Is an AI answering service worth it for a plumber? The missed-call math
For a plumbing or HVAC company, a missed call isn't a missed $40 order. It's a missed job. The average plumbing or HVAC job runs around $340, and emergency calls far more (Angi 2026 cost data, via CallNeo).
The math, with your own numbers
You need three numbers: calls you miss in a week, the share of those that would have booked, and your average job.
| Example | |
|---|---|
| Missed calls a week | 10 |
| Missed calls a month (× 4.3) | 43 |
| Share that would have booked | 30% |
| Jobs lost a month | about 13 |
| Average job | $340 |
| Revenue lost a month | about $4,400 |
Even at a 40% margin, that's around $1,750 of profit a month walking to the next plumber in the search results. Our trades ROI calculator does this with your numbers.
When the calls come in
Across jobs booked online on Housecall Pro, 41% come in after hours, with the largest share between 1 and 4 AM (cited by JustCall, 2026). Those are exactly the calls that go to voicemail, and most people don't leave a message: they call the next number.
What a good AI answering service should do for a trade
- Recognize emergencies (gas smell, CO alarm, flooding, sewage, no heat in a freeze) and give the safety step first: leave the house for gas; shut the water main.
- Get a human on the line: text the job to your on-call phones, then ring them all at the same time, and call again if nobody confirms. A single ring that goes to voicemail is worse than nothing, because the caller thinks someone is coming.
- Check the address before offering a time, so no truck drives 60 km out of your area.
- Quote only what you'd stand behind: your diagnostic fee and after-hours call-out. Repairs get priced on site.
- Book a real arrival window, never more jobs than you have trucks.
- Screen sales calls so they don't eat your minutes.
When it's not worth it
If you already answer nearly every call, day and night, an AI service mostly saves you time rather than winning jobs. It pays best for owner-operators on the tools all day, and for companies that want nights and weekends covered without paying someone to sit by the phone.
What it costs with Notanai
The trial is free for 13 days or 13 booked jobs. Solo is CA$79 a month plus CA$6 per booked job: one extra job a month covers it. Crew (CA$199 a month plus CA$4.50 per job) and Fleet (CA$399 plus CA$3.00 per job) are billed every 3 months.