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growth automation·April 18, 2026·4 min read

The math behind a missed call — and why $14k/month is a real number

Most service businesses underestimate missed-call cost by 3–5x. Here's the actual calculation, the one assumption everyone gets wrong, and why text-back automation pays for itself in week one.


By Dawson Lafy

A 10-truck HVAC company in a mid-sized metro typically misses 8–12 calls a day during peak season. Most owners I talk to estimate the cost at 'a few hundred bucks a week.' The actual number is closer to $3,000 per week. Here's the math.

The inputs

  • Inbound calls per day: 40 (average for a 10-truck operation)
  • Calls missed: 20% → 8 calls/day missed
  • Recovery rate without automation: ~22% (prospect calls back)
  • Recovery rate with text-back automation: ~67%
  • Close rate on recovered calls: 35%
  • Average ticket: $420 (service call + basic repair)

The delta

Without automation: 8 missed × 22% recovered × 35% closed × $420 = $259/day in captured revenue. With automation: 8 missed × 67% recovered × 35% closed × $420 = $788/day. That's $529/day of recovered revenue — $3,700/week, or roughly $14k/month during an average season.

The assumption owners get wrong

Most owners assume a missed call means the prospect will try again. In the $60-$500 ticket range, the data says the opposite: ~78% of missed calls never call back. They go to the next result in Google. Speed to first response is the ranking system of local service marketing.

Why text-back works

The second a call goes unanswered, an SMS hits the caller's phone from the business number — under 10 seconds. The message says someone will call back shortly and asks what they need. Prospects reply. That reply is the difference between 22% and 67% recovery.

[ Do the math on your numbers ]

If you know your missed-call rate and your average ticket, the recovery revenue is calculable in 30 seconds. Book a diagnostic and we'll run it for you.

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