Tenant and landlord liability for mold in rental apartments

In rental properties, the responsibility for mold remediation costs depends on the underlying cause of the issue. While improper ventilation or insufficient heating by a tenant can lead to mold growth, making the tenant liable, structural defects can also be the culprit.

Common structural causes include inadequate insulation, damaged or displaced roof tiles, or faulty windows. When mold is discovered, tenants should contact their landlord immediately. Determining liability often hinges on whether the mold resulted from tenant behavior or building maintenance failures.