Custom AI Agents for HVAC Contractors

Why HVAC Companies Stall Around the 10 to 25 Truck Mark

Most HVAC contractors hit a predictable wall somewhere between ten and twenty-five trucks in the field. At that point the owner or general manager can no longer personally touch every dispatch decision, every quote, and every customer follow-up. The business either figures out how to systematize those functions or it stops growing and slowly loses ground to competitors who did.

The math is brutal and specific to HVAC. A missed call in July costs a contractor roughly $350 on average when you factor in diagnostic fee, potential repair revenue, and the chance that call would have become a system replacement. A $12,000 furnace-and-coil quote that sits unfollowed for a week is 50% less likely to close. A maintenance agreement customer who does not get their spring tune-up reminder is three times less likely to call you when their condenser dies in August. And the average technician is productive on-site only 55% to 65% of their paid hours, with the rest lost to drive time, parts runs, and schedule gaps.

Sentie deploys AI agents that sit on top of your existing stack, whether that is ServiceTitan, FieldEdge, Housecall Pro, Jobber, ServiceFusion, Successware, or Workiz. The agents handle the coordination and follow-up work that is currently competing for your office staff's attention, and they do it consistently across every call, every quote, and every customer. Your Success Manager configures the agents around your specific ticket sizes, customer retention programs, and local market dynamics.

Dispatch, Routing, and Peak-Season Capacity

Summer and winter peaks are where HVAC contractors make or break their year, and they are also when dispatch breaks down the hardest. A heat wave hits, the phones light up with no-cool calls, and the dispatcher is suddenly juggling emergency triage, technician skill matching, parts on trucks, and customer priority with forty open tickets on the board. Good decisions get made for the urgent ones. Everything else gets pushed.

Sentie's dispatch agents optimize assignment and routing continuously rather than at fixed intervals. When a new call comes in, the agent evaluates every technician currently in the field against the job in real time: who is closest, who has the skill level for the system type, whether they have the likely parts on their truck based on the symptom, and how the assignment affects the rest of the day's schedule. For planned work, the agent builds the next day's routes the night before, handling appointment scheduling around customer windows and clustering jobs geographically.

During peak-season overflow, the agent does something dispatchers usually cannot: it looks at every scheduled non-emergency job and identifies which can be safely rescheduled to create capacity for emergency calls. A maintenance visit can move to next week. A minor repair can shift to the end of the day. The agent presents those options to your dispatcher or executes them automatically, communicating directly with affected customers through approved messaging.

The agent also watches for opportunistic capacity. When a technician finishes a job 30 minutes early, the agent checks for nearby customers with open quotes, overdue maintenance, or outstanding follow-up visits and offers the tech a productive use of that window. This typically adds 2 to 4 billable hours per tech per week during normal seasons and significantly more during peaks.

Quote Follow-Up and System Replacement Conversion

The single largest revenue leak in most HVAC businesses is unfollowed system replacement quotes. A technician runs a diagnostic, determines the customer needs a new unit, presents good/better/best options, and leaves with a verbal yes or a promise to call back. Then the customer calls three other contractors, gets competing quotes, and the original HVAC company never hears from them again. Or worse, the customer was actually ready to buy and just needed one more touch, but nobody called.

Sentie's structured quote follow-up sequences eliminate that leak completely. The moment a quote is generated in your field service software, the agent takes ownership of the follow-up sequence. Within 24 hours, the customer gets a branded email from your company recapping the diagnosis, the recommended system, the options presented, and any financing or rebate programs that apply. The message includes a one-click scheduling link and, for higher-tier options, manufacturer tax credit details.

If the customer does not respond, the agent follows up again on day 3, day 7, day 14, and day 30 with messaging that evolves based on how much time has passed. Early touches reinforce the urgency of the failure mode the tech identified. Later touches shift to seasonal framing, utility rebate expiration dates, or financing promotions. Every touch includes the scheduling link and a callback request option.

The agent also segments quotes by size and routes them appropriately. A $15,000 replacement is flagged for a personal follow-up call from your comfort advisor or sales team within 48 hours. A $300 repair recommendation runs entirely through automated sequences. High-value quotes get richer touchpoints, including case studies and testimonials from similar customers when relevant.

