Your Partner in Calibration

At Washington Calibration, LLC we're committed to building strong partnerships and delivering unrivaled precision.

60+ Years of Calibration Excellence

Washington Calibration, LLC has been providing the greater Tempe, AZ area with reliable and cost effective metrology services since 1965. From our state-of-the-art lab to our efficient on-site services, we tailor a program that suits your quality requirements.

Our ISO/IEC 17025 accreditation reflects decades of dedication to technical excellence, customer service, and compliance — giving our customers confidence in every audit, inspection, and operation.

View Our Accreditation

Our Story

Imagine how much easier your job would be if you could rely on calibration experts who not only understood your industry, but also your company’s unique requirements. At Washington Calibration, LLC, that’s exactly what we provide. Our team has an average tenure of 16 years, with several employees who have been with us for over two and even three decades.

This isn’t just a reflection of how much we value our work—it’s a promise to our customers. With long-term, highly experienced staff, we build lasting relationships and deliver consistent, precise calibration services year after year.

Our story began in 1965, when Bob Washington founded Washington Granite. What started as a one-man operation specializing in granite surface plate resurfacing and calibration quickly grew alongside Phoenix’s young manufacturing community. Nearly twenty years later, Bob incorporated the business, renamed it Washington Calibration, LLC, and expanded into broader calibration services.

In 1984, our current owner, David Sabia, purchased the company and continued its growth. Under his leadership, we added a full-service calibration laboratory, an environmentally controlled dimensional calibration lab, and expanded our on-site services—all while maintaining our specialty in granite surface plate calibration and resurfacing.

Washington Calibration, LLC: Powered by Accredited Labs

Raising the Standard in Precision & Partnership

For more than six decades Washington Calibration, LLC has been a trusted name in precision calibration across South-Central Arizona — known for our commitment to accuracy, reliability, and personal service.

Now, as part of the Accredited Labs family, we’re elevating that legacy even further by combining our local expertise with the capabilities of a nationally recognized group of ISO/IEC 17025-accredited labs.

What This Means for You

Local Service, National Strength: You’ll continue receiving the responsive, hands-on service Washington Calibration, LLC is known for — now backed by the scale and support of a nationwide accredited calibration network.
Expanded Capabilities: Gain access to a wider range of metrology services, advanced technology, and enhanced compliance solutions tailored to your industry.
Transparent Pricing & Reliable Turnaround: Get straightforward quotes, flexible scheduling, and consistent service that helps reduce downtime and eliminate guesswork.
Confidence in Every Audit: From routine calibrations to high-stakes compliance, we make it easier to stay audit-ready and fully documented.

The Washington Calibration Commitment, Reinforced

As part of Accredited Labs, we’re delivering even greater precision, broader capabilities, and the same dedication to service you’ve counted on for decades.

Welcome to the next generation of calibration — where local trust meets national excellence.