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Williamston, Ingham County, Michigan
1 HVAC company with a Williamston address, scored out of 100. Updated October 2026.
As of October 2026, the highest-scoring HVAC company in Williamston, MI on TownAnswer is GLS Heating & Air Conditioning, Inc., with a score of 45 out of 100 (3.4 stars from 17 Google reviews). We scored 1 HVAC company with a Williamston address.
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 1 HVAC company with a Williamston mailing address. 1 list a website, 1 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 Williamston is GLS Heating & Air Conditioning, Inc. with 17 Google reviews. The median rating among scored listings is 3.4 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
Open after 8 PMWeekend hoursClaimed on Google
You will find GLS Heating & Air Conditioning, Inc. at 123 N Cedar St, Williamston, MI 48895. That is 0.4 miles north of the Williamston city center. Google files it under "HVAC contractor" and also Air conditioning contractor, Air conditioning repair service, Air conditioning system supplier. Its 3.4 stars rest on 17 reviews, which our method reads as 3.95 after the review-count adjustment.
| # | Business | Score | Grade | Rating | Reviews | Street |
|---|---|---|---|---|---|---|
| 1 | GLS Heating & Air Conditioning, Inc. | 45 | C- | 3.4 | 17 | 123 N Cedar St |
Williamston has 3,807 residents and 1,794 households (ACS 2024 5-year estimates for Williamston city). 54.5 percent of its homes were built before 1980, and the median home was built in 1,977.
66.4 percent of homes are owner-occupied. The median home value is $226,800. Older housing stock tends to need more plumbing, roofing, electrical and water damage work, so these figures help explain local demand. They do not measure it.
Our October 2026 data has 1 HVAC company with a Williamston mailing address: 2.6 per 10,000 residents. A mailing city can differ from the city limits, so treat the ratio as a guide.
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 |
|---|---|---|---|
| Leroy Township | 4.8 mi southeast | 1 | 50 |
| Webberville | 5.0 mi east | 2 | 40 |
| Okemos | 6.9 mi west | 3 | 78 |
| Haslett | 7.5 mi northwest | 1 | 72 |
| Alaiedon Township | 8.0 mi southwest | 1 | n/a |
| Handy Township | 10.6 mi east | 1 | 45 |
| Mason | 10.7 mi southwest | 6 | 72 |
| Perry | 10.8 mi north | 2 | 61 |
Mold Inspection and Testing Companies 1Plumbers 1Roofers 2Electricians 1Med Spas 3Pilates and Fitness Studios 8Photographers 5Coffee Cart Vendors and Mobile Coffee Bars 1Cafés and Coffee Shops 3Restaurants 4Real Estate Brokerages 1Dance Studios 3Everything in WilliamstonHVAC Companies in Ingham County
Our October 2026 data lists 1 HVAC company with a Williamston mailing address. 1 have a Google rating and are scored. A business can be missing, so treat the count as a floor.
GLS Heating & Air Conditioning, Inc. has the highest TownAnswer score in Williamston: 45 out of 100, from 3.4 stars and 17 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: Leroy Township (4.8 miles), Webberville (5.0 miles), Okemos (6.9 miles), Haslett (7.5 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?
Williamston is in Ingham County. See every HVAC company in the county on the Ingham 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.
