08/29/2026
π΄ This is the one maintenance item with zero excuses.
Illinois law requires working smoke detectors on every level.
Carbon monoxide detectors are required in units with gas appliances or attached garages.
Non-compliance isn't just a liability β it's a criminal exposure.
Your checklist:
β
Test every detector at every tenant turnover
β
Replace batteries annually β don't wait for the low-battery chirp
β
Replace the entire unit every 7-10 years (check the manufacture date)
β
Document the test with date and initials β keep it in your file
This takes 15 minutes per unit.
The alternative is unthinkable.
β Do you test detectors yourself at turnover or do you rely on tenants to report issues?
π NILA helps landlords stay compliant and protected: mynila.org
https://mynila.org