Ensuring Quality, Performance, and Compliance Across Every Project

WSB provides dependable calibration services to keep your laboratory and field equipment accurate, compliant, and performing at their best. As an ISO/IEC 17025 A2LA‑accredited provider, our team delivers precise field and laboratory calibration for asphalt, concrete, soils, aggregates, and load cell testing equipment. With multiple crews positioned across the region, we offer flexible annual and off cycle calibration to reduce downtime and keep your operations running smoothly.

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CALIBRATION SERVICES

Our experts specialize in

Annual Equipment Calibration

Accredited annual calibration for materials testing equipment to meet DOT, QA, and industry compliance requirements ensuring accurate, reliable performance across your operations.

Asphalt Testing Equipment Calibration

Specialized calibration for gyratory compactors, ignition ovens, balances, density gauges, and temperature devices used in hot mix production and verification testing.

Concrete & Aggregate Equipment Calibration

Comprehensive calibration of air meters, compression machines, thermometers, and sieves to support consistent concrete quality and project specific compliance.

Soil Testing Equipment Calibration

Calibration for moisture content devices, Proctor tools, ovens, balances, and compaction equipment to ensure accurate geotechnical and earthwork evaluations.

Balance & Scale Calibration

Precision calibration for laboratory balances and scales used in asphalt, concrete, aggregate, and soils testing, with detailed documentation for audits and QA programs.

Temperature Device Calibration

Calibration of ovens, water baths, thermometers, and digital temperature sensors, helping maintain the controlled conditions critical for reliable materials testing.

On-Site Calibration Services

Mobile, on‑site calibration minimizes downtime while delivering the same accuracy, documentation, and compliance standards as our laboratory services.

Calibration Documentation & Certification

Complete certificates, documentation packets, and compliance records aligned with DOT, AASHTO, and internal QA program requirements.

Multi-Site Calibration Coordination

Streamlined scheduling and calibration management for clients with multiple labs or plants across Texas, Arkansas, and the surrounding region.

 

A2LA Accredited logo featuring the stylized letters ‘A2LA’ in dark blue and white over a faint globe illustration. Below the logo is an orange-outlined bar containing the word ‘ACCCREDITED’ in blue, with the text ‘CERT #6777.01’ beneath it.

Building Confidence Through Precision and Expertise

WSB helps you maintain accuracy, minimize risk, and keep your quality control program performing at its best. With accredited processes, responsive service, and experienced technicians, we deliver precise calibration and dependable support tailored to the needs of materials labs, hot‑mix producers, contractors, and public agencies.

A laboratory workspace with three people engaged in material testing tasks at separate workstations. The room contains large industrial equipment, metal sample containers, and wooden workbenches. A tall green testing machine stands in the center of the space, dividing the room. Shelving units, ovens, and tools line the back wall, contributing to an organized, functional lab environment.

OUR EXPERTISE

Shaping the future of infrastructure

Our teams of experts work together to seamlessly deliver innovative and ground-breaking service. Learn about each of our groups.

WSB Staff working in the lobby of the WSB headquarters.

Discover Our Difference

We partner with our clients and communities to build what’s next in infrastructure – the places, spaces, and systems that support our lives.