What do missed calls actually cost a contractor?

Short answer: nobody selling you an answering service knows your number, but you can measure it in 15 minutes. First, a word about the scary statistics in every ad, because we tried to verify them and you should know what we found.

The stats don't survive checking

Depending on which vendor's page you read, "85% of callers won't leave a voicemail," or "93% of people who hit voicemail never call back," or "fewer than 3% of callers routed to voicemail leave a message." Those numbers can't all be true, and when we traced them, none led to a public primary study; they're marketing pages citing other marketing pages. This site's rule is that unverifiable numbers get left out. So instead of borrowing a scare stat, here's the honest version: some real fraction of callers who can't reach you call the next contractor on the list. You already know that's true; you do it too. The question is what it costs your shop, and that's measurable.

Measure your own number this week

Three inputs, one week of attention:

1. Missed calls per week. Your phone's call log already knows. Count calls that rang out or hit voicemail during working hours, plus everything after hours.
2. Your booking rate. Of the calls you do answer, what fraction become jobs? Rough is fine.
3. Your average job value. Last ten invoices, averaged.

Example with round numbers (arithmetic, not a statistic): 10 missed calls a week, a 30% booking rate, $400 average ticket → $1,200 a week of exposure. Even if only half of those callers would truly have hired you, that's real money against fixes that cost tens of dollars a month. Your inputs will be different; that's the point of measuring.

The fix ladder, cheapest first

• A booking link everywhere ($0–20/mo). On your voicemail greeting, your website, your Google Business Profile: "fastest way to get on my schedule is the link." Some callers just want a slot.
• Missed-call text-back (~$20–50/mo). Anyone who rings out instantly gets a text: "On a job. Text me what you need and I'll reply by end of day." Cheap, and it keeps the lead warm without interrupting your work.
• A human answering service. Real coverage, real cost; worth it for some shops, overkill for others.
• AI phone answering. Improving fast, but be honest about limits: emergencies, complex quotes, and angry callers still need you. Anyone who says otherwise is selling something.

Is the phone actually your biggest leak?

Sometimes it isn't: it's the quoting evenings, or the invoice chasing, or the schedule ping-pong. Log one week of your time and see which one costs the most before you buy anything for the phone.

Related: What admin tasks can actually be automated? · What can AI actually do for a small business?

A note on sources: we reviewed the commonly cited missed-call statistics (e.g. on vendor pages like this one) and could not trace them to any public primary study; the figures range from 85% to 93% to under 3% depending on the page. That's why this guide teaches the measurement instead of quoting a number.