In-Lab & Onsite Calibration Services in Ontario, CA
With over 35 years of experience, our technicians have provided precise calibration, instrument repair, and metrology database management to a diverse range of industries across the Ontario area.
Located in Gaithersburg, MD, our calibration laboratory—accredited to ISO/IEC 17025:2017, ANSI Z540-1, and Z540.3 standards—adheres to strict quality protocols. We perform all calibrations and repairs in line with manufacturer specifications to ensure your measurement tools remain reliable, repeatable, and audit-ready. Each calibration is accompanied by a certificate that confirms compliance with the rigorous standards set by the National Institute of Standards and Technology (NIST).
Serving Ontario, CA
Ontario is a key logistics and manufacturing city in the Inland Empire, anchoring the region along the I-10, I-15, and SR-60 freeways and home to Ontario International Airport. The area is a hub for air cargo and distribution, aerospace and defense suppliers, and industrial manufacturing, with activity across Ontario, Rancho Cucamonga, Chino, Fontana, and the wider Inland Empire. Tra-Cal supports these operations with ANAB-accreditedISO/IEC 17025:2017 calibration of test, measurement, and laboratory equipment.
Because Ontario sits outside our Mid-Atlantic pickup radius, we serve the Inland Empire through two intake paths: prepaid ship-in calibration with a typical five-business-day turnaround, and onsite calibration appointmentsat your facility. Each calibration is performed against documented procedures, traced through NIST, and accompanied by an audit-ready certificate that supports AS9100, ISO 13485, ISO 9001, and FDA 21 CFR Part 820 quality systems.
Why Quality Teams in the Inland Empire Area Choose Tra-Cal
5-Day Turnaround
Prepaid Ship-In and Return Shipping
Onsite Calibration at Your Facility
Comprehensive Asset Database Management
Dedicated Account Managers
Veteran-Owned & Operated
Unwavering Quality Guarantee
Calibration Services Available to Ontario, CA Operations
Additional Calibration Options
How Tra-Cal Serves Ontario, CA
In-Lab Calibration:
Send your equipment to our ANAB-accredited ISO/IEC 17025:2017 laboratory with prepaid inbound and return shipping. Calibration is performed in a climate-controlled environment against documented procedures, with traceability through NIST. Standard turnaround is approximately five business days from receipt, and asset records are retained with automated due-date notifications.
Onsite Calibration:
Our metrologists travel to Ontario-area facilities for fixed assets, large inventories, and instruments that should not be moved. Calibration is performed in a controlled environment at your site on a scheduled appointment, with the same accreditation, NIST traceability, and documentation as in-lab service.
Frequently Asked Questions
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Yes. Tra-Cal supports Ontario and the surrounding Inland Empire through two intake paths: prepaid ship-in service with a typical five-business-day turnaround, and onsite calibration appointments at your facility. The same ISO/IEC 17025:2017 accreditation, NIST-traceable standards, and certificate format apply either way.
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Yes. Tra-Cal maintains ISO/IEC 17025:2017 accreditation. ANSI/NCSL Z540-1 and Z540.3 conformance is also available. The current scope of accreditation is published on the Tra-Cal Certificate of Accreditation page.
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Standard turnaround for in-lab calibration is approximately five business days from receipt of the instrument. Expedited turnaround is available on request and depends on instrument type, parameter scope, and current lab volume.
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Yes. Each calibration certificate documents traceability through NIST, includes as-found and as-left data where applicable, lists the standards used, the calibration procedure reference, environmental conditions, and the technician. Certificates are designed to support AS9100, ISO 13485, ISO 9001, and FDA 21 CFR Part 820 quality system audits.
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Ontario is a major logistics and air-cargo hub anchored by Ontario International Airport, alongside distribution centers, aerospace and defense suppliers, and industrial manufacturers across Ontario, Rancho Cucamonga, Chino, Fontana, and the wider Inland Empire. We calibrate the electrical, dimensional, mechanical, temperature, and pressure instruments these teams rely on to stay audit-ready.
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Yes. Onsite calibration is available for fixed assets, large inventories, and instruments that should not be transported. A scheduled appointment is set with your team, and the calibration is performed in a controlled environment at your facility with full documentation.
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A packaging guide is provided when you request a quote. In general, instruments should be powered down, accessories included where required for calibration, and packed with appropriate cushioning. A prepaid shipping label is available for qualifying customers.
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Yes. Tra-Cal offers metrology database management with automated due-date notifications, historical certificate retrieval, and asset-level records suitable for audit support.
Visit Our Gaithersburg Facility or Find Us Near You
Tra-Cal
Lab
8577 Atlas Drive
Gaithersburg, MD 20877
Servicing Local Ontario Zip Codes:
91758, 91761, 91762, 91764, and nearby Inland Empire ZIP codes including 91730 (Rancho Cucamonga), 91710 (Chino), 92335 (Fontana), and 91763 (Montclair).
Contact Tra-Cal for Calibration Support Today
Tell us your instrument list, required turnaround, and accreditation level. Most quote requests are returned within one business day. Tra-Cal supports quality, engineering, and operations teams across Ontario, Rancho Cucamonga, Chino, Fontana, and the wider Inland Empire with ANAB-accredited ISO/IEC 17025:2017, NIST-traceable calibration. Call 301-527-9200 or request a free quote online.