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How much does an AI answering service cost for a plumber?

For a typical two-truck plumbing company taking around 300 calls a month, an AI answering service on usage pricing costs roughly $180–200 a month — about $0.60 per three-minute call — with no monthly fee, no seats and no contract. A traditional answering service handling the same calls typically runs $400–700 once per-call or per-minute charges and the monthly minimum are added, and it takes a message rather than booking the job. Here is the arithmetic, and what each price actually buys.

Published 2026-09-15 · 5 min read

What does an AI answering service charge per call?

It depends on the pricing model. WireDesk bills voice at $0.20 per started minute, so the price of a call is its length rounded up to the minute. A one-minute 'are you open' call is $0.20. A three-minute call that books a drain cleaning is $0.60. A seven-minute emergency call where the agent keeps the caller calm and transfers you is $1.40.

There is no per-call minimum, no monthly platform fee and no seat licence. If the phone doesn't ring, the bill is zero. There is also a hard monthly spend cap on every account — $50 by default, which you raise when you're ready — so the bill can never be a surprise.

What does a month actually come to?

Take a two-truck shop with 320 inbound calls a month averaging three minutes: 320 × 3 × $0.20 = $192. Add 150 website chats at $0.02 each ($3) and 80 emails at $0.02 ($1.60) and the month is about $197. In a slow month with 200 calls it's closer to $125. In a cold snap with 500, about $300.

One water heater replacement covers a quarter of that. One emergency call that would otherwise have gone to voicemail — and to the next plumber in the search results — covers the month.

How does that compare to a traditional answering service?

Live answering services for trades typically price per call, per minute, or in monthly bundles of minutes, with a monthly minimum. Common ranges are $1–2 per call or $0.80–1.50 per operator minute, with plans starting around $100–300 a month before overages. For the same 320 three-minute calls, a per-call service at $1.50 is $480; a per-minute service at $1.20 is $1,150. Check your own invoice — the range is wide.

The bigger difference is what happens on the call. An answering service operator reads a script and takes a message: name, number, 'someone will call you back'. That message waits for you. An AI agent trained on your website answers the question the caller actually asked — do you serve my area, how much is a drain cleaning, can someone come today — books the visit on your calendar, and transfers the flood to your phone live. The caller gets an answer; you get a booked job instead of a callback list.

What's included in the AI price, and what isn't?

Included at WireDesk's rates: the voice agent itself, trained from your website; live transfer of a call to your phone; message-taking with a text to you; booking into your calendar; the same agent on your website chat and on its own email address; a dashboard with every conversation and transcript; roles for your team; and the spend cap.

Not included: a phone number, if you want a new one rather than forwarding your existing line — bring your own or provision one at cost. And not included, deliberately: anything the agent would have to guess. If your website doesn't publish a repipe price, the agent says a plumber will quote on site and books the visit. It never invents a number.

Is there a free way to try it?

Yes. WireDesk starts free with no credit card and a $50 spend cap. Paste your website, chat with the agent on your own content within a minute, then hear it answer by voice in the browser. Most plumbers put it on the website first, listen to it for a day or two, then forward the phone line — after hours to begin with, if that's more comfortable.

If you want to put a number on what missed calls are costing you today, the missed call revenue calculator does it in thirty seconds with your own figures.

FAQ

Related questions

Mid-range for a finished agent. Developer platforms where you build the agent yourself advertise lower per-minute floors — around $0.07 — and land at $0.11–0.15 once the speech, model and telephony are added; agencies then charge to build and maintain the flow. WireDesk's $0.20 includes the agent being built from your website, chat and email on the same agent, and live transfer to you.

See it on your own website in the next five minutes.