Plumbing
What one missed call really costs a trades business
A missed call costs you the job the caller would have booked, plus the repeat work and referrals that customer would have brought. Example numbers: miss 4 calls a week, say half would have booked, at a $400 average job, and that's $800 a week or $41,600 a year. Count your own missed calls for a week and run the same math.
You're under a sink with a wrench on the trap, and the phone on the floor starts buzzing. Your hands are wet, the customer is watching, and you let it go. It feels like nothing. One call. But that call had a price tag, and most owners have never added it up.
Why a missed call doesn't come back
People calling a plumber are rarely browsing. Something is leaking, clogged or cold, and they want it handled. They searched, got a list of names, and tapped the first one. If nobody answers, tapping the second one is easier than leaving a message.
Plenty of callers won't leave a voicemail at all. Some think it's pointless, some are standing in water, and some just don't like talking to a recording. So a missed call doesn't always show up as a lead you can chase. It often shows up as a number in your call log with no message, which is easy to ignore and hard to win back.
The math, one line at a time
Here's the calculation with round numbers. They're not anyone's real figures. Swap in your own as you go.
Example numbers
You miss 4 calls a week from people who could have been customers.
Say half of them would have booked with you if you'd answered. That's 2 jobs a week.
Your average job is $400. So 2 jobs times $400 is $800 a week.
Over 52 weeks, that's $41,600 a year walking to the plumber down the road.
Four a week is not a lot. That's less than one a day, the kind of number you'd hit just from calls during jobs, drives and dinner. And "half would have booked" is a guess you should tune: new callers with an active problem book at a higher rate than someone asking a general question.
What the first job doesn't count
The $41,600 in that example is only the first ticket from each caller. A customer who has a good first experience with you is worth more than one visit, and that part never shows up on the receipt.
- The next job at the same house. The customer who called about a running toilet may need a water heater in two years, and they'll call whoever fixed the toilet.
- The neighbor. Homeowners ask each other who they use. A customer you never met can't recommend you.
- The review. Happy first-time customers are the ones who leave reviews, and reviews bring in the next round of callers.
- The busy-week effect. You miss the most calls in your busiest weeks, like the first hard freeze, and those are often the most valuable jobs of the year.
That last point matters more than it sounds. Missed calls aren't spread evenly. They cluster exactly when demand is highest and callers are least patient.
Run your own numbers this week
Don't trust anyone's example, including this one. It takes about ten minutes to get a real figure for your shop.
- Pull a normal week from your call log. Not a holiday week, not your slowest week. List every missed call.
- Cross out the noise. Spam, vendors, family, and numbers you know aren't customers.
- Check which ones you reached later. Mark the ones you called back and actually booked. Those weren't lost.
- Count what's left. That's your missed calls per week from possible customers.
- Pick an honest booking rate. If you're not sure, use a conservative guess below half.
- Use your real average ticket. Service revenue divided by service tickets from last year's books.
| Line | Example | Yours |
|---|---|---|
| Missed calls from possible customers, per week | 4 | ____ |
| Share who would have booked | half | ____ |
| Jobs lost per week | 2 | ____ |
| Average job | $400 | ____ |
| Lost per year (times 52) | $41,600 | ____ |
Example numbers only. Your call volume, booking rate and ticket size will differ.
Once you have a yearly figure, compare it to what you spend on marketing. If you're paying for leads while letting calls ring out, it's worth reading whether pay-per-lead services are worth it before you buy more.
Ways to stop the leak
There's no single right answer. What fits depends on your call volume, your budget and how much of the day you're on the tools.
- Answer more yourself. A headset or a truck setup that lets you pick up hands free catches some calls, but not the ones that come in while you're mid-repair with a customer watching.
- Get someone on the phone. A spouse, a part-time office person, or a hired receptionist. It works well until they're on another line, at lunch, or off for the night.
- Use a phone service. Answering services and AI receptionists pick up when you can't. The useful ones collect the details you need and get the job in front of you fast.
- Sort after-hours calls with a plan. Decide which calls justify getting out of bed with a clear emergency triage routine, so the real ones get answered and the rest wait for morning.
The mistake to avoid
The common trap is judging missed calls by how they feel instead of by what they cost. One call during a job feels like a fair trade for keeping your focus. Fifty-two weeks of them is a truck payment, or a helper's wages, or the vacation you didn't take. Count them once, write the yearly number somewhere you'll see it, and decide from there. More phone and scheduling guides for shop owners are on the Booked for plumbers page.
Common questions
Don't most people just call back if I miss them?
Some do, mostly existing customers who already trust you. A new caller with a leak usually has a list of names from a search, and trying the next one takes a few seconds. The more urgent the problem, the less patience they have for waiting on a callback.
Should I count spam and robocalls in my missed calls?
No. Strip out obvious spam, vendors, and numbers you recognize as personal before you do the math. What you want is the count of unanswered calls from numbers that could plausibly be customers. If you aren't sure about a number, leave it out so your estimate stays conservative.
What average job value should I use?
Use your own, from last year's invoices: total revenue from service work divided by the number of service tickets. Leave out big one-off projects like a whole-house repipe, since they skew the average up. If you only have a rough feel, pick the low end of what you believe.
Is calling back fast almost as good as answering?
It helps a lot compared to calling back hours later, but it isn't the same. By the time you're off the ladder or out from under the sink, the caller may already have someone booked. A fast callback works best for estimate requests and routine jobs, and worst for anything with water on the floor.