Skip to content
All call scripts

Free call script template

HVAC Emergency Triage Call Script: No Heat, No Cooling, Gas and CO

Reviewed by , Co-Founder · Updated

Download for Word (.docx)
In short

How should an HVAC company triage an after-hours call?

Triage an HVAC call by safety first: a gas smell, carbon monoxide alarm, smoke or burning smell means everyone leaves and calls 911 or the gas company from outside. Then ask who is home and the indoor temperature: infants, older adults or medical needs make no heat or cooling an emergency. Botcadence's HVAC answering service runs this order 24/7.

Most after-hours HVAC calls are not emergencies, and the few that are can be life-threatening. The call taker's job is to find those few fast, send the dangerous ones to 911 or the gas company, wake the on-call tech for the urgent ones, and book the rest for the morning without losing them.

This script sorts calls in three tiers:

  • Leave now (safety): gas smell, a carbon monoxide alarm or CO symptoms, smoke, sparks or a burning smell. The caller leaves and calls from outside. The CPSC's advice for suspected CO is to get to fresh air first, then call 911.
  • Send the on-call tech tonight: no heat or no cooling when someone at higher risk is in the home or the indoor temperature is dangerous, water leaking from the system onto ceilings or electrical, or a commercial account with a contract.
  • Book the first slot: everything else, with the after-hours fee explained so the caller can choose.

Replace the words in [brackets] with your company's, including your after-hours fee and callback window, and keep the order.

The script, step by step

  1. 1. Greet, then check the safety questions

    Say
    Thank you for calling [Company], this is [Name] on the after-hours line. First, a quick safety check: do you smell gas, is a carbon monoxide alarm going off, or do you see smoke or smell something burning?
    Why
    These are the calls where the right words prevent an injury. Carbon monoxide has no smell, and the CDC lists furnaces among the household sources. People who are asleep can be poisoned before they notice symptoms.
    Write down
    • Gas smell
    • CO alarm sounding
    • Smoke, sparks or burning smell
    • Anyone with headache, dizziness, nausea or confusion
    What to do at step 1
    IfThen
    Gas smell"Please leave the house now with everyone. Don't touch light switches or use your phone inside. Once you're outside, call 911 or the gas company." Log the call and alert the on-call tech.
    CO alarm, or anyone has headache, dizziness, nausea or confusion"Please get everyone outside to fresh air right now, then call 911." Log the call and alert the on-call tech.
    Smoke, sparks or a burning smell from the unit"Please turn the system off at the thermostat if you can do it safely, leave the room, and call 911 if you see smoke or fire."
  2. 2. Get the callback number and address

    Say
    In case we get disconnected, what's the best number to reach you, and the address of the property?
    Why
    If the call drops, the tech can still call back and find the house. Checking the address now also tells you whether it's in your service area.
    Write down
    • Caller name
    • Callback number
    • Service address
    • Inside service area (yes or no)
  3. 3. What's happening?

    Say
    What's going on with the system: no heat, no cooling, water leaking, a strange noise, or something else? When did it start?
    Why
    The symptom decides the urgency and the parts the tech brings.
    Write down
    • Symptom
    • When it started
    • Water leaking from the unit, and onto what
    What to do at step 3
    IfThen
    Water leaking onto a ceiling, electrical or the floor below"If you can do it safely, turn the system off at the thermostat and put a bucket or towels under the leak." Treat as urgent.
  4. 4. Who's in the home, and how hot or cold is it?

    Say
    Who's in the home right now? Is there a baby, someone older, or anyone with a medical condition or medical equipment? And roughly what temperature is it inside?
    Why
    Ready.gov says older adults, children and people with chronic conditions are at greater risk in extreme heat and cold. A no-cooling call in a heat wave with an older adult at home is a different call from the same fault in an empty house.
    Write down
    • Infants, older adults, medical conditions or equipment
    • Indoor temperature
    • Pets
    What to do at step 4
    IfThen
    Someone has signs of heat stroke: very hot skin, confusion, fainting"Please call 911 now." Ready.gov lists confusion, very high body temperature and hot, dry skin as signs of heat stroke.
    No cooling in extreme heat, with someone at higher riskTreat as urgent. "Until we get there, a cool shower and a cooler room can help, and your local cooling centers are open; dial 2-1-1 to find one."
    No heat in freezing weather, with someone at higher riskTreat as urgent. "Please don't heat the house with the oven or stovetop. It can cause carbon monoxide poisoning."
  5. 5. System details and quick checks

