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Fast, Licensed Geotechnical Solutions for California Homeowners & Builders

20+

Years of Experience

1000+

         Projects

Fast

Turnaround Reports

California

Licensed Experts

Get A Quote for Your Project

Services We Offer

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We provide the following valuable geotechnical services for residential projects:

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Geotechnical Investigations (Soil Reports)

Geotechnical Services During Construction 

Percolation Testing

Corrosion Soil Screening

Analytical Soil Sampling and Testing

 

All services come with a signed and stamped professional engineering report. 

Soil Sampling

Geotechnical Soil Reports

We specialize in providing fast, accurate, and reliable soil reports tailored for residential developments, including:

  • Single-Family Residences: Custom homes and new builds.

  • Home Additions: Ensuring your new expansion integrates safely with your existing foundation.

  • Accessory Dwelling Units (ADUs): Detached or attached backyard homes and cottage units.

  • Retaining Walls & Slopes: Engineered solutions for hillside properties, grading, and erosion control.

Footing inspection

Geotechnical Services During Construction

Our construction-phase geotechnical services for residential projects ensure strict adherence to design specifications through rigorous field verification and materials testing. Geotechnical engineers and certified technicians perform real-time evaluations of subgrade preparation, verify design bearing capacities within footing excavations, and conduct density testing on structural fill to confirm compliance with ASTM standards. By providing continuous observation during grading, foundation concrete placement, and retaining wall backfilling, we mitigate the risks of differential settlement and expansive soil distress, ensuring structural integrity and regulatory compliance.

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Percolation Testing

A percolation test, commonly referred to as a perc test, assesses the soil's water absorption rate, which is essential for planning a septic drain field or infiltration basin. The outcomes of this test are crucial for the proper design of a septic system. Essentially, the test measures how quickly a specific volume of water seeps into the subsoil of a drilled hole with a known surface area. 

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Soil Corrosion Screening

Sample soil and perform laboratory testing of the soil samples for minimum resistivity, pH, and chloride and water-soluble sulfate.

Laboratory

Soil Analytical Sampling and Testing

Sample the soil for environmental contaminants including heavy metals, fuels, etc. Seal, label, and enter samples into a chain of custody for transportation to a state-certified laboratory for analysis. After the analysis is complete, we will provide a final technical report summarizing methods and results of the investigation.

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Expert Residential & Commercial SWPPP Services

Stormwater regulations should not delay your project or drain your budget. We use proven, pre-approved templates to deliver fast, compliant, and cost-effective SWPPP solutions.

Services

OUR PROCESS

How We Work

Site Review

We review project details and site information.

Field Investigation

On-site exploration and soil sampling.

Laboratory Testing

Detailed testing and analysis.

Engineering Analysis

Data-driven engineering evaluations.

Final Report Delivery

Clear, accurate reports delivered on time.

SERVICE AREAS

Proudly Serving California

  • San Francisco Bay Area

  • Sacramento Valley

  • Central Coast

  • San Joaquin Valley

  • Redwood Empire

  • and most other areas

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