Great Lakes Doors and Windows

About Great Lakes Windows and Doors

We spent decades developing the highest quality vinyl replacement windows and patio doors homeowners can ever find. We turned our attention to quality in 1981 when the founders of the Great Lakes Window brand discovered fusion-welded frames and sashes that were used in Europe. This was quickly brought to their homes in Toledo, OH.

Having completed almost 10 million vinyl replacement windows and doors, Great Lakes set its window standards higher and have met those standards. been meeting them. They continue to introduce new products, add new options and provide more support to homeowners coast to coast. This makes them a top choice for your home window replacement in Allentown, PA or the surrounding areas.

Great Lakes Window works with Bethlehem Windows LLC to get quality replacement windows for your home. Come and explore Great Lakes Window products. They offer windows and doors that celebrate your unique style. Call (610) 866-9500 or stop by for a FREE estimate. You can also request an estimate with our online form.

A Warranty You Can Trust

For as long as you live in your home, we back every window and patio door from Great Lakes Window with our limited lifetime warranty. Should you ever decide to move away, your warranty is completely transferable to the next homeowner. No questions asked.

Because our windows and patio doors are manufactured in the U.S.A. by Great Lakes Window, a Ply Gem brand, you can have absolute confidence in our products and our commitment to you and your home.

Warranty Coverage

• Window frame damage
• Sash
• Glass seal failure
• Hardware, screens and more

Replacement Windows and Patio Doors