
Serving Central Islip, NY and surrounding areas
Approved
In business since 1981
Free estimates
Warranties offered
"From beginning to end excellent work and extremely satisfied"





+180


Serving Central Islip, NY and surrounding areas
Approved
In business since 1981
Free estimates
Warranties offered
"From beginning to end excellent work and extremely satisfied"





+180
Serving Central Islip, NY and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"James and Mike also did the foundation and patio work as well as walls and steps. They are simply the most professional yet friendly people to to do business with. Their attention to detail and quality of execution is simply amazing. Highly recommended!!!"





+22
Serving Central Islip, NY and surrounding areas
Approved
Super Service Award Winner
In business since 1984
Free estimates
Customers say: Terrific value
"Jack and his crew were thorough, professional and courteous throughout the entire waterproofing project for the basement, which included outside drainage work to better direct water away from the house, and the foundation repairs that were needed. He provided a detailed estimate and explained all facets of the project. Jack also provided additional recommendations for repairing the house gutters and downspouts. The home was built in the 1940's and the basement would flood following rain. Since the repairs, three rain storms within five weeks, each with over 3 inches of rain, have occurred and the basement waterproofing project was immediately tested. It has remained dry!"





Serving Central Islip, NY and surrounding areas
Approved
In business since 1978
Free estimates
Warranties offered
"The entire process was great. Every step of the way they checked to ensure it was the way we wanted it. The end result was great like having a new yard. Would not hesitate to have them do more work ."

Serving Central Islip, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Slade and the team were amazing to work with. My job was a large project consisting of contouring an acre of land with slopes. They worked well with me as I threw them curveballs. Overall, they did an amazing job. I plan to have them back when other phases of work need their services."





+88

Serving Central Islip, NY and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"I had a crack in my foundation that needed to get repaired quickly. They did a fantastic job and were a pleasure to deal with. I recommend them for anyone that’s in the same position that I was!"



Serving Central Islip, NY and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Company was prompt in response very reasonable and effectuate with the repair the same day. Thanks much exclamation. Thanks, Eddie."





+172

Serving Central Islip, NY and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"This was the second time I hired zavza seal. This time I needed help with attic insulation for my parents house. Starting with setting up the free appointment, ending with the crew and quality of the work - they deliver a great experience and I highly recommend them for anything waterproofing, insulation, concrete and foundation fixes. If you are looking for a contractor and donâ t know who is trustworthy and professional, go with Zavzaseal, you ll be in a very good hands."





Serving Central Islip, NY and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Sal and his group were wonderful. They came on time, they did a beautiful job, and even came back the next day after being paid in full for the job to fix something for me. I would highly recommend them"





+104

Serving Central Islip, NY and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Excellent communication- resurfaced my patio and added a new walkway - professional and cleaned up after"





+67
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