First, turn off the main water supply immediately. Then focus on three key areas: improve grading around your home so water slopes away, install proper skirting to prevent water intrusion, and ensure your gutters and downspouts direct water at least 6 feet from the foundation. For existing leaks, you'll need to locate and repair the source before addressing drainage issues.

Water under mobile homes typically comes from four sources: plumbing leaks (pipes, fixtures, water heater), poor site drainage causing surface water to pool, damaged or missing skirting allowing rain intrusion, or foundation issues causing groundwater problems. In mobile home parks, check with maintenance first as they're responsible for supply lines up to your home's connection point.

Repair costs vary widely: Simple fixture repairs cost $50-150, pipe replacements run $200-500, water heater issues range $300-1,500, and major structural damage can cost $2,000-10,000+. DIY repairs using our recommended tools can save 60-80% on labor costs. Emergency detection tools ($25-200) often pay for themselves by catching leaks early.

Yes! Mobile homes are actually easier for DIY plumbing because pipes are accessible from underneath. You can handle fixture leaks, pipe joint tightening, and hose replacements. However, call professionals for: gas line issues, electrical problems near water, major pipe replacements, or when you're unsure about safety. Always turn off water before starting any repair.

Start by fixing the leak source, then remove standing water with pumps or wet vacuums. Install temporary fans for air circulation and use dehumidifiers to extract moisture from the air. Remove soaked insulation immediately to prevent mold. Monitor moisture levels with a moisture meter and maintain proper ventilation until completely dry (usually 3-7 days depending on severity).

Watch for: unexplained increases in water bills, wet spots or unusually green grass in your yard, low water pressure throughout the home, sounds of running water when all fixtures are off, and puddles forming around your mobile home after dry weather. Use the water meter test: turn off all water usage and check if the meter still moves, indicating a hidden leak.

Prevention saves thousands in repairs: Inspect plumbing twice yearly, especially before winter. Install leak detectors near water heater, under sinks, and in crawl space. Insulate pipes properly to prevent freezing. Replace washing machine hoses every 5 years. Maintain proper grading and gutters. Address small leaks immediately before they become major problems.

Call professionals for: electrical hazards near water, gas line issues, major structural damage, mold remediation, insurance claims requiring documentation, or when repairs exceed your skill level. The EPA provides guidelines for mold assessment and remediation in homes. Also call for emergency situations like major flooding, multiple burst pipes, or when you can't locate the main water shutoff. Professional diagnosis often saves money vs. trial-and-error repairs.