How to Handle Emergency Calls as an HVAC Company

Heating and cooling systems do the heaviest work in a home. The US Energy Information Administration says space heating and air conditioning used 52% of household energy in 2020. They run hardest on the hottest and coldest days, so that is when they fail.

That means your emergency calls come in waves, often at night or on weekends, and often when your whole team is already out. Having a clear plan for those calls protects your customers and your business.

A few HVAC problems can hurt people. The numbers are serious:

• Carbon monoxide (CO). The CDC says that each year more than 400 Americans die from unintentional CO poisoning not linked to fires, more than 100,000 visit an emergency room, and more than 14,000 are hospitalized. Faulty furnaces are a common source.
• Extreme heat. CDC data shows an average of 702 heat-related deaths per year in the US from 2004 to 2018. Older adults, babies, and people with health conditions are most at risk when the AC goes out.

Whoever answers your phone, whether it is you, a staff member, or an AI, needs to recognize these calls in the first few seconds.

• Level 1 — Danger. Act now. CO alarm going off, smell of gas, someone feeling dizzy or sick, smoke or burning smell from the unit. Tell the caller to get everyone outside and call 911 or the gas utility first. Then dispatch.
• Level 2 — Urgent. Same night. No heat when it is freezing outside, or no AC during a heat wave with an elderly person, baby, or someone with a medical condition in the home.
• Level 3 — Soon. Same or next day. No heat or AC in mild weather, a system short-cycling, water leaking from the indoor unit.
• Level 4 — Routine. Book it. Tune-ups, filter changes, noisy units that still work, quotes for new systems.

Write these levels down and share them with everyone who answers your phone. A clear rule beats a gut feeling at 2 AM.

• Is anyone feeling sick, dizzy, or short of breath?
• Is a carbon monoxide alarm going off, or do you smell gas?
• Is it heating or cooling? Is the system running at all?
• What is the temperature inside the home right now?
• Is there anyone elderly, very young, or with a medical condition in the home?
• What is the address and the best number to reach you?

The first two questions decide whether this is a Level 1 call. Always ask them first.

• Set an on-call rotation. One tech per night, posted on a calendar everyone can see.
• Be clear about after-hours pricing. Tell callers the emergency fee up front. Surprises on the bill lead to bad reviews.
• Promise a callback time and keep it. “A technician will call you within 15 minutes” calms people down.
• Give simple safety steps. For no heat: close curtains, use safe space heaters, keep doors closed. For no AC: close blinds, use fans, drink water, and go somewhere cool if anyone feels unwell.

HomeAdvisor puts the average HVAC repair at about $350. A new furnace runs $2,600 to $6,200, and a new central air system runs $3,800 to $7,500.

Emergency callers often turn into replacement customers, especially with older systems. The company that shows up at 11 PM on the coldest night of the year is the company they call for the next 15 years. Miss that call, and you hand that customer to someone else.

Mercvox answers every call in under one second, 24 hours a day. It listens for emergency signs like “gas smell,” “CO alarm,” or “no heat,” and alerts your on-call tech right away by text. Routine calls are booked straight into your calendar for the next open slot.

Your on-call tech only gets woken up for real emergencies, and no caller ever hits voicemail.

• CDC — About Carbon Monoxide Poisoning
• CDC MMWR — Heat-Related Deaths, United States, 2004–2018
• US Energy Information Administration — Energy use in homes
• HomeAdvisor — HVAC repair cost guide