Many times water floods downstairs from a source upstairs. When that's the case, we have to get to the joists and the subfloor that support the floor above. We remove drywall and then use air movers that are designed to shoot air at the wet structural materials above.
When you have a water disaster, call SERVPRO of Burke-Clifton-Fairfax Station at 703-250-6300. We're available 24 hours/day, 365 days/year.