A homeowner's AC fails at 9pm on a Friday. They call three companies. Two go to voicemail. The third answers — except it's not a person, it's an AI agent named "Karen," and she books the job before the homeowner even finishes describing the noise.
That's not a hypothetical. It's what happened more than 1,300 times in three months at Bill Joplin's Air Conditioning and Heating, a Dallas-Fort Worth HVAC company that quietly became one of the most-cited proof points for AI in the home services industry this year.
Across the trades — HVAC, plumbing, electrical, garage doors — a quiet shift is underway. Companies running on ServiceTitan, the dominant field service management platform for residential contractors, are turning on AI Agents and an agentic dispatch layer called the Max Program. The early results, published directly by ServiceTitan and several of its customers between January and June 2026, are specific enough to take seriously — and aggressive enough that competitors are starting to ask whether they can afford not to follow. [DATO A VERIFICAR — vendor-published results, not independently audited]
What This Automation Actually Does
ServiceTitan's AI Agent is a voice-based system that answers inbound calls for home service businesses, has a real conversation with the caller, diagnoses the basic nature of the request, checks technician availability, and books the appointment directly into the company's existing ServiceTitan dispatch board — without a human touching the call. The Max Program extends this into a broader "agentic command center" (branded Atlas internally at some adopters) that also handles online booking flows, follow-ups, and parts of the dispatch-to-invoice pipeline.
It's positioned squarely against the oldest bottleneck in the trades: missed calls. Industry estimates have long put missed-call rates at home service businesses between 20-30% during peak season, and every missed call is a missed job. The AI Agent's job is simply to stop letting the phone ring out.
How It Works in Practice
At Bill Joplin's, the AI Agent (internally nicknamed "Karen") went live in roughly 20 minutes of setup time — connected directly to the company's existing ServiceTitan account, with no new hardware or separate software stack. From there, Karen handles calls largely on her own: she averages about three minutes per call, comparable to a human customer service rep, and resolves 72% of calls without any human stepping in. The remaining calls — usually more complex diagnostic questions or pricing negotiations — get escalated to a live CSR.
"We didn't expect an AI agent to sound this natural on the phone," said Randi Thompson, Service Operations Manager at Bill Joplin's, in ServiceTitan's June 2026 case study. Vincent Payen, SVP of Product at ServiceTitan, framed the rollout as proof that voice AI in the trades has crossed from novelty into operational tool. [DATO A VERIFICAR]
At Team Rooter, a plumbing company in Sun Valley, California, the Max Program was applied more to the online booking funnel than the phone line. CEO Eduard Arakelyan reported that online booking conversion climbed from 61% to 66% after adoption — and December 2025 became the company's highest-revenue month in nine years.
The Results
The numbers worth sitting with: [DATO A VERIFICAR — self-reported by ServiceTitan and customers]
- Bill Joplin's: over 1,300 calls handled by the AI Agent in roughly three months, more than 90% resulting in a booked job, 72% completed with zero human involvement, an estimated $74,000 in incremental booked revenue, and roughly $23,000 in reduced operating costs from avoided seasonal hiring.
- Team Rooter: booking conversion up 5 points (61% to 66%), revenue up 18% year-over-year, average ticket size up 39% year-over-year.
- Aggregate Max Program cohort (ServiceTitan, June 2026): call booking rates more than 500 basis points higher, and close rates more than 1,000 basis points higher, than comparable locations not using Max. The number of locations live on Max more than doubled in ServiceTitan's fiscal Q1 (ended April 30, 2026).
Context matters here. ServiceTitan's own 2026 Residential State of the Trades Report — a survey of 1,000 residential contractors conducted with Thrive Analytics — found that 74% of contractors already see AI as an efficiency engine for their business, yet only around 25% are actually using it today. That gap is the real story: most of the industry agrees AI matters, almost none of it has deployed anything yet.
Luke Peluso of Quality Service Company, an early adopter of ServiceTitan's Atlas agentic command center, reported that nearly 30% of his bookings now flow end-to-end with zero human involvement. [DATO A VERIFICAR]
Tools You'll Need
| Tool | Role | Notes |
|---|---|---|
| ServiceTitan | Core field service management platform | Required base platform — AI Agent and Max are add-ons to an existing account |
| ServiceTitan AI Voice Agent | Answers and books inbound calls | Enterprise pricing, sales-contact only. [REQUIERE VERIFICACIÓN — no public pricing found] |
| Max Program / Atlas | Agentic dispatch and booking layer | Rolling out to ServiceTitan customers in phases through 2026 |
Who Should Use This
This isn't a DIY automation any contractor can wire up over a weekend — it's a vendor-native capability layered on top of an existing ServiceTitan deployment. It makes the most sense for residential trades businesses (HVAC, plumbing, electrical, garage door, pest control) that are already running ServiceTitan, are losing jobs to missed or slow-answered calls, and have enough call volume that a 70%+ automation rate translates into real labor savings rather than a marginal tweak.
It's less of a fit for businesses still on spreadsheets or a smaller field-service tool — the AI layer assumes ServiceTitan's data model is already the operational backbone.
Want More Real-World AI Case Studies?
This is one of dozens of verified automation case studies we're building at Sityos AI — real companies, real numbers, real tools, with every vendor claim flagged where independent verification isn't yet available. If you're evaluating AI for your own field service or trades business, our growing library of Casos de Uso is the place to see what's actually working before you commit budget to it.
Frequently Asked Questions
Is ServiceTitan's AI Agent the same as a regular chatbot?
No. It's a voice-based phone agent designed specifically to answer live calls, hold a natural conversation, and book real appointments into the dispatch system — not a website chat widget.
Does this replace customer service staff entirely?
Not at the companies cited here. Bill Joplin's still routes about 28% of calls to a human CSR; the AI Agent absorbs the routine bookings so staff can focus on complex or high-value calls.
What does it cost?
ServiceTitan does not publish public pricing for the AI Agent or Max Program — both are sold as enterprise add-ons via direct sales contact. [REQUIERE VERIFICACIÓN]
The trades have spent two decades digitizing dispatch, invoicing, and scheduling. The phone call — the actual front door of the business — was the last analog piece. ServiceTitan's bet, and the early numbers from its customers, suggest that piece is now closing too.