The Revenue Leak You're Not Measuring
An OOS room is 100% ADR lost. A maintenance room is 60% ADR lost. Most hotel GMs track RevPAR but not what maintenance downtime costs them, specifically per room, per day.
Hotel GMs track RevPAR obsessively. They know the occupancy rate, the average daily rate, and the revenue per available room for every week of the last year. They do not know what their maintenance operation is costing them in lost revenue. Most of them have never calculated it.
The math is simple and it is brutal
An out-of-service room costs you 100% of that room's ADR for every night it is unavailable. A room blocked for maintenance costs you between 60% and 100% of ADR, depending on whether the hotel is compressed. A room delivered to housekeeping late because maintenance ran over costs you a same-day sell opportunity and a potential guest complaint.
| Condition | ADR impact | At 200-room hotel (ADR $180) |
|---|---|---|
| Full OOS (ceiling leak, structural) | 100% | $180 / night / room |
| Maintenance hold (scheduled PM) | 60–90% | $108–$162 / night / room |
| Late release to housekeeping | 20–40% | $36–$72 / night / room |
| Guest complaint → room move | 0% revenue + cost | $50–$200 service recovery |
What this looks like at scale
A 200-room hotel with an ADR of $180 and a typical maintenance profile averages 3–5 OOS rooms per night and 8–12 maintenance holds per month. Run the numbers:
- 4 OOS rooms × $180 ADR × 30 nights = $21,600 / month in direct OOS revenue lost
- 10 maintenance holds × 2 nights average × $130 (70% ADR) = $2,600 / month
- 15 late releases × $55 average impact = $825 / month
That is $25,000 per month ($300,000 per year) in maintenance-attributable revenue drag at a single property.
Why most hotels do not track this
Because the data lives in two separate systems. OOS and maintenance hold data lives in the PMS. Work order data lives in the CMMS (or on paper, or in WhatsApp). Nobody has joined them. Finance sees the RevPAR dip. Engineering sees the work order queue. Nobody sees the connection.
What high-performing maintenance operations do differently
The best engineering teams track three things that most do not: (1) time-to-release for every maintenance hold, measured in hours; (2) unplanned OOS versus planned maintenance hold; (3) which asset categories generate the most OOS nights.
The question is not "did we fix it?" The question is "how many room-nights did this failure cost us, and was that cost avoidable?"
The business case for a CMMS is simpler than you think
If a modern CMMS costs $1,200/month for a 200-room property and it reduces your maintenance-attributable OOS by 30%, that is $7,500/month in recovered revenue against $1,200 in software cost. The ROI conversation is not about the software. It is about what the software recovers.