After-hours calls: when homeowners really call, and what a missed one is worth

After-hours calls are a smaller share of your phone volume than most marketing claims, and a bigger share of your money than most owners assume. ServiceTitan's analysis of 2025 calls to residential HVAC shops on its platform found that 14.1% of inbound calls arrived outside Monday to Friday, 8 to 5 in June, falling to 9.8% in October.¹ That is not the "half your calls come at night" figure you see in ads. But those calls skew toward urgent, high-ticket work, and they are the ones most likely to hit voicemail.

This post lays out what the better data says about when homeowners call, builds a simple model for what an unanswered after-hours call costs, and compares the four ways to cover the phone at night: voicemail, an on-call tech, an answering service and an AI receptionist.

When homeowners actually call: the after-hours data

There is a lot of bad data on this topic. Many "missed call statistics" pages repeat numbers with no sample, no definition and no date. Here is what holds up, with the caveat that every source below is a software vendor reporting on its own customers, not a national survey.

The seasonal swing is real. ServiceTitan's same-store cohort of residential HVAC contractors saw weekday evening and early-morning calls rise from 6.8% of inbound calls in October to 9.3% in June, and weekend calls from 2.95% in October to 4.9% in August.¹ The biggest after-hours block was 5 to 9 p.m. local time. ServiceTitan notes its figures are not nationally representative, and it reports only a few months, so treat them as a shape, not a law.

The 5 to 9 p.m. peak has a simple explanation. The people who notice a warm house or a dripping ceiling are mostly at work during your business hours. In the Bureau of Labor Statistics' American Time Use Survey for 2025, 81% of employed people worked on an average weekday, and on days they worked, 70% did some or all of it at their workplace.² The furnace quits at 2 p.m.; the homeowner finds out at 6:15 and calls at 6:20.

Missed calls are not only a night problem. Invoca's July 2026 benchmark, drawn from calls tracked on its platform across nine home service categories, found a person answered 52% of all inbound calls, 65% of calls longer than 15 seconds, and 73% of calls longer than 30 seconds. Answer rates by category ranged from 32% to 74%.³ Short calls include hang-ups and robocalls, which is why the filtered numbers are higher. Even among calls that lasted longer than 30 seconds, about one in four never reached a person.

Why after-hours calls are worth more than their share

A 10% slice of call volume can carry a much bigger slice of value, for three reasons.

They skew toward no-heat, no-cool and active leaks. Nobody calls at 9:40 p.m. to ask about a duct cleaning special. The Census Bureau's 2023 American Housing Survey found about 13.2 million households were uncomfortably hot for 24 hours or more at least once in the prior year, and for households with air conditioning, a breakdown of the main cooling equipment was the top cause, cited for 4.9 million homes.⁴ That is the market that dials after dark.

The caller has the least patience. Speed-to-lead research on web inquiries points the same way. In a study published in Harvard Business Review, firms that tried to contact a lead within an hour were nearly seven times as likely to qualify it as firms that waited longer, and more than 60 times as likely as firms that waited 24 hours or more. The same audit of 2,241 U.S. companies found 37% responded within an hour and 23% never responded at all.⁵ A phone call at 7 p.m. is the most impatient lead there is: if voicemail answers, the next search result is one tap away.

They often carry an after-hours fee. Many shops charge a premium for evening and weekend dispatch. Even when the job is booked for the next morning, the caller who reached a voice that solved their problem tends to stay with you.

A model for pricing a missed after-hours call

You can put a defensible dollar figure on this with four inputs. All of them come from your own records.

• After-hours calls: from your phone system, by month. Use June and October to see your range.
• Share that are real service needs: remove existing-job questions, vendors, wrong numbers and spam. Listen to 30 calls to estimate it.
• Booking rate when answered: from calls your team or service answered after hours.
• Booking rate when not answered: the share of voicemails and missed calls that still turned into a booked job within 48 hours. Most shops have never measured this, and it is usually lower than they think.
• Gross profit per booked job: average ticket on after-hours-sourced jobs minus parts and labor cost.

A worked example

Every number below is an example. Swap in your own.

Say a 10-truck HVAC shop takes 1,000 inbound calls in June. At the ServiceTitan June share, 141 come after hours. Assume half are real service needs (70 calls), a 60% booking rate when someone answers, a 25% rate when voicemail answers and someone calls back in the morning, and $250 of gross profit per booked job.

