend.
November 10, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey, thank you for your kinds words and lovely review! It's been a pleasure 😊
I cannot praise this company enough
I cannot praise this company enough. If there were 10 stars possible, that would be my rating. From the first contact with the company every step of communication was clear, articulate and helpful. Bryony was prompt and helpful every step of the way.
My job was completed to the highest standard by the two young lads Jack and Paz who never took a break and worked endlessly throughout the day. They were extremely clean and unobtrusive throughout however helpful whenever I asked questions.
Overall so professional, friendly, trustworthy and helpful. Absolutely every single part of this entire process was completely perfect and I couldn’t be happier with the result. Again I can’t speak highly enough of this company and would highly recommend you choose them for any services related to window and door installation or replacement you will not be disappointed. It can be hard to find the right company to provide the best service for you, I found G&M Windows and Doors on the google search engine and chose them because of their 5 star reviews and now I understand why they have consistently received 5 star reviews. Amazing thank you.
November 4, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Gill, Thank you so much for your wonderful review!😊We’re thrilled to hear that you had such a positive experience from start to finish and that you’re so happy with the results. It means a lot to know our team’s hard work and care made a difference. We truly appreciate your kind words and recommendation! It's been a pleasure👍
Reliable and quick turn around
Reliable and quick turn around, exactly what we wanted and would use again.
November 4, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Sarah! Thank you for your review, it's been a pleasure😊👍
G M Windows & Doors are an exceptional…
G M Windows & Doors are an exceptional company! I cannot scream loud enough how happy we are with the service and quality of the installation. From the outset, contact with them was frequent, informative, super friendly and professional. The quality of the product is bang on! The fitting teams was amazing and dealt with the awkward quirks of our house perfectly and all with a smile. The finishing of the trim inside and out is faultless.
I would highly recommend G M Windows to family and friends.
October 31, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Mark, thank you so much for such an amazing review! We're absolutely thrilled to hear that you're so happy with both the service and the quality of the installation. We really appreciate your kind words and the trust you've placed in us. It was a pleasure working with you!😊👍
Very professional
Very professional. Quick job and amazing customer service. Would recommend using this company.
October 31, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Ines, thanks for the review!😊and for the recommendation👍
Window replacements
From initial enquiry to completion GM windows have been a pleasure to deal with. Bryony is extremely helpful and nothing has been too much trouble. Neil (surveyor) and Paul (fitter) & co were an absolute pleasure to deal with. We have absolutely no reservations in recommending GM windows.
October 31, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey John, thanks you so much for the lovely review! We're buzzing to hear you had such a positive experience with the whole team. We really appreciate your recommendation and look forward to working with you again in the future!😊👍
Brilliant job
G and M fitted my new patio doors and bathroom window. From Bryony in the office to the two Steves who were the fitters they were brilliant. I was kept informed of progress at all times and rhe lads turned up bang on time and got on with the job. I love my new doors
October 27, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Zoe. thank you for a lovely review. We love your new doors too, and think they look fab! It's been a pleasure 😊
We are living abroad and our tenant…
We are living abroad and our tenant needed a new front door. GM fitted a quality door in a professional manner. We’d be happy to employ them again to for other windows and doors.
October 27, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Mark, thank you for a great review! It's been a pleasure, we're looking forward to working with you again😊👍
Oustanding service
Outstanding service from inquiry to install! Bryony was really helpful over the phone and pushed my order through pretty quickly. The install guys did an incredible job the finish is so neat and looks fab. The quality of the doors and windows are also really great. 5 star service all round!
October 27, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Gemma, Thanks for your review😊we are buzzing that you had an amazing service from start to finish, it's been a pleasure! 👍
They came on time very quickly efficient
They came on time very quickly efficient
October 24, 2025
Unprompted review
Reply from G M Windows & Doors Ltd
Hey Jyoti, Thank you for your review! We are buzzing that you're happy with your door supply & installation😊 its been a pleasure!
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