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Who We Are

Quality Without Compromise

Kotz Heating, Cooling and Plumbing began serving the residents of Oakland County, MI in 1929 and has grown to serve Clarkston, Birmingham, Royal Oak, Walled Lake and the surrounding areas with the highest quality heating, air conditioning, plumbing, indoor air quality and water treatment services. Kotz has a well-known reputation for providing customer-focused home comfort services by the highest caliber of professionally trained staff, and we have been voted a top HVAC contractor and plumbing company in the Best of the Best Contest for several years consecutively. No matter how big or small the job, Kotz’s goal is your 100% satisfaction – guaranteed! We want to be the service company you not only rely on, but who you refer your friends and family to.

Kotz offers complete sales, installation, service and maintenance for the following products/services:

  • Heating and cooling
  • Boilers and water heaters
  • Gas piping
  • Radiant Heat
  • Plumbing—Visit our showroom to try before you buy!
  • Indoor air quality and ventilation
  • Water treatment and filtration—including water softeners, reverse osmosis and whole house filtration
  • Certified backflow testing and repair


Comfort You Can Count On!

Kotz technicians are trained to be North American Technician Excellence (NATE) certified with ongoing courses. NATE is the nation’s largest non-profit certification organization for heating, ventilation, air conditioning and refrigeration technicians, meaning our personnel are trained and certified to deliver the highest quality of professional HVAC services. We offer two ironclad guarantees:

Expect the best with Kotz:

  • Professional Sales Associates
  • Dedicated Field Technicians
  • Friendly & Helpful Customer Service Representatives
  • Honest & Dependable Services
  • Reliable Products From Trusted Manufacturers
  • No Surprises – Pricing Is Upfront Before Work Begins

If superior service is what you want, then Kotz is the only call you need to make. We will meet any heating, cooling, plumbing or indoor air quality need. Call our office today to schedule an appointment with one of our highly qualified staff.

“You have serviced my equipment for several years. All have been quality visits–keep up the good work.”
“Excellent work & follow up. Attention to details was superb.”

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Why Choose Us?

The Right Company

  • No Surprises - All Pricing Up Front
  • Fully Licensed, Bonded & Insured
  • Trained Professional Staff
  • Committed to Excellence
  • Committed to Community

The Right Team

  • Rigorous Employment Prescreening
  • Safety First Motto
  • Prompt, Courteous and Respectful
  • Specialized Technicians - NATE/NCI Certified
  • Ongoing Education and Training

The Right Products & Services

  • Money Saving Planned Maintenance Program
  • Quality Home Comfort
  • 24 - Hour Emergency Service
  • Financing Options
  • Fully Equipped & Operational Plumbing Showroom
  • Money Saving Comfort Club Memberships
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