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Thank you for your inquiry regarding professional support for your potential ground source heat pump project.  CGHPA is a trade association supporting the use of geothermal heat pumps.  We are glad to answer conceptual questions about the technology as an advocate for competent design, installation, and commissioning of these systems.  As an association we cannot provide consulting, specifications, professional engineering or installation contractor services.

Though we feature a number of installation examples on this website, we cannot make specific recommendations for your project.  Instead, we encourage you to make use of our Member Directory to locate professionals who are in the daily business of designing, installing and commissioning of these systems.

To aid you in your search for GSHP assistance, please refer to our Residential Guide and Commercial Guide narratives for suggested considerations for the design and installation of a geothermal heat pump system for your application.  If you have an existing GSHP system and require maintenance or repair, see our Service Narrative.


Contact CaliforniaGeo President – Bill Martin

  • Call Bill: (530) 394-8224
  • Email:
  • By Mail:
    220 Miller Court
    Quincy, CA 95971

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