What a Missed Call Actually Costs Your Business
September 23, 2026 · Pricing · 6 min read
Most owners know they miss calls. Very few have multiplied it out, because the number is unpleasant and nothing in the accounts forces the question.
Here is the calculation, with the honest adjustments included.
The four numbers
1. Missed calls per month. From your carrier or VoIP logs, over 90 days, divided by three. Not from memory, memory undercounts badly, because the calls you never heard about are invisible by definition.
2. Booking rate. Of the enquiries you actually speak to, what share become paid jobs? For home services one in three is typical; strong operators run higher.
3. Average job value. Your real average across the mix, not your headline service.
4. Repeat and referral value. A customer is rarely one job. If a typical customer returns twice over three years and refers occasionally, the true value of winning them is a multiple of the first job.
Worked example
A plumbing company:
- 220 inbound calls a month, 38 unanswered (17%, on the good side).
- Booking rate 35%.
- Average job $465.
38 × 0.35 × $465 = $6,185 a month, or roughly $74,000 a year in first jobs alone.
Now the honest discount. Not every missed call is lost:
- Some ring back. Call it 25% recovered, generous for a trade with urgent calls.
- Some were wrong numbers, sales calls or robocalls. Call it 15% of missed volume.
38 × 0.85 (real enquiries) × 0.75 (not recovered) = 24 genuinely lost enquiries. At 35% and $465, that is $3,900 a month, or $47,000 a year.
Then add lifetime value. If an average customer is worth 2.2 jobs over three years, the annual figure is closer to $100,000 in eventual revenue.
That is one small plumbing company, with a missed-call rate better than most.
Why the "they'll call back" assumption fails
The recovery rate is not evenly distributed. The callers who ring back are disproportionately the ones with non-urgent problems, a quote, a scheduled service, a question.
The ones who never ring back are the emergencies. And emergencies are your highest-value, highest-margin work, often at a premium call-out rate. So the 25% you recover is drawn from the cheaper half of the list, and the money lost per missed call is higher than the flat average suggests.
The costs the calculation misses
- Paid ads ringing a voicemail. If any of your missed calls came from Google Ads or LSAs, you paid for the click that produced them. That is spend converted directly into a competitor's booking.
- Review damage. "Called twice, nobody answered" is a one-star review that suppresses future calls.
- Google Business Profile signals. A call from your profile that goes unanswered is a bad outcome for the caller, and your listing is judged on caller outcomes.
- Crew utilisation. Missed calls produce uneven schedules, gaps you pay for regardless.
What to do with the number
Once you have it, the comparison is easy. Against $3,900 a month in lost work:
- A staffed answering service at $1,000 a month is obviously worth it.
- An AI answering service at $150 a month is not a close call.
- Missed-call text-back at $30 a month recovers part of it and is worth adding regardless.
The only wrong move is leaving it as it is because voicemail costs nothing on the invoice.
Do this now, it takes ten minutes
Log into your carrier portal, export 90 days of inbound calls, count the unanswered ones, and multiply. Then bucket those calls by hour of day, the daytime share usually surprises people more than the night one, and it points at a different fix than most owners expect.
Common questions
- How much does a missed call cost a business?
- Multiply your missed calls by your booking rate and your average job value. For a contractor missing 30 calls a month, booking one in three enquiries, at a $400 average job, that is roughly $4,000 a month in work that went somewhere else, before any repeat business those customers would have brought.
- Do missed callers call back?
- Some do, but far fewer than owners assume, and the urgent ones are the least likely. Someone with an active leak or no heat is dialling the next company within seconds, and once they have booked with someone else your callback has nothing to sell.
- How do I find out how many calls I miss?
- Export the inbound call log from your carrier or VoIP provider for the last 90 days and count calls that were unanswered or went to voicemail. Most small contractors find 20% to 40%, and are surprised by how many arrive during working hours.
