Great Lakes Window

Great Lakes Window

When it comes to vinyl windows, P.J. Fitzpatrick trusts the experts at Great Lakes Window to provide some of the best materials in the industry. Great Lakes Window was begun in 1981 after a research project concluded that most European replacement windows were made from polyvinylchloride (PVC), but most American windows weren’t. A team of just five people took advantage of this information and decided to create a vinyl replacement window company.

Today, we offer PVC windows with low conductivity and high energy efficiency that are perfect for any home. We can help you pick out the perfect windows that fit your lifestyle and your budget. And at P.J. Fitzpatrick, we offer a 100% Satisfaction Guarantee, so we’re sure you’ll love our Great Lakes replacement windows. If you don’t, simply let us know and we’ll do what we can to make it right.

Quality and Efficiency

Great Lakes Window

With quality vinyl windows, you won’t have to worry about frames or corners separating over time. Great Lakes Window uses an innovative manufacturing process called pinch fusion welding that creates a solid one-piece window. This means that your windows will look great for years to come without needing to repair or maintain them. In addition, these vinyl windows come in a variety of fade-resistant colors, so you won’t have to paint or stain them to match your home.

Because Great Lakes windows meet the Energy Star’s energy efficient guidelines, they can also help you save on your heating and cooling bills. These windows provide a quality insulated seal that helps keep your home warm in the winter and cool in the summer. Plus, with various solid brass hardware and decorative glass options, you can find vinyl windows that match any style home.

If you’re interested in vinyl windows from Great Lakes Window, contact the experts at P.J. Fitzpatrick today. We’ll help you get started.

P.J. Fitzpatrick, Inc.

21 Industrial Blvd
New Castle, DE 19720


  • NJ Lic. #13VH10727200
  • DE Lic. #2009603070
  • PA Lic. #PA011323
  • MD Lic. #105494

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