    Say
    What kind of system is it: a gas furnace, a heat pump, a central air conditioner, a boiler? Is the thermostat set to heat or cool, and does its screen have power? Has a breaker tripped?
    Why
    Some calls are a thermostat set wrong or dead batteries, and the caller would rather know now. The system type tells the tech what to bring. Don't walk the caller through repairs, and tell them not to keep resetting a breaker that trips again.
    Write down
    • System type
    • Approximate age
    • Thermostat checked
    • Breaker tripped (and whether it trips again)
    • Brand, if known
  6. 6. Customer and plan status

    Say
    Have we worked on your system before, and are you on one of our maintenance plans?
    Why
    Members often get priority or a reduced after-hours fee, and past job notes help the tech.
    Write down
    • Existing customer (yes or no)
    • Maintenance plan member (yes or no)
    • Home or commercial
  7. 7. Explain the after-hours fee

    Say
    Our after-hours visit fee is [after-hours fee], which [covers the trip and diagnosis / is in addition to repairs]. Or we can book you for [first morning slot] at our regular rate. Which would you like?
    Why
    An after-hours fee the caller agreed to on the phone avoids a dispute at the door, and offering the morning slot respects callers who can wait.
    Write down
    • Fee accepted, or morning slot chosen
  8. 8. Set the next step

    Say
    [Tonight:] I'm sending this to our on-call technician now, and they'll call you at [number] within [your callback window] to give you an arrival time. [Morning:] You're booked for [day and time], and we'll text you when the technician is on the way.
    Why
    The caller needs one clear next step and a time frame you can keep.
    Write down
    • On-call alert sent, and who acknowledged
    • Appointment date and time
  9. 9. Close the call

    Say
    If you smell gas, a CO alarm goes off, or anyone feels unwell before we get there, get everyone outside and call 911 first. Thank you for calling [Company].
    Why
    Ending on the safety rule means the caller knows what to do if things change while they wait.

What not to say

Don't saySay insteadWhy
“It's probably nothing, just open a window.”“Please get everyone outside, then call 911 or the gas company.”Gas and carbon monoxide calls can't be judged over the phone. Leaving first is always the right advice.
“Try running the oven to warm up the house.”“Please don't heat the house with the oven or stovetop.”Ready.gov warns that heating a home with a gas stovetop or oven risks carbon monoxide poisoning and fire.
“Just reset the breaker until it stays on.”“If the breaker trips again, please leave it off and the technician will check it.”A breaker that keeps tripping can mean an electrical fault.
“The tech will be there in an hour.”“The on-call technician will call you within [your callback window] with an arrival time.”Arrival depends on where the tech is and what else is on the board.
“That repair will be about [amount].”“The technician will diagnose it and give you the price before doing any work.”Nobody can price a repair they haven't diagnosed.

When to hand off

WhenWhat happens
Gas smell, CO alarm or CO symptoms, smoke or fireCaller leaves and calls 911 or the gas company. Log the call and alert the on-call tech.
No heat or no cooling with an at-risk person or a dangerous indoor temperatureWake the on-call tech now, and keep escalating until someone acknowledges.
Water leaking onto ceilings or electricalWake the on-call tech.
Commercial account with an emergency contractWake the on-call tech and alert the commercial manager.
Caller chooses the morning slotBook it and send the job summary to dispatch.
Outside the service areaSay so plainly and refer the caller if you have a referral partner.

Spanish version

The same steps in Spanish. Read it aloud with a fluent speaker on your team and adjust the wording to how your customers talk before you use it.

