In-Lab & Onsite Calibration Services in Sterling, VA
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 Sterling 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 Sterling, VA
Sterling sits in eastern Loudoun County near Route 28 and Route 7, close to Washington Dulles International Airport. NOAA's National Weather Service Sterling Field Support Center is a federal complex for calibrating meteorological observing systems, Northrop Grumman's space systems campus builds Cygnus resupply spacecraft, RTX maintains a site here, and Loudoun's Data Center Alley runs through town. Tra-Cal supports these operations with ANAB-accredited ISO/IEC 17025:2017 calibration of test, measurement, and laboratory equipment.
Our laboratory is in Gaithersburg, MD, roughly 30 miles from Sterling and inside our Mid-Atlantic pickup radius, so Loudoun County teams can use three intake paths: scheduled pickup and delivery, prepaid ship-in calibration with a typical five-business-day turnaround, and onsite calibration appointments at your facility. Each calibration is traced through NIST and accompanied by an audit-ready certificate supporting AS9100, ISO 13485, ISO 9001, and FDA 21 CFR Part 820.
Why Quality Teams in Sterling and Loudoun County Choose Tra-Cal
5-Day Turnaround
Convenient Pickup and Delivery Services
Onsite Calibration at Your Facility
Comprehensive Asset Database Management
Dedicated Account Managers
Veteran-Owned & Operated
Unwavering Quality Guarantee
Calibration Services Available to Sterling, VA Operations
Additional Calibration Options
How Tra-Cal Serves Sterling, VA
In-Lab Calibration:
Send your equipment to our ANAB-accredited ISO/IEC 17025:2017 laboratory with prepaid inbound and return shipping, or schedule a pickup from your Sterling facility. 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 mobile labs travel to Sterling-area facilities along the Route 7, Route 28, and Old Ox Road corridors 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’s ANAB-accredited ISO/IEC 17025:2017 laboratory is located at 8577 Atlas Drive in Gaithersburg, MD, roughly 30 miles from Sterling. Because Sterling sits inside our Mid-Atlantic service radius, quality teams there can use three intake paths: scheduled pickup and delivery, onsite calibration with our mobile labs, or prepaid ship-in with a typical five-business-day turnaround.
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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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Tra-Cal supports space and aerospace contractors along the Route 28 corridor, federal test and evaluation facilities including meteorological instrumentation programs, aviation and ground-support operations at Washington Dulles International Airport, data center and critical-facility teams across Loudoun County, RF and electronics manufacturers, precision machining and light-industrial shops in the Sterling Park corridor, and life-sciences laboratories throughout Sterling, Ashburn, Dulles, Herndon, and the surrounding Loudoun County communities.
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Yes. Our mobile calibration labs carry more than 100 instruments per van and travel to Sterling-area facilities for fixed assets, large inventories, and instruments that should not be transported. Work 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.
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Yes. Sterling is inside Tra-Cal’s Mid-Atlantic pickup and delivery radius. A scheduled route can collect instruments from facilities along the Route 7, Route 28, and Old Ox Road corridors and return them after calibration. Prepaid ship-in service with a typical five-business-day turnaround is also available, and a packaging guide is provided when you request a quote.
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Yes. Tra-Cal offers metrology asset database management with automated due-date notifications, historical certificate retrieval, and asset-level records suitable for audit support, coordinated by a dedicated account manager for your Sterling location.
Visit Our Gaithersburg Facility or Find Us Near You
Tra-Cal
Lab
8577 Atlas Drive
Gaithersburg, MD 20877
Servicing Local Sterling, VA Zip Codes:
20164, 20165, 20166, and nearby Loudoun County ZIP codes including 20147, 20148, 20170, and 20171.
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 Sterling, Ashburn, Dulles, Herndon, Leesburg, and the surrounding Loudoun County communities with ANAB-accredited ISO/IEC 17025:2017, NIST-traceable calibration. Call 301-527-9200 or request a free quote online.