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
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Created with AI, based on recent reviews
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.
Unit 1 Weston Street, BL3 2SB, Bolton, United Kingdom
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. 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.

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
Excellent customer service, Bryony kept me informed from start to finish. I have no hesitation in recommending GM Windows and Doors.

Reply from G M Windows & Doors Ltd
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

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
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!

Reply from G M Windows & Doors Ltd
Very efficient from planning to completion.
Very pleased with the end product, the door and surrounds look great.

Reply from G M Windows & Doors Ltd
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 👌

Reply from G M Windows & Doors Ltd
A well deserved 5 stars excellent service from start to finish,Thankyou

Reply from G M Windows & Doors Ltd
Friendly and helpful service from start to finish. We are really pleased with our new front door. Would 100% recommend.

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
Reliable and quick turn around, exactly what we wanted and would use again.

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
Very professional. Quick job and amazing customer service. Would recommend using this company.

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
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

Reply from G M Windows & Doors Ltd
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.

Reply from G M Windows & Doors Ltd
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!

Reply from G M Windows & Doors Ltd
They came on time very quickly efficient

Reply from G M Windows & Doors Ltd
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.