About Koz Heating & Cooling

Welcome to Koz Heating & Cooling

We have been dedicated to providing the ultimate in home comfort solutions to our community for years. Our commitment is rooted in offering efficient, reliable, and economically friendly heating, AC, and indoor air quality solutions, featuring premier products.

But we don’t stop at high-quality products. Our team at Koz Heating & Cooling consists of highly trained technicians ready to address all your HVAC needs, from regular maintenance and repair of residential systems to comprehensive turnkey installations for commercial setups.

We are proud to offer both households and businesses the finest in heating and cooling technologies, as well as unmatched HVAC services. New installations come with the assurance of multi-year warranties on parts and labor, all part of our promise to deliver customer satisfaction that goes beyond expectations.

Choose Koz Heating & Cooling for dependable, high-quality heating and cooling solutions tailored to meet your needs.

Fully Insured for your peace of mind

NATE Certified Technicians ensuring industry-standard expertise

Flexible Financing Options making comfort affordable

Superior Quality Workmanship we take pride in our work

Licensed Professionals for reliable service

24/7 Emergency Services because we understand urgency

100% Satisfaction Guarantee on all our work

Factory Trained & Authorized to deliver the best in HVAC solutions

Generous Warranties on parts and labor for new installations

Our Mission
Superior Customer Service

At Koz Heating & Cooling you’ll find that you not only receive superior service but that someone is always reachable when you need us. To us, that’s all part of “Making it Happen.” Call us today to find out how we can help you with all of your HVAC needs.

Trust Our Team of Experts

Our team utilizes the latest HVAC technologies, while at the same time maintaining our sense of family values when servicing your home or business.

Our Team
Meet Our Team

We Provide Fast, Reliable Heating and Air Conditioning Services in Macomb County, Oakland County and the Surrounding Areas.

Michael Kosmalski

Michael Kosmalski

Owner/President

Jason Gumbrecht

Jason Gumbrecht

General Manager

Derek Werkmeister

Derek Werkmeister

Sr. Service Technician

Kyle Ransome

Kyle Ransome

Lead Installer

Jake Rinke

Jake Rinke

Apprentice Installer

Karen Schocke

Karen Schocke

Office Manager

Ann-Marie McCardell

Ann-Marie McCardell

Office Manager

Sherry Meldrum

Sherry Meldrum

Customer Service, Receptionist