How Much Do Missed Calls Cost Your Business? The Math for Contractors

July 26, 2026 · ← Back to Blog

Most contractors know they miss calls. What they don't know is the dollar amount attached to those missed calls. We ran the numbers across five trades — and the results explain why some shops are leaving serious money on the table.

The formula

Here's the basic math behind every missed call:

The variables change by trade, but the pattern holds across every service business. Let's break it down trade by trade.

Plumbers

Variable	Value
Missed calls per day	4–6
Hang-up rate (no voicemail)	80%
Lead-to-job conversion	33%
Average job ticket	$450
Daily lost revenue	$475–$713
Monthly lost revenue	$9,975–$14,973
Annual lost revenue	$119,700–$179,676

Plumbers take the biggest hit because emergency calls spike after hours — exactly when voicemail is most likely to be on. A single missed burst-pipe call at 2 AM can be $2,000+ in emergency repair work.

HVAC Contractors

Variable	Value
Missed calls per day	3–5
Hang-up rate	80%
Conversion	30%
Average ticket	$650
Daily lost revenue	$468–$780
Annual lost revenue	$117,936–$196,560

HVAC has higher tickets and extreme seasonality. In July and January, missed call volume doubles — and so do the losses. The contractor who answers every call during peak season dominates their market.

Electricians

Variable	Value
Missed calls per day	3–4
Hang-up rate	80%
Conversion	35%
Average ticket	$380
Daily lost revenue	$319–$426
Annual lost revenue	$80,472–$107,296

Electrical emergencies are safety issues — sparking outlets, burning smells, power outages. These callers are highly motivated and will call the first electrician who answers. If it's not you, they're gone in 60 seconds.

Roofers

Variable	Value
Missed calls per day	2–4
Hang-up rate	80%
Conversion	25%
Average ticket	$1,200
Daily lost revenue	$480–$960
Annual lost revenue	$120,960–$241,920

Roofers have the highest average tickets, which makes every missed call disproportionately expensive. A single missed storm-damage call is potentially a $15,000 insurance replacement job walking to a competitor.

Garage Door Companies

Variable	Value
Missed calls per day	2–3
Hang-up rate	80%
Conversion	40%
Average ticket	$350
Daily lost revenue	$224–$336
Annual lost revenue	$56,448–$84,672

Garage door calls are often urgent — door stuck open, car trapped inside, security risk. Homeowners don't leave voicemails when their car is stuck in the garage at 7 AM.

The hidden cost: customer lifetime value

The numbers above only count the first job from each lost lead. They don't account for:

• Repeat business: A customer who calls you for a water heater today will call you when the toilet backs up next year.
• Referrals: Happy customers send neighbors and family your way. One lost customer can cascade into 3–5 lost referrals over time.
• Emergency premium pricing: After-hours emergency calls often command 1.5×–2× rates. These are the calls voicemail loses most reliably.

When you factor in lifetime value, the true cost of missed calls can be 2–3× higher than the first-job math suggests.

What it costs to fix the problem

Compare the annual lost revenue to the cost of a solution:

Solution	Monthly Cost	Annual Cost
Voicemail (status quo)	$0	$0 (+ $56K–$242K in lost revenue)
AI answering (Call Den)	$79–$149	$1,164–$2,364
Answering service	$250–$500	$3,000–$6,000
Full-time receptionist	$3,000+	$36,000+

The cheapest option (voicemail) is actually the most expensive when you factor in lost revenue. The AI answering option costs less than one average job per month — and captures the revenue voicemail leaves on the table.

The bottom line

Missed calls aren't a minor annoyance. They're a six-figure revenue leak for most contractors. The math is straightforward: capture 2–3 more calls per day, book 1 more job, and the solution pays for itself 10× over.