An HVAC phone does not ring evenly. It goes quiet in a mild April, then a heat wave or the first cold night fills the line with no-cool and no-heat calls while every tech is already on a roof or in a crawl space. The caller with a dead furnace at 9 p.m. will try the next company on Google if nobody answers. An AI receptionist is meant to pick up those calls, sort the real emergencies from the tune-up requests, and put a job on your board before the caller dials someone else.
Our best AI receptionists for small business guide covers every trade. This page is only for residential and light commercial HVAC companies with roughly 2 to 25 techs, dispatching from Jobber, Housecall Pro, ServiceTitan or a shared calendar.
How we put this list together: researched from vendor pages, not hands-on tested. On November 5, 2026 we read each vendor’s pricing page, help center and HVAC or ServiceTitan page, then priced the same two call volumes on each tool. We have not run any of these on a live HVAC line, so there are no scores on this page. How we test and research explains how this kind of page differs from a hands-on review.
The short list, matched to how you dispatch
The software you dispatch from narrows the choice more than any feature list. A receptionist that writes the job straight onto your board saves the office from retyping every overnight call in the morning; one that only takes messages does not.
| Tool | Best for | Price from | Bills by | Books into | Main limit |
|---|---|---|---|---|---|
| Jobber Receptionist | HVAC shops already on Jobber | $29/mo add-on for 30 conversations | Conversations (calls and texts) | Jobber, through your online booking settings | Needs a Jobber plan and a dedicated Jobber number |
| Housecall Pro CSR AI | Shops already on Housecall Pro | Not published (paid add-on) | Not published | Housecall Pro | You have to ask sales for a price |
| Sameday AI | ServiceTitan shops that want booking on the call | $449/mo for 500 minutes | Minutes | ServiceTitan (certified app), Housecall Pro, Jobber and others | Overage rate is not printed |
| AgentZap | ServiceTitan or FieldEdge shops on a smaller budget | $109/mo for 150 minutes | Minutes | ServiceTitan dispatch board (vendor also lists Housecall Pro, Jobber, FieldEdge) | $499 setup fee; integration work may cost extra below the Managed plan |
| Avoca | Multi-location ServiceTitan companies with a CSR team | Not published | Not published | ServiceTitan | Sales-led, no public pricing |
| Rosie | Calendar-only shops with Spanish-speaking callers | $49/mo for 250 minutes | Minutes | Your calendar (Zapier for other apps) | Booking and transfers need Scale at $149/mo |
Prices checked November 5, 2026, monthly billing, US dollars.
Four things that make HVAC calls harder to answer
A generic receptionist can take a name and number for any business. HVAC calls carry more risk and more money than most, and four facts explain why the setup matters.
- Demand comes in seasonal spikes. The Bureau of Labor Statistics counts 440,900 HVAC mechanic and installer jobs in 2025, with 68% of them at plumbing, heating and air-conditioning contractors, and notes these workers “sometimes work overtime or irregular schedules during peak heating and cooling seasons.” Those are exactly the weeks when the office is overloaded and calls roll to voicemail.
- Some calls are safety calls, not sales calls. A caller who smells gas or has a carbon monoxide alarm going off needs to be told to get out and call the gas utility or 911, not offered a Thursday slot. AgentZap’s HVAC page lists “no heat, AC failure, gas smell, and carbon monoxide” among the situations it flags as urgent. Whatever tool you pick, you write these rules yourself.
- Each call is worth more than the software. Angi’s HVAC repair guide says most people pay $350 for a repair, the first service call alone runs $100 to $250, and repairs outside normal hours add $40 to $80 an hour. A replacement AC unit runs $3,800 to $7,500. One booked repair covers about a year of Jobber’s $29 add-on.
- The job has to land in dispatch software. HVAC shops schedule in field service tools, not Google Calendar. Sameday says it is a certified ServiceTitan app that books during the call, AgentZap says it books “directly into your ServiceTitan dispatch board via the Open API,” and Avoca says it keeps ServiceTitan customer and job data updated in real time. General receptionists like Rosie and Upfirst list calendars and Zapier instead.
To put your own numbers in, our missed call cost calculator works out what unanswered calls cost at your average ticket and close rate.
Jobber Receptionist: the default for Jobber shops
Best for: 2 to 10 tech HVAC companies that already run quotes, jobs and invoices in Jobber.
