Maintenance checks should be performed every other month, in addition to the deep cleans mentioned above. This is done to detect damage caused by environmental factors, wear-and tear, or weathering. Make sure that doors lock correctly. This will make tenants feel safe in their space. Replace smoke detector batteries if necessary so that they are available 24 hours a day. Keep your apartment smelling fresh. You should empty your trash cans regularly and replace any old air fresheners with a new scent. Dusting furniture and windowsills is a good idea as dust can quickly build up.