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Business Details
34 Years
experience
Trusted Geotechnical and Environmental Engineering Services in the Southwest
Eagle Drilling Svc (GES) has been a trusted leader in geotechnical engineering, environmental consulting, and construction materials testing since 1992. Founded by Nevada native Greg DeSart, our firm combines decades of regional expertise with a commitment to safety, innovation, and community impact. Our team of licensed engineers, certified technicians, and environmental specialists delivers tailored solutions for infrastructure, residential, and commercial projects across the Southwest. With four offices in Nevada, Utah, and Arizona, and three AASHTO-accredited laboratories, we ensure technical excellence and compliance with ASTM standards.

Our sister company, Eagle Drilling Services, enhances our capabilities in subsurface exploration and geotechnical drilling. Recognized as a top workplace, we prioritize client collaboration, safety culture, and sustainable practices. From seismic studies to groundwater monitoring, our work supports critical infrastructure like highways, bridges, and energy-efficient buildings. We maintain industry leadership through continuous staff training, cutting-edge technology, and adherence to rigorous quality assurance protocols. Our community involvement reflects our dedication to improving the regions we serve.
Services
Geotechnical Engineering Environmental Assessments Materials Testing Special Inspections Ground Source Heat Exchange Drilling Services Laboratory Testing Phase I ESA Asbestos Surveys Seismic Studies
Details
  • Year established: 1992
Highlights and features
  • We offer 30+ years of specialized expertise in Southwest geotechnical conditions
  • Our three AASHTO-accredited laboratories ensure precise materials testing
  • We maintain a zero-compromise safety culture with dedicated safety committees
  • Our sister company provides integrated drilling and well monitoring solutions
  • We combine local knowledge with state/national government prequalifications
Associations and certifications
  • AASHTO Accreditation Program
Services
Geotechnical Engineering
We conduct comprehensive subsurface investigations and geotechnical evaluations for infrastructure projects. Our engineers assess soil stability, groundwater conditions, and seismic risks to ensure safe foundation design. Services include slope stability analysis, pavement evaluation, and utility clearance permitting for highways, bridges, and commercial developments.
Environmental Assessments
Our team performs Phase I and II Environmental Site Assessments to identify contamination risks. We specialize in asbestos surveys, remediation planning, and groundwater discharge permitting. Services support land development projects with regulatory compliance and environmental protection strategies for former industrial and commercial properties.
Materials Testing
We provide AASHTO-accredited laboratory and field testing for construction materials. Our technicians evaluate soil, concrete, asphalt, and aggregates to meet project specifications. Services include mix design, quality control monitoring, and compliance testing for federal, state, and private sector infrastructure projects.
Special Inspections
Our ICC-certified inspectors ensure construction compliance with International Building Code requirements. We perform structural masonry, reinforced concrete, and steel welding inspections. Services include site grading verification and fireproofing assessments to guarantee structural integrity for commercial and public works projects.
Ground Source Heat Exchange
We design and install energy-efficient ground source heat exchange systems. Our engineers conduct thermal conductivity testing and borehole analysis to optimize system performance. This sustainable technology provides heating and cooling solutions with 50-year durability and reduced energy consumption for commercial buildings.
People
Greg DeSart
Founder & Owner
Greg DeSart founded GES in 1992 after recognizing regional infrastructure needs. With deep Nevada roots, he built the firm into a multi-office engineering leader while maintaining hands-on management. His vision combines technical excellence with community stewardship.
Questions
What geographic areas do you serve?
We operate throughout Nevada, Utah, and Arizona with offices in Las Vegas, Reno, Mesquite, and St. George.
Are your laboratories accredited?
Yes, all three of our materials testing labs hold AASHTO Accreditation Program certification.
What construction materials do you test?
We test soils, concrete, masonry, asphalt, aggregates, and fire-resistive materials using ASTM standards.
Do you handle environmental remediation projects?
Yes, we perform Phase I/II ESAs, asbestos surveys, and remediation planning for contaminated sites.
Can you perform special inspections for commercial buildings?
Our ICC-certified team conducts special inspections for structural components per International Building Code requirements.
Do you offer geothermal system design?
Yes, we design ground source heat exchange systems with thermal testing and borehole installation services.