Reactive maintenance — waiting for something to break before fixing it — costs three to five times more than scheduled preventive work. For a 100-unit portfolio, that difference can reach $30,000–80,000 per year.
Reactive vs. preventive vs. predictive
Most property managers operate reactively — tenants report problems, managers dispatch vendors. Preventive maintenance improves on this with scheduled inspections and servicing (HVAC filter changes, roof inspections, appliance checks). Predictive maintenance goes further: using sensor data to catch problems before they surface as tenant complaints.
Where IoT sensors deliver the fastest ROI
- Water leak sensors. Installed under sinks, near water heaters, and at washing machine connections. A $30 sensor catching a slow leak before it damages flooring saves $5,000–20,000 in repairs. Payback is measured in weeks, not months.
- HVAC monitoring. Smart thermostats (Nest, Ecobee) flag unusual consumption patterns that often indicate equipment failure before breakdown. The data also helps with energy cost reporting to owners.
- Common area entry/exit sensors. Useful for HVAC scheduling and security monitoring, but lower ROI than water and HVAC for most residential portfolios.
How to start small
Install water leak sensors in your five highest-risk units — older buildings, ground floor, any unit with a plumbing history. Review alerts for three months. One prevented leak event typically justifies a full portfolio rollout on economics alone.
A free Tenant Experience Audit covers your maintenance workflow alongside your tenant-facing systems and identifies your highest-ROI operational improvements. Book your free Tenant Experience Audit →