Sold after-hours dispatch at $1.10 a door, and call volume ran 3x my model
Twelve month contract, ended it at month nine by mutual agreement. Writing it up because the failure was entirely in one assumption and it's an assumption a lot of people are making right now.
The setup: a small manager with four properties, 618 units total, no 24-hour coverage. Residents called the office line after 6pm, got voicemail, and the on-call tech got a text the next morning. They were losing residents over it and one property had a habitability complaint that went further than anyone wanted.
I built a centralized after-hours line. Two people covering 6pm to 8am plus weekends, a scripted triage tree, and a dispatch handoff to each property's on-call tech. Priced at $1.10 per door per month, so about $680 a month, against a cost model of roughly $540. Thin, and I knew it, and I took it to get a reference.
My volume assumption was 8 to 10 calls per 100 units per month, so 55 to 62 calls. Actual first full month was 194. Month three was 211.
Where the model broke, in order. Residents who'd been getting voicemail for two years had a backlog of complaints and finally had somebody to tell. That surge I expected. What I didn't expect was that it never came down, because a working phone line changes behavior permanently. Then my triage tree had no dollar authority written into it, so anything my operator classified as urgent turned into a tech callout at time and a half, and the manager started disputing the callouts. By month five we were arguing about whether a running toilet at 11pm is an emergency. Roughly 30% of the calls I dispatched were things a resident could have waited until morning on, and the manager's position was that my operators should have known that. My position was that nobody had written down the criteria, and I'd have been on the wrong side of a habitability claim if I'd guessed wrong. Response-time requirements for habitability issues vary by state and by local ordinance, which is exactly why I wasn't willing to have my $18-an-hour operator making that call.
Cost me about $14,000 over nine months against a projected small profit, plus one operator who quit.
What I'd do differently: price per call with a monthly minimum, not per door. Get a written escalation matrix signed by the manager, naming the categories that justify a callout and the ones that get logged for the morning, before the line goes live. And run a 60-day paid pilot on one property to get real volume before I quote the portfolio.