Missed call math
How much do missed calls cost an HVAC company?
The cost is the jobs you never got the chance to quote. Here is how to put a number on it for your own shop.
What do missed calls actually cost?
The cost is the value of the jobs those callers would have booked. You estimate it by multiplying your missed calls by the share that turn into a booked job and by your average job value. Industry research says 27% of calls to home service businesses go unanswered, and fewer than 3% of callers leave a voicemail.
What do the numbers say about missed calls?
Three sourced figures frame the problem. 27% of calls to home service businesses go unanswered, fewer than 3% of callers leave a voicemail, and 82% of people call a competitor after a missed call. Together they suggest a missed call rarely comes back on its own. The caller tries someone else.
How do you estimate revenue lost to missed calls?
Start with how many calls you miss, then apply the share that would have booked, then multiply by what a job is worth. It is three inputs and one formula. Use your own phone records for calls and your own books for job value, and treat the result as an estimate, not a promise.
The formula
missed calls per week × booking rate × average job value = lost revenue per week
1. Missed calls per week
Calls to your shop per week × the share that go unanswered. The industry figure to start from is 27%, from HiGrovi, 2026 Contractor Missed Call Report.
2. Booking rate
Of the calls you do answer, the share that turn into a booked job. Your own history is the best source for this.
3. Average job value
What a typical job brings in. Use the average across your real invoices, not your best month.
What does the arithmetic look like with real numbers?
Take a shop that gets 40 calls a week and misses 27% of them. That is 10.8 missed calls a week. If 30% would have booked, that is 3.24 jobs, and at $600 a job it comes to about $1,944 a week.
- Calls per week × unanswered share
- 40 × 27% = 10.8
- Missed calls × booking rate
- 10.8 × 30% = 3.24 jobs
- Jobs × average job value
- 3.24 × $600 = $1,944
- Job value at stake per week
- $1,944
Example inputs only. They are the calculator's starting values, not a benchmark for your shop. Replace them with your own numbers below.
Why do missed calls turn into lost jobs?
Because callers rarely wait. Fewer than 3% leave a voicemail, and 82% of people call a competitor after a missed call (Quo, Small Business Callback Statistics). A caller who gets no reply moves on to the next shop on the list, so the job tends to go to whoever answers first.
What do my missed calls add up to?
Enter your shop's calls per week, the share that go unanswered, your booking rate and your average job value. The calculator shows missed calls and the job value at stake each month. It is the same calculation we run with you on a 20 minute call.
27% is the industry average for home service businesses (HiGrovi, 2026). Move the sliders to your shop's real numbers.
27%calls unanswered
- Missed calls / month
- 47
- Jobs at stake / month
- 14
- Job value at stake / month
- $8,424
An estimate from the numbers you entered, not a guarantee. Results depend on your call volume and how fast you answer replies.
How does text back reduce the cost of missed calls?
When a call is missed, the caller gets a text back within seconds and you get an alert with who called and what they replied. A follow up sequence then keeps working the lead until it books. It cannot guarantee jobs, since results depend on your call volume and how fast you answer replies.
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