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Energy Efficient Windows Create an Entrance You'll Be Proud to Come Home To

Energy-Efficient Windows in Bergen County

The Tri-State’s Most Trusted Window Replacement Company

Homeowners often aren’t sure when it’s time to replace their windows. At PJ Sullivan Exteriors, we know the signs to look out for. If your units are difficult to operate, drafty, warped or rotting, we recommend investing in replacement windows right away. New windows can work wonders for your home, boosting curb appeal and lowering your energy bill by double digits.

Call (201) 857-0600 or contact us online today to schedule an appointment and learn more about energy-efficient windows in Bergen County.

After more than a decade in the industry and experience with many different products, we’ve chosen to offer our clients the Marvin Signature, Marvin Elevate and Marvin Essential line of windows from esteemed window designer Marvin®. These windows are tough and long-lasting, as well as modern and beautiful. Designed for unprecedented performance and exceptional aesthetics, these windows are perfect for a luxury home exterior.

Frequently Asked Questions

Do I need to replace the entire window or can I just use a pocket insert?

If the existing window frame, sill, and surrounding structure are in excellent condition and properly sealed, a pocket insert replacement is faster and less intrusive. However, if there is rot, water damage, or significant air leakage around the frame, a full-frame replacement is necessary to maximize energy efficiency and structural integrity.

Are certain window styles more energy-efficient than others?

Generally, fixed picture windows are the most energy-efficient. Among operating windows, casement and awning windows, which seal tightly by pressing the sash against the frame when closed, tend to be more airtight than double-hung or slider windows.

How long does it typically take to install new energy-efficient windows?

For a typical home with 10 to 15 windows, professional installation usually takes one to three days. The exact duration depends on the window type, accessibility, and whether any structural modifications are required.



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Award-Winning Business

Your Project. Our Passion.

Read Our Five-Star Client Reviews
    Pete and his team did a great job on my project. They were conscientious of my budget and did their best to work within it. His crew work was very clean and they were very friendly and respectful to my family.
    “Pete and his team did a great job on my project. They were conscientious of my budget and did their best to work within it. Options were discussed and together a solution was agreed upon. His crew work was very clean and they were very friendly and respectful to my family. I have no regrets selecting PJ Sullivan Construction. I would strongly recommend them.”
    - Alex M.
    Pete is a pleasure to work with, and all of his work, and the work of his team, is top quality. His design suggestions are always insightful.
    “I hired Pete Sullivan more than three years ago to help replace a small section of siding on my suburban house in New Jersey. Since then, he has not only replaced all the siding and roofing on my house, but completely renovated the entire interior, a multiyear job that included moving many walls, installing new tiles for the entire first floor, completely renovating the kitchen, and building a new gas fireplace and a custom cabinet for a TV lift. He most recently finished renovating a second-floor bathroom. Pete is a pleasure to work with, and all of his work, and the work of his team, is top quality. His design suggestions are always insightful. Our next project is to install updated heated and cooling systems, as well as a solar collector.”
    - Jason F.
    Peter was very helpful with deciding what products we used and what color schemes would look best for our project.
    “I would definitely use Peter and his company again for any future projects.”
    - Sherappa S.
    If you want quality and professionalism, look no further!
    - Gabor V.

Schedule a Consultation

Call (201) 857-0600 today or fill out the form below.

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Why Choose Us?

Experience Exceptional Service
  • Industry Recognition

    We've been acknowledged for excellence by leaders in the field, nationally ranked for exterior replacement, and rated highly by satisfied clients.

  • Personal Attention

    Each client receives one-on-one attention through the entire process. Our vendors are hand-picked and the best in the business.

  • Your Project is Our Project

    We maintain a consistently high level of professional care and responsibility in each project, and guarantee all of our work to be of exceptional quality.

  • Unparalleled Style

    Our style is as unique as our clients are. With each new client, your luxury dreams become reality. You can expect a timeless style that will outlast today’s trends.