After-hours answering service for trades
By Jared Ohman · Updated June 2026
The calls that come in after the office closes are the ones worth the most. Here is how an on-call after-hours service catches them, tells an emergency from a routine call, and gets the urgent one to a person who can act.
Why trades lose the most revenue after hours
Think about which calls actually come in at night. A furnace that quits at eleven on a cold January night. A pipe that bursts and starts flooding a basement at 2am. A lockout at midnight. These are not callers who shop around tomorrow. They need help now, and they dial down the list until someone picks up. The shop that answers gets the job and, often, the customer for years.
The numbers we work from make the stakes plain: the average trades shop misses about 27% of its calls, a missed routine call is worth about $350, and a missed emergency is worth $700 to $1,200. Most of those emergencies land outside business hours. Put a real figure on your own shop with the missed-call calculator.
How Diane triages an emergency from a routine call
The whole job after hours is telling the two apart. A no-heat night call cannot wait until 8am. A request to book a spring tune-up can. During setup you give Diane your rules for what counts as an emergency in your trade, so she is not guessing from a generic script. When a call comes in, she listens, asks what is wrong in plain language, and sorts it.
A routine request gets booked onto your calendar for the next working day, waiting for you in the morning instead of lost. A genuine emergency gets handled differently: Diane confirms the details, then escalates straight to your on-call tech’s cell so a person decides whether to roll a truck that night. Either way you get a clean 7am summary of everything that came in overnight. See the full call walkthrough in our guide to how an HVAC answering service works.
On-call escalation, set to your rules
On-call only works if the right call reaches the right person. You tell Diane who is on call and what is urgent, and she follows it. The routine stuff stays quiet on your calendar so nobody is woken for a tune-up. The emergency goes through, with the caller’s name, number, address, and the problem already captured, so your tech picks up the phone already knowing what they are walking into. See how this is set up on the HVAC answering service page.
Flat cost, not a per-minute meter
Traditional after-hours services usually bill per minute or per call. That means your busiest, most stressful nights also run up the biggest bill, which is backwards. HeyDiane is a flat $199 CAD a month, month-to-month, with a $0 founder setup. A long emergency call at 2am costs the same as a quiet night. No contract, cancel any time in one click, and you keep every recording.
HeyDiane is built in Sherwood Park, Alberta, for local trades. There is a good chance there is already a page for your city, like Edmonton HVAC or Calgary HVAC.
Common questions
What is an after-hours answering service?
It is cover for the calls that come in when your office is closed: nights, weekends, and holidays. For trades, an after-hours service answers the phone, figures out whether the call is a real emergency or something that can wait, and either books it for the morning or escalates it to whoever is on call. The point is that an urgent caller reaches a person who can act, not a voicemail box.
How does on-call escalation work?
During setup you tell HeyDiane what counts as an emergency in your trade and who is on call. When a call comes in after hours, Diane triages it against those rules. A routine request goes onto your calendar for the morning. A genuine emergency gets pushed straight to your on-call tech's cell, so a person decides whether to roll a truck tonight.
Why do trades lose the most money after hours?
Because the calls that come in at night are the urgent, high-value ones: a furnace that quits in January, a burst pipe flooding a basement, a lockout at midnight. Those callers will not wait. They dial the next company that picks up. A missed routine call is worth about $350; a missed emergency is worth $700 to $1,200, and most of those happen after hours.
How is the cost different from a per-minute service?
Traditional after-hours services usually bill per minute or per call, so the busiest, most stressful nights also cost the most. HeyDiane is a flat $199 CAD a month, month-to-month, with a $0 founder setup. A long emergency call at 2am does not add to your bill.