Thanks butt wipe.
I actualy do all 3, and here is why. Even though I respect Russel’s opinion, I live in an area where very few can and will pay for a full mold inspection.
A full inspection should cost more than the home inspection. When you tell someone $350.00 and up, they say thanks and hang up.
Things are also different here, and we have basements. What can be behind walls can neither be seen or found other than smell.
I can’t tell you the number of homes I have looked at with no “visual mold growth” and after air samples were taken, it was concluded that mold was present.
I had one where a upper window was leaking into the dining room window. The only signs were water damage above the dining room window inside. no mold at all, just some wet trim. After air samples were taken, the home had significant levels, but no other indicators. This particular client had a small child that was sick from the water leak.
I only base a “limited test” on when the client wants a spot tested and only that spot. Why is this spot wet, and thats all. I also make them sign an agreement that states just this.
Air samples are to determine if an air quality problem exists, and re-enforces further inspection.