People often mispronounce our company name.
'Trzos' rhymes with 'Pros'.
Serving Oakland County Residents Since 1945.

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. Our family and extended family of dedicated technicians and installers are ready to assist you.

(248) 682-3100

Trusted Service

Need a new or replacement system?
Call today for a free in-home estimate.

Many new systems qualify for the manufacturer and/or energy rebates. These change frequently so check with our office staff for the latest rebates available. As an added bonus, we take care of registering the warranty on all equipment we install. A new piece of equipment can be a big investment, therefore, we offer financing plans to fit your needs.

Preventive Maintenance

Our plans offer piece of mind and savings

Routine maintenance is an integral part of helping to keep your heating and cooling equipment running efficiently while reducing the need for emergency repairs. Take advantage of a Preventative Maintenance Agreement customized for you based on your equipment. A knowledgeable technician will come to your home during both the heating and cooling seasons to check over your equipment and replace your filters, if needed.

Sales & Installation

Check out our showroom

We offer an impressive inventory of heating and cooling equipment, humidifiers and other parts. We can even help get you financed.