An AI receptionist for HVAC answers every call in your company’s name, asks the questions your dispatcher would ask, books routine work like tune-ups and quotes into real open slots, and sends urgent no-heat or no-cooling calls straight to whoever is on call. For an HVAC company the value is concentrated in a few days a year: the first cold snap and the first heat wave, when every furnace or AC that limped through the shoulder season fails at once and a human can’t answer fast enough.
This guide gives you a no-heat triage script you can paste into any AI receptionist, firm rules for carbon monoxide alarms and gas smells, a plan for surge days, ways to use it to fill the quiet months, and what the options cost (checked on each vendor’s own site in November 2026). For plumbing-specific call handling, see our AI receptionist for plumbers guide.
What an AI receptionist does for an HVAC company
| Call type | What the AI receptionist should do |
|---|---|
| No heat / no cooling | Run the triage script, book same-day or transfer to on-call, quote your after-hours fee |
| CO alarm sounding or gas smell | Safety script only: tell them to leave and call 911 or the gas utility, then alert you |
| Tune-up or maintenance | Book into a maintenance slot, confirm by text |
| Replacement quote | Collect equipment age, home size, photos of the unit, book an in-home estimate |
| Existing job or warranty | Pull up the customer, take the details, route to the right person |
| Rebates, financing, “do you service my area?” | Answer from your business profile, or take a message |
| Sales calls and spam | Screen out, don’t interrupt you |
The best setups let your phone ring first and only pick up when you don’t. During the day, it catches what you miss on a rooftop or in a crawlspace. After hours, it answers everything.
Why HVAC call volume breaks normal phone setups
A plumber gets emergencies spread through the year. An HVAC company gets them in waves tied to the weather. On the first night below freezing, dozens of homeowners turn the heat on and find out the igniter, flame sensor or inducer motor died over the summer. A single office person, or an owner answering from a ladder, can take a handful of calls an hour. Everyone else hits voicemail and calls the next company on Google.
Update hours, after-hours fees, the on-call rota and your most common no-heat answers in the receptionist.
Block same-day slots for no-heat calls so the AI can book them, instead of everyone being transferred.
Vulnerable households and no heat at all go first; partial heat books for tomorrow with a confirmed time.
Review every summary. Turn “replace eventually” calls into estimates while they’re still cold.
For any per-call or per-minute plan, ask what one surge week would cost. A plan that’s cheap in July can be expensive in January.
No-heat triage script
Paste this into your receptionist’s instructions and edit to fit your service area and policies. Keep it short; the AI should sound like a calm dispatcher, not a form.
- 1. Safety first: “Before anything else: is a carbon monoxide alarm going off, or do you smell gas?” If yes, go to the safety rule below and stop.
- 2. How bad: “Do you have any heat at all, or is the furnace not running?” and “What’s the temperature inside right now?”
- 3. Who’s home: “Is there anyone in the home who’s elderly, a baby, or has a health condition?” A yes moves the call to the top.
- 4. Backup heat: “Do you have any other safe heat source, like a fireplace or a heat pump?”
- 5. Equipment: furnace, boiler or heat pump; approximate age; any error code or flashing light.
- 6. Simple checks: only safe ones: thermostat set to heat and above room temperature, thermostat batteries, furnace power switch on. Never ask a caller to open panels or touch gas valves.
- 7. Book or transfer: no heat plus a vulnerable person or a very cold house → transfer to on-call. No heat otherwise → earliest same-day slot, and state the after-hours fee. Partial heat → next available slot.
- 8. Confirm: text the time window, the fee, and what to have ready (clear access to the furnace, pets secured).
Set the after-hours fee in writing in the receptionist’s instructions and have it say the number every time. Surprise fees turn into disputes later, and saying the price up front filters out people who’d rather wait until morning. Then itemize it on the invoice; our HVAC invoice template shows how.
CO alarm and gas smell rules
These two never get triaged, booked or diagnosed by an AI. They get one script, then a human is told.
| If the caller says | The AI receptionist says | Then |
|---|---|---|
| A CO alarm is going off, or people feel dizzy, headachy or sick | “Please get everyone out of the home now, and call 911 from outside.” | Alert the owner or on-call tech immediately |
| They smell gas | “Please leave the home now without using switches or phones inside, and call your gas utility’s emergency line or 911 from outside.” | Alert the owner or on-call tech immediately |
That’s it. No troubleshooting, no booking until the fire department or utility has cleared the home. Put this rule at the very top of your instructions, and test it with a role-play call before you go live.
Using it in the quiet months
Spring and fall are when HVAC companies need more calls, not fewer. An AI receptionist helps there too:
- Tune-up bookings: answers “can I book my furnace cleaning?” at 9 PM and puts it straight on the calendar.
- Replacement leads: captures equipment age and photos so your estimator shows up prepared.
- Texts and messages: replies to website chat and social messages the same way it answers calls.
- Fast follow-up: every caller gets a text confirmation, which is also how you collect a review later.
Answering quickly matters most for new leads, who often call two or three companies. Our guide to speed to lead explains why.
What an AI receptionist costs for HVAC
Every vendor bills a different unit, so compare on your real call volume, including a surge week. Prices below are from each company’s own site in November 2026.
| Option | Listed price | Notes |
|---|---|---|
| Contruva | $249.99 CAD / US$179.99 a month, everything included | Receptionist plus quotes, scheduling, invoices, website and marketing; no per-seat fees |
| Jobber AI Receptionist | US$29/mo add-on | On top of a Jobber plan; included in the Plus plan |
| Joist AI Receptionist | $49/mo | Add-on to a Joist plan; currency not stated |
| ServiceTitan AI Virtual Agent | Not published | Sold as a “Pro” product with ServiceTitan; request pricing |
| Standalone AI answering services | Varies by call, minute or customer | See our full comparison |
Whichever you pick, ask how usage is counted and what a surge week would be billed. For a vendor-by-vendor breakdown of standalone services, see the best AI receptionist for contractors.
Setup checklist
- Service area by town or postal code, and what you say to callers outside it.
- Business hours, after-hours hours, and the after-hours fee in dollars.
- On-call rota and the number to transfer to.
- The CO and gas safety rule at the top of the instructions.
- The no-heat (and, for summer, no-cooling) triage script.
- Equipment you service and don’t (e.g. boilers, ductless, commercial rooftop).
- Tune-up price and what’s included.
- Financing and rebate answers, or “I’ll have someone call you.”
- Five test calls: a CO alarm, a no-heat with a newborn, a tune-up, a replacement quote, a sales call.
How Contruva handles HVAC calls
Contruva’s AI receptionist answers in your business name from a local number you pick. It can ring your phone first, answer 24/7, or answer only after hours. It learns your hours, services, service area and FAQs from your business profile, offers only real open slots, books the visit, texts the caller a confirmation, and sends you a transcript and summary. It transfers to you on request, always, or only when a call is urgent, and it replies to texts and Facebook and Instagram messages the same way.
Because it’s in the same app as your quotes, schedule and invoices, a booked no-heat call becomes a job with the customer filled in, and the invoice goes out from the same record. It’s one plan for the whole crew at a flat monthly price, with a 7-day free trial and no card. See Contruva for HVAC companies or compare full systems in the best HVAC software.
Honest limits: Contruva doesn’t do GPS tracking, route optimization or payroll, and it isn’t accounting software. A large HVAC shop with a staffed call centre and technician commissions may be better served by ServiceTitan; see Jobber vs ServiceTitan.