It depends. Ultimately, the landlord owns the property and is responsible for seeing that all clogs are resolved to prevent further damage. However, even so, the tenant may still be liable to pay for the repair. If the clog is caused by natural elements, normal wear-and-tear, or deemed as nobody’s fault, the landlord takes full responsibility. However, if the clog is due to damage from the tenant or an accidental clog, it’s on the tenant’s shoulders. For example, if a tenant accidentally clogs the drain from putting hair and other things down it, they would need to pay for the fix.