Missed call revenue calculator for plumbers
Work out what unanswered calls are costing your plumbing company. Put in how many calls you miss in a typical week, what an average job is worth to you, and how many of those callers you think would have booked. The calculator does the rest — nothing is sent anywhere and there is no sign-up.
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The calculator
Run it with your own figures.
Nothing here is our estimate. Put in what you know about your own phone and see where the threshold sits.
Your guess, not ours.
Clears the threshold. If it lands short in real life, month one is on us.
We don’t need the whole list. We need three jobs.
How the arithmetic works.
No industry averages, no borrowed statistics. Every number is one you put in.
Missed calls a month
Your weekly figure multiplied by 4.33, which is the average number of weeks in a month rather than a rounded four. Over a year the difference is about four extra weeks of calls, so it is worth being exact.
Jobs you would have booked
Monthly missed calls multiplied by your own conversion guess. We do not supply a default here on purpose — a shop doing emergency work converts very differently from one doing scheduled installs, and any number we picked would be flattering rather than useful.
Recovered revenue
Booked jobs multiplied by your average job value. This is the figure worth comparing against what any answering service, receptionist or AI would cost you.
What this calculator cannot tell you.
It assumes every missed call was a real customer. Some were suppliers, some were spam, and some were the same person ringing three times in four minutes — which is one lost job, not three. If you have not looked at your call log, the honest move is to assume your real number is lower than your first guess.
It also assumes you could have taken the work. A booked job you cannot get to for nine days is not the same as one you can do tomorrow, and in an emergency trade that difference sometimes decides whether the customer stays booked.
So treat the output as an upper bound rather than a forecast. If the upper bound is not comfortably above what a solution costs, the solution is not worth buying — which is a genuinely useful thing to find out in two minutes.
If the number is big enough to act on.
Our own service costs $500 to set up and $500 a month, and we refund the whole $1,000 if it does not book you at least $3,000 of work in month one. But the calculator is useful whatever you do with it — the same figure tells you whether an answering service or hiring someone is worth it, and those pages compare the costs with sources.
The comparisons: what we charge and why, against a live answering service, against hiring a receptionist, and against leaving it on voicemail.
Questions about the numbers.
It depends entirely on your call volume, your average job value and how many callers would have booked, which is why this calculator asks for all three rather than quoting an industry figure. As a worked example: eight missed calls a week, a 25% booking rate and a $450 average job comes to roughly $3,900 a month.
Your phone provider or mobile carrier can show you unanswered calls by month, and most VoIP dashboards break it down by hour. That is a better starting point than memory — most owners underestimate the after-hours figure and overestimate the daytime one.
Use your own, not ours. If you have no idea, start at 20–25% for general service work and adjust after you have looked at a month of recordings. Emergency calls convert far higher than price-shopping ones, so the mix matters more than any single number.
Yes, and there is nothing to sign up for. It runs entirely in your browser — none of the figures you type are sent to us or stored anywhere.
Ring the line the calculator is about.
If the number came out big, the next thing worth doing is hearing what would have answered those calls. It takes sixty seconds.