HVAC contractors using Sentie quote follow-up consistently report a 25% to 40% lift in replacement close rates, which on a typical $10,000 average ticket is enormous revenue recovery from work that was already qualified and priced.

Maintenance Agreements and Recurring Revenue Programs

Maintenance agreements are the single healthiest line on an HVAC P&L: predictable cash flow, better customer retention, priority scheduling for members during peak season, and first right of refusal on replacements when the equipment finally dies. Yet most contractors under-invest in growing and retaining their member base because the administrative work of reminders, renewals, and scheduling is too manual to scale.

Sentie's maintenance agreement agents handle the full lifecycle automatically. For new members, the agent captures the equipment details, the visit schedule (typically spring AC and fall heat), the member benefits, and the renewal date. As each visit window approaches, the agent proactively reaches out to customers to schedule their tune-up, offering multiple open slots and handling the confirmation and reminder cycle without office staff involvement.

For renewals, the agent starts the conversation 60 days before expiration with a recap of the visits performed, any repairs caught early under the agreement, and the renewal terms. Customers can renew with a single click or respond with questions that get routed to your team. The agent also flags at-risk members: customers whose equipment is aging out, who have had frequent callbacks, or who declined recommended repairs during their last visit. These get special retention handling from your team.

For non-members, the agent identifies candidates and runs conversion campaigns. A customer who just paid $800 for a repair is a prime maintenance agreement prospect; the agent sends a targeted offer framed around the repair they just had done. Customers whose equipment is 8 to 12 years old get replacement-focused maintenance offers that also qualify them for priority on upcoming quote follow-up.

The result for most contractors is 15% to 30% growth in active maintenance agreements within the first year, with retention rates that were previously 70% climbing to 85% or higher.

Inflation Reduction Act Tax Credits and the Heat Pump Wave

The Inflation Reduction Act fundamentally changed the economics of HVAC replacement and contractors who systematically surface the available credits on every quote close significantly more deals. The 25C Energy Efficient Home Improvement Credit gives homeowners up to $2,000 back annually for qualifying heat pump installations, with additional credits stacking on heat pump water heaters, electrical panel upgrades, and air sealing. State and utility programs layer on top, often pushing the total incentive package above $5,000 on a single replacement project.

The problem is that most HVAC quotes never mention the relevant credits. Either the technician does not know which models qualify, or the office staff does not have time to research each customer's specific eligibility, or the proposal software does not flag the opportunity. Customers comparing your quote against a competitor's see two similar prices but no compelling reason to pick yours, when the right framing could position your higher-efficiency option as the cheaper net option after credits.

Sentie's quote enrichment agent attaches every applicable incentive to every quote automatically. The agent maintains a current rules database for federal 25C credits, state programs, utility rebates, and manufacturer promotions. When a quote is generated, the agent cross-references the recommended equipment against the customer's address (for utility rebates and state programs) and against eligibility rules for federal credits. The output is a one-page summary attached to the proposal that shows gross price, available incentives, and net cost to the customer.

For heat pump replacements specifically, the agent compares the high-efficiency option against the standard option side by side with credits applied. A common pattern: the standard 14 SEER unit has no federal incentive while the qualifying heat pump unlocks $2,000 in 25C credits plus a state rebate, making the heat pump cheaper net cost despite a higher list price. Customers consistently say yes to that math when it is presented clearly. Contractors who add this systematic incentive capture see heat pump mix shift from 5 to 10% of replacements to 25 to 40% of replacements, with corresponding ticket size growth.

The agent also tracks rebate paperwork through to receipt. Many homeowners abandon rebate claims because the forms are confusing or the deadlines pass. The agent generates pre-filled rebate forms with the customer's specific equipment details, sends reminders if the customer has not submitted, and helps your office staff handle any rebate processing questions that come back.

Programmatic Access for Engineering Teams

For HVAC Contractors teams with technical operators who want to drive Sentie from code, the same custom AI agents are accessible via a full developer surface. The Sentie REST API at api.sentie.io/v1 exposes endpoints for assessments, agents, capabilities, and integrations, all secured with bearer-token auth. The sentie CLI wraps the API for terminals and CI pipelines.

Most custom AI agent companies do not publish these surfaces. Sentie does, because LLM discovery is a primary distribution channel and because a serious engineering buyer should be able to evaluate Sentie before booking a sales call. The full machine-readable API schema lives at sentie.io/openapi.json.

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