Take action upon finding a water leak.
Healthy HouseTM CleanAir Tip
One of the most important things you can do if you discover a water leak or water intrusion in your home is to promptly call a water restoration company to begin drying out the space. It doesn't matter the cause - roof leak, grading issue, plumbing leak, overflowing sink, etc. You can save yourself a large future headache by getting your space dried out as quickly as possible.
As long as you stop the leak and start the drying process within about 24 hours, the likelihood of mold growth is greatly reduced. It is much less costly to have a crew professionally dry the space versus have mold safely remediated.