
Window Weatherproofing in NW Bergen County
Providing Comfort and Efficiency in Wycoff, Saddle River, & the Surrounding Areas
Windows are not only portals to the outside world; they also play a crucial role in maintaining the comfort and energy efficiency of your home. However, without proper weatherproofing, windows can become sources of energy loss, drafts, and moisture infiltration, leading to increased heating and cooling costs, reduced indoor comfort, and potential damage to your home's interior.
At PJ Sullivan Exteriors, we offer premium window weatherproofing services that can help homeowners in the Tri-State area maintain a comfortable indoor environment while increasing energy efficiency and prolonging the lifespan of their windows.
Contact us online or call (862) 420-9283 to schedule a consultation or book a service.
Our Window Weatherproofing Services
We offer comprehensive window weatherproofing services to help homeowners protect their homes and improve energy efficiency. Our skilled technicians will assess your windows for air leaks, drafts, and moisture infiltration and recommend customized weatherproofing solutions to address any issues and enhance the performance of your windows.

Your Project. Our Passion.
Five-Star Client Reviews
At PJ Sullivan Exteriors, we prioritize exceptional service and the highest level of quality, every time. Read some of our client reviews below.
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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.
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My wife and I are pleased to provide the following information relating to PJ Sullivan Construction. The company recently completed a substantial project at our home, in a thoroughly professional and efficient manner. The work progressed on schedule as outlined at the commencement of the project without interruption or delay. The quality of the work, as well as the conduct of the staff, was of the highest standards. The property was kept safe, clean, and secure throughout the project. We were made aware of any changes and/or offered suggestions, without any pressure to spend additional sums, and always adhered to our ultimate decision. We had been involved with construction projects on many previous occasions but this was our first time working with PJ Sullivan Construction. We were very pleasantly surprised in both, our dealings and the final results.- Adolfo L.
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Outstanding company to work with! The work was completed in a professional manner, on schedule, and with an exceptionally high level of precision and attention to detail.- Emalac
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We hired Peter to renovate our basement. Our basement looks fantastic and we spend so much time in it.- Patty D.
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- John G.
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We are very satisfied with all the planning and work done by PJ Sullivan Construction Company on our home. They exceeded our expectations and are very happy we went with them for our project. Peter, the owner, provided all of the construction and cost details, professional suggestions, and explanations that we needed to make informed decisions. The project management and workmanship were excellent! The guys who worked on our home were very skilled (and VERY nice!) and we really appreciated the constant presence of the Project Manager, Dan, from start to finish. We would definitely go back to PJ Sullivan for all our future home projects too.- Mike R.
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Both Pete and Dan Sullivan are great guys and was happy to work with them. The people working on the job were very courteous, and professional, and kept the area very clean each day. The quality of the work is outstanding. The details were well attended to. Overall a very positive experience. I would use them again and recommend them to friends.- Carrie C.
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Pete was very attentive and visited our home at least 3 times a week and that was important for us.- Jaime T.