That is the number to compare against the cost of coverage. In this example, the shop loses somewhere around $3,000 to $6,000 of gross profit a month to voicemail, before counting the customer who never calls again.

The two inputs that move the answer most are the booking-rate gap and the share of real service needs. If your morning callback is fast and good, the gap shrinks and so does the case for night coverage. If your area is full of rentals and second homes where the caller can't wait, the gap grows.

The four ways to cover after-hours calls

Each option has a real cost, and each fails in a different way.

Voicemail plus a fast callback

Don't dismiss it. If your after-hours volume is low and your 8 a.m. callback is reliable, voicemail may be the right answer in October and the wrong one in July. The minimum upgrade is a text back to every missed caller, so they know someone saw the call and they can reply instead of dialing the next company.

An on-call technician

The cheapest human option, and the right one for real emergencies. Watch the wage rules: under federal rules, a worker who must stay on the employer's premises or so close that they can't use the time for their own purposes is working while on call, while one who just has to be reachable is generally not.⁷ Time spent actually handling calls and driving to jobs is work time either way. State rules can be stricter, so check yours.

The bigger issue is quality. A tech answering from the couch at 9 p.m. rarely asks about memberships, rarely books a window properly, and rarely writes anything down. Use on-call people for emergencies, not as the front desk.

A live answering service

A human voice at any hour, which some callers prefer. The catch is cost per minute and what the agent can do. At the plan prices Ruby lists, the per-minute cost works out to $3.45 to $5.00 before overages.⁶ More important, most answering services take a message and can't see your board, so a "booked" call is often just a callback promise.

An AI receptionist

The per-minute cost is far lower. Twilio lists inbound local calls at $0.0085 a minute and ConversationRelay, its real-time voice service, at $0.07 a minute.⁸ Add the AI model, and a three-minute call costs well under a dollar. In the worked example, 141 June calls at three minutes each is 423 minutes: roughly $1,725 a month on the answering-service plan, versus under $100 of AI usage.

Cheap minutes don't matter if the AI books a window you can't cover, makes up a price, or tries to handle a gas smell. The test of any AI receptionist is what it is not allowed to do. Read our guardrails post before you buy one.

Triage first: three buckets for every after-hours caller

Whatever covers the phone, give it the same three-bucket script.

1. 1

   Emergency: get a person on the line

   Gas smell, carbon monoxide alarm, active flooding, sparks or smoke. Safety instructions first (leave the house, call 911 or the utility), then a warm transfer to the on-call person. No AI or answering service should try to resolve these.

2. 2

   Bookable: offer a real window

   No heat, no cool, no hot water, a drain backing up. Ask the safety question, check for vulnerable occupants (infants, elderly, medical needs), then offer windows from your real schedule. Disclose any after-hours fee before booking.

3. 3

   Shopper or question: capture and call back by 8:05

   Quotes on a new system, a question about an invoice, a maintenance visit. Take the name, address, the problem in their words and a callback time, and put it on someone's task list for the morning.

The third bucket is where most shops leak quietly. A price shopper at 10 p.m. who gets a callback with context at 8:05 a.m. is a warm lead. The same shopper who gets nothing until 10:30 has already booked someone else's estimate.

How to pick coverage for your shop

Run the formula with your own call logs, then match the answer to the option:

• Under about $1,000 a month at stake: voicemail with an automatic text back and a disciplined morning callback list.
• Mostly emergencies, few routine calls: an on-call rotation with clear emergency triggers and a written script.
• Steady evening volume and overflow during the day: AI or a live service, with your CSRs first in line during business hours.
• Peak season only: switch coverage on for June through August and the first cold snap, and off again after.

Whatever you pick, measure the booked rate of after-hours calls monthly, and listen to ten calls a week. The calls tell you what the dashboard can't.

What TradesWork does after hours

The TradesWork phone system can send a text back to missed callers automatically, held during quiet hours and never to anyone who replied STOP. The AI receptionist is in early access: it can answer after hours, on overflow or on every call, books only windows from the same capacity engine as your dispatch board, checks gas, CO, flooding and smoke triggers before the AI speaks and transfers those callers to your on-call person. Calls it doesn't book become a callback task with the caller's details. It needs a phone number on TradesWork and Twilio's voice service switched on for your account, and there is no human answering tier behind it. See how it fits with the other helpers on the AI overview.