Basement Expert is a Seattle-area contractor specializing in foundation waterproofing, foundation crack repair, basement waterproofing, French drain installation, sump pump replacement, and water damage restoration. We serve homeowners and commercial properties across Seattle, the Eastside, and Snohomish County—including Bellevue, Everett, Shoreline, Lynnwood, Kirkland, Redmond, Edmonds, Marysville, and nearby communities. Our team is NDS-certified and Public Works trained. We use inspection-first evaluations, clear documentation, and repair plans matched to your home’s soil, drainage, and structural conditions—not one-size packages. Services include exterior and interior waterproofing, active water diversion and hydrostatic pressure relief, carbon fiber reinforcement, crawlspace drainage, and mold remediation support when moisture issues require it. Basement Expert (a division of Artbrick LLC, WA contractor license ARTBRL*812B8) delivers engineering-minded drainage and structural so