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HVAC Missed Call & Booking Rate Revenue Calculator

Every call nobody picks up is a customer who may dial the next shop on the list. Put in your own call numbers to see what missed calls cost you in jobs and dollars, and what a better booking rate on the calls you do answer would be worth.

Runs in your browser — nothing you type is sent anywhere

Example numbers — replace with yours. The starting values are placeholders so the form isn't empty. They are not industry averages or benchmarks.

Your calls

Your assumptions

Results

Missed calls —
Jobs lost per week —
Jobs lost per month —
Jobs lost per year —
Revenue lost per year to missed calls —
Extra jobs from a higher booking rate —
Revenue gained per year from a higher booking rate —

The math

—

How it works

  • Missed calls = calls per week × % missed.
  • Callers lost = missed calls × % who call a competitor instead.
  • Jobs lost = callers lost × your booking rate. We assume a lost caller would have booked at the same rate as the calls you do answer.
  • Per month and year: jobs per week × 52 weeks, and that ÷ 12 for a month.
  • Revenue lost = jobs lost per year × average ticket.
  • Booking-rate gain = answered calls × the points you add × 52 weeks × average ticket. It only counts calls you already answer, so it stacks on top of fixing missed calls.

Where to get your numbers

  • Calls and missed calls: your phone system, VoIP provider, or call tracking report. Count after-hours and lunch-hour calls too — that's often where they go missing.
  • Booking rate: jobs booked from phone calls ÷ calls answered, for the same week or month. Your field service software's job list and the phone log are enough.
  • Average ticket: revenue ÷ jobs for the same period.
  • Who calls a competitor: nobody can see this for sure. Try a low and a high guess and see how much the answer moves.

We don't quote typical missed-call or booking rates here because we haven't found a solid public source for them. That's what the anonymous Owner Numbers survey collects, so owners can compare against real peers.

Things this leaves out

  • Lifetime value. A new customer you keep may come back for years or join your maintenance plan. This counts only the one job.
  • Cost to fix it. An answering service, an extra CSR, or call-handling training costs money. Compare that cost to the revenue here.
  • Profit vs revenue. These are revenue numbers. Multiply by your gross margin to see the profit.
  • Spam and wrong numbers. Leave those out of your call count.

For scripts and a plan to answer more calls and book more of them, read the guide HVAC call booking rate and CSR guide.

Related tools

Paying for the calls you're missing? The HVAC marketing ROI calculator shows what each lead and new customer costs you. Setting a revenue target? The HVAC revenue goal calculator turns it into jobs and calls per day. More booked jobs means more hours on the trucks — the HVAC technician capacity calculator shows whether your team can handle them.

Once calls are booked, how many turn into sold jobs? The HVAC sales funnel & close rate calculator follows leads through booking, run, and close rates to revenue and gross profit.