Contact us

Mailing Address:
P.O. Box 2609
Clovis, CA 93613

Fresno Lab:
3109 N. Miami Ave.
Fresno, CA 93727
Ph: (559) 292-2188
Fax: (213) 443-9438

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Trinity Engineering is committed to providing our customers with the best service and quality. Mark Horn, our Principal Engineer has over 20 years of construction material testing, design and consultation experience. Trinity's labs are certified by the State of California. Our Fresno Lab is AASHTO accredited by AMRL. It is equipped to perform aggregate, asphalt, concrete, soils and binder testing procedures and designs. Trinity Engineering provides materials engineering, testing and inspection services, working closely with design professionals, contractors, government agencies, and other project team members throughout the project's duration. Laboratory testing is provided by our accredited lab, which is inspected and certified regularly by State and Federal authorities. 

"Trinity Is The Definition Of Quality"