The Great Lakes® Window brand is a high-performance replacement and renovation window business partner for professional home improvement dealers who sell direct to homeowners. As a leader in the industry, we’ve always been dedicated to the replacement market, and have sold more than ten million windows and doors in 48 states.

So we’re building our legacy by focusing on dealer relationships. We’re giving you everything you need to help make your business successful: Tech savvy sales tools to help you generate more leads. Updated window and door products that fit your local market needs and selling style. And a library of customizable materials. All of these resources are meant to support your customers confidence in your business.