It is 4:40 on a Tuesday. You are under a sink with both hands busy, and your phone buzzes in your pocket. You let it go. By the time you dry your hands, the caller has hung up without leaving a message.

Was that a wrong number, or a water heater replacement? You will probably never know. And that is the problem with missed calls: the cost is real, but it never shows up on a bill.

Why the cost stays invisible

A missed call does not send you an invoice. Nobody tells you the job went to the next shop on the list. The caller who needs help today does not wait for a callback tomorrow. They dial someone else.

So most owners guess. Some think missed calls cost them almost nothing. Others think they are losing a fortune. Both are guessing. You can do better in about fifteen minutes with numbers you already have.

The four numbers you need

You need four numbers from your own business. Not an industry average. Yours.

  1. Calls a week. How many calls come in during a normal week. Your phone app or your phone provider’s call log will show this.
  2. Calls missed a week. How many of those went unanswered, including after hours and weekends. The same call log shows this.
  3. How many calls turn into a job. Out of every ten calls you do answer, how many become paid work? Be honest, and round down if you are not sure.
  4. Your average job value. What a typical job is worth to you. Your field service app or your invoices from the last few months will tell you.

Do the math

Multiply them like this:

Missed calls a week × share that turn into a job × average job value = what missed calls may cost you each week.

Then multiply by 52 for a year.

Here is an example with made-up numbers, only to show the arithmetic. Say a shop misses 8 calls a week. Say 3 out of every 10 answered calls turn into a job. And say the average job is worth $350.

8 × 0.3 × $350 = $840 a week.

$840 × 52 = $43,680 a year.

Those are not anyone’s real figures. Put your own numbers in. Your answer might be much smaller or much larger. Either way, it is now a number you can act on instead of a feeling.

Two cautions keep the estimate honest. First, not every missed caller was a real job; some were sales calls or wrong numbers. If you can tell from the log, leave those out. Second, some missed callers do call back. The estimate is a ceiling, not a promise. Treat it as “up to,” not “exactly.”

What the number tells you

If your weekly figure is small, good. You do not need to spend money on this. Put your effort somewhere else.

If it is large, you have a budget. You now know roughly what it is worth to catch those calls, which tells you what a fix is worth paying for. The usual options, from simplest to most involved:

  • Answer more. Shift who picks up the phone during your busiest hours.
  • Call back faster. Set a rule that every missed call gets a callback within a set time, and check it daily.
  • Text back. Some tools send an automatic text when a call is missed, so the caller hears from you while you are still busy.
  • Answer the other channels after hours. Website forms and emails that arrive at night can get a reply before morning.

If you look at a text-back tool, ask this first

Texting customers from a business number has rules. US carriers use a standard called A2P 10DLC. Twilio describes it as the standard carriers put in place to make sure business texts sent from regular 10-digit numbers are “verified and consensual.”

So before you buy any text-back tool, ask the vendor three plain questions:

  1. Is the number that sends the texts registered for business texting, and who handles that registration?
  2. What happens when a customer replies or asks you to stop texting?
  3. Where does a person see the conversation, so nothing is left hanging?

A vendor who answers those clearly has done this before. A vendor who is not sure is asking you to find out for them.

Your one step this week

Tonight, open your call log and count last week’s missed calls. Put that number, and your other three, into the formula above. Write the answer down.

If the number is worth fixing and you want help choosing the right fix, see what we build.

Sources

  • A2P 10DLC — Twilio documentation, checked October 1, 2026

Bring your four numbers and book a free call. We will tell you which fix fits, or whether it is worth fixing at all.