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An anomaly detector that sits beside the existing system, reads what it already produces, and closes payroll verification. Aimed at hvac & plumbing field supervisors, built for one person, not a department.
In short: Anomaly Payroll Verifier for HVAC & plumbing is an anomaly detector aimed at hvac & plumbing field supervisors, covering payroll verification. It scores 71/100 on AltF Ideas, carried by demand (92) and held back by timing (44). Typical pricing is $2.4k–$48k per customer per year, with a first version reachable in six to twelve months for $38k–$88k.
HVAC & plumbing teams lose payroll errors found by the employee, not the system. The work sits between two systems that were never designed to talk. It scales linearly with headcount, so growth makes it worse rather than better.
Point an anomaly detector at payroll verification, and let people review output instead of producing it. Revenue is usage-based, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $243M |
|---|---|
| Category growth (CAGR) | 14% |
| Annual contract value | $2.4k – $48k |
| Pricing model | Usage-based |
| Time to first revenue | 51 days |
| Startup cost to MVP | $38k – $88k |
| Build effort | 6-12 months |
Streaming detection became practical without a dedicated data platform. HVAC & plumbing is growing at roughly 16% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A spreadsheet | The real incumbent in most of the market, and it is free |
| An offshore back office | Cheaper per hour, but does not scale down to the tail |
| An internal hire | Works until volume doubles, then breaks again |
Integrations with the incumbent system of record are undocumented and gatekept.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow