Buyer's Guide: Best AI Receptionist for HVAC Companies — 9 Platforms Compared
Nine AI receptionists for residential HVAC shops, compared alphabetically: urgent-call routing, field service management (FSM) booking, and pricing when call volume rises.
Editorial review: 26 September 2026 · Futuro Corporation publishes this guide and sells Futuro AI, one of the nine options compared.
Quick Answer
The Numbers That Matter
Key Takeaways
- Price normal and peak months separately. Included minutes, per-call charges, overages and concurrency limits affect different parts of the bill.
- A flat subscription can still include a usage cap. Sameday's entry plan includes 500 minutes; Futuro AI's small-business plans include unlimited inbound calls. Confirm each quote's scope.
- Test an urgent no-heat call, a routine estimate and an unanswered technician transfer. Check that the agent follows your rules and preserves callback details.
- Distinguish booking from appointment-request capture. Watch a job appear in your own FSM during a demo, including service area, availability and technician assignment.
At a Glance
| Provider | Entry price | Booking approach | Attribute to evaluate | Potential fit |
|---|---|---|---|---|
| Avoca | Quote only | ServiceTitan integration | Connected intake | ServiceTitan teams |
| Dialzara | From $29/mo (60 min) | Confirm integration tier | Low starting subscription | Low-volume intake |
| Futuro AI | Small-business plans from $200/mo | Configured FSM/calendar connection | Managed setup; flat SMB billing | Shops outsourcing configuration |
| My AI Front Desk | $99/mo (200 voice min) | Zapier; custom options | Phone, chat and SMS | Multichannel intake |
| OnCrew | From $49/mo (100 calls) | Calendar sync; workflow handoff | Contractor alerts | On-call teams |
| Retell AI | $0.07–$0.31/min | Custom API build | Developer control | Teams with engineering support |
| Rosie | $49/mo (250 min) | Booking on higher tiers | Service-business intake | Message capture with upgrades |
| Sameday | $449/mo (500 min) | ServiceTitan scheduling | Published scheduling tiers | Connected booking |
| Smith.ai | 25 calls/mo free; Pro from $150/mo | Housecall Pro integration | Human involvement available | Teams needing escalation options |
Pricing snapshots below are dated 27 August 2026. Selected plan details were checked against current vendor pages on 26 September; confirm required features and total price before purchase.
Watch: the nine platforms in 8 minutes
A companion overview of the nine platforms, pricing models and HVAC workflows. Watch on YouTube.
- 0:00 Intro: why HVAC intake matters
- 0:15 Heatwaves, lost calls, and safety risk
- 1:00 The concurrency problem and pricing models
- 1:46 Low-cost self-serve: Dialzara
- 2:31 Budget tools: My AI Front Desk and Rosie
- 3:16 Developer platforms and contractor configurations: Retell AI and OnCrew
- 4:17 Flat-rate platforms: Futuro AI
- 4:47 Native scheduling and ServiceTitan: Sameday
- 5:18 Hybrid human fallback: Smith.ai
- 5:49 Enterprise scale and deep FSM: Avoca
- 6:19 How pricing behaves in peak weather
- 7:05 Decision matrix by truck count and needs
- 7:51 Pre-demo checklist
- 8:06 Closing: pick a tool that mirrors your workflow
The full written transcript of this video lives on the long-form article, below the player: read the transcript.
Pros & Cons — Every Platform
Avoca
- Listed ServiceTitan marketplace partner
- Connects call handling and booking with service workflows
- A tailored quote is needed for cost comparison
- Confirm contract terms, usage charges and onboarding scope
The trade-off: Evaluate the integration against your dispatch process; a marketplace listing does not establish support for every booking rule.
Dialzara
- Low entry price with recordings and summaries
- Configurable call handling and transfer options
- Entry plan includes only 60 minutes
- Verify the tier required for calendar sync and workflow connections
The trade-off: At five minutes per call, 60 minutes covers 12 calls. Use your actual call length when comparing tiers.
Futuro AI
- Configured intake, on-call routing and workflow connections
- Unlimited inbound calls on small-business plans
- Managed setup rather than an in-house build
- Higher starting subscription than several low-volume options
- Booking and escalation connections must be scoped and tested
- Configuration precedes launch; enterprise billing differs
The trade-off: Compare the configured quote with a metered plan at your volume. A quiet phone line may cost less on a smaller subscription.
My AI Front Desk
- Multiple communication tools in one subscription
- Zapier connectivity and custom integration options
- 200 voice minutes may not cover a busy month
- Overage credits and auto-reload affect spending
- Confirm booking in your actual FSM
The trade-off: Value depends on whether you need the wider bundle and how much usage falls outside its allowances.
