Stay comfortable all summer with a new cooling system.

Call us today for a free replacement estimate and take advantage of system rebates and tax incentives.

About Us

"Since 1945"

Welcome to Otto A. Trzos Company. We are a third generation family owned and operated business proudly located in Keego Harbor serving southeastern Michigan since 1945. Otto founded the company and worked tirelessly until his passing in 1995. His son and daughter-in-law, Phil & Joyce, now run the operations along with their daughter, Susan.

People often mispronounce our company name. 'Trzos' rhymes with 'pros'. Otto A. Trzos, the Heating Cooling Pros.

Our family and extended family of dedicated technicians and installers are ready to assist you. Give us a call to schedule an appointment or stop by our Keego Harbor location to visit our showroom. You may even be greeted by one of our fury friends!

Reliable HVAC Professionals

Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available to handle all of your heating, cooling, and air purification needs. We strive to exceed your expectations by ensuring that each of our clients receives individualized service.

Individualized HVAC Options

Our Comfort Advisors will work with you to find HVAC solutions that fit your heating, cooling and air purification needs. We will provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home.