George J. Keller & Sons
Professional Contractor & Home Improvement Specialist
About George J. Keller & Sons
George J. Keller & Sons, LLC is a second generation family-owned home improvement company specializing in Roofing, Siding, Windows and Solar. We started as a “Mom & Pop” roofing company in 1980 working out of our Dad’s house in Flanders, with one truck and one roofing crew. We’re now one of the area’s most well respected small businesses with ten crews being directed out of our facility on Laurel Drive in Flanders. We’re not going anywhere, anytime soon! Family business While it all began with the patriarch and namesake, George, operating on his own, as the family grew through the decades, so did the business. As George enjoys his retirement, the youngest son Dan is now at the helm and works along side daily with his siblings, wife, and even his daughters! We’re truly a locally-owned, family-run business now spanning multiple generations.
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Verified Licenses & Certifications
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License #13VH00221900
VerifiedNew Jersey
#HIC License
Aug 02, 2025
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Customer Reviews & Ratings
See what our customers are saying about George J. Keller & Sons
Tina Kimble
Had new siding installed and the work was top notch. Dan and Jared were on site to answer every question and solve any problems. But, for such a large job, hardly any iproblems came up because Jesus and his crew are skilled and efficient. So happy with the work they did!
Barbara Williams
Attempted to get roof leak repaired. After 2 tries at repair was advised that I should call if leak continued. I rec'd no reply after 2 calls to them. Another roofer with the company came to evaluate the roof since they replaced the roof 10 yrs prior. I was told he would check the contract and would be in contact with me. Never rec'd a call. I contacted the office in attempt to reach him. No reply. Customer service has declined significantly. Company has since contacted me and advised that they will rectify issues in a few weeks.
Joseph Fleming
These guys were excellent. Dan Kozlowsky from Keller and his crew took the time to bring my 1980's roof up to modern standards. Shingles, soffit vents, ridge vents, new skylight, eave trim, fascia trim, gutters, downspouts are all new. Soffits and trim were all custom ordered colors that matched the painted house colors. Follow-up and cleanup were terrific.
Scott Goldman
So happy with our new roof! Caesar ran the project and was extremely helpful, walked us through the process and kept us updated. He even returned to make sure we were happy with the results. Very professional from start to finish; a pleasure to deal with - I highly recommend George Keller & Sons
Kelly Cramer
Everyone we worked with was absolutely phenomenal, I’m so grateful we went with George J Keller & Sons! Truly every staff member we worked with helped answer our questions and the crew who helped with our siding was professional, honest, transparent, friendly and knowledgeable. Big shout out to Chris who was extremely helpful during our initial consultations, and Justin and Mike who helped oversee our siding renovation from day one until completion. We got multiple estimates for this job, but I’m beyond happy we chose George J Keller and Sons because they truly made one of our biggest homeowner projects seamless and they executed without any hiccups or issues. Very grateful for everyone on the team and thanks to the workers who worked tirelessly to get our job done. We’re beyond thrilled and would highly recommend. Look forward to working with you all again in the future when we need a new roof :)