About us
A field-first engineering firm, not a paperwork factory
Compaction Consulting Inc provides geotechnical engineering, construction materials testing and special inspection across Southern California from our corporate office in Chino.
Who we are
Three disciplines, one accountable team
Most projects don't fail on the calculation — they fail in the handoff. The soils report says one thing, the field technician sees another, and the special inspector is a third company who wasn't in either conversation.
We built this firm to close that gap. Geotechnical engineering, construction materials testing and special inspection all sit under one roof, so the engineer who wrote the recommendation is reachable by the technician standing on the pad.
We're deliberately lean. That means you talk to people who can make decisions, scheduling changes get handled the same day, and our overhead doesn't show up on your invoice.
How we work
What clients actually notice
Field response, not phone trees
You reach the person who can dispatch a technician. Small-firm structure means scheduling changes get handled the same day instead of routed through three offices.
One firm, three scopes
Geotechnical, materials testing and special inspection under one roof — one contract, one point of contact, and no gaps between the soils report and what happens in the field.
Cross-certified inspectors
Many of our inspectors hold multiple certifications, so a single trip can cover several required scopes. That is fewer mobilizations on your invoice.
Reports written to be used
Recommendations are practical and constructible. We write for the contractor who has to build it and the plan checker who has to approve it.
Certifications
Certified and approved
Our technicians and inspectors carry certifications from the agencies below. Many hold several at once, which is why a single site visit can often satisfy more than one required inspection scope.
International Code Council
American Concrete Institute
American Welding Society
Division of the State Architect
California Dept. of Transportation
Small Business Enterprise
Need certification numbers, a current insurance certificate or a statement of qualifications for a bid package? Ask and we'll send the current documents.
Want to talk to an engineer, not a call center?
Send us the project and we'll tell you what it actually needs — including when a full investigation isn't warranted.