Hours:
Geotechnical Engineering &
Construction Materials Testing
At Certified Testing Services, Inc., we pride ourselves on being more than just a service provider; we're your partners in ensuring quality and reliability. With 36 years of rich experience under our belt, our journey has been one of dedication, skill, and unwavering commitment to our clients. Our client-centric approach is the cornerstone of our business, guiding every interaction and service we provide.
Fast, Accurate, and Reliable Results
Trusted Professionals
Locally Owned and Operated
Certified Laboratory
IOWA DOT
Nebraska DOT
Army Corps of Engineers
Valued Client Care
Serving locations in Iowa, Nebraska, South Dakota, and Minnesota. Click here for more details.
1330 Michigan St
Storm Lake, IA 50588
Saturday and Sunday Hours By Appointment Only
Serving locations in Iowa, Nebraska, South Dakota, and Minnesota. Click here for more details.
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