250 Charter Lane
Macon, GA 31210

States served

Florida, Georgia, South Carolina

Andrews, Hammock & Powell, Inc.

Business Types: Conductivity Testing, Consultants, Contractors — Commercial, Contractors — Residential, Designers, Engineers
Organizations: Certified Geoexchange Designers, IGSHPA Accredited Installers, LEED Accredited, Professional Engineers

Andrews, Hammock & Powell, Inc. (AH&P) offers a variety of engineering and technical services to Consulting Engineers, Architects, Owners, Contractors and other Clients to help insure the long-term successful operation of Geothermal Heat Pump (GHP) Systems. In the Engineering arena, we provide design services from Ground Loop Heat Exchanger (GHX)-only modeling/engineering (typical for other Consulting Engineers), to the integrated design of the entire GHP/GHX system inside and outside the building. We also provide Research, Development, Engineering and “Demonstration Project” capabilities for advanced GHP system “Architectures” like Underground Seasonal Thermal Energy Storage (USTES) systems. We were recently selected by DoD to demonstrate two forms of USTES: Borehole Thermal Energy Storage (BTES) and Aquifer Thermal Energy Storage (ATES).

On the Technical Services side, we perform in-situ Thermal Conductivity Testing (TCT) of the underground formation and other related services. We are also a National Environmental Balancing Bureau (NEBB) certified firm in both Testing/Adjusting/Balancing (TAB) and Commissioning (CxA). In the CxA arena we provide LEED-compliant Basic and Enhanced CxA, ASTM-compliant GHX Pressure testing, GHX purging/ flushing Monitoring and more. Beyond having Professional Engineers (PE) on staff registered in multiple states, and the capability of obtaining PE registration in any state, we also have a PE on staff that holds the International Ground Source Heat Pump Association’s (IGSHPA) Certified Geothermal Designer (CGD) credential.

For more information about all of AH&P’s Geothermal services, please contact Chuck Hammock at the above number or Stephen Sullens at Ext. 126. They can also be reached via email at or

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