Discover going to do it, then you better call a professional cleanup and restoration team right away. Who can get there the easiest? This is an emergency situation if you find water damage cleanup being done. You don't want the harm to spread, so you don't want black mold to cultivate. You can end up with a lot more costly repairs to deal with the longer you wait.
Whether you call the restoration team or otherwise not, there are at least several things you can do yourself. You might like to take more of the work with if you have the knowledge as well as the right equipment, however you are going to want the pros on the job as well. These are ones that have the professional equipment to try for mold and get the cleanup carried out in a timely manner.
If you do not feel comfortable doing something, don't. You never want to compromise your safety. If you are okay with it, reach cleaning up the water immediately and let the professionals look at the damage and test for mold. They will tell you what repairs need to be made.