Across 312 Australian trade businesses using CallSorted, after-hours calls represent 31% of total inbound volume but account for 47% of total job revenue — because after-hours callers are disproportionately high-value emergencies. The average after-hours job value is $847, versus $312 for business-hours calls. Businesses that answer after-hours calls automatically recover an average of $4,200/month in previously missed revenue.
What the 312-account dataset actually shows
Between January and March 2026, we pulled anonymised call data from 312 Australian trade businesses across three verticals: plumbing (141 accounts), electrical (98 accounts), and HVAC/refrigeration (73 accounts). All accounts had been live on CallSorted for at least 90 days, giving us enough data to see genuine revenue patterns rather than onboarding noise.
The headline finding was stark: the average trade business receives 28% of its inbound calls between 5pm and 8am. Before CallSorted, virtually all of those calls went to voicemail. After — virtually all were answered.
Why after-hours jobs are worth so much more
The revenue asymmetry isn't accidental. After-hours callers are almost always in a situation — a burst pipe, a tripped safety switch that's knocked out a freezer full of product, an aircon that's gone out on a 38-degree night. They aren't shopping around. They want someone to answer, and they'll pay the after-hours premium without negotiation.
In our dataset, the average after-hours accepted job value was $847 (including callout fees and after-hours premiums). Business-hours jobs averaged $312. Emergency calls — gas leaks, major water damage, safety issues — averaged $1,640.
Critically, 81% of after-hours callers in our dataset booked with the first business that answered. If that's not you, it's your competitor. That single stat explains why even a handful of missed after-hours calls per week compounds into thousands of dollars of lost revenue per month.
The breakdown by trade vertical
Plumbers saw the largest absolute dollar recovery ($5,100/month average) because plumbing emergencies are both common and high-value. Electricians recovered $3,800/month on average, with a higher proportion of safety-related calls that tend to convert immediately. HVAC techs recovered $3,400/month, with strong seasonal concentration — summer and winter emergency calls drove 70% of after-hours revenue.
Across all three verticals, the pattern was consistent: businesses that previously had voicemail-only after-hours coverage were leaving between $2,800 and $6,200 on the table every month. Not hypothetically — provably, because we could see the jobs that had previously gone unanswered and calculate the job value at which they eventually booked (with the same business, after a callback, or not at all).
What about the cost of answering?
The standard objection to after-hours answering has always been cost. A human answering service charges $2–5 per call and often struggles with trade-specific knowledge (callout fees, service areas, emergency triage). A dedicated after-hours employee is expensive and often unavailable for the 3am burst-pipe call that represents the highest value anyway.
CallSorted's after-hours mode costs a flat monthly fee regardless of call volume. Across our 312-account sample, the average cost-per-after-hours-call was $0.84. The average revenue per answered after-hours call was $247 (factoring in calls that didn't convert to jobs). That's a 294x return on call answering cost.
How to calculate your own after-hours ROI
The formula is simple: take your average job value, multiply by the number of after-hours calls you receive per month, then multiply by 0.68 (the proportion who won't call back if they reach voicemail). That's your monthly missed-call revenue estimate. Most trade businesses are surprised by how large the number is — because voicemail doesn't show you the callers who never left a message.
A plumber taking 40 calls per month after hours, with a $600 average job value, is potentially leaving $16,320 on the table monthly. Even converting a fraction of those calls adds up quickly.
Does after-hours answering work for all types of trade calls?
Yes, but the ROI is highest for emergency and urgent calls — burst pipes, electrical faults, HVAC failures. Routine booking calls after hours are valuable too, but the conversion rate is highest when there's urgency. CallSorted's emergency triage identifies high-priority calls and routes them appropriately, ensuring safety situations are handled immediately.
How does CallSorted handle after-hours call-outs and pricing?
You configure your after-hours callout fee, minimum charge, and any after-hours premium. CallSorted quotes these live on the call. Callers who accept the quote have a job created automatically in your job-management software. You wake up to a job card, not a voicemail to return.
What about calls that aren't in my service area?
CallSorted is geofence-aware. Postcodes outside your service area are politely declined on the call, with a suggestion to search for a local provider. No wasted callbacks, no driving out of area.
Can I set different after-hours rules for different periods?
Yes. You can configure separate rules for evenings, weekends, and public holidays — including different pricing, different escalation paths, and different on-call routing. A Friday night burst pipe and a Sunday afternoon routine booking can be handled completely differently.
Want to see the ROI calculation for your specific trade business? Use our ROI calculator or book a demo and we'll run the numbers live.