Our Story
A focused agency for HVAC contractors who are done losing leads.
GrindSupply is a single-founder agency. We build and run AI-powered lead qualification, booking, and follow-up systems for HVAC companies — the workflows that turn web forms and missed calls into booked jobs without a human on the line.
Most HVAC contractors have the same problem: they paid to generate the lead and then lost it to a slow response. The national average for a first response to a web lead is 47 hours. The average window before that lead books with someone else is five minutes.
We fix that. Two to three weeks from kickoff, your inbound lead flow is automated, your estimate follow-up is running, and your dispatch team is looking at qualified booked jobs — not cold web submissions and voicemail boxes.
Who Hires Us
- HVAC owner-operators running roughly 3–15 techs, doing $1.5M–$15M/year in service revenue.
- Mid-sized metros and competitive suburbs where speed-to-lead decides which company books the job.
- Losing 30%+ of inbound to slow response — the five-minute window where most leads go cold is bleeding your marketing spend.
- Already running ServiceTitan, Housecall Pro, or Jobber — or willing to adopt a system so the workflow has somewhere to land.
- Booking enough volume that one missed job per week is a real margin problem, not a rounding error.
Not a fit if you're pre-revenue, only doing new construction, or just want a DIY chatbot widget.
Founder
Calibus Kingston
Founder, GrindSupply AI Automation Agency
Calibus runs GrindSupply as a hands-on engagement. He designs each client's conversation flows, wires the integrations, and handles the retainer delivery personally. If you book a discovery call you will speak to him directly. Every system GrindSupply builds is one he could run himself — the scope stays tight so the quality stays high.