The short answer: for a solo HVAC operator on a budget, Rosie ($49/month) is the cheapest credible flat-rate pick. If you already run Jobber, its $29/month AI Receptionist add-on is hard to argue with. ServiceTitan shops should look at Avoca first. And if you want the whole thing built, integrated and managed for you, that is the done-for-you tier — $500–$997/month.
Two things make this comparison different from the other lists ranking for this search. First, every price below was read from the vendor's own published pricing page on August 26, 2026 — not from another blog's stale table (several popular lists still quote Synthflow plans that no longer exist; more on that below). Second, we sell one of these services. PxlPeak is entry #8. We say so up front, and each entry tells you when we are the wrong choice.
How to actually choose (four questions, not eight logos)
The eight options differ on four axes. Answer these first and the list shrinks to two or three candidates:
- How are you billed? Per-minute platforms (Retell) are cheap at low volume and unpredictable in a heat wave. Per-call bundles (Smith.ai) make every call cost the same whether it is a 20-second wrong number or a 6-minute emergency triage. Flat monthly buckets (Rosie, Goodcall, Dialzara) cap your worst month — which for HVAC is the month you most need the phone answered.
- What does it do with an emergency? Anything can take a message. The question is whether the tool applies your triage rules — no-cool call with an elderly person in the home, gas smell, member vs non-member — and transfers live to your on-call tech instead of queueing a callback.
- Does it book into your dispatch software, or beside it? If appointments don't land in ServiceTitan, Housecall Pro or Jobber, someone is re-typing them. Integration claims below are only the ones each vendor states on its own site.
- Who does the work — you or them? The $29–$149 tools are self-serve: you write the prompts, set the rules, test the edge cases. The $500–$997 tier is done-for-you: the vendor builds, integrates and tunes it. Neither is wrong; they are different products for different owners.
The comparison table
Prices are each vendor's published entry point as of August 26, 2026. “Contact sales” means the vendor publishes no number at all.
| Tool | Entry price (verified) | Billing model | Field-service integrations (vendor-stated) | Best for |
|---|---|---|---|---|
| Rosie | $49/mo, 250 minutes | Flat monthly, minute buckets | Zapier only | Solo operators on a budget |
| Jobber AI Receptionist | $29/mo add-on (+ Core plan from $49/mo; free on Plus) | Flat add-on to Jobber | Native — it is Jobber | Shops already on Jobber |
| Smith.ai (AI Receptionist) | Free tier: 25 calls/mo, then $3.00/call; paid from $150/mo | Per-call bundles | Housecall Pro (dedicated page) | Per-call pricing + a human-staffed upgrade path |
| Avoca | Contact sales (no public pricing) | Custom quote | ServiceTitan (Certified App), Housecall Pro, FieldRoutes | ServiceTitan shops, larger operations |
| Arkanis | From $500/mo | Flat base + consultation tiers | Jobber, Google Calendar, QuickBooks | Trades-focused, managed setup |
| Goodcall | $79/mo per agent, unlimited minutes | Flat, metered by unique customers (100/mo, then $0.50 each) | None stated | High call volume, minute-metering averse |
| Retell AI | $0.07–$0.31/minute, $10 free credits | Per-minute usage | None stated (calendar via Cal.com/custom) | Technical owners building their own |
| PxlPeak (us) | From $997/mo | Flat monthly, done-for-you | Built per deployment (CRM, calendar, dispatch) | Owners who want it built and managed |
The eight options, honestly
1. Rosie — best budget flat-rate for solo operators
Rosie publishes the cleanest budget pricing in this list: $49/month for 250 minutes, $149/month for 1,000 minutes, $299/month for 2,000 minutes, with a 7-day free trial and a dedicated HVAC page. Calendar booking and live transfers start on the $149 Scale plan, which is realistically the plan an HVAC shop needs. The catch: Rosie states no overage rate on its pricing page, and its only stated integration is Zapier — so getting appointments into dispatch software is your plumbing to build. For a solo operator who mainly needs calls answered and messages taken reliably, it is the best dollar-for-dollar entry point here.
