Exclusive HVAC leads in St. Clair County, Michigan
St. Clair County, Michigan is divided into 21 town territories covering 21 ZIP codes, listed in full below. Each ZIP goes to exactly one HVAC contractor: $149 for the first month, then $299 a month, with every lead included and no per-lead charges. Check which of these are still open →
Coverage verified 2026-08-17 against the live territory database.
Every town and ZIP code in St. Clair County
| Town | ZIP codes |
|---|---|
| Berlin | 48002 |
| Brockway | 48097 |
| Casco | 48064 |
| China | 48054 |
| Columbus | 48063 |
| Cottrellville | 48039 |
| Emmett | 48022 |
| Fort Gratiot | 48059 |
| Grant Township | 48032 |
| Greenwood | 48006 |
| Harsens Island | 48028 |
| Ira | 48023 |
| Kimball | 48074 |
| Marysville | 48040 |
| Mussey | 48014 |
| Pearl Beach | 48001 |
| Port Huron | 48060 |
| Riley | 48041 |
| Ruby | 48049 |
| Saint Clair | 48079 |
| Wales | 48027 |
How a St. Clair County territory works
When a homeowner in one of the ZIP codes above dials 844-JOB-HVAC (844-562-4822), the call is answered by an AI agent that qualifies the job, asks the homeowner to text a photo of the unit, and generates a damage estimate from that photo. You then receive one SMS containing the homeowner's name, phone number, address, problem description, the photo, and the estimate — before you call back. Nothing about that lead is sold to another contractor.
A contractor may hold up to 3 ZIP codes. Read the full mechanism on how it works, or compare the economics against shared-lead platforms in exclusive vs shared HVAC leads.
← All Michigan HVAC territories
Claim your ZIP in St. Clair County, MI
One HVAC contractor per ZIP code. $149 your first month, then $299 a month per ZIP. Every lead arrives by SMS with the homeowner's name, phone, address, a photo, and an AI damage estimate. No per-lead charges, no shared leads, cancel anytime.
Check availability →