1. Observe and protect
Photograph what you see, stop the damage from spreading if it's safe to do so, and jot down roughly when it started.
2. Evaluate the house and site
In DuPage County, the walkthrough weighs the water category, how long the space sat wet, whether wiring got involved, and how porous the affected materials are before anyone plans a response.
3. Define a written scope
Nail down what gets protected during the work, which materials are going in, who's pulling permits, how testing and cleanup get handled, and what triggers a change order.
4. Compare providers
For Naperville-area bids, verify credentials first, then compare the reasoning and boundaries behind each proposal, not just the bottom-line total.
5. Inspect closeout
Walk through the final moisture readings, the paperwork, what's covered under warranty, and any upkeep that's now on you.