HVAC Contractor in Bay City
Serving You and Your Family Since 1938
Heating & Cooling Services in Bay City
HVAC Repairs
HVAC Maintenance
HVAC Upgrades
Your Premier Lennox Dealer in Bay City
Since our beginning, Haertel Heating and Cooling has been proud to be a Premier Lennox Dealer. Our customers have come to rely on the high standards we use in order to maintain this premium status. In short, it guarantees quality products and workmanship! Customers are always welcome to select other quality products – with the guarantee that you’ll get the same superior workmanship, too!
Step 1:
Expert Assessment
Most people want help in making big decisions about heating, ventilation, cooling, and air quality for their home. So we’ll meet you at your home for a free consultation. We’ll walk through and assess your current HVAC system, then give you options that reflect your budget and align with your comfort needs.
Step 2:
Quality HVAC Installation
After you’ve selected the level of quality and efficiency you prefer, our design team will fabricate your home heating and cooling system to spec, then install it on a day that works for you. Our HVAC installation services ensure that your system is set up for optimal performance. Get more details about our Design and Installation.
Step 3:
Save With HVAC Maintenance
Annual HVAC maintenance of your heating and cooling system saves you money by extending longevity and maximizing efficiency. If you schedule your maintenance during warmer months, we can combine maintenance of both your furnace and air conditioner.
CURRENT REBATES
Effective: 1/1/26 – 3/1/26
Subscribe to Save
No spam! Just savings!
- Get your annual maintenance reminder via email.
- Get our quarterly promo and rebate details so you know when to buy.
HVAC Products for Your Home Comfort
Heating
Furnace
Heat Pump
Ductless Mini-Split
Thermostat
Heating FAQs
Cooling
Air Conditioner
Heat Pump
Ductless Mini-Split
Thermostat
Cooling FAQs
Indoor Air Quality
Air Purifiers
Germicidal Lights
Humidifier/Dehumidifiers
Indoor Air Quality FAQs
Germicidal Lights FAQs
Areas We Service
Mid-Michigan’s Heating and Cooling Pros
We are pleased to offer our heating, cooling, and indoor air quality services to our neighbors throughout the Tri-City area including:
- Essexville
- Munger
- Reese
Expectations
Building trust is about both communicating and meeting expectations.
Here’s what you can expect from our team of professionals at Haertel Heating and Cooling:
Satisfaction Guaranteed
Our heating and cooling technicians place a high priority on customer satisfaction.
24/7 Emergency Repairs
Emergency Service is exclusively offered to our customers as YOU are our top priority!
Knowledge & Expertise
Technicians undergo training and certification to ensure elite skills in installing and repairing your HVAC system.
Prompt & Professional
Our customers often comment about our great reputation for being prompt and professional.
Rebates & Financing
Our team helps each customer take advantage of every possible rebate or discount promotion.
Licensed & Insured
Our HVAC technicians are fully licensed and insured, providing expert service and peace of mind.
Our Customers Say It Best
Since 1938, the Haertel Tradition
has been to provide high-quality HVAC services to Bay City residents that will earn your enduring trust – even to the next generation! We choose Lennox and other superior heating and cooling products for the fine craftsmanship that our customers deserve. Thank you for trusting us!
Haertel Heating & Cooling
118 Washington Ave
Bay City, MI 48708
(989) 892-6111
FAX: (989) 892-4434
Emergency 24/7 Service Hours
Exclusively available to our customers!
Haertel Heating & Cooling
provides quality HVAC services in a timely manner. We’ve been building lifelong relationships in the Great Lakes Bay Region for generations!
