Alderfer's Air Conditioning, Heating & Refrigeration - logo

commercial and residential customers

for your new systems

regular maintenance options

service and installation

Serving Stephenville, Granbury, and

Surrounding Areas

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Alderfer's Air Conditioning, Heating and Refrigeration of Stephenville, TX, gives excellent gerothermal heating and cooling systems. The earth absorbs almost 48% of the sun's energy, producing an almost constant underground temperature between 45° and 70° F. Geothermal is a process that uses solar energy to cool and heat your residence. The geothermal system uses the heat by condensing it and circulating that air throughout the home. During the summer, the same process is reversed and your system will absorb heat from the air inside your home and transfer it into the ground through a loop system.

Studies by the U.S. Environmental Protection Agency show that geothermal systems rank among the least life-cycle cost systems of all heating and cooling systems.


Exact savings are determined by a number of variables, but most homeowners will see a reduction of approximately 30 to 70% in their current heating and cooling costs.

Geothermal technology has been there for more than 50 years and many people and companies benefit from using geothermal energy.


This technology is being developed every day. Consumers rank their comfort and satisfaction with geothermal systems higher than any other type of system. Conserve energy by going for geothermal energy savings!

Get a cost-effective heating and cooling system

Understand the benefits of geothermal technology

Count on our top brands for effective geothermal solutions

Contact us today!


  • In business since 1979

  • 1-year service maintenance contract with all new system installations

  • Trane dealer

  • Trane products come with warranty

  • Extended warranties available for purchase

  • Financing options available

You can choose from our systems available in several brands including the functional Trane! Trane gives many options of geothermal systems. Its most efficient packaged geothermal solution system gives up to 29.4 EER efficiency and is available in either single-stage or two-stage.


The variable speed blower motor gives up to 12 airflow selections, keeping your comfort levels even and efficient throughout your home or business.

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