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Geothermal Heating And Cooling: The Go-To System When Switching Out Your FurnaceGeothermal heating and cooling systems are the most energy-efficient home comfort systems you can buy. Rather than burning fossil fuels for heating or using ozone-depleting refrigerants for cooling, a geothermal heating and cooling system uses renewable (and free) heat from the earth.

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"We love the professionalism Ked exhibits . Very thorough and keeps us informed if there is (or isn't) a problem."

Cindy W.
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"Caleb was very courteous and thorough on his routine check-up of our heating system. Thank you."

Ron N.
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"Great pleasant staff from the initial phone call to the service tech! Friendly, knowledgeable, and conscientious."

Kimberly B.
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"I had ample notice of arrival via text. Technician picture was provided for safety and I appreciated that. Kept a clean work area and wore shoe covers inside the house. I had questions about the maintenance plan I had purchased in advance. The technician reached out to the office and clarified for me—the office was prompt with answers and the technician was very friendly, helpful and professional. We will certainly continue to purchase the annual maintenance visits with Hartman Brothers!"

Melanie K.
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"Very polite and fast. in and out in less than an hour."

Edgar T.
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"Josh was able to quickly trouble shoot the problem with my Hvac .Thank you!"

Eric M.
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"Hartman Brothers service technicians are always very prompt, professional and knowledgeable. Excellent products and service."

Bill F.
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"Excellent professional service by Brian…detailed cleaning of outdoor air conditioner unit..checked electrical components.. changed batteries in thermostat!"

Ramona H.
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