The 7 trigger HVAC emergency intake script, with template.
Emergency intake is where HVAC dispatch wins or loses the day. Get it right and the contractor lands the highest margin jobs on the calendar, emergency repair, equipment failure replace, install converted from "my whole system died at 11pm" panic. Get it wrong and the call goes to a competitor, or worse, a homeowner gets hurt while waiting on a triage that didn't happen.
This is the actual 7 phrase intake script we use to train AI receptionists for residential HVAC contractors. It's the same framework a senior dispatcher with 15 years on the desk runs unconsciously. Most call centers, and most under trained CSRs, get fewer than half of these right.
Why this matters more than most owners think
Two reasons emergency intake is disproportionately important:
1. Emergency calls produce the highest tickets. A 2pm "I think my AC needs servicing" call has an expected ticket of $300 to 600. An 11pm "no cool, baby in the house" call has an expected ticket of $1,500 to $8,000. Emergency diagnostic, same night repair, and often a fast track to install conversation when the system is end of life. Per minute of dispatcher time, emergency calls are 5 to 15× more valuable than routine calls.
2. The first business to answer wins. Public home services data is consistent: in emergency residential service categories, the first contractor to put a human voice on the phone wins ~70% of the time. Speed of pickup matters. But quality of triage, recognizing what's actually an emergency, vs. what can be booked tomorrow, is what separates dispatchers who land the high value jobs from ones who give them away.
The seven trigger phrases below should always escalate. Each one has a specific reason, a specific intake flow, and a specific dispatch action. Most call centers ignore the modifiers; the modifiers are where the money is.
Trigger 1. "No cool" / "AC not working" (in cooling season)
The most frequent emergency phrase in residential HVAC. Anything from "AC is just blowing warm air" to "no air at all."
What to ask immediately:
- Indoor temperature right now? (anything above 82°F escalates faster)
- Anyone home who's elderly, very young, pregnant, or with a medical condition? (this is the modifier, see Trigger 7)
- Is the unit running at all, or completely silent?
- Outdoor unit, running? frozen up? making noises?
Action: If indoor temp is 85°F+ or there's a vulnerable person, escalate to live transfer or on call tech immediately. Otherwise, book the soonest emergency slot and confirm the homeowner's expectation: "Tech will be there between X and Y, you'll get a text with their name 30 minutes before they arrive." Send the SMS confirmation within 60 seconds.
Trigger 2. "No heat" (in heating season)
Mirror image of Trigger 1, but with sharper consequences. A house at 50°F overnight in January is a real safety issue, especially with elderly residents or infants.
What to ask immediately:
- Indoor temperature now? (anything below 60°F escalates immediately)
- Vulnerable person at home? (mandatory question)
- Any auxiliary heat, fireplace, space heaters? (NOT a substitute, but tells you how cold the house is right now)
- Furnace or heat pump? Any sounds, any error codes on the thermostat?
Action: Below 60°F indoor or vulnerable person? Live transfer. Above 60°F and no vulnerable person? Same day emergency slot. Always, always confirm the homeowner can stay safe until the tech arrives. If they can't (no power, no auxiliary heat, very cold outside), send the tech now even if it's after hours, even if it costs you overtime. Do not rationalize this.
Trigger 3. "Leak" / "water everywhere"
Three sub categories, each handled differently:
- Refrigerant leak. System not cooling properly, hissing sound, possibly icing. Schedule emergency tech. Refrigerant exposure is mostly a system issue, not a safety one. Don't panic the homeowner.
- Condensate or drain pan leak. Water under the indoor unit, ceiling staining if a second floor air handler. Tell the homeowner to turn off the system at the thermostat immediately to stop the leak. Escalate to soonest available tech.
- Boiler or hydronic leak (in steam or hot water heat homes). Potential scalding hazard. Tell the homeowner to shut the boiler off at the emergency switch and stay clear. Live transfer or 911 if scalding has occurred.
Most call centers lump all "leak" calls into the same routine dispatch slot. They miss that condensate leaks become ceiling collapses if ignored, and that hot water leaks become hospital visits. The differentiation matters.
Trigger 4. "Gas smell" / "smell gas"
The only intake phrase that does not get a regular dispatch. Period.
What to do, in this order:
- Tell the homeowner, right now, while still on the call, to leave the house immediately. Do not flip light switches. Do not use the phone inside. Get out.
- Once outside, call 911 from outside the house, then call the gas utility.
- Once safe, call us back to schedule a tech to inspect after the gas company has made the home safe.
What you do NOT do: ask diagnostic questions. Don't try to qualify whether it's "really gas." Don't put them on hold. Don't take a callback number first. Get them out of the house. The script is short and direct: "Please leave your house right now and call 911 from outside. We'll see you after the gas company clears the home."
