Materials Engineering and Inspection, Inc.Request a quote
San Jose, CA—

Built on theright standards.

A California-licensed engineering agency serving Northern California construction. Every test references a published method. Every report is filed through our own digital system.

Who We Are

One agency for the field and the lab.

MEI provides special inspection and materials testing for construction projects across Northern California. Both services under one agency means one point of contact, one report format, one invoice — and no coordination gaps between your inspector and your testing lab.

We work under a named California-licensed engineer. Our inspectors hold the specific ICC or ACI certification for each scope they are assigned to.

Learn more about us
Two engineers reviewing structural drawings on a light table
Responsible Engineer

California P.E.

All inspections performed under a licensed California engineer

Certified Inspectors

ICC · ACI · AWS · DSA

Covering inspection, concrete, welding and public work

Inspectors hold the certification for their scope, including AWS Certified Welding Inspector (CWI) for structural welding

Three Offices

Bay Area & Sacramento

San Jose (HQ) · San Francisco · Sacramento

Northern California coverage from three permanent offices

View certifications
What We Do

Two disciplines.
One agency.

Inspector reviewing reinforcing steel at a foundation pour
Field

Special Inspections

Code-required inspection on the jobsite by certified inspectors, filed through our own digital system.

  • Reinforced concrete
  • Structural masonry
  • Structural steel and bolting
  • Welding
  • Soil compaction
  • Anchors and dowels
Special inspection services
Concrete test cylinders and core samples in the laboratory
Lab

Materials Testing

Sampling and laboratory testing to the governing ASTM and AASHTO standards, with traceable records.

  • Concrete
  • Soil
  • Asphalt
  • Aggregate
  • Masonry
  • Steel and welding
  • Fireproofing and fire stopping
  • Nuclear gauge density testing
Laboratory testing services
Why Choose MEI

Built for projects that can't afford to wait.

01

A licensed engineer on the work

Inspections are performed under a California-licensed professional engineer, to California Building Code requirements, not delegated remotely.

02

A fully certified, professional team

Every inspector and technician holds the specific certification for their scope — ICC, ACI, AWS or DSA — not one general qualification stretched across every trade.

03

Electronic reports, same day

Findings are recorded in the field and filed through our own digital system the same day — searchable the moment it's filed, not scanned in later.

04

Weekend and after-hours coverage

Pours and critical-path work don't wait for Monday. We schedule inspectors for Saturdays, Sundays and after-hours when a project needs it.

Recent Work

Projects across
Northern California.

View all projects
Infrastructure

Bridge Rehabilitation

Steel pile installation and field welding, inspected throughout a bridge rehabilitation.

Residential

Hillside Residential Construction

Reinforcing steel verified for caisson and mat foundations on a hillside new-construction site.

Commercial

Commercial Foundation Construction

Anchor bolt embedment and placement verified for a commercial foundation.

Send us the plans. We'll send back a scope and a price.

Request a quote and we'll get back to you.

Request a quote
Tested to Standard

We cite the method, not just the service.

Every result is traceable to a published ASTM, AASHTO or AWS standard.

AASHTO T 180 SSPC-PA 2 ASTM C31/C31M ASTM C39/C39M ASTM C88/C88M ASTM C127 ASTM C131/C131M ASTM C136/C136M ASTM C140/C140M ASTM C143/C143M ASTM C172/C172M ASTM C231/C231M ASTM C1019 ASTM C1064/C1064M ASTM C1314 ASTM D698 ASTM D1557 ASTM D2041/D2041M ASTM D2172/D2172M ASTM D2419 ASTM D2726/D2726M ASTM D2844/D2844M ASTM D2950/D2950M ASTM D4318 ASTM D4829 ASTM D6913/D6913M ASTM D6938 ASTM D7091 ASTM E164 ASTM E165/E165M ASTM E709 ASTM E814 ASTM E1966 ASTM E2174 ASTM E2393