OnCrew
- On-call routing, transcripts and contractor intake
- Per-call billing does not increase with call length
- 14-day trial
- Calls and alert texts have separate allowances
- 90-second urgent handoff is a target, not a guarantee
- Appointment capture does not establish a completed FSM booking
The trade-off: Your team still owns callback, dispatch and field decisions. Test the full handoff, including an unanswered alert.
Retell AI
- API access, templates and configurable workflows
- Pay-as-you-go pricing with 20 concurrent calls included
- Integration, testing and maintenance require an owner
- Voice, model, telephony and add-ons affect cost
The trade-off: Budget for implementation and ongoing testing as well as usage; developer control brings operational responsibility.
Rosie
- Low starting subscription with 250 included minutes
- Higher tiers add booking and transfer features
- Entry price excludes the full booking feature set
- Check minute limits and the exact dispatch-system connection
The trade-off: Compare the tier that performs your required tasks, rather than assuming the entry tier includes scheduling.
Sameday
- ServiceTitan scheduling listed on Launch and Scale
- Launch includes three locations and unlimited users
- Higher starting subscription than most listed options
- Included minutes are capped; confirm excess-usage terms
The trade-off: Scheduling may justify the subscription; the monthly plan price alone does not establish the bill for a surge month.
Smith.ai
- Housecall Pro integration documented by the vendor
- 25 live calls per month on the free plan
- Live-agent involvement available under defined terms
- Per-call allowances and overages affect peak-month cost
- Some human involvement and customization cost extra
The trade-off: Specify which calls reach a human and what each escalation costs; availability alone does not prove handling quality.
How to Choose in 60 Seconds
- Avoca: evaluate connected intake if your team runs ServiceTitan.
- Dialzara: price low-volume answering against its minute allowance.
- Futuro AI: compare a managed small-business quote if you want configuration handled for you.
- My AI Front Desk: assess the bundle if phone, chat and SMS all matter.
- OnCrew: test urgent-call handoff with your on-call team.
- Retell AI: consider a custom build if someone can maintain it.
- Rosie: compare intake and booking tiers against required tasks.
- Sameday: test ServiceTitan scheduling and confirm surge-usage terms.
- Smith.ai: define the human-escalation workflow and its charges.
For methodology, test scenarios and the missed-call model, read Best AI Receptionist for HVAC Companies (2026).
Common Questions
Choose by urgent-call routing, booking requirements and total cost at your call volume. Avoca supports ServiceTitan workflows; Dialzara offers a lower entry subscription; Futuro AI offers managed configuration. My AI Front Desk bundles communication tools, OnCrew emphasizes contractor alerts, and Retell AI supports custom development. Rosie offers tiered intake, Sameday lists ServiceTitan scheduling, and Smith.ai offers human-involvement options.
It can collect information and route a call under configured rules. Test the scenario against your escalation policy, including what happens if the technician does not answer. Documentation alone does not establish reliable emergency handling.
Illustrative model: 100 calls a week × 25% missed and never recovered × 25% booking probability = 6.25 potential jobs. At an assumed $450 per repair, that is $2,812.50 in weekly potential revenue, or $11,250 over four weeks. This is revenue before costs, not guaranteed loss or recoverable profit. Substitute your own call logs, conversion rate and job value.
Use your busy-month call count and average call length. Calculate included usage, overages, tier upgrades and human-escalation fees. Check simultaneous-call capacity separately. Metered plans can be economical at lower volume; a fixed subscription needs the right scope to be predictable.
Avoca documents a ServiceTitan partnership, Sameday lists ServiceTitan scheduling, and Smith.ai documents Housecall Pro integration. Other workflows may use a configured connection, API, calendar or middleware. Ask each vendor to demonstrate your exact booking action; an appointment request is not necessarily a completed dispatch booking.
Separate initial answering from a tested deployment. Basic setup may be quick, but service areas, booking rules, transfers and after-hours escalation still need configuration and test calls. Obtain a launch estimate for your workflow.
The Receipts
Dated pricing evidence is linked in each profile. These primary sources support the integration and plan clarifications.
Avoca's ServiceTitan marketplace listing — integration context.
Dialzara features — configurable intake and calendar connections.
My AI Front Desk pricing — included minutes, credit pool and auto-reload terms.
OnCrew pricing — call/text allowances and urgent-handoff target.
Retell AI pricing — usage components and concurrency.
Rosie plans — intake, booking and transfer tiers.
Sameday pricing — scheduling tiers and included minutes.
Smith.ai pricing, human-involvement terms and Housecall Pro integration — monthly allowances, escalation scope and booking connection.
Futuro AI pricing — small-business and enterprise plan scope.
Missed-call economics — the framework behind the illustrative calculation.