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Missed-Call Revenue Calculator for Contractors

Calculate how much revenue your home-service business loses every year to calls that go unanswered, and the return on an AI receptionist that answers 100% of them 24/7. Adjust your monthly calls, the percentage you miss, your average job value and your close rate, and see the revenue lost per month and per year, the net profit with AI, and the ROI. A transparent model with no inflated numbers: the response-speed effect is backed by Harvard research.

Your numbers
200

Estimate the total prospective-customer calls you receive.

25 %
$

What you invoice on average per closed job.

40 %

Conversion rate from answered call to booked job.

$

Fee for the service that answers 100% of calls 24/7.

What not answering costs you
Revenue lost per year$84,000from calls that never get answered
Jobs lost/month20
Lost/month$7,000
AI cost/month$250
Net profit/month$6,750
Return (ROI)28.0x
Recoverable with AI100% answered · $7,000
Service cost$250

Directional model. The AI recovers at most the calls you miss today; real results depend on your volume, ticket and close rate. Response-speed effect source: Harvard Business Review (2011).

How it works

The missed call is the quietest revenue leak in home services. It shows up on no invoice, triggers no complaint, and is still probably the most expensive hole in your business. When a pipe bursts at eleven at night, the customer grabs their phone, calls, and if you do not answer, calls the next company. That call does not come back.

This calculator puts a number on that hole. Adjust your figures above and watch, in real time, how much you leave on the table every month and every year.

How to read the results

  • Revenue lost per year is the headline figure: the money that walks out the door through calls that never get answered, projected over twelve months.
  • Jobs lost/month translates that loss into something tangible: how many jobs you fail to book each month.
  • Net profit/month already subtracts the AI receptionist cost. If it is positive, the service pays for itself.
  • Return (ROI) is how many times your AI investment is multiplied by the revenue you recover.

Response speed is not an opinion

The effect of responding fast has been measured. Harvard Business Review research across thousands of leads found that contacting a prospect within the first five minutes makes you 100 times more likely to reach them and 21 times more likely to qualify them than waiting thirty minutes. For home emergencies the window is even shorter: the customer is calling two or three companies at once and books the first one that picks up.

What to do with the number

If the annual figure surprised you, the next step is not to buy technology blindly but to understand why calls are lost: hours, simultaneity, after-hours coverage. The conversion page and the 5-minute rule guide explain how to close that leak. To see the cost with your real data on the table, talk to us.

Also compare an AI receptionist against a human call center before you decide.

Real benchmarks

The data behind the defaults

Every default value is anchored to a verifiable industry source.

100x
More likely to reach a lead when you respond within 5 minutes vs after 30
Source: Harvard Business Review (Oldroyd et al., 2011)
21x
More likely to qualify that lead within the same 5-minute window
Source: Harvard Business Review (Oldroyd et al., 2011)
We answer before you ask

Questions about this tool

The real questions we get about how to read these numbers.

Direct help

Question not listed here?

Thirty minutes by video or phone. No jargon. The team answers with data from your business on the table.

Talk to the team
  1. Q/01How does the tool calculate the money I lose to missed calls?

    It multiplies your monthly inbound calls by the percentage you miss to get missed calls. Those missed calls are multiplied by your close rate (how many answered calls would become jobs) to estimate jobs lost, and those jobs by your average job value to reach revenue lost per month. The annual figure is that number times twelve. It is a directional model: it assumes a missed call would have closed at the same rate as an answered one, so use a realistic close rate.

    Sources & resources
  2. Q/02Why does an AI receptionist recover those calls?

    An AI receptionist answers 100% of calls instantly, 24 hours a day, even when you are on a job, after hours, or fielding several calls at once. It captures the name, address and job type and books or routes the emergency. Because most of the loss comes from calls that go unanswered today, answering all of them recovers the slice of revenue currently going to a competitor. The tool conservatively assumes the AI recovers at most what you lose today.

    Sources & resources
  3. Q/03What close rate should I use if I do not know mine?

    For high-intent home services (emergency plumbing, electrical, HVAC), the conversion from answered call to booked job typically sits between 30% and 50%. If you do not track it, start at 40% and adjust from experience. Honesty matters: an inflated rate exaggerates the loss. To measure it properly, log how many calls you answer and how many become jobs over two weeks.

  4. Q/04Is the AI receptionist cost included in the ROI calculation?

    Yes. The monthly net profit subtracts the AI service cost from the recoverable revenue, and ROI is recoverable revenue divided by cost. That is why the monthly cost field is editable: enter the real fee from the provider you are evaluating. If net profit is positive, the service pays for itself on the calls you miss today alone.

  5. Q/05Are these figures a promise of results?

    No. It is a directional model to size the problem, not a guarantee. Real results depend on your call volume, average ticket, close rate, and how many missed calls were genuinely opportunities. The value of the tool is giving you an order of magnitude to decide whether the missed-call problem is worth fixing.

    Sources & resources
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