Most contractors don't know. Let's find out.
Here's what published research says about contractors and missed calls.
Example scenarios using the same math as the calculator above. Adjust the numbers to match your business.

Your customers don't leave voicemails. They call the next contractor on Google.

Based on your numbers, you're leaving $57,600/year on the table from missed calls alone.
Even capturing a fraction of those calls changes your business. What would an extra $2,400/month mean for you?
Estimates based on the numbers you provided — actual results vary.