The Best in Quality Assurance Engineering

ON-SITE TECHNICAL SERVICES INC is a Quality Assurance firm that provides Inspection Services to public agencies, construction companies and Fabricators. Our staff of experienced inspectors allows us to utilize inspectors located near the fabricator or project site to provide a cost effective means to complete Quality Assurance Activities and minimize travel related expenses.

Our services

Fabrication, Construction & Start Up QA Inspection

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Featured Project

The Carlsbad Desalination project is the largest desalination plant in the western hemisphere. The $922M project is the first large-scale desalination plant on the West Coast.

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Fabrication QA

Provides third-party shop fabrication inspection for water, wastewater, public works, power Generation and Petrochemical projects. We’re experienced in all phases of manufacturing and fabrication.

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Construction QA

Construction inspection services for new building construction, as well as transportation, utilities, water/wastewater treatment and conveyance, and recreational projects.

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Start Up QA

Provides technical start up support during commissioning of equipment and large process plants associated with the water transmission and power generation industry.