Which Door & Window Company Should You Choose in Frederick, MD?

Glass & Mirror Services provides high-quality residential and commercial glass solutions in Frederick, MD, specializing in custom mirrors, shower enclosures, storefronts, and interior glass installations. Since 1980, we've delivered reliable craftsmanship and personalized service, offering free estimates and warranties. Our expertise spans both small repairs and large-scale projects for homes and businesses.

Colonial Sash & Door supplies custom building products including windows, doors, and millwork to Frederick, Maryland, and surrounding regions. Established in 1989, we serve homeowners and builders with quality materials and competitive pricing. Our expertise spans custom solutions for residential and commercial projects across multiple states.

Glass Concepts is a full-service commercial glass and glazing contractor serving Maryland, Virginia, and Pennsylvania. We specialize in aluminum storefronts, curtainwalls, architectural windows, and interior glass systems since 1988. Our team delivers end-to-end solutions from budgeting to installation, prioritizing timely completion and client collaboration.

Decorative Films is a leading manufacturer of decorative and functional window films for residential and commercial applications. Established in 1979, we specialize in privacy, solar control, and design-enhancing films with a global distribution network. Our products combine aesthetic appeal with practical benefits like UV protection and energy efficiency.

Custom Glass Services provides expert commercial glass installation and architectural glazing solutions. Serving MD, DC, VA, and PA since 1994, we deliver complex projects with precision and reliability. Our award-winning team combines decades of experience with state-of-the-art equipment to meet diverse construction needs.