home ac diagram
“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.”
“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.”
“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!”
“Great job! You get a clear understanding of what how the job will be done.”
“Very honest and reliable.”
“He walked me through what he was going to do and cleaned up very well and a good guy.”

Home Heating and Cooling Services • Light Commercial HVAC

Guardian Heating and Cooling provides residential and commercial heating and cooling with top of the line furnaces, air conditioners, HVAC systems and products.
Guardian Heating and Cooling offers affordable comfort for your home or business! Proudly serving Milwaukee, WI and surrounding Counties. Thermal Management is a family owned and operated
business with a shop in Mequon,WI.
We provide home 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.

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.