Proven TAB Expertise for High‑Performance Building Systems
NORESCO is a NEBB‑certified testing, adjusting, and balancing firm providing comprehensive airside and hydronic TAB services for new construction, major renovations, critical environments, and existing buildings requiring performance verification. We self‑perform all TAB work using a full inventory of NIST‑traceable, NEBB‑calibrated equipment and a specialized team of controls engineers and certified TAB technicians, ensuring precise system measurement and reliable, trusted results. NORESCO methods of executing TAB adhere to all current NEBB standards and procedures for testing environmental systems.
Comprehensive TAB Services for Optimal Performance
NORESCO delivers TAB services that help buildings perform as intended — ensuring comfort, efficiency, and reliable operation. By combining certified expertise with calibrated, high‑accuracy equipment, we provide precise system insights that reduce risk, improve energy performance, and verify that HVAC systems meet design and compliance requirements.
Airside TAB
- Proven TAB expertise for high‑performance building systems
- Analyzing energy consumption trends, identifying peak demand periods, and assessing operational impacts
- Airflow measurement and balancing for AHUs, RTUs, DOAS, fans, VAVs, and exhaust systems
- Supply, return, outdoor air, and zone pressure verification
- Damper, airflow, and pressurization sensor and controller calibration
- Terminal device calibration (VAV boxes, terminal units, airflow stations)
- Exhaust system testing including lab exhaust, specialty exhaust, and fume hood testing
- Air‑change measurements to confirm ventilation and outside‑air rates
- Pressurization testing for building zones and stairwells
Hydronic TAB
- GPM flow measurement, baselining, and balancing for all hydronic loops, supported by pump performance profiling including differential head, NPSH, speed, and power verification
- Chiller in/out GPM flow and pump calibration
- Coil performance testing including temperature differential analysis
- Whole system readiness checks
- Circuit setter, triple duty valve or dedicated balancing valve performance and calibration
- Flow sensor performance baseline and calibration
- Pump curve design vs actual plot and analysis
Pre-Construction and Construction TAB
- New construction TAB
- Pre‑construction baseline measurements and post-construction TAB
- System readiness checklists
- Equipment and system startup support
- Verification of installation conditions prior to functional testing
Verification and Support Services
Our TAB services deliver detailed measurement data that document airflow, hydronic performance, controls operation, and equipment behavior. We provide issue logs and corrective action recommendations to identify system deficiencies and guide improvements, along with verified performance results based on direct testing and measurement. Each project includes full NEBB‑standard documentation, such as certified TAB reports, equipment calibration records, and team member certifications. We also integrate TAB activities seamlessly with commissioning, retro‑commissioning, and continuous commissioning to ensure HVAC performance is validated throughout the building’s lifecycle.
Why Choose NORESCO?
- NEBB‑certified firm, technicians, instruments, and procedures ensure industry‑leading TAB quality.
- NORESCO owns a vast supply of calibrated, NEBB‑compliant equipment, which reduces costs to our clients and delivers faster, more reliable results.
- Multidisciplinary engineering expertise to drive accurate diagnostics and optimized performance.
- Nationwide TAB and verification support across commercial, institutional, industrial, healthcare, lab, and mission‑critical environments.