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Window & Door Replacement

Big L Windows & Doors sells only the finest quality window & door replacement products in the industry to our valued customers in the greater Buffalo area. With names such as, Marvin Signature™, Marvin Elevate™, Marvin Essential™, Infinity® from Marvin, Restorations Innovative Window Systems, Therma-Tru Doors, and ProVia Storm Doors, Big L is your best choice for cutting edge window and door replacement. Our expansive product selection offers unmatched beauty, state-of-the-art technology and excellent durability. No matter what the project, we have the options and styles to fit your project.

Window & Door Replacement Products

Marvin LogoThe Marvin Signature™ Collection from Marvin® Windows and Doors has cultivated a worldwide reputation as an industry leader in product innovation, energy efficiency and progressive manufacturing techniques. With superior value, expert craftsmanship, the highest quality materials and and service, only Marvin offers unmatched design flexibility with made-to-order windows and doors — and the industry’s most extensive selection of customization options. Previously known as Marvin Windows and Doors.

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Marvin Logo

The Marvin Elevate™ Collection from Marvin® is made with Wood-Ultrex® pultruded fiberglass, a material patented nearly 20 years ago when Marvin® pioneered the fiberglass windows and door category. Marvin Elevate has led the category ever since with a commitment to a product that is tough, smart, long lasting, and worry-free. Previously known as Integrity Wood-Ultrex®.

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Marvin LogoThe Marvin Essential™ Collection from Marvin® has brought together an all inclusive offer for fiberglass windows and doors. Marvin Essential unifies design, quality and performance with their strong and durable fiberglass interiors and exteriors. Maintenance-free and visually striking, the Marvin Essential collection makes demands on the job easy with their clean lines and styling options. Previously known as Integrity All Ultrex®.

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Restorations Innovative Window Systems

Manufacturing innovative, high-performing windows has always been a mission of Sunrise Windows, and the Restorations Innovative Window Systems line of products is an outcome of this mission. Our unique narrow-line window design emulates the look of traditional windows. Energy efficient and maintenance free, we married PVC with Fiberglass and created a material called FiberCore – an all-new way of making a window.

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Infinity from Marvin Windows and Doors

Infinity® from Marvin Windows and Doors is a line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors. Created for the homeowner who wants low-maintenance, energy efficiency and traditional beauty, all Infinity products are sold by local window replacement experts as a complete, installed package to provide you with a high-quality, hassle-free experience.

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We at Big L Windows & Doors care for the safety of you and our community. With efforts to best serve you and our customers during the COVID-19 virus, we are offering free virtual appointments. Request your virtual consultation today to discuss your window & door replacement project, and get a free quote.

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