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Residential Heating and Cooling • Light Commercial HVAC

We provide service, on all our air conditioner, and furnace HVAC installations. We offer you, our valued customers, expertise and genuine care. We value you as a customer and want to prove to you our skill, integrity, and compassion as a heating and cooling service provider.
At Guardian Heating and Cooling LLC, we do quality work at an affordable price and all of our work is guaranteed. Guardian Heating and Cooling LLCis a family owned and operated business with 2 locations, Mequon and Oak Creek. 

We provide heating and cooling service and installation for new and existing homes. Many would call the phrase “honest contractor” unheard of, but we are committed to being just that. The service rates tend to be lower than those of the competition and invoices are never padded to profit the company at the customer’s expense. Our installations are designed for maximum comfort at the fairest possible price.
If you you’re operating an inefficient heating or cooling system that breaks down a lot, it’s likely that it’s going to break down again. Let us help you select the best Heating and Air Conditioning solution for your home.
Call or contact us today to schedule a heating or air conditioning installation appointment or call us if you have questions regarding our heating and air conditioning services, we’ll be more than happy to assist you! We look forward to serving you! Call (262) 573-8883 today!

“I had both heating and air conditioning installed. I found GeoThermal to be very professional and friendly. They did their work efficiently, thoroughly and accurately and cleaned up at the end of each day.”
Beth H., Milwaukee, WIProject: Install a Central Air Conditioning System
“I would recommend this gentleman wholeheartedly. He came a day earlier than the appointment and showed extra concern for my problem since I had a disable child living with me. Very nice gentleman and called back the next day to make sure everything was still working well.”
Lynn E., Milwaukee, WIProject: Install a Radiator Heating System
“Very trustworthy and Steve ensured we had a high quality working product before he left. He was replacing our AC unit, but our brand new furnace (which we did not get from him, but wish we would have) kept blowing a fuse. Steve replaced that fuse at no charge and investigated why it was happening. We had a very old unit, so many pieces had to be replaced. Steve and his crew stayed into the night to make sure we were all set. Would highly recommend!”
Kara P., New Berlin, WI Project: Install a Central Air Conditioning System
“Great job! You get a clear understanding of what how the job will be done.”
Jose R.Project: Install a Central Air Conditioning System
“Very honest and reliable.”
Dorothy W.Project: Install a Forced Air Heating System
“He walked me through what he was going to do and cleaned up very well and a good guy.”
Lillie OProject: Install a Forced Air Heating System

We Provide Snowmelt Systems for Your Driveway!

Snowmelting systems for interlocking concrete pavements can be used on patios, walkways, residential driveways, and building entrances. They reduce the fatigue and expense of continually having to clear off the snow on your driveway and pathways. They also reduce the damaging effects of freeze-thaw cycles and de-icing salts that is being used. The inconvenience of spreading de-icing salts is eliminated and interior floor materials are kept cleaner as well as last longer.

We install only premium air conditioners!

We Use Only Quality Products!

Water Heater Installation!

Gypcrete and In-Floor Heating Installation!

We Install Professional Grade Mini-Split Systems!

Guardian Heating and Cooling, LLC Service Areas Include:

● Ozaukee County ● Milwaukee County ● Washington County ● Waukesha County ● And More!

Guardian Heating and Cooling, licensed certified technician contractors of Wisconsin, serve Milwaukee, WI and surrounding areas specializing in Heating, Cooling HVAC installation.