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Founded in 2000, Complete Basement Systems is the go-to contractor in all of Long Island for basement waterproofing, repair and remodeling. Our services also include spray foam joist insulation, sump pump -- and we work wonders with wet crawl spaces, too! Regardless of what you’d like done with your basement, we can help. We are affiliated with Basement Systems®, an international network of over 300 basement contractors. As a Basement Systems dealer, we have access to the latest waterproofing techniques and basement remodeling products – many of which are patented and proprietary.

Complete Basement Systems Questions

The Complete Basement Systems annual revenue was $2 million in 2026.

2 people are employed at Complete Basement Systems.

Complete Basement Systems is based in Massapequa, New York.

The NAICS codes for Complete Basement Systems are [238, 23, 238990, 23899, 2389].

The SIC codes for Complete Basement Systems are [17, 179].

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