Once & Done Waterproofing Solutions LLC

About

Once & Done Waterproofing Solutions, based in Martinsburg, West Virginia, serves homeowners throughout West Virginia, Maryland, Pennsylvania, and New Jersey with basement and crawlspace waterproofing. The company has over 40 years of combined experience sealing fieldstone, concrete block, and cement spaces prone to dampness or flooding. The team focuses on converting damp or wet basements into usable living space while addressing the structural and health risks that excess moisture creates. Even small amounts of water can cause foundation cracks, wall bowing, and dangerous mold growth—problems Once & Done targets with sump pump installation and interior waterproofing systems. The company handles both residential and commercial waterproofing projects. Once & Done backs interior waterproofing work with a lifetime warranty on products. According to customer reviews across Home Advisor and Thumbtack, homeowners appreciate the company's straightforward approach: technicians explain options without pushing unnecessary add-ons, show up on schedule, complete work at agreed prices, and maintain professional communication throughout the job. Customers consistently note the politeness and knowledge of the crews and the quality of solutions provided. With a 5-star rating from 34 reviews, the business operates on a simple commitment to keeping families safe by preventing the water damage and mold that threaten basements and crawlspaces. Homeowners can reach Once & Done at (888) 589-9651.

Services