FastDry Restoration water damage

Assuming that there are no pre-existing conditions, the faster acting types of mold, such as Penicillium and Aspergillus, spores can begin to colonize withing 48-72 hours. On the other hand, some of the slower acting molds can take up to 7 to 10 days. It really just depends, so the sooner you have your water damage problem taken care of the better.