VAV System Repair
Variable air volume system repair and calibration in San Antonio. Call today.
What We Cover
- VAV box actuator replacement
- Damper repair and calibration
- Airflow sensor diagnosis
- Reheat coil repair (hot water and electric)
- DDC controller troubleshooting
- Zone balancing and commissioning
- Minimum airflow setpoint adjustment
- Integration with central air handling units
Frequently Asked Questions
Common failures include stuck actuators, failed temperature sensors, clogged filters, and controller programming errors. Dallas dust and heat accelerate actuator and sensor wear.
Yes, if the central air handler has sufficient capacity. We perform airflow calculations to verify before adding zones.
We check the VAV box actuator position, measure discharge air temperature and volume, verify the sensor reading against a reference thermometer, and review the controller programming.
Yes. Trane, Johnson Controls, Siemens, Honeywell, Distech, and others.
Recent Project
South Texas Medical Center Medical Office: 45-Zone VAV Rebalance
A three-story medical office building near Methodist Hospital had persistent temperature complaints across multiple exam rooms. We found 12 VAV boxes with failed actuators and 8 with miscalibrated sensors. After replacing failed components and rebalancing all 45 zones, comfort complaints dropped to zero.
Related Services
Other Services You May Need
- Emergency HVAC response — HVAC emergencies don't wait for business hours. A chiller failure at 2 AM, a gas leak on a...
- HVAC replacement planning — Every commercial HVAC system has a lifespan. Rooftop units last 15-20 years. Chillers can ...
- System design and installation — A properly designed commercial HVAC system keeps energy costs low, tenants comfortable, an...
Ready to Protect Your Operations?
Our commercial HVAC team responds fast across San Antonio. Call now or request a consultation.
Request a Commercial HVAC Consultation
Tell us about your building and HVAC needs. Our team will respond within one business day.
210-XXX-XXXX
Mon-Fri 7AM-6PM, Sat 8AM-2PM
24/7 Emergency Line