George Martindale started G M Windows & Doors Ltd, the Bolton-based double-glazing windows and door replacement business, in March 2018. G M Windows & Doors are a professional installation company for doors and windows near you in Bolton & Manchester. We offer a wide range of services, installing all doors and windows. We have an extensive range of products, such as window replacement, double glazing and composite doors in Bolton so that you can find the perfect solution for your home. We also offer a free consultation service to ensure you make the best decision for your property. Please contact us today for more information or to book a consultation.