Jobber’s help center lists Receptionist as a $29/mo add-on that includes 30 conversations, with each extra conversation at $0.79, and unlimited use on the Plus plan ($399 to $499 a month depending on billing). Calls flagged as spam or with no real interaction do not count. It books visits during the call using the online booking settings you already set up, and you can switch it on only after hours, on weekends or after a set number of rings.
For emergencies, you add trigger words such as “emergency” or “urgent” to an escalation policy, and Receptionist either transfers the call or texts your escalation contact a transcript snippet with a callback link. Our Jobber pricing breakdown covers the base plans you need first.
Limit: Jobber requires a dedicated Jobber phone number (you can forward your existing number to it), and the escalation contact must be a different number from that line. There is no built-in gas or CO detection; it only reacts to the words you list.
Housecall Pro CSR AI: the in-house option for Housecall Pro users
Best for: HVAC shops on Housecall Pro that want the receptionist inside the same app as the schedule.
Housecall Pro says CSR AI “answers calls and books jobs 24/7,” covering nights, weekends and holidays. The chat version is included on all plans, but the page states that 24/7 call answering is a paid feature sold separately, and neither the AI Team page nor the pricing page shows a price. The base plans run $79, $189 and $329 a month on monthly billing ($59, $149 and $299 billed annually).
We dug into what is public and what is quoted in our Housecall Pro CSR AI pricing page, and compared it with Jobber’s tool in Jobber Receptionist vs Housecall Pro CSR AI.
Limit: no public price, and the feature page does not describe how emergencies are handled, so ask for both in the sales call.
Sameday AI: booking on the call for ServiceTitan shops
Best for: ServiceTitan shops with steady volume that want jobs booked while the caller is still on the line.
Sameday’s pricing page lists Launch at $449/mo starting with 500 minutes and 3 locations, and Scale at $789/mo with 1,000 minutes and multiple locations. Both include English and Spanish and “Pro scheduling” with ServiceTitan. The vendor says it books natively into ServiceTitan as a certified app, and also into Housecall Pro, Jobber, Service Fusion, FieldRoutes and FieldPulse.
Limit: the entry price is several times the budget tools, and the page says overage is billed at your plan’s per-minute rate without printing that rate. No free trial is listed; the page offers a demo instead.
AgentZap: a cheaper route into ServiceTitan, with setup costs
Best for: smaller ServiceTitan, FieldEdge or Housecall Pro shops that want HVAC triage rules without a $449 plan.
AgentZap’s HVAC page describes routing by location, by heating vs cooling vs commercial, or by on-call schedule, with an instant text to the on-call tech, and it books tune-ups and filter changes. Its ServiceTitan page says it recognizes returning callers by phone number and creates the job with customer, service type, location and notes. Pricing: Starter $109/mo for 150 minutes ($0.85 per extra minute), Professional $295/mo for 450 minutes ($0.75), Business $899/mo for 1,500 minutes ($0.70). A one-time $499 setup fee applies, waived on a 6-month Professional term.
Limit: ServiceTitan integration fees are named as included only on the Managed plan ($899/mo on a 6-month term). On the other plans the pricing page says some integrations “may require additional setup” outside the setup fee, with no price given. Get that number in writing.
Avoca: for multi-location companies with a CSR team
Best for: larger ServiceTitan operators that want AI to take part of the call volume while human CSRs keep the rest.
Avoca’s HVAC page covers 24/7 inbound answering with Spanish and human transfer, outbound campaigns for maintenance scheduling and speed-to-lead, call coaching dashboards for supervisors, and a ServiceTitan sync that removes double entry. It is built around CSR teams rather than owner-operators.
Limit: no pricing is published, and the page gives no booking-rate figure, so a 3-truck shop will likely find it oversized.
Rosie: Spanish calls on a calendar budget
Best for: owner-run shops that book from Google Calendar or similar and get calls in Spanish.
Rosie lists “English & Spanish on every call” on every plan. Professional is $49/mo for 250 minutes but only texts callers a booking link. Scale at $149/mo for 1,000 minutes adds direct calendar booking and warm or live transfers, which is what you want for no-heat calls. Growth at $299/mo for 2,000 minutes adds waterfall transfers that try several people in turn. We compared it with two rivals in Rosie vs Upfirst vs Goodcall.
Limit: no Jobber, Housecall Pro or ServiceTitan integration is listed, only Zapier, so jobs still need to be entered in your dispatch software.
