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Guide · August 27, 2026

What a missed call really costs a plumbing shop

The scary dollar figures you've seen don't survive a curious reader. The booking-rate math does — and it's worse.

Search "what does a missed call cost a plumber" and you'll find confident numbers: a few hundred dollars per call, tens of thousands a year. Chase the citations and they evaporate — most trace to vendor blog posts that constructed a hypothetical and rounded up. We know because we used to quote figures like that on this site. We deleted them, and this page is the replacement.

The math that actually holds up doesn't need drama. It needs one published dataset: ServiceTitan's study of call-booking rates across more than 3,000 trade businesses in the US and Canada.

The number that matters is your booking rate

43%of calls at the average plumbing shop become booked jobsSource: ServiceTitan, aggregated data from 3,000+ trade businesses

Plumbing books the highest share of calls of the core trades — 43 percent, against 41 for electrical and 38 for HVAC. Read that again from the other side: the average plumbing shop does not book almost six of every ten calls. Some of those are spam and wrong numbers. Plenty are homeowners with a real problem who met a voicemail, waited on hold, or never got the follow-up.

24% vs 59%booking rate at shops under five techs vs shops over twenty-fiveSource: ServiceTitan, same study

The size split is the sharpest fact in the dataset. Big shops book nearly six in ten because someone always answers, and someone always follows up. Small shops book about one in four — not because the plumbing is worse, but because the owner is under a sink when the phone rings.

Turning the rate into dollars — honestly

ServiceTitan's own line on value: for a shop with five to fourteen technicians, every five-point improvement in booking rate is worth roughly $100,000 a year — and five points is less than one additional booked call per weekday. That's their claim, from their data, and it is the only dollar figure this article will give you.

Everything else should come from your own numbers: your calls per week, your average ticket, your current booking rate. The calculator on our pricing page does exactly that arithmetic in the open — no methodology hiding, no invented cost-per-missed-call.

What actually moves the rate

  • Answer every call, including the 9pm one. The InsideSales lead-response research found responding within five minutes makes you dramatically more likely to win the lead than waiting even half an hour.
  • Text back every missed call in seconds — before the caller reaches the next name on Google.
  • Follow up on every estimate. Quiet proposals are booked jobs that leaked.
  • Remember repeat customers. The caller who has to re-explain their house is halfway to a competitor.

This is the front office Caliber OS runs — Brooke answers, Travis books it into your field software, and the whole thing reports to you Monday morning. We won't tell you what you're losing; we'll help you count it, then close the gap.