Voice AIROI
ROI6 min readUpdated 2026-05-09

How Much Money Are You Losing to Missed Calls?

The average local service business misses 35–40% of inbound calls. Most owners know it's a problem. Few know what it actually costs. Using published research on local-business call handling and the math below, here's how to put a dollar figure on the gap.

The miss rate is higher than you think

Before installing their AI receptionist, our customers averaged a **38% miss rate** on inbound calls. That means nearly 4 in 10 calls went to voicemail — or rang out. When was that? Most often: • During a job (hands dirty, can't pick up) • During appointments (dentist, medspa, salon) • During peak volume (3–6 PM, Monday mornings) • After hours (6 PM–8 AM, weekends) Voicemail conversion rate: approximately 20–25% of voicemail callers leave a message. Of those, about 40% reach a human before booking elsewhere.

What a missed call actually costs by industry

These are median ticket values based on our customer data, not estimates:
Industry / call typeAvg ticket valueCost per missed call (38% × 70% close)
Plumbing (emergency)$2,500$950
Plumbing (service call)$380$152
HVAC (installation)$8,200$3,116
HVAC (service call)$290$110
Dental (new patient)$1,800/yr LTV$684
Auto repair$620$236
Law firm (consult)$3,500+$1,330+
Hair salon (new client)$85/visit$32

The math for a plumbing business

Take a 2-truck plumbing operation getting 60 calls per month: • **60 calls/mo × 38% miss rate = 23 missed calls/month** • Of those 23, ~17 were booking calls (70% of total volume) • Average ticket: $600 (blended service + emergency) • Conversion rate if answered: 65% **17 missed booking calls × 65% close rate × $600 = $6,630/month in lost revenue** At $99/month, the AI receptionist has a **67× ROI** on prevented missed calls alone — and that's before counting reviews, repeat business, or referrals from satisfied customers who got through.

The Saturday 9 AM problem

The highest-value missed calls happen Saturday mornings. Customers who woke up with an emergency (burst pipe, A/C dead in summer, car won't start before a trip) are highly motivated buyers. Most service businesses answer Saturday morning at 60–70% capacity. The ones at 100% capacity — because their AI answers everything — win a disproportionate share of weekend revenue. Businesses that answer every weekend call — instead of the typical 60–70% — win a disproportionate share of that high-intent revenue.

Calculate your own number

**Step 1:** Estimate your monthly call volume (check your phone's call log for the last 30 days). **Step 2:** Estimate your miss rate. If you're typically on jobs 4–6 hours/day, assume 35–45%. **Step 3:** Multiply missed calls × average ticket × close rate. **Example:** 80 calls/mo × 38% miss = 30 missed × $800 average × 60% close = **$14,400/month**. That's the upper bound of recoverable revenue. In practice, half of missed callers call a competitor. The realistic capture is 50–60% of that number — still $7,200–8,640/month. Vs. $99/mo to fix it.

Stop losing $5,000–$15,000/month to missed calls

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