Also considered: Upfirst ($24.95/mo for 30 calls, $1.50 per extra call on Starter) is the cheapest way to stop overnight voicemails, but its pricing page lists calendars and Zapier, not field service software. My AI Front Desk ($99/mo for 200 minutes, $0.25 per extra minute) has an HVAC page that talks about dispatching to an on-call tech, but names HubSpot, Salesforce and Pipedrive rather than HVAC software.
Monthly cost at 150 and 400 calls
Vendors bill by conversations, calls or minutes, so we priced two typical months: 150 calls (a quiet shoulder-season month for a small shop) and 400 calls (a peak month). For minute-billed tools we assumed 3 minutes per call. This is our arithmetic at list price, not a vendor quote.
| Tool and plan | 150 calls (450 min) | 400 calls (1,200 min) | Notes |
|---|---|---|---|
| Upfirst | $119.95 (Premium + 60 calls at $1) | $234.95 (Pro + 100 calls at $0.75) | No field service integration |
| Jobber Receptionist | $123.80 ($29 + 120 at $0.79) | $321.30 ($29 + 370 at $0.79) | Plus a Jobber plan; unlimited on Plus |
| Rosie | $149 (Scale) | $299 (Growth) | Both within plan minutes |
| AgentZap | $295 (Professional) | $857.50 (Professional + 750 min at $0.75) | Plus $499 setup unless on a 6-month term |
| Sameday AI | $449 (Launch) | $789 + 200 overage minutes | Overage rate not published |
| Housecall Pro CSR AI, Avoca | Not published | Ask for a quote at your volume | |
Prices checked November 5, 2026, monthly billing. Jobber counts a text thread as one conversation for 24 hours, so text-heavy months cost more.
Two patterns stand out. Per-conversation billing (Jobber) grows quickly in a peak month, and minute plans with high overage (AgentZap Professional) can cost more than the next plan up, so check the tier above before a heat wave. If you are still deciding whether software or people should answer, read AI receptionist vs answering service.
Write your emergency rules before the first call
None of these tools knows your on-call rotation, service area or what counts as an emergency in your shop until you tell it. Settle these before you forward a single call:
- Gas smell or CO alarm: the script tells the caller to leave the building and call the gas utility or 911, then alerts the owner. The AI should never troubleshoot these.
- No heat with an elderly person, infant or medical need in the home: live transfer or page the on-call tech immediately.
- No heat or no cooling otherwise: book the first emergency slot and text the on-call tech, quoting your after-hours fee so there are no surprises on arrival.
- Tune-ups, filters, estimates and maintenance plan visits: book in normal hours with no after-hours page.
- Billing, warranty and “is my tech still coming?”: look up the job if the tool can, otherwise take a message for the office.
Also collect the details a tech needs before rolling a truck: address, system type (furnace, heat pump, central AC, boiler), equipment age if known, whether the unit is under warranty or a maintenance plan, and a good callback number. Decide too whether the AI says it is an AI; our guide on whether your AI receptionist should say it’s AI covers the state rules and scripts. Once jobs are flowing, the same customers are your best source of reviews, and our guide to getting more Google reviews for HVAC picks up from there.
So which one should an HVAC shop pick?
- On Jobber: start with Jobber Receptionist at $29/mo, set urgent keywords and an escalation number, and watch the conversation count in your first peak month.
- On Housecall Pro: ask for a CSR AI quote at your call volume and how it handles emergencies, then compare it with Jobber’s numbers above.
- On ServiceTitan with 5+ techs: demo Sameday ($449/mo) and AgentZap ($109/mo plus setup and any integration fee) and compare written quotes for your peak-month minutes. Look at Avoca if you run several locations with a CSR team.
- No field service software yet: Rosie Scale ($149/mo) if you need Spanish and live transfers, Upfirst if you just want overnight calls answered for under $60 a month.
Other trades are covered in our AI receptionists for auto repair shops guide and the rest of the AI receptionists hub.
Sources
- Jobber Help Center: Receptionist (powered by Jobber AI)
- Jobber: AI Receptionist features
- Jobber pricing
- Housecall Pro: AI Team and CSR AI
- Housecall Pro pricing
- Sameday AI pricing
- Sameday AI: integrations for home services
- AgentZap: HVAC companies
- AgentZap: ServiceTitan integration
- AgentZap pricing
- Avoca: HVAC
- Rosie pricing
- Upfirst pricing
- My AI Front Desk pricing
- My AI Front Desk: HVAC services
- Angi: how much do HVAC repairs cost
- BLS Occupational Outlook Handbook: heating, air conditioning and refrigeration mechanics and installers