Why this matters: the most common cause of an HVAC dispatcher being personally liable is taking a normal intake call when the homeowner mentioned gas. If the home explodes while the dispatcher is asking about thermostat model, that's a problem. Train this one specifically.
Trigger 5. "Smoke" / "burning smell" / "sparks"
Electrical fault adjacent to gas furnace, wire damage, motor fire, any of these are immediate danger calls.
Action: Tell the homeowner to shut off the system at the thermostat AND the breaker (give them clear directions if they don't know how, typical breaker is labeled "FURNACE" or "AIR HANDLER"). If smoke is visible, tell them to leave the house and call 911. If the smell has stopped after shutting the system off, schedule emergency tech for same day diagnosis.
Do not tell the homeowner "it's probably nothing" or "that's normal for a furnace that hasn't run all summer." Even if 90% of the time it is, the 10% case is a house fire.
Trigger 6. "Carbon monoxide" / "CO alarm going off"
Same protocol as gas smell, with an additional medical consideration:
- Get out of the house immediately. Take everyone with you, including pets.
- Call 911 from outside. CO poisoning is medical, not just an HVAC issue.
- Do not return until 911 / the gas utility / a CO detector says it's safe.
- Once safe, schedule a tech to inspect the heat exchanger and venting.
The HVAC dispatcher's role here is brief: get them out, send them to 911. The technical service comes after the safety response.
Trigger 7. The vulnerable person modifier
This is the one most call centers miss, and the one that changes the urgency level on every other trigger above.
A vulnerable person at home is anyone who can't reliably regulate their own body temperature in extreme conditions:
- Infants and very young children (under 5)
- Elderly residents (over 70, or anyone with mobility issues)
- Anyone on supplemental oxygen, dialysis, or temperature sensitive medication
- Pregnant women in late stages
- People with chronic conditions: COPD, heart disease, MS, diabetes
When ANY of these are present, "no cool" / "no heat" / "boiler down" is an immediate emergency, not a same day. The dispatcher's job is to ask, every time. The exact phrasing we train:
"And just so I can prioritize this, is there anyone in the house who's elderly, very young, pregnant, or has a medical condition that makes the heat/cold harder on them?"
That single question, asked of every "no heat" / "no cool" intake, changes dispatch decisions in roughly 15 to 25% of cases. It's also the question most likely to bump a routine ticket into an immediate tech, install conversation, high value visit. The homeowner who tells you their 87 year old mother lives with them is a homeowner who needs the system fixed properly tonight, not a routine repair tomorrow.
The actual script template
Compressed to the essential moves, the intake call looks like this, and runs in 60 to 90 seconds for a routine, 30 to 60 seconds for an emergency:
- Greet: "Thanks for calling [Company], this is [Name]. How can I help?"
- Listen, don't interrupt. Let the homeowner describe the issue in their own words. Don't redirect for the first 15 seconds.
- Reflect back: "Okay so your AC stopped cooling around 8pm tonight, and the indoor temp is now 84°F."
- Trigger check: Does the issue match any of the 7 triggers above? If yes, skip to the protocol for that trigger.
- Vulnerable person check: Always ask. (Trigger 7 modifier.)
- Capture: Name, address with ZIP, callback number, equipment age if known, preferred time window.
- Book or escalate: Real time slot in the schedule, or live transfer to on call tech.
- Confirm: Read back the booking, send SMS confirmation within 60 seconds.
- Close warm: "Thanks for calling [Company], we'll see you at [time]."
Why AI is unusually good at this, and where humans still win
The 7 trigger framework above is what makes well built AI receptionists outperform under trained human dispatchers on emergency intake. The AI runs the checklist consistently, on every call, regardless of how busy the dispatcher is, what time of night it is, or how distressed the caller is. It asks the vulnerable person question every time. It never forgets to differentiate gas smell from refrigerant leak. It always escalates the right calls to the on call tech via live transfer.
Where senior human dispatchers still win: the unusual call. The one that doesn't fit any of the 7 triggers but is obviously serious. The homeowner who's elderly and confused and calling about something that turns out to be a smoke detector battery. AI is great at consistency; humans are great at the judgment call edge cases.
The right architecture for HVAC dispatch is hybrid: AI handles every inbound call by default, runs the 7 trigger framework, books the routine ones, and escalates the unusual ones to a human via live transfer. That's how Voltic Voice is configured for residential HVAC contractors. Every call goes through the framework, and anything outside it gets a human on the line within 10 seconds.
Next steps
Whether you're running this through a dispatcher you're training, an answering service you're auditing, or an AI receptionist you're configuring, the 7 trigger framework is the same. Print it out. Tape it to the dispatch desk. Check which ones your team gets right today.
If you want our complete prompt template for AI implementations (the same one we use when we build Voltic Voice for new HVAC contractors), book a demo. We will walk you through the full version, including the per trigger SMS escalation rules and the on call tech routing logic.
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