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Trusted Construction Inspection Services in Berkeley
Established in 1995, Inspection Services, Inc. (ISI) is a minority woman-owned business delivering industry-leading special inspection and materials testing services throughout California. With headquarters in Berkeley and an additional office in Torrance, ISI consistently ranks as one of the largest woman-owned businesses in the San Francisco Bay Area. Our team of over 50 professionals includes California Licensed Civil and Geotechnical Engineers, OSHPD-, DSA-, and NICET-certified technicians. We specialize in special inspection, materials testing, and geotechnical testing services, ensuring compliance with approved plans, specifications, and relevant building codes. Our approach emphasizes responsibility, accountability, responsiveness, and expertise, maintaining strict quality standards while providing timely and targeted access to inspection and testing reports through our cloud-based GreenBox platform.

ISI's services support commercial/residential, education, healthcare, infrastructure, and municipal projects, prioritizing public safety and client satisfaction. Our Berkeley laboratory, accredited by AASHTO and Caltrans, conducts advanced testing for concrete, asphalt, aggregates, soils, and metals, while our geotechnical laboratory performs primary and secondary geotechnical tests. ISI's commitment to quality, safety, and innovation has solidified our reputation as a trusted partner in California's construction industry.
Services
Special Inspection Materials Testing Geotechnical Testing Concrete Analysis Soil Compaction Testing Fireproofing Inspection Structural Masonry Testing Welding Inspection Floor Flatness Testing Ground Penetrating Radar
Details
  • Year established: 1995
Highlights and features
  • We have over 25 years of experience in construction inspection services.
  • Our team includes California Licensed Engineers and NICET-certified technicians.
  • We operate AASHTO-accredited materials testing laboratories in Berkeley.
  • Our cloud-based GreenBox platform provides real-time access to inspection reports.
  • We serve all project types including healthcare, education, and infrastructure.
Associations and certifications
  • AASHTO Accreditation Program
  • Caltrans
  • HCAI
  • LEA Laboratory Evaluation and Acceptance Program
Services
Special Inspection
ISI provides comprehensive special inspection services monitoring materials and workmanship critical to building integrity. Our certified inspectors ensure compliance with California Building Code Chapter 17, OSHPD, and DSA requirements. Services include concrete placement, reinforcing steel inspection, and structural masonry testing for commercial, residential, and public works projects.
Materials Testing
Our AASHTO-accredited Berkeley laboratory conducts materials testing for concrete, asphalt, aggregates, soils, and metals. Testing includes compression, tensile, permeability, and chemical analysis. Certified technicians use calibrated equipment to ensure accurate results for construction quality control and compliance with Caltrans and federal standards.
Geotechnical Testing
ISI's geotechnical laboratory performs primary and advanced soil testing including compaction, hydrometer analysis, triaxial testing, and consolidation. Our Berkeley facility, staffed by NICET-certified technicians, supports infrastructure projects with precise geotechnical data for foundation design and earthwork specifications.
Concrete Analysis
We offer concrete analysis services including compression testing, equilibrium modulus, and shrinkage evaluation. Our lab technicians perform field and laboratory testing for fresh and hardened concrete, ensuring compliance with ACI and Caltrans standards for structural integrity and durability in construction projects.
Floor Flatness Testing
ISI provides floor flatness and levelness testing using dipstick methodology. This service ensures compliance with industry standards for concrete floor surfaces in commercial and industrial facilities, identifying irregularities that could affect functionality and safety.
People
John Hunt
Laboratory Supervisor
John Hunt supervises ISI's geotechnical laboratory with 17 years of experience. Certified as NICET Level III and ACI Concrete Lab Technician, he oversees advanced geotechnical testing including triaxial and permeability analysis for complex construction projects.
Questions
What services does Inspection Services, Inc. offer?
We provide special inspection, materials testing, and geotechnical testing services for construction projects across California.
Are ISI's laboratories accredited?
Yes, our Berkeley laboratory is accredited by AASHTO, Caltrans, HCAI, and LEA for concrete, asphalt, soil, and metal testing.
Do you serve Southern California projects?
Yes, we have a Torrance office serving Southern California with the same certified technicians and laboratory resources.
How can I access inspection reports?
Our GreenBox platform provides real-time online access to inspection and testing reports with email alerts for new documents.
What construction sectors do you specialize in?
We serve commercial/residential, education, healthcare, infrastructure, municipal, and industrial projects throughout California.
Are emergency inspections available?
Yes, we offer 24/7 dispatch services with 24-hour advance notice required for inspector availability.
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