How accurate is the missed-call cost estimate?

It is a directional estimate, not an audit. The math multiplies your missed calls by the share that would have converted and your average ticket. The inputs are yours (miss rate, call volume, average ticket, and answered-vs-voicemail conversion) so the closer those are to reality, the closer the number. Most service businesses are surprised it is conservative.

What is the typical missed-call rate for service businesses?

Most service businesses miss 30 to 40% of inbound calls, during jobs, after hours, at lunch, and when two calls come in at once. The owner usually believes the number is far lower than it is, because missed calls leave no trace unless something is tracking them.

Do I actually lose a customer when I miss their call?

Usually yes. Studies of service-industry callers find that the majority do not leave a voicemail and instead call the next business on the list. A missed call is rarely a deferred customer; it is a customer who just became your competitor's customer.

What does it cost to stop losing those calls?

The CRM is $200/mo: missed-call text-back automation and the Ava voice agent are included. AI features (texts, call minutes, follow-ups) are billed by usage, so you only pay for what you actually use. No setup fee, no flat add-on prices.

How does Ava recover a missed call?

Ava answers calls you would otherwise miss: after hours, during jobs, or when the line is busy. She greets the caller in your business's voice, answers common questions, qualifies the lead, books an appointment on your calendar, and texts the caller a confirmation. You wake up to booked jobs instead of a voicemail box. Try it live: call (877) 542-4335.

How much do missed calls cost your business?

78% of callers won’t leave voicemail. They hang up and call the next business in their search results. Most owners have no idea what that costs them every month, until they do the math.

Plug in your numbers below. The math runs live.

Industry

Average ticket ($)

Calls per week

Estimated miss rate25%

Industry average for Other: ~25%

Conversion rate of answered calls60%

How often answered calls turn into customers

Voicemail-to-callback conversion8%

Voicemails that result in a closed deal

Revenue lost per year

$40,560

That’s what missed calls are costing you in unrecovered revenue every year, after subtracting voicemail callbacks.

Lost per month$3,377

Lost per week$780

Recoverable with WebDevAuto

$32,448

Assumes 80% of missed calls captured by AI receptionist + missed-call automation

Less WebDevAuto annual cost−$2,400

Net gain per year+$30,048

WebDevAuto annual cost reflects the CRM ($200/mo), which carries Ava and missed-call automation; AI call minutes are billed by usage.

Estimates are illustrative only, based on the inputs you provide and an assumed 80% missed-call capture rate from industry averages. Actual results depend on your market, offer, staffing, and execution, and are not a guarantee or projection of revenue.

Stop the leak: get Ava answering every call

30-minute call with a founder. We’ll map what to fix first, no charge.

How the calculator works

The math is straightforward, and deliberately conservative.

We assume only the net lost revenue: what you would have closed minus what voicemail callbacks recover. So the calculator is conservative; the actual loss is usually higher because:

Missed-call customers often become 1-star reviews even if you do call them back
The customers you miss most are the highest-urgency ones (emergencies, after-hours)
Voicemail-to-callback conversion drops sharply in verticals where speed matters (HVAC emergency, legal intake, urgent dental)

For the “recovery” calculation, we assume 80% of currently-missed calls would be captured by an AI receptionist + missed-call SMS. This matches our internal data; some verticals see closer to 90-95%, some closer to 70%, depending on call patterns.

What to do with your number

The math doesn’t lie. Most small-business owners are surprised by their number, in a bad way. That’s the point of running the calculator: make the invisible leak visible, so you can decide what to do about it.

▸Under $20,000: the math may not justify the full stack yet. Start with just the Website ($150/mo) to fix the most obvious gap first.
▸$20,000 to $50,000: the CRM at $200/mo (Ava answers every call, missed-call SMS fires in 30 seconds) pays for itself in roughly 1 to 2 months of recovered calls. AI usage billed on what you use.
▸$50,000 to $100,000: add SEO ($300/mo) to compound the recovery: more inbound calls means more calls Ava can save. Or talk to us about a Custom App build.
▸Over $100,000: multi-location custom is worth a conversation. Talk to us.

Two ways to start

Engineering Diagnostic

We'll review your current site, identify the conversion leaks, and email you a 30+ point report.

Sources

1.CallbirdAI: Why contractors lose money on missed calls (1,200+ contractor study; 78% caller voicemail-avoidance behavior; $45-120K annual loss range) (https://www.callbirdai.com/blog-contractors-lose-money-missed-calls)
2.SalesCaptain: Missed call text-back for HVAC companies (27% miss rate; 31% after-hours emergency call data) (https://blog.salescaptain.com/missed-call-text-back-for-hvac-companies-2025/)