What an after-hours call is actually worth to a service business

Every company selling an answering service will tell you how much you're losing to missed calls. The numbers are big and they come from people who benefit if you believe them. So here's how to get your own number first, and then what the published figures say and who published them.

Start with your own numbers

You need four things, and you probably know three of them already.

• How many calls come in after your office closes in a typical week. Your phone system or your cell's call log will tell you. Count a normal week, not the week of the cold snap.
• How many of those go unanswered or to voicemail.
• Your average job value.
• Your close rate on the calls you do answer - roughly what share turn into a job.

Then: unanswered calls per week, times 52, times your close rate, times your average job. That's the annual value of the after-hours calls that are currently going nowhere.

Emergency jobs usually carry a higher ticket than routine ones, so if you know roughly what share of your after-hours calls are emergencies, the estimate gets sharper. The missed-call calculator does this arithmetic from your figures and nothing else - no benchmarks baked in that you didn't type.

What owners report

The most useful numbers I've seen are from owners who tracked it themselves rather than from studies.

A small-business owner on Reddit in December 2025 counted 8 to 10 calls between 6pm and midnight and found "90% of them don't leave a message" - which is the whole problem in one sentence. A message you can return in the morning. A hang-up you can't. That thread is worth reading in full; the owners in it disagree with each other, which is what makes it honest.

In a February 2026 thread, someone who'd interviewed around 200 service-business owners relayed an HVAC owner who tracked his missed calls for a month and put the lost revenue at over $8,000. That's second-hand, so treat it as one shop's month, not an average. Source.

What vendors publish, and what to make of it

These figures come from companies that sell call answering. That doesn't make them false. It means they're the high end of what's plausible, and none of them is your shop.

• CallJolt, which sells missed-call text-back, publishes annual missed-call losses for plumbing of $18,000 to $234,000 and for HVAC of $45,000 to $252,000. The range is so wide it mostly tells you the number depends on the shop. Source.
• RingCrew, an AI answering product, states on its site that 62% of calls to local businesses go unanswered, that 80% of callers who reach voicemail won't leave a message, and that the average business loses $156,000 a year to missed calls. It doesn't cite where those come from, so I'd use them as a ceiling, not a fact. Source.

When independent figures with a traceable source exist for these trades, they'll go on this page and replace the vendor ones. Until then the honest position is: the published numbers are high-end estimates from interested parties, your own call log is the truth, and the calculator uses only what you give it.

The two things that matter more than the average

First, who the after-hours caller is. Someone dialing a plumber at 9pm with water on the floor is not shopping. They need help now, and they will book whoever answers. That call is worth more than your average job, and it's the one most likely to go to the next name on the list.

Second, what happens when they get voicemail. In the December thread, 90% didn't leave one. A missed call isn't a delayed job. Most of the time it's a job that went to someone else, and you never knew it existed.

Run your own numbers in the calculator. If they're small, you don't need an answering service. If they're not, let's talk about it.