Illinois Landlords must install Smoke Detectors & Carbon Monoxide Detectors in rental units & provide Tenants with information about testing & maintaining detectors.





Illinois Smoke & Carbon Monoxide Detector Requirements


Illinois has several requirements for the installation and maintenance of Smoke Detectors & Carbon Monoxide Detectors in rental units. Specifically:


  • As of January 1, 2023, any new smoke alarms installed in single or multi-family homes must have a 10-year sealed battery. Updated Smoke Alarm Law.
  • Smoke Detectors must be installed within 15 feet of where Tenants sleep and there must be a Smoke Detector on every story of the rental unit. Illinois Smoke Detector Act.
  • Carbon Monoxide Detectors must be installed within 15 feet of where Tenants sleep and there must be a Carbon Monoxide Detector on every story of the rental unit. Illinois Carbon Monoxide Act Alarm Detector Act.
  • It is the Tenant’s responsibility to test and maintain Smoke and Carbon Monoxide Detectors while in the rental unit.
  • Landlords must provide Tenants with information about testing and maintaining Smoke and Carbon Monoxide Detectors.


Use our Illinois Smoke Detector & Carbon Monoxide Detector Agreement as an addendum to your Illinois Lease Agreement to comply with all state requirements.