Revenue Leak Calculator

What are missed calls and slow follow-up actually costing your business?

Most “missed call cost calculators” stop at one number. This revenue leak calculator maps the full picture — missed calls, after-hours gaps, and follow-up failures — specific to your industry, and uses your own numbers for call volume and real cost per lost opportunity.

62%

of unanswered callers call a competitor immediately

411 Locals

85%

of callers who reach voicemail hang up without leaving a message

PATLive / Invoca

21×

more likely to convert when you respond within 5 minutes

MIT / InsideSales.com

Run the Revenue Leak Calculator for your business.

Adjust the sliders to match your business. The results update in real time.

Select your industry

Monthly inbound calls200

Your average miss rate27%

Your close rate on answered calls30%

Average job value ($)$1,200

After-hours call percentage40%

Estimated monthly revenue leak from missed calls

That’s $0 per year

Additional after-hours revenue at risk

$0/mo

Total estimated annual revenue leak

from missed calls and after-hours gaps alone

These are estimates based on industry averages. Want to see your actual numbers?

Book Your Free Revenue Leak Audit →

Or call David directly: (970) 508-9555

Calculation based on published industry research: Invoca 2025, PATLive, MIT/InsideSales.com, 411 Locals, ServiceTitan, consumer review research, ACHR News, PCN 2026 Small Business Missed Call Revenue Study.

This estimate is conservative. Here’s what it doesn’t count.

The Revenue Leak Calculator measures one thing: revenue lost to unanswered phone calls. That’s the most visible leak — but it’s rarely the only one. Most service businesses have four or five gaps running at the same time. For the full picture, read how AI can help your service business grow.

⏱️

Slow follow-up on estimates and quotes

Industry data shows 50% of estimates are never followed up. The customer didn’t say no — nobody asked again. For a business sending 20 estimates a month, that’s 10 potential jobs sitting in silence.

⭐

The review gap

97% of consumers read reviews before choosing a local business. Only 5% of businesses consistently ask for them. If your review count is low or your rating is below 4.5 stars, you’re losing customers before they ever call. (consumer review research, Upfirst 2025)

💸

Uncollected invoices and late payments

Slow invoicing and inconsistent follow-up extend average collection time by 15–30 days for most small businesses. Automated reminders recover revenue that would otherwise age into write-offs.

🔄

Customers who never came back

Acquiring a new customer costs 5–7× more than retaining an existing one. Without recall campaigns and rebooking reminders, your best customers quietly drift to whoever reaches out first.

How this missed call cost calculator works

The calculator applies your industry’s documented average miss rate to your monthly call volume. For example, HVAC contractors miss approximately 27% of inbound calls on average (Invoca). Of the calls that go to voicemail, 85% of callers hang up without leaving a message (PATLive). Those missed calls are multiplied by your close rate and average job value to estimate the revenue that left before anyone could answer.

After-hours estimates apply an additional factor: 35–50% of service calls come outside business hours (ServiceTitan, via PCN 2026 Study), and after-hours calls frequently carry higher urgency — and higher job values — than daytime calls.

The total this revenue leak calculator provides is a floor, not a ceiling. It doesn’t include website inquiry response gaps, reputation losses, estimate follow-up failures, or customer attrition.

Data sources: Invoca 2025, PATLive, MIT/InsideSales.com, 411 Locals, ServiceTitan, HomeAdvisor, consumer review research, ACHR News, PCN 2026 Small Business Missed Call Revenue Study, Contractor Magazine, IBISWorld, ADA, PatientPop, Clio Legal Trends Report.

These are estimates. Your real numbers could be higher.

The Revenue Leak Audit maps the actual gaps in your operation — not estimates, but specific leaks in your call handling, response time, review process, and follow-up systems. It’s free, it takes about 15 minutes, and David walks you through exactly where the money is going and what closing each gap is worth.

Book Your Free Revenue Leak Audit →

Or call David directly: (970) 508-9555 · Durango, CO

What are missed calls and slow follow-up actually costing your business?

Run the Revenue Leak Calculator for your business.

This estimate is conservative. Here’s what it doesn’t count.

Slow follow-up on estimates and quotes

The review gap

Uncollected invoices and late payments

Customers who never came back

How this missed call cost calculator works

These are estimates. Your real numbers could be higher.

Related guides

What a Missed Call Actually Costs Your Business

After-Hours Calls — The Revenue Window Most Businesses Ignore

What AI Answering Actually Means for a Service Business