3 reviews on
David Singh
David Singh
Bought a new (but very old house) found out the basement was very leaky. Spoke to many companies but these folks were very knowledgeable and presented a plan to phase in the work to determine the source of the leak before committing to emptying my bank account. They proposed a very reasonable plan and the folks doing the work were very respectful and clean. Very happy with the process and the installation. Will have to wait for big rains next year but if it leaks again, I am more than happy to work with them again on more aggressive solutions.
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George Felice
George Felice
This company was courteous and consultative. They didn't try to oversell me and were patient with recommendations. Very professional and highly recommend them. Dan was great!
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Tony Drinkwater
Tony Drinkwater
These guys are great! It’s been two years since I had to work done, and even in the worst rain storms the crawlspace is sealed up and sump pump is doing its thing. We had a minor problem initially (external to work that was done), and within a couple of days the crew came back over, diagnose the problem, fixed it, and there was no additional charge. As a professional home inspector I know quality work and Customer Service are paramount and these guys have it all. And Jessica put up with at least six different phone calls from me and was pleasant and helpful every time!
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Why choose us

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We’re The Homeowner’s Choice

With over 20 years of satisfied customers, Complete Basement Systems has delivered quality services at the most competitive prices to homeowners on Long Island.

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Our Commitment to Quality

Our team is licensed, insured, and certified and will stop at nothing to ensure your basement or foundation issues are resolved.

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You Can Put Your Faith In Us

Complete Basement Systems is recognized as an honest and trustworthy company by the Better Business Bureau with an A+ rating.


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