PHI Service Agency Inc
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About PHI Service Agency Inc
PHI Service Agency Inc operates as an HVAC testing and balancing firm based in San Antonio, Texas, with additional offices serving Austin, Corpus Christi, and the Rio Grande Valley. The company holds dual certifications from NEBB and AABC, credentials that distinguish it from general HVAC contractors. With a perfect 5-star rating from a single verified review, PHI focuses exclusively on the technical discipline of testing, adjusting, and balancing environmental systems in commercial and residential buildings. The San Antonio headquarters handles the majority of the firm's Texas operations.
What separates PHI Service Agency from typical HVAC companies is its narrow specialization in testing and balancing procedures. The firm does not install equipment or handle emergency repairs; instead, it verifies that installed HVAC systems perform according to design specifications. This includes measuring and adjusting air and water quantities, establishing equipment performance, verifying automatic controls, and conducting sound and vibration assessments. Their NEBB and AABC certifications indicate adherence to nationally recognized industry standards for procedural accuracy.
A reviewer of PHI Service Agency's work described a technician who arrived at a jobsite and systematically verified all environmental systems against design objectives. The specific scenario involved measuring fluid quantities, recording performance data, and reporting results to ensure the building's HVAC installation met required specifications. This testing and balancing process is distinct from conventional HVAC service calls and represents the firm's core offering.
What Customers Say
One client awarded a 5-star rating after PHI verified that their building's HVAC systems performed as designed, with the technician documenting measurements and performance data.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| TuesdayToday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
HVAC Testing and Balancing
Systematic verification that building environmental systems meet design specifications for air and water flow quantities.
Performance Verification
Measuring and establishing HVAC equipment performance to confirm it operates as designed.
Automatic Controls Verification
Testing and documenting that automated building controls function correctly across all HVAC systems.
Air Quantity Measurement
Measuring and adjusting air flow rates to ensure proper distribution throughout building zones.
Water Quantity Measurement
Measuring and establishing fluid quantities in hydronic HVAC systems to meet design requirements.
Sound Level Testing
Measuring acoustic levels produced by HVAC equipment to verify compliance with design criteria.
Vibration Analysis
Conducting vibration measurements to identify mechanical issues and ensure proper equipment operation.
TAB Reporting
Recording and reporting all measurement results for project documentation and compliance purposes.