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A retrieval engine that sits beside the existing system, reads what it already produces, and closes document review. Aimed at construction estimators, replacing the spreadsheet that currently holds it together.
In short: Document Reviewer for Construction, Run by Retrieval is a retrieval engine aimed at construction estimators, covering document review. It scores 76/100 on AltF Ideas, carried by moat (95) and held back by monetisation (32). Typical pricing is $4.5k–$68k per customer per year, with a first version reachable in about a quarter for $12k–$36k.
Construction teams lose a 900-page document read by someone billing $300 an hour. Nobody owns this process, which is exactly why it keeps breaking. It scales linearly with headcount, so growth makes it worse rather than better.
A narrow retrieval engine scoped to document review alone — no platform, no migration, no six-month rollout. Revenue is data subscription, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $1.3B |
|---|---|
| Category growth (CAGR) | 17% |
| Annual contract value | $4.5k – $68k |
| Pricing model | Data subscription |
| Time to first revenue | 71 days |
| Startup cost to MVP | $12k – $36k |
| Build effort | ~1 quarter |
Retrieval over private documents became cheap enough to run per query. Construction is growing at roughly 20% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A generalist AI tool | No domain grounding, so output needs full human review |
| 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 |
Trust has to be earned before anyone lets this run unsupervised.
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