Crawl space leaks run the longest undetected, because almost nobody goes down there until the floor above feels soft or a musty smell shows up in the room overhead. In Madison, SD basements and crawl spaces, the usual causes are an unsupported pipe run, freeze exposure, or a corroded fitting that finally gave out.
Shut off the main if you hear running water and can't identify a fixture drawing it, and avoid crawling through standing water near electrical connections. Stop and call if the floor above feels soft, a musty smell persists, or a water bill jumps with no obvious explanation.
An independent local plumber can trace, repair, and reroute lines in tight crawl space and basement access, and can document the work for Madison, SD homeowners who would rather not climb in and check it themselves. Call (844) 898-0295 to get a crawl space or basement leak traced.
