What Does a Missed Call Cost a Plumbing Business?

One missed call is not one lost job. Some callers were never going to book, some were spam, and some will call back later. But a missed call is still real money — because some of those callers were ready to book, and they booked with someone else instead. This post works out the cost honestly, with measured figures and your own numbers, instead of the inflated totals that vendor blogs like to quote.

Last updated 7 November 2026

Photo: Anıl Karakaya on Pexels

The caller's side: what happens in the 90 seconds after voicemail

Put yourself in the caller's shoes. Their kitchen sink is backing up, or their water heater has quit. They call you, get voicemail, and wait — for about ninety seconds, at most. Then they do the obvious thing: they call the next plumber on Google.

The first business that answers — or replies — usually wins the job, so a missed call is in most cases a booking that happened somewhere else.

The measured numbers: 78% walk away, 82% call a competitor (CallRail 2025)

CallRail's 2025 survey of 1,000 US consumers measured exactly this behaviour: 78% have abandoned a business after an unanswered call, 82% would call a competitor, and 21% would do so immediately. Only 42% leave a voicemail at all. Those are the numbers to use — they come from a named survey with a stated sample size, not from a vendor blog repeating an old claim.

Read them carefully: they mean most callers try someone else when they cannot reach you — which is why a fast reply matters more than a perfect voicemail.

Your ticket size is the multiplier (plumbing repair $150–$500)

The cost of a missed call depends mostly on what a job is worth to you. Plumbing repair typically runs $150–$500, so a single lost repair job costs you that much in revenue — before you count the repeat work, the referral, or the review that never happened. A shop whose average ticket is $500 loses more per miss than a shop whose average is $150, even if both miss the same number of calls.

Work with your own average job value: take your last twenty invoices and average them.

The honest maths: expected value per missed call, not fantasy totals

Here is the honest way to do the maths. Start with your missed calls per week, then apply two filters: the share that were genuine, bookable jobs, and the share of those you could realistically recover. Multiplying missed calls by your full ticket size assumes every miss was a job and every job was recoverable — and that is how vendor blogs produce fantasy totals.

The audit behind this series gives the honest version: if 1 in 10 missed calls would have booked at $350, then 20 missed calls a week is worth $700 a week — $350 times 2 recovered jobs. That is still serious money, about $2,800 a month, but it is a figure you can defend, because it admits that nine out of ten missed calls were never yours to win. Use the same method with your own numbers and you will get a cost you can actually plan around.

The costs nobody counts: the LSA lead you already paid for, the repeat customer, the referral

The ticket is only the first cost. If the caller found you through a Local Services Ad, you may already have paid for that lead — and a missed call means you paid for a customer your competitor served. A repeat customer who cannot reach you does not just cost one job; it costs the next five years of jobs. And a caller who had a bad experience reaching you will not refer their neighbour.

A single missed call from a good customer hurts more than ten from strangers — fix the phone for existing customers first.

Worked example with your own numbers (fill-in formula)

Here is the formula to fill in with your own figures. Missed calls per week, times the share that were genuine jobs, times your average ticket, times the share you could recover with a fast reply. As an example: 20 missed calls a week, with 1 in 10 bookable at $350, is $700 a week at risk — and recovering even half of that is $350 a week back in the business.

You can run the same numbers on the calculator on our homepage — put in your missed calls and your ticket size and it does the arithmetic for you.

What recovering just 2 calls a month pays for

Two recovered calls a month at a $350 ticket is $700 a month — enough to pay for a text-back tool many times over, with money left for anything else. That is the comparison that matters: not the tool's price in isolation, but the tool's price against the value of the calls it recovers. A $49-a-month tool that recovers two calls pays for itself fourteen times over.

That is also why the cheapest tool is not always the best value, and the most expensive is not always the best either. What matters is whether it recovers calls, on your own number, with a booking link the customer can actually use. Check our pricing — $49, $79 and $129 a month — and compare it with your own worked example above. For most small shops, the answer takes about thirty seconds.