2. Jobber AI Receptionist — best if you already run Jobber
Jobber's AI Receptionist is a $29/month add-on to any plan, and included free on the Plus plan. Since the cheapest base plan (Core) is $49/month billed monthly, the real all-in floor is about $78/month — and the appointments land natively in the same system that runs your scheduling, quoting and invoicing, which is the whole problem other tools solve with integrations. Jobber does not publish call or minute limits for the add-on, so ask before you assume unlimited. If you are already a Jobber shop, start here; if you are not, buying Jobber just for the receptionist is the tail wagging the dog.
3. Smith.ai — best per-call pricing, with a human upgrade path
Smith.ai's AI Receptionist starts genuinely free — 25 calls/month, then $3.00/call — with paid plans from $150/month for 75 included calls (about $2.00/call, cheaper per call at volume). Per-call billing is easier to predict than per-minute when your emergency calls run long. Smith.ai also sells human-staffed receptionist plans (from $300/month for 30 calls), so you can move specific call types to people without changing vendors, and it maintains a dedicated HVAC answering page and a Housecall Pro integration. It is the most established brand in this list; you pay for that in per-call cost at high volume.
4. Avoca — best for ServiceTitan shops
Avoca is the most HVAC-native product here — it is a ServiceTitan Certified App, also lists Housecall Pro and FieldRoutes, and its site is built around home-services call handling, CSR coaching and inbound booking. The trade-off is transparency: Avoca publishes no pricing at all (the pricing URL returns a 404; every path ends in “book a demo”). If you run ServiceTitan and want deep, certified integration, it belongs at the top of your demo list — just walk in knowing you will negotiate price rather than read it.
5. Arkanis — trades-focused with a flat published base
Arkanis targets skilled trades specifically (HVAC, roofing, plumbing, landscaping) and publishes a starting price of $500/month on its HVAC page, covering the AI receptionist, lead response and CRM updates, with higher tiers scoped in consultation. Stated integrations are Jobber, Google Calendar and QuickBooks. It sits in the managed middle: more service than a self-serve tool, less than a full done-for-you build. Minute/call limits and overage terms are not published, so get them in writing.
6. Goodcall — flat rate without minute anxiety
Goodcall charges $79/month per agent with unlimited minutes — it meters by unique customers instead (100/month on Starter, then $0.50 per additional customer). For an HVAC shop, that model is worth understanding: a heat-wave week of long triage calls costs nothing extra, but a spike of new callers does. No field-service integrations are stated. It is the strongest answer in this list to “I never want to think about minutes again.”
7. Retell AI — best DIY platform, if you are technical
Retell AI is not a receptionist service; it is the platform many receptionist products are built on. Published usage pricing is $0.07–$0.31 per minute all-in ($0.055 platform + TTS + LLM + $0.015 telephony), with $10 in free credits and no monthly floor. The arithmetic is attractive: 300 three-minute calls a month is roughly $63–$279. The honest caveat is that the missing line item is you — prompt design, triage logic, calendar plumbing, testing and ongoing tuning are your job. We use platforms in this class in our own deployments; they are excellent infrastructure and not a finished product. Retell maintains a home-services page if you want its own HVAC framing.
8. PxlPeak — done-for-you, and here is when not to pick us
We are the done-for-you option: we build the agent on your number, write and test the triage rules with you, wire the integrations your deployment needs, and keep tuning it after launch — from $997/month. If you want to judge the product the way this article judges everyone else's, don't read our claims: talk to our live HVAC demo agent in your browser — no signup, and the transcripts on that page are from real test calls, verbatim.
When we are the wrong choice: if $997/month is a stretch for your call volume, a $49 Rosie plan or Jobber's $29 add-on recovers most of the missed-call value for a fraction of the price — genuinely, start there and upgrade when the phone outgrows it. We are the right choice when the cost of you personally configuring, testing and maintaining a voice agent is higher than the fee — usually multi-truck shops where the owner's hours are the scarcest resource.
