I recently put in an offer on a house that is on sale through a bank foreclosure. The house is fairly old, built in the 1920?s, with plaster walls. After the bank accepted the offer I scheduled a home inspection and the inspector pointed out an issue that caused me some concern. Near the front door of the house is a closet with an outside facing wall. On this outside facing wall is actually a window (bit odd for a closet) that looks like it is no longer properly sealed around the exterior of the window frame, possible letting some moisture in. There are some cracks in the plaster near the edge of the frame, where you can see into the wall a bit. When you enter the closet there is definitely a musty smell. The inspector said that closets with an exterior wall are at a greater risk for mildew/mold due to the lack of ventilation and temperature differences between the main house. Is the musty smell worth scheduling a mold inspection? The company I called said it would be around $700 - $1000 for an inspection. I know mold is a pretty serious issue, but does the musty smell warrant the cost of a full mold inspection? I probably would knock down those closet walls to open up the entrance of the house and seal the window if I were to purchase the house. Should I be taking this issue more seriously?