Blog · September 28, 2026 · 6 min read
How much do missed calls cost a contractor? (With a simple formula)
Short answer
Missed calls cost a contractor roughly: (leads missed per week) × (share that would have booked) × (average job value) × 4.3 weeks. A contractor who misses 5 leads a week on $350 jobs, where 40% would have booked, is losing about $3,000 a month in revenue — before counting repeat work and referrals from those customers.
The missed-call formula
Most owner-operators know they miss calls. Few put a number on it. The math only needs three inputs you already know or can estimate in a week:
- Leads missed per week — calls, texts, and web or Facebook messages you didn't answer within a few minutes.
- Book rate — the share of leads you normally turn into jobs when you do answer fast. 30–50% is common for inbound home-service leads.
- Average job value — your average first-ticket invoice.
Worked examples by trade
Monthly lost revenue = missed per week × book rate × job value × 4.3. Here's what that looks like with conservative numbers:
- House cleaner: 4 missed × 40% × $180 = about $1,240/month.
- Electrician: 5 missed × 40% × $350 = about $3,010/month.
- Plumber: 6 missed × 40% × $450 = about $4,640/month.
- HVAC: 4 missed × 40% × $900 = about $6,190/month.
Why the real number is higher
The formula only counts the first job. A lost customer also takes their repeat work, maintenance plans, and referrals to whoever did answer. For recurring services like cleaning or lawn care, one missed lead can be worth thousands a year.
It also ignores the cost of chasing leads later: callbacks to voicemail, texts that never get a reply, and quotes sent after the customer already booked someone else.
How to find your own missed-lead count
For one week, check your phone's recent calls for missed calls from unknown numbers, count unanswered texts older than 15 minutes, and count web or Facebook messages you replied to more than an hour later. That total is your weekly missed-lead number.
What to do about it
The fix is speed, not more marketing. Options range from hiring an office person, to an answering service that takes messages, to an AI agent that replies to every lead in seconds and books the job. ServiceHQ's calculator on our homepage runs this same formula with your numbers.
Stop missing leads while you're on the job.
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Frequently asked questions
What percentage of calls do contractors miss?
It varies widely by trade and crew size, but solo operators who work with their hands commonly miss a large share of calls during jobs. Count one week of your own missed calls, texts, and messages to get a reliable number for your business.
Do customers call back if a contractor misses their call?
Many don't. A homeowner with an urgent problem usually calls the next business on the list, so the first contractor to respond often wins the job.