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St Charles, Saginaw County, Michigan
4 HVAC companies with a St Charles address, scored out of 100. Updated October 2026.
As of October 2026, the highest-scoring HVAC company in St Charles, MI on TownAnswer is M J Mechanical, with a score of 46 out of 100 (4.5 stars from 8 Google reviews). Next are Gilmour Heating & Cooling (37). We scored 2 HVAC companies with a St Charles address and list 2 more with no Google rating yet.
This page has fewer than three scored businesses, so we keep it out of search results until it has more. The nearest city pages are listed below.
Our October 2026 pull of Google Maps found 4 HVAC companies with a St Charles mailing address. 1 list a website, 0 have claimed their Google listing and 0 take online bookings.
None belongs to a business with three or more Michigan locations in our data.
Every business is scored by the same rules. A business cannot pay for a higher place.
The most-reviewed HVAC company in St Charles is M J Mechanical with 8 Google reviews. The median rating among scored listings is 5.0 stars.
Highest score first. Tap a name for its website, or Score details for the full breakdown.
The 100-point TownAnswer score. Every HVAC company here is checked on the same 5 parts: reputation (26 points), review volume (18), focus (14), profile (22) and verified owner (20). Nobody pays to rank. How we rank
★ 4.5 8 Google reviews
Opens before 7 AM
M J Mechanical lists its address as 11787 Prior Rd, St Charles, MI 48655. That is 3.0 miles northwest of the St Charles city center. Its Google category is "Heating contractor". After we adjust for review count, its 4.5 stars count as 4.55. The owner has not claimed the Google listing.
★ 5.0 2 Google reviews
Opens before 7 AMOpen after 8 PMWeekend hours
Gilmour Heating & Cooling is at 205 W Maple St, St Charles, MI 48655. That is 1.7 miles west of the St Charles city center. Google files it under "General contractor". Its 5.0 stars rest on 2 reviews, which our method reads as 4.62 after the review-count adjustment. The owner has not claimed the Google listing.
These businesses have a St Charles address but no Google rating, so they carry no score.
No Google rating yet
You will find Baker Refrigeration at 5050 W Birch Run Rd, St Charles, MI 48655. That is 5.8 miles southeast of the St Charles city center. Google files it under "Air conditioning contractor" and also Appliance repair service. The owner has not claimed the Google listing.
LIBERTY HEATING & COOLING INC. lists St Charles without a street address. That is 1.6 miles west of the St Charles city center. Its Google category is "HVAC contractor". The owner has not claimed the Google listing.
| # | Business | Score | Grade | Rating | Reviews | Street |
|---|---|---|---|---|---|---|
| 1 | M J Mechanical | 46 | C- | 4.5 | 8 | 11787 Prior Rd |
| 2 | Gilmour Heating & Cooling | 37 | C- | 5.0 | 2 | 205 W Maple St |
Heating and cooling work in Michigan needs a mechanical contractor licence from LARA. Check the company on LARA Verify a License.
A new furnace or air conditioner should be sized for your house. Ask whether the contractor runs a load calculation (often called Manual J) or sizes by the old unit.
Ask for a written quote that lists the model numbers, the removal of the old unit, the permit and any duct or electrical work.
Many equipment warranties need registration within a set time after install. Ask who registers it.
Ask what a tune-up includes. A furnace check before winter is common in Michigan.
| City | Distance | HVAC Companies | Top score |
|---|---|---|---|
| Swan Creek Township | 3.7 mi north | 1 | 46 |
| Chesaning | 7.6 mi south | 2 | 37 |
| Thomas Township | 9.9 mi north | 1 | 50 |
| Maple Grove Township | 10.1 mi southeast | 2 | 66 |
| Oakley | 10.8 mi south | 1 | 49 |
| Hemlock | 10.9 mi northwest | 4 | 60 |
| Burt | 11.3 mi east | 1 | 52 |
| Saginaw Township | 11.6 mi northeast | 1 | 45 |
Personal Injury Attorneys 1Roofers 1Electricians 3Dentists 2Photographers 2Restaurants 6Real Estate Brokerages 1Everything in St CharlesHVAC Companies in Saginaw County
Our October 2026 data lists 4 HVAC companies with a St Charles mailing address. 2 have a Google rating and are scored. A business can be missing, so treat the count as a floor.
M J Mechanical has the highest TownAnswer score in St Charles: 46 out of 100, from 4.5 stars and 8 Google reviews. Scores change when listings change.
Reputation (26 points) is the Google rating adjusted for how many reviews it rests on. Review volume adds up to 18, how closely the business matches the trade up to 14, profile facts such as website, phone, hours, photos and a claimed listing up to 22, and a profile the owner verified with TownAnswer adds 20.
No. Every business is scored by the same rules, and no payment changes a score or a place on a list.
Nearby city pages: Swan Creek Township (3.7 miles), Chesaning (7.6 miles), Thomas Township (9.9 miles), Maple Grove Township (10.1 miles).
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?
St Charles is in Saginaw County. See every HVAC company in the county on the Saginaw County page.
We refresh the data from Google Maps and change the date on the page only when the data changes. This version uses data read in October 2026.
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.
