What are missed calls costing you?

Your numbers

HVAC starting values: swap in your own

Start from an industry

Defaults are conservative and sourced where a usable source exists. Where none does, they are marked as our estimate. Each field shows where its default comes from.

Inbound calls in a normal week

All calls to your business number, answered or not. Your phone system or carrier portal shows this.

HVAC default 60: MoxiSync estimate. Example volume of 60 inbound calls a week for a small, owner-led business. Replace it with your own phone log.

Share of calls that go unanswered

Rang out, went to voicemail or hung up waiting, including after hours.

= 16.2 missed calls a week

HVAC default 27%: Invoca (2022), as cited by The Open University's OpenLearn Create. Around 27% of calls to home-service companies go unanswered. Vendor-sourced; we use it as stated rather than the higher 62% figure often repeated online.

Missed callers who are new customers

Leave out existing customers, suppliers, sales calls and wrong numbers.

HVAC default 45%: MoxiSync estimate. Under half of missed calls are new customers; the rest are existing customers, suppliers and sales calls.

Of those, how many never reach you again

They don't call back, or they book someone else.

HVAC default 50%: MoxiSync estimate. Half of missed new callers never reach you again. Lower than the ~85% 'don't call back after voicemail' figure attributed to Dialzara (2023), because we could not verify that study.

Your booking rate on new enquiries

Of new callers you do speak to, how many become a booked job or appointment.

HVAC default 50%: MoxiSync estimate. Half of new repair enquiries you speak to become a booked job.

Average value of a first job

Typical first-job or first-visit revenue, before any repeat work.

HVAC default $350: Angi / HomeAdvisor HVAC repair cost guide (2025 data). National average HVAC repair of about $350 (typical range $100–$3,000). Uses a repair, not a system replacement, so it stays conservative.

Estimated revenue at risk from missed calls

$33,170a year

$2,764 a month · about 94.8 repair calls a year

What if you answered 80% of the calls you miss today?

You would keep$26,536about 75.8 repair calls a year

Still at risk$6,634a year

Assumes an answered caller books at your usual rate of 50%.

How this is worked out

60 calls a week × 27% missed × 52 ÷ 1270.2 a month
× 45% new customers31.6
× 50% who never reach you again15.8
× 50% you would normally book7.9 repair calls
× $350 average first job$2,764 / month
× 12 months$33,170 / year
× 80% answered (scenario)$26,536 kept

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An estimate from the numbers above. It is not a forecast or a promise that any revenue can be recovered. Your figures stay in this browser unless you copy the link.