Haertel Heating and Cooling

  • SERVICES
    • HVAC Repairs
    • HVAC Maintenance
    • HVAC Estimate
    • HVAC Installation
    • ABOUT
  • PRODUCTS
    • Furnace
      • FAQs: Furnace and Heating Systems
    • Air Conditioner
      • FAQs: Air Conditioning
    • Germicidal Lights
      • FAQs: Germicidal Lights
    • Thermostat
  • AIR QUALITY
    • FAQs: Indoor Air Quality in My Home
  • LENNOX
  • Updates
    • Helpful Tips
FALL: Haertel-Heating-and-Cooling_Bay-City-MI_Fall-HVAC-maintenance
Fall Maintenance

Did you know: outdoor temps need to be above 60˚ for us to do maintenance on your air conditioner? Save money: combine furnace and AC maintenance now before temperatures drop!

GET SCHEDULED
FALL: Haertel-Heating-and-Cooling_Bay-City-MI_Fall-HVAC-maintenance
Fall Maintenance

Did you know: outdoor temps need to be above 60˚ for us to do maintenance on your air conditioner? Save money: combine furnace and AC maintenance now before temperatures drop!

GET SCHEDULED
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Haertel Heating and Cooling of Bay City, MI

HVAC Services in Bay City

Haertel Heating and Cooling of Bay City, MI

Savings

Haertel Heating and Cooling of Bay City, MI

Lennox HVAC Systems

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Save Money!

You’ve spent hard-earned money on your heating and cooling system. When you take advantage of our annual preventive maintenance, you’ll enjoy the maximum benefit.

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Haertel Heating and Cooling of Bay City, MI

Haertel Heating and Cooling
118 Washington Ave
Bay City, MI 48708
PHONE: (989) 892-6111
FAX: (989) 892-4434

Emergency Service Hours: 24/7
Exclusively available to our customers!

Office
Monday…8AM – 5PM
Tuesday…8AM – 5PM
Wednesday…8AM – 5PM
Thursday…8AM – 5PM
Friday…8AM – 5PM
Saturday-Sunday…Closed
Showroom is closed 12PM – 1PM

Haertel Heating and Cooling
provides quality HVAC services
in a timely manner.
We’ve been building lifelong relationships
in the Great Lakes Bay Region for over 80 years!

 

SERVICE AREAS

Bay City | Midland | Auburn | Saginaw | Essexville

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Thanksgiving Hours 2025

Closed on Thanksgiving Day, November 27
Closed on Black Friday, November 28

Emergency 24/7 service available for customers:
(989) 892-6111

Wishing you a wonderful Thanksgiving season!