Landlord maintenance checklist
Updated August 2026
A landlord's maintenance runs on two clocks: every turnover and once a year. Every turnover and annually, test the smoke and CO alarms (working alarms are a legal requirement in essentially every state), service the HVAC, check the water heater, clear the dryer vent, and inspect for leaks, then document the unit's condition with dated photos. Preventive upkeep and the required safety devices are not just good practice, they cap your liability and cut the 2 a.m. emergency calls. If you also do short stays, layer in the Airbnb turnover checklist.
| Task | Interval | Effort |
|---|---|---|
| Test and date every smoke and CO alarm; replace as needed | Each turnover | 20 min · DIY |
| Change HVAC filters and confirm the system runs | Each turnover | 15 min · DIY |
| Photograph and log the unit condition, room by room | Each turnover | 45 min · DIY |
| Check under sinks, around toilets, and the water heater | Each turnover | 20 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Book an HVAC tune-up | Yearly | $80–200 pro |
| Flush the water heater and check its age | Yearly | 1 hour · DIY |
| Clean the full dryer vent duct | Yearly | $100–200 pro |
| Task | Interval | Effort |
|---|---|---|
| Recaulk tubs and showers; reseal grout | Every 1–2 years | $50 DIY |
| Replace smoke alarms at 10 years, CO alarms at 5–7 | By date | $15–40 each |
| Task | Interval | Effort |
|---|---|---|
| Written record of inspections, repairs, and notices | Ongoing | Documentation |
What neglect costs
For a landlord, deferred maintenance is a liability problem, not just a repair bill. A missing or dead smoke alarm can mean fines and, after a fire, serious legal exposure, since working alarms are legally required in essentially every jurisdiction. A slow leak nobody caught at turnover becomes a $5,000–15,000 mold and subfloor job between tenants, and a clogged dryer vent is both a fire risk and a leading appliance-fire cause. The habits are cheap: an HVAC tune-up is $80–200, a vent cleaning $100–200, and both head off the emergency call that costs triple after hours.
Leave these to a pro
Hire out the annual HVAC tune-up ($80–200 per system) and the dryer-vent cleaning ($100–200), and keep a licensed plumber and electrician on call for anything behind the wall or in the panel, because doing that work yourself on a rental can void insurance and violate code. Many landlords put units on an annual service contract so tune-ups and priority repairs are scheduled, not scrambled. Your cheapest tool is documentation: dated photos and written inspection records that prove the unit was safe and maintained if a dispute or claim ever lands.
This whole checklist ships as reminders in OnOtto: every task above, on the right schedule for your home, snooze-proof.
Load this checklist as remindersFrequently asked questions
What maintenance is a landlord legally required to do?
Landlords must keep the unit habitable, which in nearly every state means working smoke and CO alarms, safe heating, hot and cold water, working plumbing and electrical, and a structure free of serious hazards. Specific alarm rules, response timelines, and inspection requirements vary by state and city, so check your local code. Beyond the legal floor, preventive upkeep is self-interest, since it limits liability and reduces the emergency repairs that eat your margin. Keep written records showing you met the standard.
What should I check between tenants?
Turnover is your best access, so use it. Test and date every smoke and CO alarm, change HVAC filters, check the water heater and under every sink for leaks, clear the dryer vent, and recaulk tubs if needed. Photograph the whole unit, room by room, to set the condition for the next lease and deposit. Fix small issues now, while the unit is empty and cheap to reach, rather than during an occupied emergency. Budget a half day and a written checklist.
How often should rental smoke and CO detectors be replaced?
Test them at every turnover and at least yearly, replace batteries annually unless they are 10-year sealed units, and replace the alarms themselves on schedule: smoke alarms every 10 years, CO alarms every 5 to 7. Put one in each bedroom, outside each sleeping area, and on every level. Keeping dated records of tests and replacements protects you legally, because a working, in-date alarm is both a life-safety device and your proof that you met the requirement.
Is preventive maintenance worth it on a rental?
Almost always. An $80–200 HVAC tune-up and a $100–200 vent cleaning are a fraction of an after-hours breakdown, which bills at premium rates and risks a habitability complaint if heat or hot water fails. Preventive upkeep also extends appliance and system life, keeps good tenants renewing, and builds the paper trail that protects you in a dispute. The landlords who get burned are the ones who wait for failure; the ones who schedule the cheap checks rarely see the expensive ones.