  1. Paso 1. Gracias por llamar a [Compañía], le habla [Nombre] en la línea fuera de horario. Primero, una pregunta de seguridad: ¿huele a gas, está sonando una alarma de monóxido de carbono, o ve humo o huele a quemado?
  2. Paso 2. Por si se corta la llamada, ¿cuál es el mejor número para comunicarnos con usted, y la dirección de la propiedad?
  3. Paso 3. ¿Qué le pasa al sistema: no calienta, no enfría, está goteando agua, hace un ruido raro, u otra cosa? ¿Desde cuándo?
  4. Paso 4. ¿Quién está en la casa ahorita? ¿Hay un bebé, una persona mayor, o alguien con una condición médica o que use equipo médico? ¿Y más o menos qué temperatura hace adentro?
  5. Paso 5. ¿Qué tipo de sistema es: un calentador de gas, una bomba de calor, un aire acondicionado central, una caldera? ¿El termostato está en calefacción o en aire, y la pantalla prende? ¿Se botó algún interruptor del tablero?
  6. Paso 6. ¿Ya le hemos dado servicio a su sistema antes, y tiene uno de nuestros planes de mantenimiento?
  7. Paso 7. Nuestra tarifa por visita fuera de horario es de [tarifa fuera de horario], que [cubre la visita y el diagnóstico / es aparte de la reparación]. O le podemos agendar para [primera cita de la mañana] con nuestra tarifa normal. ¿Qué prefiere?
  8. Paso 8. [Esta noche:] Le estoy pasando esto ahora mismo a nuestro técnico de guardia, y le va a llamar al [número] dentro de [su tiempo de respuesta] para darle la hora de llegada. [En la mañana:] Queda agendado para el [día y hora], y le mandaremos un mensaje cuando el técnico vaya en camino.
  9. Paso 9. Si huele a gas, suena una alarma de monóxido de carbono o alguien se siente mal antes de que lleguemos, salgan todos de la casa y llame primero al 911. Gracias por llamar a [Compañía].

Sources

  1. CPSC: Carbon monoxide information center (checked )
  2. CDC: Carbon monoxide poisoning basics (checked )
  3. PG&E: Gas safety (checked )
  4. Ready.gov: Extreme heat and heat-related illness (checked )
  5. CDC: About heat and your health (checked )
  6. Ready.gov: Winter weather (checked )

How a Botcadence agent runs this script

Botcadence's HVAC answering service runs this order on your line after hours, on overflow or 24/7:

  • Safety first. Callers who report a gas smell, a CO alarm, CO symptoms or smoke are told to get outside and call 911 or the gas company.
  • Triage. The agent asks who is in the home and how hot or cold it is, records the system details and membership, and explains your after-hours fee in your words, in English or Spanish.
  • Next step. Urgent calls start your on-call escalation, which texts and calls your techs and backups until someone replies, or warm-transfer to the on-call tech with a spoken brief. Routine calls are booked into Google Calendar, and the agent can text the caller a confirmation during the call.
  • Limits. It doesn't diagnose, quote repair prices or walk callers through repairs.

It runs on the Voice AI plan: $249 a month with 1,500 minutes, then $25 per 200 extra minutes. The AI receptionist for HVAC page has sample call types.

Common Questions

Questions about this script

A gas smell, a carbon monoxide alarm or symptoms, smoke or a burning smell are safety emergencies: everyone leaves and calls 911 or the gas company. No heat or no cooling becomes an emergency when infants, older adults or people with medical needs are in the home, or the indoor temperature is dangerous. Most other calls can be booked for the next morning.

Get everyone outside to fresh air immediately, then call 911. That is the CPSC's advice for suspected carbon monoxide poisoning. Don't go back in to check the furnace.

Only the simple checks: the thermostat setting, whether its screen has power, and whether a breaker has tripped. Don't walk callers through repairs, and tell them not to keep resetting a breaker that trips again.

State the fee and what it covers, then offer the first regular-hours slot as the alternative and let the caller choose. A fee agreed on the call avoids a dispute at the door.

Yes. Every step has a Spanish line in the Spanish section. Have a fluent speaker on your team read it once and adjust it to how your customers speak.

Ask AI about this page