St. Clair County, Michigan
Top-Rated HVAC Companies in St. Clair County, MI (2026)
54 HVAC companies in St. Clair County. The top 25 by score, then every city.
Who is the best HVAC company in St. Clair County, MI?
As of October 2026, the highest-scoring HVAC company in St. Clair County on TownAnswer is Dependable Heating Cooling & Refrigeration Inc. in Smiths Creek, with 78 out of 100.
Top 25 in St. Clair County
HVAC Companies by city in St. Clair County
| City | Listed | Scored | Top business |
|---|---|---|---|
| Port Huron | 14 | 12 | Stewart Adams & Son Heating & Air Conditioning LLC |
| Fort Gratiot Township | 5 | 5 | Sears Appliance Repair |
| Marine City | 4 | 3 | Sears Appliance Repair |
| Casco | 3 | 3 | Affordable Heating, Cooling & Refrigeration |
| Ira Township | 3 | 2 | KTM Heating & Cooling |
| Clay Township | 2 | 2 | S&P Heating |
| China Township | 2 | 2 | C & K Heating & Cooling LLC |
| Yale | 2 | 2 | Carter Mechanical Heating and Cooling Specialists |
| Algonac | 2 | 1 | White Heating & Cooling Inc |
| Capac | 2 | 2 | Michigan Heating and Cooling |
| Smiths Creek | 1 | 1 | Dependable Heating Cooling & Refrigeration Inc. |
| Goodells | 1 | 1 | Wade's Heating & Cooling |
| Kenockee Township | 1 | 1 | Pung Heating and Cooling |
| Lynn | 1 | 1 | Geo Tech Heating and Cooling |
| Allenton | 1 | 1 | JBrown Mechanical |
| Mussey Township | 1 | 1 | M&P Mechanical and Plumbing |
| Ira | 1 | 1 | Fuzion Mechanical LLC |
| Kimball | 1 | 1 | Air Direct Mechanical Heating and Cooling |
| Emmett | 1 | 1 | Werner Heating and Cooling |
| Burtchville Township | 1 | 1 | Advantage Heating Cooling |
| St Clair | 1 | 0 | n/a |
| Casco Township | 1 | 0 | n/a |
| Memphis | 1 | 0 | n/a |
What to ask
- Does the company hold a Michigan mechanical contractor licence?
- Will they do a load calculation before they size a new system?
- Is the quote for the installed system, with removal and permit included?
- What is the parts and labor warranty, and who registers it?
- Do they offer a maintenance plan, and what does a tune-up include?
Questions
How many HVAC companies are in St. Clair County?
Our October 2026 data lists 54 HVAC companies in St. Clair County across 23 city pages.
Who is the top-rated HVAC company in St. Clair County?
As of October 2026, the highest-scoring HVAC company in St. Clair County on TownAnswer is Dependable Heating Cooling & Refrigeration Inc. in Smiths Creek, with 78 out of 100.
Can a business pay to rank higher?
No. Every business is scored by the same rules.
TownAnswer ranks local businesses by one published method. Businesses cannot pay to change their rank. Ratings and review counts come from Google Maps, read in October 2026. Details change, so confirm hours, prices and licences with each business. How we rank.