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50+ Years
experience
Emergency
services
Your Trusted HVAC & Plumbing Experts in Oakland County
Since 1929, Kotz Heating, Cooling, & Plumbing has served Oakland County, MI, delivering high-quality HVAC and plumbing solutions. Our team of NATE-certified technicians provides comprehensive services including heating and cooling installation, repair, and maintenance, along with plumbing and indoor air quality solutions. With nearly a century of experience, we prioritize customer satisfaction through reliable service, up-front pricing, and guarantees. Our locally owned business has earned recognition as a top HVAC contractor and family-owned enterprise in the Best of the Best Contest.

We invest in ongoing training for our staff to maintain industry standards and offer cutting-edge solutions like smart thermostats and water treatment systems. Our two ironclad guarantees100% satisfaction and money-back installationunderscore our commitment to excellence. We serve communities including Waterford, Birmingham, Clarkston, Royal Oak, and Walled Lake, ensuring homes remain comfortable year-round.
Services
Heating Installation Air Conditioning Repair Plumbing Services Indoor Air Quality Furnace Repair Water Heaters Garage Heaters CO Detectors Humidifiers Zoning Systems
Details
  • Year established: 1929
Highlights and features
  • We offer 95+ years of local HVAC and plumbing expertise in Oakland County.
  • Our NATE-certified technicians ensure industry-leading service quality.
  • 100% satisfaction and money-back installation guarantees protect our clients.
  • Emergency services available for urgent heating, cooling, or plumbing needs.
  • Specialized solutions for Michigan's extreme winter and summer climates.
Associations and certifications
  • North American Technician Excellence (NATE)
What people say
Fantastic job Knowledgeable and honest Wonderful installer Seamless communication Professional and prompt
Services
Heating Installation
Kotz provides high-efficiency furnace and boiler installations tailored to Michigan's climate. Our technicians ensure proper sizing and energy-efficient operation, reducing long-term costs while maintaining comfort. Emergency repair services restore functionality during critical winter months.
Air Conditioning Repair
From routine maintenance to emergency repairs, Kotz restores cooling systems to optimal performance. We service units of all ages and recommend replacements when repairs become inefficient, ensuring reliable summer comfort.
Plumbing Services
Our certified plumbers handle leaks, fixture replacements, and water heater installations. Emergency services address burst pipes and other urgent issues, while water treatment solutions improve household water quality and safety.
Indoor Air Quality
Kotz offers humidifiers, dehumidifiers, and filtration systems to enhance home air quality. These solutions reduce allergens and maintain healthy humidity levels, particularly beneficial for Michigan's seasonal climate extremes.
Smart Thermostat Installation
We install programmable and smart thermostats that optimize energy use and improve temperature control. These systems integrate with home automation platforms, offering convenience and cost savings for modern households.
People
Matt
Technician
Experienced HVAC technician specializing in water heater installations and repairs. Known for professionalism and customer-focused service during home visits.
Alex
AC Specialist
Expert in air conditioning diagnostics and replacement. Provides honest assessments for aging systems and ensures efficient cooling solutions for residential clients.
Jason
Sales Consultant
Relatable HVAC sales expert who guides customers through furnace replacements and system upgrades. Maintains communication throughout installation processes.
Cody
Installer
Skilled AC installer recognized for clean, efficient workmanship. Explains system features to customers and ensures proper operation post-installation.
Bob
Plumbing Technician
Efficient plumber installing smart water valves and addressing emergency leaks. Praised for punctuality, courtesy, and adherence to insurance requirements during service calls.
Questions
What HVAC services does Kotz offer?
Kotz provides heating and cooling installation, repair, and maintenance including furnaces, boilers, air conditioners, and smart thermostats.
Do you offer emergency plumbing services?
Yes, we provide 24/7 emergency plumbing services for urgent issues like burst pipes and water heater failures.
Are financing options available?
Yes, we offer special financing with approved credit for HVAC and plumbing upgrades. Ask about current promotions.
What areas do you service?
We serve Oakland County, MI including Waterford, Birmingham, Clarkston, Royal Oak, and Walled Lake.
Do you guarantee your work?
Yes, we offer a 100% satisfaction guarantee and money-back installation guarantee for all services.
How can I schedule service?
Call 248-574-4100 or use our online form to schedule appointments for HVAC, plumbing, or emergency services.
Videos
Reviews (6)
Dawn Jenish
May 05, 2022 Report
Had Kyle D out to replace inoperative piece in toilet tank. Also had him adjust additional toilet flow rate. Excellent job. Very personable. Asked him a TON of questions about other projects I am considering doing and he was very knowledgeable, explained things well, and gave me good estimates for some of my future projects! Highly recommend!
Clayton Mackey
May 04, 2022 Report
Technician came a day early. They gave me only a few minutes warning but fortunately I was home anyway. Tech seemed knowledgeable and explained what he was doing. Problem is unit is low on refrigerant. He quoted some astronomical price for the required refrigerant. I have done some research and found anyone can buy this for a small fraction of the price they wanted to charge. I feel they wanted to try to get me to buy a new system instead of just recharging this one. Granted, it is very old and there is no way of knowing how much longer it would last.

It does still work though, just needs more refrigerant added. I have also found out it is not unusual to need a recharge every few years so I am quite disappointed that they do not make that an affordable option. When I made the appointment they did tell me that it would be $89 to come look at it plus repair costs. Well, all he did was look at it, no repair but charged me $159 anyway. He then tried to tell me the extra $70 is for his time. If that it's true then they should have told me that on the phone originally.
Ron David
Mar 20, 2022 Report
Called to request help at 9:30AM. Chris called me at 9:43 to say he was on his way. Job was done quickly and professionally by 10:45. Very pleased with both the job and the costs. Now I can sleep at night knowing my sump water is not digging a hole in my backyard. I know it does not look like a big job but the pipe cracked right at the wall so the repair involved removing the old pipe from the brick wall and then replacing a new one with a connection both on the inside and the outside.
Ron Frawley
Mar 05, 2022 Report
Great company. Have serviced our old heater several times, when it finally needed replacement they did a great job installing a new system a couple years ago. Service / maintenance has been outstanding as well. Most recent visit was from Alex, he was prompt, courteous, knowledgeable and efficient. He performed his work and reviewed overall status / performance of the unit with us. Would (and have) recommend this company to friends and family. -Ron
Jamie Ruddy
Feb 21, 2022 Report
Kotz update my home with 3 new furnaces and AC units and a boiler. It was a very tricky job the way the house is laid out. Scott my salesman designed a new plan and followed though and executed the job. Employees were all professional and new what they were doing. Definitely a professionally run company, thanks to all thy guys who worked here!
Jeremy Galanty
Feb 15, 2022 Report
I had the unfortunate opportunity to have my Furnace go out during the coldest days this year (4-8 degree days). I had a terrific sales rep in Troy Bridger that not only put my mind at ease but made me feel like family. He would discuss priorities that truly lined up with mine starting with family. It was a great experience and I am sure that all the Kotz reps and installers are just as friendly but next time I need service the first person I would call is Troy because of the trust I felt through our interactions.