The walk-through covers walls, the sump pump and drainage system if one is present, stored items and framing near exterior walls, and any HVAC equipment located in the basement, since a system pulling in damp basement air can spread spores to the rest of the home.
Where we find staining, a musty smell, or moisture readings that stand out, we take a sample and send it to an independent lab for analysis. The report comes back with spore counts and genus identification, compared against an outdoor baseline, and we walk you through what it means and what caused it.
We also note how the basement connects to the rest of the house. An open stairwell or a return-air grille near the basement door can pull damp basement air upstairs, which is part of why a basement problem sometimes shows up as a musty smell on the main floor. We'll point out that connection specifically if we find it, since sealing it off is often part of the fix alongside treating the mold itself.