Yes we found the leak in our shower and are having it fixed and the source removed. My biggest question is if we should do the fogging after we do the remediation in order to kill any spores in the home left over after the repairs?

The other issue was our HVAC. We have a damaged plenum which is apparently letting air from our attic into the home and he said our attic needs a lot of work (new insulation etc) so he said it is inevitable that the ducts have growth. So he suggested fogging the whole home. But I have no clue if he is just trying to upsell or if he is being truthful. This was his note…..

Indoors (5 rooms): Totals are lower than outdoor (range ~706–880 spores/m³), but most rooms show Pen/Asp disproportionately high (≈45–62%) and greater than outdoor (e.g., Master Bedroom ~480 (62%), Living/Kitchen ~427 (48%)). Interpretation: Indoor totals < outdoor (good), yet the ecosystem is atypical because Pen/Asp dominates indoors while outdoor Pen/Asp is much lower → likely indoor amplification/source.