Small enough to care, but big enough to cope.  

GM Windows And Doors is a family-run windows and doors specialist based in Bolton, Greater Manchester, proudly serving the North West including Lancashire, Merseyside, Cheshire, and Cumbria. Founded by George Martindale in 2018, the company has grown swiftly from a one-van operation into a trusted local provider, offering an extensive range of high-quality products, such as A-rated double glazing, composite entrance and patio doors, uPVC and aluminium windows, bi-fold and lift-and-slide doors, roof lanterns, integral blinds, and fascia and soffit replacements. Whether you need a minor glass replacement or a full installation, they handle every job with precision and care.

What makes G M Windows & Doors stand out is their exceptional commitment to customer service and transparent, reliable craftsmanship. With glowing 5-star feedback across platforms, clients frequently praise the team—especially George, Matt, Leo, Joe, and others—for being professional, tidy, communicative, and true to their word. From free surveys and quotes to prompt installations and clean-ups, their attention to detail and willingness to go the extra mile ensures homeowners feel confident and satisfied every step of the way.

GM Windows and Doors provide affordable Window and Door installations, specailising in:

• A Rated Windows

• Composite Doors

• Bi-Foding And French Doors

Exclusive offer:  Free upgrade to Triple Glazing with a printed copy of the Local Coupon Booklet.