Experienced. Dependable. Innovative.
Gregg Drilling is widely recognized as a leader and innovator in drilling, sampling, and subsurface investigation.
Gregg Drilling Services
For over thirty five years Gregg Drilling has been delivering high-quality environmental, geotechnical, and marine drilling and testing solutions.
Hollow Stem Auger Services
Rotary Services
Cone Penetration Testing Services
Advanced Site Characterization
Gregg Drilling has created a High Resolution Site Characterization (HRSC) division to provide the most experienced personal and equipment in the industry to support our clients with their projects.
In-situ Remediation Services
Well Installation Services
With over 30 years experience drilling in California and surrounding states, Gregg Drilling can handle any size project from Consumer water wells, to Agricultural wells to Industrial/Commercial wells.
Exploration & Mining Services
Gregg Drilling conducts specialized geotechnical drilling to extract samples from a site for exploration/mining purposes.
Geotechnical Testing
Gregg Drilling offers a number of specialized tests for geotechnical investigations including SPT energy calibration, pressuremeter testing, vane shear testing and dilatometer testing.
Equipment Delivering Solutions
For over thirty five years Gregg Drilling has been delivering high-quality environmental, geotechnical, and marine drilling and testing solutions.
Innovative solutions, sound technical advice drive results.
Our commitment to responsive, reliable and cost effective service means solutions, savings and peace of mind to you and your organization.
Gregg Drilling, LLC is directed and staffed by geotechnical and environmental professionals*** with experience in industry, consulting, and research.