PJ Fitzpatrick

PJ Fitzpatrick

Special Offer Today! $50 Off

Each Window Installation With Purchase of 5 or more windows.

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Infinity Replacement Windows

Infinity Windows from P.J. Fitzpatrick

We have built our reputation as the home remodeler of choice in the Delaware Valley, and P.J. Fitzpatrick is proud of our 4.7 star rating from over 3,500 customers on Guild Quality Reviews. Since 1980, we have installed tens of thousands of windows for homeowners in Delaware, Pennsylvania, South Jersey, and Maryland. With more than 40 years of service, we know that customers want quality done right, and every Infinity from Marvin window we sell is backed by our famous lifetime workmanship promise – where our expert installation is guaranteed to match the Infinity from Marvin product warranty.

Infinity all-Ultrex fiberglass windows can instantly cut home energy costs. Lab evaluations show that the energy used to heat or cool your home can be lost through windows and doors that are not insulated properly. Homes with unsatisfactory and drafty insulation often suffer from high energy bills. The combination of poorly fitted frames, inefficient glass and porous wood or vinyl frame materials combine to waste the money you spend to keep your home safe and comfortable.

Infinity windows have the look of traditional wood, but are a longer lasting option compared to traditional wooden windows. Ultrex® fiberglass technology makes these windows energy efficient and strong, as strong as low carbon steel and 8 times stronger than vinyl. Infinity windows remain weather tight and stable even in the middle of summer, reducing the risk of air leakage thanks to their low thermal expansion rate. In addition to this variety of choices, Infinity windows can also be customized to meet the needs of any project requirement. These windows incorporate the details of traditional wood windows without the maintenance, making your investment in Infinity windows from P.J. Fitzpatrick, Inc. worth it.

Schedule your complimentary appointment today with PJ Fitzpatrick to learn more about the quality and beauty of Infinity replacement windows.

PJ Fitzpatrick
21 Industrial Rd
New Castle, DE 19720

"We attended the Spring Home Show and looked into 3 different brands of windows. We did our research and were most impressed with Infinity from Marvin. Not only because of the window itself but also because they could match the oak floors, trim, and oak cabinets. Not only did they match it but it looks incredibly beautiful. We chose to add the bow window. It was perfect. Steve was a knowledgeable and sincere salesman. The service was incredible, the installers, more incredible. The team sent up here were meticulous about every fine detail of the installation and very thoughtful about our time, home and space. And...the windows are fantastic. Good investment. Highly recommend them over other name brands."

Infinity Replacement Windows

Infinity windows are custom-built for your home with Ultrex® fiberglass to strike the perfect balance between performance and design.

Infinity Replacement Doors

Infinity doors offer durable Ultrex fiberglass performance combined with thoughtful design features that improve your view.

We'll streamline your entire
replacement project