G M Windows & Doors Ltd Reviews 

470
•
TrustScore 5 out of 5

5.0

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Review summary

Created with AI, based on recent reviews

Considering 158 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the exceptional quality of the new windows and doors, noting that the fitting process is exceptionally smooth, clean, and completely professional from start to finish. Reviewers also deeply appreciate the friendly staff and helpful customer service, highlighting that communication is always prompt, polite, and reassuring throughout every single step of the project. However, some people mentioned experiencing a slight wait for the scheduled installation or encountering minor issues with specific products. Despite these minor drawbacks, consumers note that the team quickly resolves any concerns without causing any major fuss.

What people talk about most

Service

Users describe positive interactions with service, highlighting great communication and quick, detailed... See more

Staff

Customers consistently note positive experiences with staff, highlighting that support representatives and... See more

Quality

Reviewers highlight positive aspects of quality, expressing immense satisfaction with the products and... See more

Product

Clients share positive opinions on product quality, highlighting how doors and windows look fantastic and fit... See more

Customer service

Customers had positive experiences with customer service, frequently praising prompt communication and... See more

Reviews shaping this summary

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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


Company details

  1. Window Installation Service

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

5.0

Excellent

TrustScore 5 out of 5

470 reviews

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5.0

All reviews

(470)

147 reviews in the last 12 months

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Rated 5 out of 5 stars

Just used G M Windows and doors to…

Just used G M Windows and doors to replace an old UPVC back door. Excellent company to deal with very good communication from initial contact to works being completed, Works have been finished to a very high standard. I would highly recommend this company to family and friends without a doubt.

24 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Gary! Thank you so much for your kind words and for taking the time to share your experience! We’re really pleased to hear you’re happy with your new back door and the service you received. It was a pleasure working with you, and we truly appreciate your recommendation!

Rated 5 out of 5 stars

From first enquiry to the final fit…

From first enquiry to the final fit they were great with communication. The end result (new composite door) is fantastic, all tidy and old door taken away.

22 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Bob😁Thank you so much for your wonderful review! We’re so happy to hear you’re pleased with your new composite door and the service from start to finish. We always aim for great communication and a tidy, hassle-free experience, so it’s great to know we hit the mark!👍it's been a pleasure.

Rated 5 out of 5 stars

Would recommend

Professional service from start to finish.
Very happy with the results. Friendly helpful people, big thanks to Bryony, Paul and Kane.

9 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Jane! Thank you so much for your kind words! We’re thrilled to hear you’re happy with the results and had a positive experience with our team. We’ll be sure to pass along your thanks, It was a pleasure working with you!😁

Rated 5 out of 5 stars

Really impressed with the workmanship

Really impressed with the workmanship, quick friendly and clean. Most of all really impressed with the results. I love my new front door!

14 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey John, Thank you so much for your fantastic review! We’re so glad to hear you’re loving your new front door. It’s great to know you’re happy with the workmanship and the overall experience. We really appreciate your feedback! 😊

Rated 5 out of 5 stars

Trusted company

Excellent service once again from G M Windows. The prices are reasonable and the excellent workmanship means I wouldn't use anyone else. Can highly recommend George and all his team.

17 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Mick 😁Thank you so much for your continued support and kind words! We’re thrilled to hear you’re happy with the service and workmanship once again. George and the team really appreciate your recommendation—it means a lot to us!👍

Rated 5 out of 5 stars

We have installed many doors supplied…

We have installed many doors supplied by George and the team absolutely top quality products.
The company is very easy to work with responding to any queries we have straight away help and advise on there products was easy to get from them 👌

1 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Jeff, Thank you so much for the great feedback! We’re always happy to help and really appreciate your trust in our products. Looking forward to working with you again soon!👊

Rated 5 out of 5 stars

New cannon back door fitted

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 great how you can see real pictures of the doors through the WhatsApp feature brochure. The finish is perfect, everything was left really clean all rubbish taken away. Would 100% use again and recommend to others.

15 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey! Thank you so much for your kind words! We’re thrilled you’re happy with your new back door and the service from start to finish. It’s great to hear the brochure and WhatsApp feature made the process easier for you! We really appreciate your recommendation👍

Rated 5 out of 5 stars

We Love Our New Barn Door

Highly recommend… we love our new doors. Part of the project wasn’t as straight forward due to the size of the barn door/windows… but everything was completed with great precision….
Not to mention how tidy the property was left. We will definitely use GM Windows & Doors again. Katie

10 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Katherine, thank you for your kind words! We are so happy you are please with your new doors and windows and the overall job! Its been a pleasure 😊

Rated 5 out of 5 stars

Great service throughout from quotation…

Great service throughout from quotation to installation.

30 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Steven, Thank you for your review! We are buzzing that you have a fab experience from start to finish, we hope to see you again soon! 😁

Rated 5 out of 5 stars

I am very happy with the new front door…

I am very happy with the new front door and its installation. The job was done within the promised timescale by a friendly and professional duo.
I recommend GM Doors.

