For a small, isolated patch, a DIY approach with a vinegar solution (more effective than bleach on porous materials like fabric) might work. However, since the mold is on multiple stored items and the room itself feels damp, the moisture source is the real issue. The mold on the clothes is a symptom of a larger environmental problem within that storage space, probably due to condensation or a minor, undetected leak.

Given your children’s persistent coughing, a professional assessment is strongly recommended. They can identify the exact mold species and the root cause of the dampness—whether it’s poor ventilation, a leak, or rising damp—which is critical to preventing recurrence. Remediation for a villa room of this nature is typically a multi-step process involving containment, air scrubbing, and targeted removal of affected materials, followed by verification that the space is truly clean.

The cost for an inspection and remediation plan varies significantly based on the infestation’s extent. It is best to request an on-site assessment from a company with a certified microbiologist on staff, as they can provide a scope of work and a transparent quote for the necessary procedures.