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TRUSTED BY SAINT JOHNS, MI HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon104
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Saint Johns - Updated Nov 2026

Avatar for LOOKING GLASS MECHANICAL
LOOKING GLASS MECHANICAL
4.9(
54
)
Gas Furnace / Forced Air Heating System - RepairCentral A/C - InstallCentral A/C - Service or Repair+9 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Full Service Heating, Cooling and Plumbing. We have over 20 years of experience in the Residential and Commercial HVAC, Plumbing Services & Repairs. We get it right the first time, we strive to deliver the most comprehensive heating, cooling, and general contracting services in the greater Lansing area, including installations, upgrades & repairs. Schedule Services - 517-894-4547. PLEASE NOTE WE DO NOT SERVICE OR INSTALL BOILER UNITS. HVAC & Plumbing Renovations. We specialize in renovation projects in the greater Lansing Area. With our experienced technicians your renovation projects will be in good hands. Ask About Our Renovation Services - \nFREE Quotes 517-894-4547

Photos
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for N.A.B. Air Quality
N.A.B. Air Quality
5.0(
53
)
Air Ducts & Vents - Clean

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

"Couldn't say enough really good things about them. They followed all the Covid regulations. Called before coming out and even a time or 2 before then. Also, did a really good job with cleaning the air ducts. I was thoroughly impressed"
Response time1 day
9 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Doty Mechanical Inc
Doty Mechanical Inc
4.5(
80
)
Gas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Having worked with Doty Mechanical as a customer in both corporate and residential settings, it is clear that they do things the right way and put their customers first no matter the size of the project. Most recently, Doty fully replaced the HVAC system at our home. The installers, Daren and Clinton, were exceptional - very friendly, knowledgeable, and respectful of us and our home at all times. The first thing that they did when they arrived, after introducing themselves, was to lay down canvas tarps from the front door all the way to the furnace and put booties on their feet to protect our wood floors and carpet. They worked quietly and efficiently and kept their workspace neat. At the end of the installation they took the time to walk us through the entire system and answer any questions that we had. As someone who considers themselves OCD, I was beyond impressed by the end result of their work! Everything they installed was level/straight and clean - true craftsmanship! They really did a great job! Likewise, leading up to and after the installation, interactions with the office staff were equally as wonderful. The project was quoted with a very precise level of detail and Lori completely took care of us by handling all of the "heavy lifting" on paperwork for the rebates we qualified for. She simply asked us a few questions and took care of the rest for us! By far, this has been my best experience ever with any contractor - I would recommend Doty Mechanical to anyone needing HVAC services, whether in a corporate setting or at home, in a heartbeat!"
Additional Photos
Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for The Service Professor, Inc. - HVAC
The Service Professor, Inc. - HVAC
4.3(
1,041
)
Gas Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+2 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

"I am a new customer with Service Professor, Inc. as of May 2021. In each of three service calls for routine system checks of my HVAC, plumbing, and furnace systems, I couldn't have been more satisfied with the professionalism of the individual tradesmen or with the customer service communication provided by friendly and patient office staff. This review is being posted especially to praise the exceptional routine service call provided by John Courtney on 10/11/2021. John presented as being a good listener and one who genuinely enjoyed his work and serving others. For example, he listened carefully to my questions and responded with detailed information that I could understand easily. And, after I commented to John about my previous positive interactions with Service Professor, Inc. tradesmen and with customer service staff, John responded by stating he has worked in the heating and cooling trade for 12 years and felt very fortunate, as a newer employee, to be able to work for an organization such as Service Professor that places caring and quality customer service communication among its most important priorities. I hope my comments encourage anyone seeking HVAC, plumbing, or furnace routine service or repair work to not hesitate to contact Service Professor."
Water Service
Water Service
Random Photos of Crew
Random Photos of Crew
Random Photos of Crew

+13

Response time3 hrs
14 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for ASK Heat & Cool, LLC.
ASK Heat & Cool, LLC.
4.9(
28
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+13 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Exceptional service and unmatched compassion. ASK Heat & Cool, LLC. handled my A/C service perfectly, but their outstanding customer care went far beyond the job. I have been grieving the sudden loss of my partner, and the owner, Alister, went out of his way to call me himself and pray for me. It is rare to find a business that genuinely treats you like family and cares about you as a person, not just a customer. I will be a customer for life and highly recommend them to anyone."
Response time2 hrs
Response rate97%
19 neighbors recently requested a quote
Avatar for Hometown Heating and Air Conditioning
Hometown Heating and Air Conditioning
4.0(
8
)
Air Ducts & Vents - Clean

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"i hired hometown heating and air conditioning for several reasons. I'am a contractor myself and I have used many of heating companies. They were on time for the original estimate they did not send a worker the owner and his wife came to my job site. They were very organized got right to the task. They gave me an outstanding price. I also had them install A/C. When there crew showed up same. There were on time worked in an orderly manner they cleaned up everything and completed the job in a short time. I would hire them again in a minute."
out with the old
in with the new
before
after
big jobs....no problem!

+1

Response time5 hrs
Recommended by71%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

No, heat pump maintenance needs are very similar to air conditioners, including keeping outdoor units clean, changing filters regularly, and occasionally scheduling a refrigerant check to see if any has leaked out. Heat pumps typically switch automatically between heating and cooling, so you don’t need to worry about manually changing them every season. However, since they are always on call, they can develop wear and tear faster than an air conditioner.

No, it's not advisable to only replace the outside AC unit connected to your system. AC units are designed to work as a cohesive system, and older units work differently than newer units. Therefore, replacing only one component can lead to incompatibilities that affect the system’s performance. Replacing one component can void your warranty, costing you money for repairs.

Yes, HVAC zoning is generally considered worth the investment by both experts and homeowners. Zoned systems offer significant benefits in convenience, efficiency, and comfort by allowing you to set different temperatures for various rooms or 'zones' in your house. This ability to heat and cool only the spaces you're using leads to energy savings and lower utility bills. Zoned systems are especially effective in multi-level homes that experience temperature fluctuations, but even smaller homes can benefit from the ability to adjust temperatures more quickly. While the up-front installation cost can be high, many find it's a worthwhile long-term investment, particularly for those who plan to stay in their home for a while.

Water buildup in your HVAC system is a cause for alarm. If water accumulates in your ductwork, it can drastically lower your home's air quality and create safety hazards. These risks include mold growth, damage to your HVAC system, and attracting pests that are seeking water into your ducts. Proper insulation and sealing of ducts can prevent this, and regular inspection and maintenance can address water damage problems before they become too severe.

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

The Saint Johns, MI homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.