Endorsed by Which?

G M Windows & Doors Ltd

5.0

18 Reviews

Opening Hours
Today -
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

About

George Martindale started this Bolton-based double-glazing windows and door replacement business in March 2018. Delivering outstanding work and with a wealth of knowledge to support it. George started in the industry working for his father’s window fitting company, Martindale’s. Having gained immense insights into the best techniques and quality of materials and establishing a solid network of contacts within the trade resulted in George setting up his own business venture.

What started as just George, a van, and word of mouth, is now a business with great reviews. The first apprentice is now one of the top fitters in the region, and the business is continuously expanding. G M Windows & Doors Ltd can install new doors, windows and repair and replace existing ones.

The business has an extensive range of products;
composite doors,
window replacement,
casement windows,
and double glazing,
to find the perfect solution for your home.

Please call to discuss your home improvement needs.

What we do

  • Glaziers

    • Aluminium Windows
    • Double glazed units
    • Double glazing installation
    • Double glazing repair
    • Glass boarding up and replacement
    • Replacement window services and repairs
    • Sash windows
    • Triple Glazing
    • UPVC Windows
    • Window consultants
  • Doors

    • Bi-fold doors
    • Composite doors
    • Door repairs
    • French doors
    • Front door
    • Patio doors
    • UPVC doors
    • ​Aluminium doors
  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
    • Double glazing repairs

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

5.0
18 reviews
Customer Service
4.9
Quality
5.0
Value
5.0
Sort by
New Front Door
Customer Service
Quality
Value
George fitted a new door for us. He is friendly and professional with very high standards. Kept us up to date throughout. We hope to use his services in the future and would highly recommend his work.
Customer in Greater Manchester Posted on 04/07/2021 , work completed 02/07/2021
Excellent products, people and company
Customer Service
Quality
Value
G M fitted two windows and a door for us. We were impressed with the thoroughness and professionalism of George in providing a detailed, and very reasonably priced quote. The two fitters, Ryan and Jack, were punctual, hard working and extremely polite and pleasant. We are delighted with the quality of the fittings also, so much so that we have already ordered another 3 windows for the upstairs rooms. We would not hesitate to recommend G M to any friends or family.
Customer in Blackburn with Darwen Posted on 16/04/2021 , work completed 15/04/2021
Endorsement Reference
Customer Service
Quality
Value
We have used GM Windows & Doors on two occasions. To replace the windows and doors at the front and rear across both occasions. George and his team have been faultless throughout. The windows and materials they install are high quality. Furthermore they provide a professional service and have a fantastic attention to detail. As a result of their workmanship I?ve recommended GM Windows & Doors to a couple of friends who are also delighted with the outcome.
Which? Trusted Traders Consumer Posted on 02/03/2021 , work completed 12/12/2020
Endorsement Reference
Customer Service
Quality
Value
GM Windows and Doors replaced the front door of my rental property. Very efficient and professional service. Highly recommend to all.
Which? Trusted Traders Consumer Posted on 02/03/2021 , work completed 05/02/2021
Endorsement Reference
Customer Service
Quality
Value
George and his team replaced our double glazed windows. He did a thorough job in carefully measuring what we needed and his quote for the work was very reasonable. The work he carried out was to a very high standard and at the end of each day the house was left clean and tidy. He constantly made sure that every window was completely finished to our and his satisfaction. I would have no hesitation in recommending Mr. Martindale.
Which? Trusted Traders Consumer Posted on 02/03/2021 , work completed 01/10/2020
Endorsement Reference
Customer Service
Quality
Value
New kitchen door and garage door, Georgian bar doors and side panels fitted in conservatory .We would highly recommend this trader,very professional andi high quality products at very competitive prices George and his team are very polite,helpful and left everywhere clean and tidy on completion.we would not hesitate to use them in future
Which? Trusted Traders Consumer Posted on 02/03/2021 , work completed 20/01/2021
Endorsement Reference
Customer Service
Quality
Value
New Bi-Fold doors fitted to dining room extension. Top quality product fitted to very high standard by GM Windows. Would recommend to anyone.
Which? Trusted Traders Consumer Posted on 02/03/2021 , work completed 11/02/2021
Endorsement Reference
Customer Service
Quality
Value
I had a new front door fitted, George was excellent in his communication both informative and answering any questions. His work was carried out to a high standard. Very professional and would highly recommend
Which? Trusted Traders Consumer Posted on 18/02/2021 , work completed 09/02/2021