HVAC Testing, Adjusting & Balancing (TAB)
HSS provides HVAC Testing, Adjusting, and Balancing (TAB) services to verify that building ventilation systems deliver the correct airflow rates, pressurization, and environmental performance required for safe and efficient operation.
We support hospitals, laboratories, compounding pharmacies, government facilities, and commercial buildings nationwide. As a Service-Disabled Veteran–Owned Small Business (SDVOSB), HSS brings professional testing expertise, reliable documentation, and responsive onsite coordination to both new construction and existing facility systems.
Core TAB Services
System Testing & Verification
- Supply & return airflow measurement and adjustment
- Air change rate (ACH) verification
- Room-to-room pressure relationships
- Diffuser and grille airflow balancing
- Fan performance & motor data evaluation
- Filter resistance and static pressure measurements
Environmental Performance Checks
- Temperature & humidity monitoring
- Ventilation rate and fresh air volume verification
- Occupant comfort troubleshooting
- Facility airflow control optimization
Specialized Healthcare & Controlled Environment TAB
- Pharmacy cleanrooms (USP 797 / USP 800)
- Isolation rooms (AIIR & Protective Environment)
- Operating & procedure rooms
- Sterile processing and decontamination areas
- Laboratory ventilation and fume hood exhaust supply balance
Standards & Regulatory Alignment
Our TAB services align with the most current industry and regulatory guidance — ensuring your reports satisfy any inspection or audit.
NEBB & AABC
Test & Balance Procedures
ASHRAE 62.1 & 170
Ventilation & Healthcare Airflow Standards
USP 797 / USP 800
Compounding Room Pressurization
CDC & NIH
Isolation Room Requirements
Commissioning Support
Facility Commissioning & Re-commissioning
Ensures compliance for:
Who We Support
Why Partner with HSS
Experienced Healthcare & Lab Airflow Specialists
Accurate investigation, clear interpretation, and realistic controls.
Clear, Actionable Reporting
Validated data suitable for regulatory review.
No Conflict of Interest
Recommendations based on safety needs — not vendor incentives.
Nationwide SDVOSB Service Capability
Works seamlessly with federal, healthcare, and research clients.
SDVOSB Certified
Service-Disabled Veteran–Owned Small Business — meets VA / DoD set-aside & subcontracting requirements
Ready to Schedule Your HVAC TAB Service?
Contact our team to discuss your facility's ventilation needs and get a customized testing plan.