Great Lakes Window

Great Lakes Window Logo

Great Lakes Window is one of America’s most trusted brands for vinyl replacement windows. With nearly 40 years experience in the industry, Great Lakes Window creates custom-made, energy-saving windows that meet quality and performance standards set by organizations such as ENERGY STAR® and the National Fenestration Ratings Council (NFRC).

Exclusive Regional Distributor

Great Lakes Window has manufactured over 10 million windows, using state-of-the-art technology and a proprietary vinyl formulation. They are available only through select dealers and distributors, including Stockmohr, Western New York’s only regional distributor.

Having Stockmohr install Great Lakes Window products means you’ll be able to enjoy year-round comfort. These windows are designed to withstand heat and cold, and meet or exceed the current ENERGY STAR requirements for all 50 states. In the Northern Zone, especially important for New York residents, Great Lakes Window products can exceed requirements by up to 48 percent with select glass packages.

Great Lakes Window offers a variety of window products for your home. Contact Stockmohr to learn more about the Great Lakes Window line, and why it's a great choice for your window replacement needs.


Great Lakes Eco Smart Windows

Great Lakes Comfort Smart Windows

Great Lakes Harbor Light Windows


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Key Features

  • Handcrafted, high performing
  • Customizable (styles, colors, grilles, hardware, glass)
  • Optional SmartCore insulation (almost twice the insulating properties of typical fiberglass)
  • Insulated interior glazing tower (creates insulating pocket for enhanced thermal performance)
  • Optional RigidCore insulation (delivers unsurpassed strength and durability at the meeting rail of double hung and sliding windows)


Buffalo Great Lakes Window
Great Lakes Window in Buffalo