
Foundation repair, Moisture Control, Waterproofing (All work done in one day), , and 6 more
"Excellent: Assessment of problem. Proposal to fix the problem. Cost. Applying the solution (work quality, materials, time). Value. Affability."
Cliff I. in June 2021
Waterproofing, Foundation Crack Repair, Waterproofing , and 2 more
"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!"
62225A7BA2DD43BBBF284F9F6F2D4863C150663F92DD0C6F7DF09E0E73464EB2 6. in December 2025

"Really great experience with this company. We needed emergency repairs for a leak initially and they did such a good job we had them do some additional tiling work afterwards. Would definitely hire them again."
Shayla S. in December 2023

Sheetrock, Trim, Bathrooms, Finishes, Handyman Services, All Phases of Construction , and 12 more
"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."
DBB1701231F0CD10F1F0E68BE453054D5EADF94C2D056A9A7B9C0B430A411FCD 1. in October 2025

Basement remodeling, Paving and sealing patios and driveways, Insulation - Blown in, Spray foam, Batt, Rolled reflective insulation install or upgrade , and 2 more
"The Zavza Seal team were polite, professional, proficient. They removed tile from our Church basement fellowship hall and replaced with an overlay of colored painted and speckles over our existing concrete. The work was done with care and concern to produce the best possible outcome. They worked diligently to get the work completed to our satisfaction. Excellent workmanship."
P M. in December 2022

Corona Virus purification, Indoor Air Quality Testing, Basement Waterproofing , and 1 more
"knowledgeable, friendly, polite, conscientious, clean and a big problem was fixed in a day! I highly recommend them and thank them for their service..."
Susan R. in December 2020
In business since 2022
Brick & Stone Work, Tree Removal, Fence and Decks , and 2 more
About us: "We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job."
Syosset Foundation Contractors are rated 4.8 out of 5 based on 192 reviews of 192 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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