The Math on Missed Calls for a Solo Plumber

You were under a sink when the phone rang. It rang again at 2:40 while you were brazing a joint. By the time you checked it in the truck, there was one voicemail and one number you didn't recognize.

That's not a phone problem. That's a revenue problem, and it has numbers.

What actually happens to your calls

In 2024, the marketing firm 411 Locals ran a study across 85 small businesses in 58 industries. They called during business hours, like a customer would. Only 37.8% of those calls were answered by a person. The rest went to voicemail or rang out.

Think about who is calling a plumber. Somebody with water where water shouldn't be. They are not leaving a voicemail and waiting politely. They are calling the next plumber on Google. You have done it yourself as a customer: two rings, no answer, back button, next result.

The math for one truck

Skip the industry statistics and just run your own numbers. Say your average job is $450, and a water heater swap runs $1,800 or more.

• One missed drain call a week: about $23,000 a year walking to a competitor.
• One missed water heater a month: another $21,000 and change.
• Total: a solo shop can leak $40,000 a year through the phone alone, without doing anything wrong except being good at their job and under a sink when it rang.

Those aren't leads you failed to close. They are jobs you never knew existed.

Voicemail is not a backstop

A voicemail greeting was a fine answer in 2005. Today it's where calls go to die, because the caller has an alternative that answers instantly: the next search result. The customer with a flooded basement doesn't owe you a callback window. The one with a dripping faucet doesn't either, they just have more time to shop.

The uncomfortable part is that being great at the work makes this worse. The better you are, the more you're on a job and off your phone.

What answering actually requires

You don't need an office manager for this, and you don't need to answer on the second ring from a crawl space. You need two things:

1. Every caller and texter gets an immediate, useful response, even when your hands are full.
2. The real conversations, the ones about price, scope, and emergencies, still reach you.

That's the whole job description. An answering service does half of it badly, reading a script and taking a message you still have to return at 7pm. Hiring for it costs more than the missed calls did.

This is the exact problem we built Right Hand around: the calls and texts get handled the moment they come in, the lead gets qualified and booked against your real calendar, and anything that needs your judgment, price talk, technical questions, emergencies, gets handed to you instead of guessed at. I run a licensed remodeling company in San Diego, so I watched this math play out on my own phone before writing a line of it into software.

Run your own version of the numbers this week. Count the calls you couldn't take, multiply by your average ticket, and decide if the phone is still a side detail in your business.