
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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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.- Carrie C.
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Peter Sullivan is very easy to communicate with and made himself a real partner with a vested interest in a successful outcome.- Nina S.
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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.
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We were so happy with the job PJ Sullivan did for us. We couldn’t have asked for a better company to do this for us. Pete was very attentive and visited our home at least 3 times a week and that was important for us.- Jaime T.
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Amazing…these guys just care and are wonderful to work with…Highly Recommend!- Steven J.
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I love the way they treat their clients and I'm happy to work with them! Pete and his guys were fabulous.- Steven J.
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We hired Peter to renovate our basement. We found his team to be incredibly professional to work with, no detail was missed and they had excellent ideas which we followed. Our basement looks fantastic and we spend so much time in it.- Patty D.
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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.- Jason F.