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Point a reconciliation engine at invoicing, and let people review output instead of producing it. Aimed at hvac & plumbing owner-operators, charging only when it actually works.
In short: Reconciliation Invoice Engine for HVAC & plumbing is a reconciliation engine aimed at hvac & plumbing owner-operators, covering invoicing. It scores 72/100 on AltF Ideas, carried by monetisation (97) and held back by open field (36). Typical pricing is $3.8k–$82k per customer per year, with a first version reachable in six to twelve months for $28k–$79k.
HVAC & plumbing teams lose invoices assembled from four systems by hand. Every hvac & plumbing team solves this the same way: someone stays late. The backlog only surfaces when a customer or an auditor finds it first.
A reconciliation engine that sits beside the existing system, reads what it already produces, and closes invoicing. Revenue is per-outcome, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $691M |
|---|---|
| Category growth (CAGR) | 17% |
| Annual contract value | $3.8k – $82k |
| Pricing model | Per-outcome |
| Time to first revenue | 72 days |
| Startup cost to MVP | $28k – $79k |
| Build effort | 6-12 months |
Systems that never talked now expose APIs by default. 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 |
|---|---|
| An internal hire | Works until volume doubles, then breaks again |
| An offshore back office | Cheaper per hour, but does not scale down to the tail |
| A spreadsheet | The real incumbent in most of the market, and it is free |
The data you need lives on paper in a back office; digitisation is half the product.
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