Water damage restoration cost is based on water source, affected square footage, wet materials, drying time, demolition, and repair scope. Water mitigation cost usually covers water extraction, wet material removal, drying equipment, dehumidifiers, and moisture monitoring. Water damage repair cost usually covers drywall, insulation, flooring, trim, paint, cabinets, ceilings, and finish repairs. Clean water losses are usually less expensive than sewage, flood water, or long-term hidden leaks.