Drainage improvements beneath a home to collect and move standing or recurring water away from the crawl space.
Crawl-space problems often overlap with drainage, humidity, insulation, and wood or support conditions, so it helps to separate the moisture source from the damage it may have caused. Ask the provider what the proposed scope addresses directly and whether drainage, dehumidification, insulation, structural repair, or another follow-up service may be separate. Before contacting a provider, note where water enters or collects, what happens during rain, how long it remains, and any existing drain or sump system.