6 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Brian! Thank you for your great review! We’re so glad you’re happy with your new front door and the service. We really appreciate your recommendation!😁

Rated 5 out of 5 stars

Good job on a bedroom window

Lads were very polite and hardworking, completed a tricky job well and cleaned up after themselves

3 October 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Neil, thank you for your review! We are pleased you are happy with the service, it's been a pleasure 😊👍

Rated 5 out of 5 stars

Outstanding service

Exceptional service from George and his team. My windows, french doors and front door look amazing. The workmanship was excellent, very professional, courteous and attention to detail was outstanding. I would have no hesitation in recommending GM windows, very competitive and reasonable prices. Bryony was a pleasure to liaise with.

Rekha Patel

3 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Rekha, Thank you so much for your kind words! We’re thrilled you’re happy with everything and that the process smooth for you. We really appreciate your recommendation

Rated 5 out of 5 stars

Highly recommend- Amazing all round!

Amazing! 🤩 From asking for a quote to fitting and finalising the team at GM have been fantastic. Every query has been answered with eagerness by Bryony and Freya and George himself even called round to discuss parts for our job. The fitters, Steve and Johnnie, completed the job with such ease and energy. And as for the windows and doors, they speak for themselves - gorgeous!! Highly recommend!

30 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Heather!😁 Wow, thank you for such a lovely review! We’re so glad you had a great experience with the whole team. It’s wonderful to hear you’re happy with your new windows and doors, and we really appreciate your recommendation!

Rated 5 out of 5 stars

Great service from GM Mike & Paul were…

Great service from GM Mike & Paul were great and did a very good job very pleased with the windows

25 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Brian, thanks for your kind review. We will make sure to pass this onto the lads! It's been a pleasure 👍

Rated 5 out of 5 stars

We have used G M Windows & Doors Ltd a…

We have used G M Windows & Doors Ltd a couple of times now and the service is excellent. Everyone involved has great customer service, George, Bryony and all the lads who have worked at our house. They do a fantastic job and leave everything clean and tidy when they leave

21 August 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Diana, thank you for your kinds words. We are thrilled you had a lovely experience with our team, we loved working on this job for you! 😊

Rated 5 out of 5 stars

5 facet upper and lower bay renewal

I have just had my upper and lower bay windows replaced by GM Windows and Doors. The job was complex as all the wood work around the bays and the flat roof needed replacing and insulating. I’m so happy with the work that the lads have done. Paul and Ste , the fitters have done a lovely job, taking great care with the internals so that redecoration isn’t needed. Michael Hill who did the flat roof and woodwork did such a good job that neighbours noticed and took his card. All around, care and attention was taken and I am very happy.

13 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey! Thank you so much for your kind words. It's been a pleasure! We're buzzing that you've have a fab experience from start to finish, Many thanks 😊

Rated 5 out of 5 stars

High quality job, affordable price.

The workers did an excellent job. They were very professional, left everything clean and tidy afterwards. They changed my very old windows, in an old house and did not leave any cracks or damage to the walls.
I got brand new, high standard windows in an affordable price!

12 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Maria, Thanks for the great review! Sounds like they did a great job, especially with an old house. It's always a bonus when you get quality work at a good price. Glad you're happy with your new windows, Many thanks! 👍

Rated 5 out of 5 stars

If I could give more then 5 stars I…

If I could give more then 5 stars I would!
Exceptional and amazing service from the get go. Communication between Bryony to having the windows fitted by Jack, Paul & Taz.
All of them very polite, friendly and did an amazing job fitting the windows and door.

I got a text message for all 3 days to let me know when they were heading my way and they were here ready to go for 8:30am. Not one day were they ever late.

I would highly recommend G M Windows & Doors!

10 September 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Nikka, thanks you for your lovely review! It's been a pleasure to work on this job, and we will make sure to pass the kind words back to the team! Many thanks😊👍

Rated 5 out of 5 stars

Fantastic experience with GM Windows & Doors

Seamless experience for getting our new front door fitted. Bryony was fantastic in communicating and liaising before ordering, and was so patient whilst I was so indecisive. She offered great expert advice and knew her stuff.
The lads who came to fit the door, Matt and Jack I believe, were so professional, polite and tidy.
George was also great to deal with who came out to measure the doorway again after I worried about what our finished floor height would be, I felt reassured before placing the order rather than a nuisance, and sure enough it’s perfect.
The door is of fantastic quality, much better than I imagined and I’m so happy with the finished result. The next time I need new windows or doors I’ll be ringing these guys first.

26 August 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Beth, thank you for your lovely review! I'll make sure to pass this back to the team. We are buzzing that your happy with your door, and we think it looks great too! Thank you for keeping us in mind for next time! 😊👍

Rated 5 out of 5 stars

Great company to deal with

Great company to deal with. A large range of products. Staff friendly and helpful. Great standard of workmanship. Tidy and efficient. Many thanks for my beautiful new porch

20 August 2025
Unprompted review
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Reply from G M Windows & Doors Ltd

Hey Lynn, thank you for a great review! We looked the final look too, many thanks 😊

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