What missed calls cost a plumbing business, worked out

One missed call from a new customer costs your average job value times the share of new inquiries you normally win. On a $280 job with a 30% win rate, that's $84 a call.

Cost of one missed call = your average job value x the share of new inquiries you normally win.

For a year:

Missed new-customer calls a week x the share you'd win x your average job value x 52 weeks.

That's the formula our calculator uses. Nothing is rounded up along the way, and it only counts the first job, not repeat work or referrals.

HomeGuide puts the national average plumbing job at $280, with most jobs between $125 and $350. Your own invoices are the better guide, but if you don't have an average to hand, its cost guide gives these US prices for common work (HomeGuide):

These are consumer price guides, so they show what customers typically pay, before your costs. Bigger jobs, such as a repipe or a bathroom remodel, are worth far more, and one of those from a missed call changes the sum completely. Our guide on what to charge as a plumber covers setting your own rates.

Three missed new-customer calls a week at a 30% win rate on the $280 national average job comes to $13,104 a year. Here's how the figure moves with the inputs:

Example call counts and win rates. Swap in your own.

You can open any of these in the calculator and change the numbers, for example 3 calls, 30% and $280.

The biggest lever is the job value. Two missed calls a week about water heaters, at a lower 20% win rate, cost more than five missed calls about average jobs.

You need four numbers, and about 15 minutes with your call log and invoices:

• Missed calls: look at your cell phone's call log, or your provider's online account, for two normal weeks.
• New customers only: cross out numbers already in your contacts, suppliers and obvious spam. Existing customers usually call back.
• Your win rate: of the last 20 new inquiries you did answer, how many turned into a job?
• Your job value: take your average invoice over the last few months.

Put those into the missed call calculator. If the yearly figure is small, the free fixes in our guide to how to stop missing business calls are where to start.

In a CallRail survey of 1,000 US consumers, 82% said they'll call a competitor if a business doesn't answer. Survey figures are a useful sense check, but they're about consumers in general, not measurements of your business.

• 78% said they have abandoned a business after an unanswered call (CallRail, 2025).
• Only 42% said they leave a voicemail.
• 21% said they immediately call another business.

CallRail sells call tracking software, so treat the figures as a vendor survey. Our guides on does anyone leave voicemail and why customers call the next contractor look at what those callers do next.

The sum counts one job per call, so it's a floor. A new plumbing customer can also bring:

• Repeat work, such as the next repair or a water heater swap later.
• Referrals to neighbors, friends and family.
• Reviews that help the next customer choose you.

If you advertise on Google Local Services Ads, Google's help pages say that missed calls may negatively affect your responsiveness, which is one of the factors in how those ads are ranked. That applies to Local Services Ads, not ordinary search results. Our guide to Local Services Ads and missed calls covers it in detail.

We've left these out of the worked examples because they're hard to put a figure on. Treat your answer as a floor, not a ceiling.

At $280 a job, Ringzel's Basic plan at $99 a month, or $1,188 a year paid monthly, is covered by 5 extra jobs a year. Compare your own yearly figure with what cover costs.

Professional, at $179 a month or $2,148 a year paid monthly, adds bookings into your calendar and call transfers. At $280 a job, it's covered by 8 extra jobs a year. Paying yearly costs less: $990 for Basic and $1,790 for Professional.

If your own numbers come out well below the cost of any paid option, don't buy one. A clear voicemail greeting and fast callbacks may be enough. Our guide to AI receptionists versus answering services compares the options, and after-hours plumbing calls covers evenings and emergencies.

Ringzel is an AI answering service for plumbers that answers every call you forward to it, 24/7. It answers in your business name, tells callers it's automated, takes the job details and gets them to you so you can call back and win the work.

• A summary after every call, with the recording, transcript and check report.
• Urgent calls follow your rules, so you know straight away which ones can't wait.
• On Professional and Premium, routine jobs can be booked into your calendar during the call, and calls can be transferred to you.
• You keep your number and forward only the calls you can't take.

Plans cost $99, $179 or $299 a month, as shown on our pricing page. Every plan has a 14-day free trial with no card to start.

14-day free trial. No card to start. Keep your number.