hank.tools · calculator
How it worksWhy Hank
Free tool · for trade shop owners

See what voicemail is costing your shop.

Pick your trade and how many trucks you run. We’ll show you what missed calls are quietly costing you every month — using industry-typical numbers you can challenge below.

Hank dashboard showing jobs booked, calls caught, voicemails handled
What your dashboard looks like in 30 days.
Inputs
1
Assuming 5 calls/day, 30% miss rate, 25% of missed calls become a lost job, $339 per booked job.
Revenue you're likely losing every month to voicemail
$3,303
That's $763/week, $39,632/year. Industry-typical estimate — your real number depends on your actual miss rate and job mix.
Calls / month
130
30 per week
Missed / month
39
30% of inbound
Jobs lost / month
10
25% of missed
Peak week — cold-snap weeks (frozen pipes)
$1,144
What a single peak week costs at 1.5× normal volume.
Founder-led early access

Catch the calls. Keep the $3,303 a month.

Hank answers every call with a flat monthly rate — no per-minute fees, no per-call billing, no spam charges. Onboarding the first 25 trade shops now.

From the field

Real contractors. Real numbers.

Pulled from public trade-forum threads. The numbers above are calibrated against what shop owners actually say.

I'm running a small residential plumbing operation (me + 2 guys) and we're constantly missing calls when we're on jobs. Last month I had 47 missed calls. Maybe 5 left voicemail… This is probably costing me $3-4K/month in lost work.
tdorsey · plumber, 3-person shop
The calculator estimates ~$3,300/mo lost for a solo plumber at 30% miss rate. His self-reported number matches.
Before you spend money on a solution, figure out what those 47 calls actually are. 40 of them were telemarketers. 5 were customers that have used my services before. 2 were price shopping. There ya go, 47 calls.
TerryTotoSucks · plumber, replying in same thread
Exactly why we use 25% as the lost-job rate — most missed calls aren't real lost jobs.
[Another vet wrote: 'In all those years I have missed a handful of calls.'] FIFY: 'In all those years I have missed a handful of calls THAT I KNOW OF.'
rewire · electrician, 36-yr emergency service
Callers who hang up without voicemail leave no trace. Your real miss rate is usually higher than you think.
How the math works

Conservative defaults. Real sources.

  • Lost revenue = calls/day × days/week × % missed × % of missed calls that become a lost job × avg booked job value. We default that last number to 25%, derived from public call-tracking studies: ~55% of missed calls are real new-customer leads (ServiceDirect), ~63% would book if answered, and ~82.5% of callers who hit voicemail never call back (CallRail / AnswerConnect). 0.55 × 0.63 × 0.825 ≈ 28.6% — we round down to 25%.
  • Miss rate of 30%matches the audited ServiceDirect home-services dataset (34% missed across 42 categories) and Invoca’s 2024 platform data (27% unanswered). Higher numbers you’ve seen on LinkedIn (“62%”) come from a blog chain with no primary source — we don’t use them.
  • Trade call volume is derived from booked jobs per month for shops your size, run backwards through the industry call-to-book rate (~23%). A solo plumber works out to ~5 inbound calls per business day; each extra truck adds 3–4. Phone overhead is shared, so the per-truck rate is sub-linear.
  • Avg job value uses Angi’s national-average numbers— $339 plumber, $350 HVAC repair, $350 electrician, $1,170 roof repair, $700 landscaping. These are deliberately conservative. If your shop does more installs (water heaters, full HVAC swaps, roof replacements), tweak the avg-job slider upward — that’s what the “tweak the numbers” panel is for.
  • Peak-week multiplier reflects what shop owners actually report. A storm-chasing roofer on RoofersCoffeeShop describes averaging 200 calls/day in disaster-aftermath weeks; another took 17 calls Tuesday + 26 Wednesdayin heavy rains. That’s why we use 5× for roofers and lower multipliers for trades with smaller seasonal swings.
  • Sources: ServiceDirect Call Performance Report, Invoca home-services call data, Angi cost guides (plumbing, HVAC, electrical, roofing, landscaping).