Calibration Service
Hardness Tester Calibration & Repair in California
A hardness tester that drifts sends bad material downstream with a passing grade. American Gage both calibrates and repairs hardness testers — one of the few Southern California labs handling the full service in-house since 1968.
Service
Calibration + repair, one lab
Repair policy
Estimates never exceed 50% of new cost
Coverage
In-lab, on-site OC & LA, mail-in portables
Accreditation
A2LA ISO/IEC 17025:2017 · #4296.01
Calibration plus the repair nobody else wants to do
Hardness testers are mechanical instruments with wear parts — and most calibration providers will verify one but won’t fix it. We do both: verification of your tester’s performance, and repair service for major hardness tester types when wear or damage is behind the drift. Per our standing policy, repair estimates never exceed 50% of the cost of a new unit.
That matters to heat-treat operations under Nadcap and machine shops certifying material condition to customer specs, where an unreliable tester means quarantined product.
Serving California’s metal-working base
Bench testers are heavy and sensitive to moves, so many customers pair tester service with our on-site visits across Orange County and Los Angeles County. Portable testers ride the free pickup routes. Either way, certificates document as-found/as-left condition with NIST traceability under our A2LA ISO/IEC 17025:2017 accreditation.
What we see most
- Bench hardness testers (Rockwell-type)
- Portable hardness testers
- Durometers
- Test blocks (verification)
Hardness Tester Calibration & Repair FAQs
Do you repair hardness testers or just calibrate them?
Both — repair and calibration for major hardness tester types, so a drifting tester can be corrected and certified in one cycle instead of bouncing between vendors.
Can you service our bench tester on-site?
Yes — bench testers often shouldn’t travel, and our technicians cover Orange County and LA County on-site. Portables can use the free pickup routes instead.
Need hardness tester calibration & repair?
Send your list — manufacturer, model, quantity — and we'll return scope, pricing, and turnaround within one to two business days.