How Much Do Missed Calls Cost a Home-Service Business?
A missed call costs you whatever a booked job is worth — so the math is simple: missed calls per week, times your average job value, times the share you'd actually book. Using Navon's illustrative assumption that roughly 1 in 3 rescued calls turns into a booked job, a shop that misses 10 calls a week at a $400 average job value is leaving about $1,333 a week, or roughly $69,000 a year, on the table — because when a customer's call goes to voicemail, they often dial the next competitor within about 90 seconds.
The one-line formula: missed calls x job value x booking rate
You don't need a study to price a missed call — you need three of your own numbers. Take the number of calls you miss in a typical week, multiply by your average job value, then multiply by the share of those callers you'd realistically book if you actually answered. That last number is the honest one: not every missed caller becomes a paying job. Navon assumes roughly 1 in 3 rescued calls converts to a booked job. We label that as illustrative — your real rate depends on your trade, your pricing, and how fast you respond.
The formula: (missed calls per week) x (average job value) x (~1 in 3) = lost revenue per week. Multiply by 52 for the annual figure. Most owners are surprised, because missed calls don't show up on any report — there's no invoice for the job you never knew existed.
A worked example you can copy
Say you run a plumbing shop and you miss 10 calls in a normal week — some after hours, some while you're under a sink with your hands full, some during a Monday-morning rush you couldn't get to. Your average job is worth $400.
Run the math: 10 missed calls x $400 x (1 in 3 booked) = about $1,333 in lost revenue every week. Over a year that's roughly $69,000. Now plug in your own numbers. A roofer with a $6,000 average job who misses just 3 calls a week is looking at about $6,000 a week of exposure on that line alone. The bigger your average ticket, the more a single unanswered call hurts.
Two honest caveats. First, the 1-in-3 figure is an assumption, not a measured guarantee — treat it as a planning number, not a promise. Second, some missed callers would have reached you on a callback anyway. But that's exactly the problem: a missed caller often dials the next competitor within about 90 seconds, long before your callback goes out.
Why a missed call is usually a lost job, not a delayed one
When someone's water heater is leaking or their AC died in July, they aren't leaving a voicemail and waiting. They're scrolling to the next name on the list and calling again. Voicemail, a generic missed-call app that just logs the number, or even a traditional answering service that takes a message and emails it later — none of those get the customer an answer in the moment they decide who to hire.
Speed is the whole game. The customer who hears back in seconds, by name, is the customer you keep. The one who hears a voicemail beep is often already gone.
What it costs to stop missing them
Set the lost-revenue number next to the cost of fixing it. Navon's entry tier, Lead Rescue, is $150/mo plus a $500 one-time setup: every unanswered call gets an instant, branded text-back in your own voice, routed to you, live in about 7 days. In the plumbing example above, that's $150 a month against roughly $5,700 a month of exposure.
If you want the system to also answer questions and book jobs without you, Lead Engine ($400/mo + $1,500 setup) adds an AI chatbot on your website and WhatsApp that handles FAQs and books straight to your calendar 24/7. Front Desk AI ($750/mo + $3,000 setup) adds an AI voice agent that answers and qualifies inbound calls so no caller ever hits voicemail, with a full call summary after every booking.
Navon is 100% inbound — it only ever responds after a customer contacts you first. It never cold-calls, blasts, or buys lists. It runs on your existing phone number with no porting, no new line, and no new hardware, and it's fully done-for-you: Navon sets it up, writes the messages in your voice, and tunes it. The Never-Miss-a-Job Guarantee backs it: live in 7 days or your setup fee back, and at least 5 rescued calls in the first 30 days or we keep working free until we hit it.
Frequently asked questions
How do I figure out how many calls I'm actually missing?
Check your phone's call log or your carrier's records for unanswered, after-hours, and busy-signal calls over a normal week or two. Don't forget the calls that come in while you're already on the phone — those overflow calls are easy to miss entirely. Once you have a weekly number, multiply it by your average job value and by roughly 1 in 3 (Navon's illustrative booking assumption) to estimate lost revenue.
Is the 1-in-3 booking rate a guarantee?
No. The 1-in-3 figure is an illustrative planning assumption Navon uses for the ROI math — it is not a measured result or a promise. Your real conversion depends on your trade, pricing, and how fast you respond. What Navon does guarantee is going live in 7 days or your setup fee back, and at least 5 rescued calls in your first 30 days or we keep working free until we hit it.
Why not just use voicemail or a callback to catch missed calls?
Because a missed caller often dials the next competitor within about 90 seconds — long before a voicemail callback goes out. Voicemail, generic missed-call apps, and traditional answering services don't get the customer a real answer in the moment they're deciding who to hire. Navon's instant text-back reaches them in seconds, in your business's voice, while they're still choosing.
What's the cheapest way to start with Navon?
Lead Rescue at $150/mo plus a $500 one-time setup. It sends an instant, branded text-back on every unanswered call and routes the lead to you, and it goes live in about 7 days on your existing number. There's also a founding offer: the setup fee is waived for the first 3 businesses per trade in exchange for a short testimonial.
See what Navon would catch on your line
Book a 10-minute call. 100% inbound, live in ~7 days — or your setup fee back.