HVAC Automation

AI automation for HVAC contractors — miss fewer calls, book more jobs.

GrindSupply builds and runs the four systems HVAC contractors leak the most money on: missed-call text-back so an unanswered ring turns into a booked conversation, appointment reminders that cut no-shows without a human on the phone, dispatch routing that gets the right tech on the right job without a clipboard, and review automation that lifts your Google ranking on autopilot after every completed job.

Vertical 01 — Missed-call text-back

Missed-call text-back

An AI voice agent that picks up every inbound call to your main line — day, night, weekends, holidays. It greets the caller by name when the CRM has it, asks the three or four questions your office team actually uses to qualify a job (system type, urgency, address, callback preference), and either books the call onto your dispatcher's calendar in real time or hands a clean transcript to whoever is on call. The voice is conversational, not robotic; callers don't realise they're talking to a system until it offers to transfer them. See the full system detail on the Services page.

ROI Hook Recovers the ~38% of inbound that currently goes to voicemail while your techs are on a roof — typically $4–8k/week once the missed-call sequence is live for a 3–15 tech shop.
Vertical 02 — Appointment reminders

Appointment reminders & booking

When a homeowner fills out a web form at 11:40pm — between the kids' bedtime and a Saturday AC failure — they do not want to wait until your office opens. The after-hours flow answers the form, qualifies the job, and offers a real available slot from your dispatch calendar before the lead goes cold. If the slot is rejected it offers the next one; if the lead goes quiet, a text-back sequence kicks in within 90 seconds so the conversation stays alive. See the full system detail on the Services page.

ROI Hook Closes the five-minute window where 80% of web leads book with whoever responded first — typically 2–4 additional booked jobs/week for a shop doing $1.5M+ in service revenue.
Vertical 03 — Dispatch routing

Dispatch routing & CRM follow-up

Every lead and every estimate lands in a structured pipeline with stages your team actually uses: new, qualified, estimate sent, won, lost. Estimate follow-ups go out on an automated cadence — day 2, day 5, day 10 — with the right nudge based on what the customer has or has not opened. Old customers who have not booked in 12+ months get a seasonal reactivation nudge. Nothing is sent that a human does not approve during the first month; after that, the cadence is tuned and your team only intervenes on edge cases. See the full system detail on the Services page.

ROI Hook Recovers 15–25% of estimates that would otherwise have gone cold — for a shop sending 40 estimates/month at a 30% close rate, that is typically $18–30k/month in revenue the funnel was already producing.
Vertical 04 — Review automation

Review automation

After a job is marked complete in ServiceTitan or Housecall Pro, the customer gets a text the next morning with a one-tap review link to Google — timed for the moment they are most willing to share. Customers who indicate an issue — either by replying to the text or by leaving a 1–3 star review — get routed to a private channel so you hear about it before it hits your public profile. Happy customers get the public ask; unhappy customers get the recovery flow. Steady, compounding lift to your local-map ranking. See the full system detail on the Services page.

ROI Hook A 50-review lift from 4.2★ to 4.6★ on Google typically adds 8–15% inbound call volume within 90 days — paid search and LSA spend that used to compensate for weak reviews stops being load-bearing.
How this fits the engagement

One setup. One retainer. Four systems running.

All four verticals run on the same engagement: a $2,500 setup that ships in two to three weeks, plus a $750/month retainer that keeps conversation flows tuned, sequences fresh, and integration tweaks turned around in 24 business hours. There is no per-vertical upcharge. If you only need one of the four, we scope to that — but most contractors recover more by stacking two or three because the missed-call text-back and the dispatch routing compound on each other.

Who this is for

Not a fit if you're pre-revenue, only doing new construction, or just shopping for a DIY chatbot widget.

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