Replacement Windows

Shopping for replacement windows can be frustrating, painful, confusing, and you insert the adjective…

There are thousands of window replacement manufacturers to choose from and a number of different materials from which each window can be made (fiberglass, wood, vinyl, composite, and aluminum to name a few). We’ve been installing windows for 35 years and it still gets overwhelming to even us at times. As the largest home remodeler in the Delaware Valley, we have the buying power to choose just about any window we want to sell.

After years of research, we found one window that truly stands out from the rest, the Infinity by Marvin replacement window. We looked at 5 key categories to when deciding which window to offer our customers.

  1. Stability of the Manufacturer: Our installations and products come with lifetime warranties. What is a warranty worth if the company that made the product is out of business? Nothing! Marvin is a family owned business that has been making windows for over 100 years without ever laying off an employee. They are financially stable and share the same core values that we do.
  2. Quality: Marvin is well known in the remodeling community as a company that is obsessed with quality. They put their products through rigorous testing to insure they can stand up to mother nature’s toughest punches and still look and perform perfectly,
  3. Low Maintenance: Our customers want a product that they don’t have to maintain after installation. The Infinity by Marvin needs little to no maintenance (other than cleaning them every once and a while) for as long as you live in your home.
  4. Energy Efficiency: The glass in our windows can save you hundreds of dollars a year in heating and cooling costs and still and have an energy efficiency rating that ranks with the best windows out there.
  5. Beauty: While there are a lot of windows that do pretty well in numbers 2 – 4 above, many of them just look aesthetically bad. Marvin has always designed their windows to look like traditional, beautiful, wood windows but without the problems of wood. We haven’t found a window that can even come close in this category.

Take a look at our window in the comfort of your own home. Compare it to any other window out there! I’m confident you’ll agree this one is the best. P.J. Fitzpatrick and Marvin together provide a superior window along with a lifetime warranty.

We make choosing windows easy:

  • We can send representatives to your home
  • 2 convenient showroom locations
  • ENERGY STAR approved: save money
  • Green options: windows made from recycled materials


At P.J. Fitzpatrick, our team of experts can repair your windows right the first time so you won’t have to worry about the same problem again. In many cases, you'll have a crew sent out to your home within 24 hours of your call.

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Photo Gallery

With windows from P.J. Fitzpatrick, you can not only update the look of your home, but prevent it from losing heat in the winter and air conditioning in the summer. Check out our window photo gallery to see how we can help you.

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Installation Process

Our experts are trained to install windows in a timely manner and with respect for your personal property. We make sure to use drop cloths and wear shoe coverings to protect each part of your home and clean up when we’re done.

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Windows from P.J. Fitzpatrick are made of only the highest quality wood, vinyl, or fiberglass and are designed to insulate your home. We offer a wide variety of styles so you can update the look of your home easily and affordably.

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We can install, replace, or repair window screens that have been damaged by wind or other means. With our selection of window screens, our professionals can have the job done quickly and thoroughly.

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Our Windows Service Areas

  • CertainTeed
  • Great Lakes Window
  • Marvin Windows & Doors
  • Andersen Windows