What an AI answering service actually costs an HVAC company
Collapsing the table above into the three billing models, using only the vendors' published numbers:
- Flat monthly buckets — $29 to $299/month. Dialzara ($29/month for 60 minutes, $0.48/minute over), Rosie ($49–$299 by minutes), Goodcall ($79 unlimited minutes, customer-metered), Jobber's add-on ($29 on top of a Jobber plan). Predictable, and the cap is the feature: your busiest month costs the same as your slowest.
- Per-call or per-minute usage — pay for what rings. Smith.ai from $3.00/call (free tier) down to ~$1.67/call at volume; Retell at $0.07–$0.31/minute. Cheap when quiet. Do the arithmetic on your real call volume before assuming it stays cheap in July.
- Managed / done-for-you — $500 to $997+/month. Arkanis from $500, PxlPeak from $997, Avoca unpublished. You are paying for the build, the integrations and the ongoing tuning, not just the minutes.
Whether any of these pays for itself is your arithmetic, not ours: it depends on your average ticket and how many calls currently ring out. Put your own numbers into the missed-call calculator — it multiplies your call volume, answer rate and ticket size, nothing else.
Frequently asked questions
How much does an AI receptionist cost for an HVAC company?
As of August 2026, published entry prices run from $29/month (Jobber's add-on, Dialzara) to $49/month (Rosie), $79/month (Goodcall), $150/month (Smith.ai's first paid AI tier), $500/month (Arkanis), and $997/month for a done-for-you managed service (PxlPeak). Per-minute platforms like Retell AI run $0.07-$0.31 per minute instead of a monthly fee.
Which AI receptionist integrates with ServiceTitan?
Avoca is the clearest ServiceTitan choice — it is a ServiceTitan Certified App and also lists Housecall Pro and FieldRoutes. Most budget tools don't list field-service integrations at all: Rosie states only Zapier, and Arkanis lists Jobber, Google Calendar, and QuickBooks.
What is the difference between an AI receptionist and an answering service?
A traditional answering service takes a message and relays it. An AI receptionist answers the call itself: it can qualify the job, apply your triage rules, and book into your calendar or dispatch software — then hand off to a human on the conditions you define.
Is per-minute or flat-rate pricing better for an HVAC company?
It is arithmetic on your call volume. At Retell AI's published $0.07-$0.31/minute, 300 three-minute calls a month cost roughly $63-$279. A flat plan like Rosie's $149/month for 1,000 minutes beats per-minute pricing once volume is high or spiky — which is exactly what an HVAC heat wave produces.
Do any of these let me hear the AI before buying?
Some vendors offer demo lines or trials — Rosie and Dialzara publish 7-day free trials, Smith.ai has a free tier of 25 calls/month, and Retell gives $10 in free credits. PxlPeak has a live HVAC demo agent you can talk to in the browser with no signup.
When is a done-for-you service worth it over a $49 self-serve tool?
Self-serve tools leave configuration, triage rules, integration and tuning to you. A done-for-you service builds and manages all of that. If you have the time and comfort to configure it yourself, a $29-$149 tool is the better deal; if you want it handled, that is what the $500-$997/month tier buys.
Where to go from here
If you are still mapping the landscape, our guide to how AI voice agents work for HVAC companies covers the mechanics — triage logic, dispatch integration, what AI can't do — and the AI voice agent pricing guide goes deeper on the cost models. If you would rather just hear one work, the HVAC demo agent is a click away, and the broader HVAC industry page shows everything we deploy for heating and cooling companies.
Disclosure and method: PxlPeak sells the service reviewed in entry #8, which is why every other entry leads with the vendor's own published pricing and its stated integrations rather than our opinion of them. All prices were read directly from the linked vendor pricing pages on August 26, 2026; where a vendor publishes no number, the entry says so instead of estimating. Nothing in this article was provided or sponsored by any vendor listed.