Guide
Vendor stats like "$1,200 per missed call" are marketing, not maths. Here's the actual formula, a worked example, and realistic ranges by trade.
You've probably seen the stat: every missed call costs your business $1,200. It's on landing pages for call-answering software and it's nonsense for most trades, most of the time. It assumes every caller was booking a job worth $1,200, that you'd have closed 100% of them, and that every single one would have gone straight to a competitor instead. None of that is true for a plumber, cleaner or landscaper doing routine work.
The real number is smaller, but it's still real money, and it's easy enough to work out from figures you already have.
Missed call value = average invoice × call-to-job close rate × probability they don't call you back.
Three variables, each doing a specific job:
Say your average invoice is $420, you close 35% of the calls you answer, and past experience (or a call-tracking log) tells you 75% of people who hit voicemail don't ring back.
$420 × 0.35 × 0.75 = $110.25
One missed call is worth around $110, not $1,200. That's still a real cost — if it happens fifteen times a month, that's $1,650 you'll never see. But it's a number you can act on, not a scare figure you can't verify.
You can run this with your own three numbers on the missed-call revenue calculator instead of doing it by hand.
The three inputs vary a lot by trade, so the per-call value swings from around $60 to over $300. Rough, honest ranges based on typical ticket sizes and how urgent the work usually is:
| Trade | Typical avg invoice | Close rate | No-callback rate | Value per missed call |
|---|---|---|---|---|
| Residential cleaning | $180 | 45% | 70% | ~$60 |
| Landscaping / lawn care | $260 | 40% | 70% | ~$75 |
| Handyman | $320 | 40% | 70% | ~$90 |
| Plumbing | $420 | 35% | 75% | ~$110 |
| Electrical | $480 | 35% | 80% | ~$135 |
| HVAC (repair + install mix) | $900 | 40% | 85% | ~$310 |
HVAC sits at the top mainly because of the no-callback rate. Someone with no heat in January calls the next number on Google before your voicemail even finishes. Cleaning sits at the bottom because tickets are smaller and people are more patient — they'll wait a day for a callback on a routine clean.
The table above is a starting point, not your answer. To get your real figure:
Once you have a per-call figure, the monthly cost scales in a straight line. Using the $110 plumbing example:
| Missed calls per month | Monthly cost | Annual cost |
|---|---|---|
| 5 | $550 | $6,600 |
| 15 | $1,650 | $19,800 |
| 30 | $3,300 | $39,600 |
Most one or two-van operations miss more calls than they think — on the tools, on another job, driving, on the phone with someone else. If you don't know your own monthly count, a week of checking your call log against your booked jobs will get you close enough.
The formula above only counts the job you missed. It doesn't count what that customer would have been worth over years.
Take that $420 plumbing job. If that customer would normally book two more jobs a year — a service call here, a fixture replacement there — at an average of $250 each, over five years that's $420 + (2 × $250 × 5) = $2,920 in potential lifetime revenue. Add a referral or two and it's higher still.
None of that walks out the door because of one missed call. But every missed call is a small chance that it does — the caller who'd have become a five-year customer instead becomes someone else's five-year customer, permanently, because they happened to reach a competitor's voicemail box on a slower day than yours.
Knowing the per-call value only matters if you use it to make a decision. The obvious one: is it worth stopping what you're doing to answer, or paying someone else to answer for you?
If you're mid-job and answering costs you five minutes of billable time, compare that against your actual hourly rate — check it on the hourly rate calculator if you've never worked it out properly. If your time is worth $65 an hour and the missed call is worth $110, letting it ring through to voicemail and calling back within the hour usually beats stopping the job. If your no-callback rate is high, that calculation flips — a $2/month answering service or auto-text-back starts looking cheap next to $1,650 a month walking away.
Don't quote the $1,200 stat to yourself or anyone else. Work out your three numbers — average invoice, close rate, no-callback rate — and multiply them. Then multiply that by how many calls you actually miss in a month. That's your real number, and it's the one worth acting on, whether the action is a better voicemail message, a call-answering service, or just keeping your phone within reach between jobs.
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