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For business · HVAC

No heat at 9 pm, and somebody answers.

The first hot week and the first cold night bring every call at once. Your Bot answers each one, finds out what the system is doing, who is in the house, and how soon it matters, and hands you a list in the order you would have chosen.

Made for: Heating and cooling contractors · Furnace and boiler service · AC installers · Maintenance-plan companies

What you get after a call
No cooling · upstairs unit · 84°F inside · wants today

Upstairs AC runs but blows warm since this morning. Thermostat set to 72, reading 84. Heat pump, about 8 years old. Filter changed last month. He works from home and is there all day. Told him plan customers are called back first.

  • Call Marcus with a window for today
  • Bring a capacitor for an 8-year-old heat pump

Example. Names and numbers are made up; the format is what every call produces.

An AI receptionist for HVAC companies

An HVAC answering service that only takes messages leaves you to sort forty voicemails on the hottest day of the year. This one asks what the system is doing and who is in the house, so the urgent calls are at the top of your list when you look.

More on how this compares: AI receptionist · AI answering service · replacing voicemail.

Read the guide: HVAC answering service: handling the first hot week of summer

Sound familiar
  • Forty calls on the first hot day and one person to answer them.
  • No way to tell a dead system from a noisy one on a voicemail.
  • Maintenance-plan customers who expect to be put first.
  • Quote requests lost in the rush of repairs.
What your Bot does on the line
  • Asks whether the system runs at all, what the thermostat says, and how long it has been out.
  • Flags a house with a baby, an older person, or pipes at risk in the cold as urgent.
  • Takes the make, the rough age, and whether it is gas, electric or a heat pump.
  • Knows who is on a maintenance plan from the list you give it.
  • Quotes the diagnostic fee and tune-up price from your rate card only.
  • Calls customers back with their appointment window, and calls the distributor about a part.
Train your Bot

A starting brief you can paste today.

Fill in the brackets, paste it into Settings → Standing instructions, and make one test call. Tighten it after a day of real calls.

Want to hear a briefed Bot first? Listen to two real calls.

Standing instructions · HVAC
You are the assistant for [Company], a heating and cooling company serving [area].
Hours: [hours]. After hours: take the details; say urgent calls get a callback within [time].
Urgent means: no heat below [temp] outside, no cooling above [temp], or a baby or older person at home.
If they smell gas or the carbon monoxide alarm is sounding: tell them to go outside and call 911 first.
Quote only: diagnostic [price], tune-up [price]. Maintenance-plan customers: [names or rule].
Always capture: name, phone, address, what the system is doing, make and age if known, who is home.
Never take card numbers.
Hear it

A real recording of the same kind of call.

Scripted, with invented names, recorded on the voice a CosVoice line uses.

A contractor calls back with a quote
Every number written down, one decision flagged.
0:00 / –:––
What it costs

$29 a month. Less than a day of temp help.

Starter · $29/mo

100 minutes of calls. Then $0.25 a minute.

Plus $79 · Pro $199

300 or 1,000 minutes, for a line that's busy all day. Full pricing →

Questions from hvac owners

Straight answers.

Is this an AI receptionist?

It's a phone number for your Bot. You brief that Bot as your front desk, your sales intake, or both, the way you'd brief a new hire. One line, one Bot, and your instructions, not a generic script.

Will it replace Square, Booksy, Fresha, or my calendar?

No. Keep your booking system. The line collects the request and your team confirms it there, or your own Bot books it if you've given it access to that calendar.

Can it take card payments?

No. The line never reads out or takes a card number. Deposits and payments stay in the tools you already use.

Do I need a Grok Bot?

No. The line works on its own with standing instructions you write in Settings. If you run Grok Bot, an OpenAI dot, Claude, ChatGPT, or Cursor, connecting it lets your Bot place calls and read every summary itself.

Does it say it's an AI?

Yes, whenever someone asks. It answers as your business's assistant and never pretends to be a person.

All questions and answers →

Give your business its own assistant's line.

Brief it once. Callers get your business. You get the notes.

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