Repair & Diagnostics
Commercial HVAC Repair in Dallas and Fort Worth
Facility managers call us when a unit stops cooling, stops heating, or trips a breaker and nobody on staff can tell why. Our techs carry gauges, meters, and combustion analyzers so the same crew can work a rooftop package unit, a split system air handler, or a chiller loop without a second truck roll. We find the failure point first, then repair it.
- Same-day and next-day service calls
- Chiller plants up to 500 tons
- All major brands
What's covered
No-cool and no-heat calls
Diagnosis across compressors, heat exchangers, and control boards to find why a space stopped conditioning air.
Refrigerant leak detection
Electronic leak search, brazing repairs, and recharge to manufacturer specification once the leak is closed.
Electrical fault troubleshooting
Tracing tripped breakers, failed contactors, and burned wiring back to the component that caused them.
Capacitor and contactor replacement
Swapping worn start and run capacitors, along with pitted contactors that cause hard starts and chatter.
Cross-platform diagnostics
One service call covers rooftop units, split systems, and chiller plants without handing the job to a specialist.
Compressor and motor evaluation
Amp draw testing and mechanical inspection to determine whether a compressor or motor can be repaired or must be replaced.
Common symptoms
Facilities usually call about one or more of the following before a tech is ever dispatched.
- Unit runs continuously but supply air stays warm
- Equipment short cycles, shutting off within a few minutes of starting
- Breaker at the disconnect trips repeatedly
- Hissing or bubbling noise near the refrigerant line set
- Ice building up on an outdoor coil in the middle of summer
- Thermostat calls for cooling but the compressor never engages
- Burning odor coming from an air handler closet
How the visit works
- 1 Dispatch and intake
A tech arrives with a gauge set, clamp meter, and combustion analyzer so the visit covers electrical, refrigerant, and gas-side checks in one trip.
- 2 On-site diagnostics
We measure superheat, subcooling, amp draw, and control voltage to isolate the failed component instead of guessing.
- 3 Repair and verification
Once the part is replaced, we run the equipment through a full cycle and confirm temperature split before closing the ticket.
- 4 Parts and findings review
The tech walks the facility contact through what failed and what was replaced before leaving the site.
Equipment we service
Our techs carry diagnostic tools for equipment across manufacturers rather than specializing in one brand. Equipment we service includes:
Related services
Rooftop units
Package rooftop units carry most of the conditioning load for retail strips, office parks, and warehouses across DFW, and they take weather that indoor equipment never sees.
Chiller SystemsChiller repair
Chiller plants fail differently than package rooftop units, and a low charge fault on a water-cooled system rarely looks like the same fault on an air-cooled one.
Emergency ServiceEmergency repair
A conditioning failure at a data closet, a medical clinic, or a full retail floor does not wait for regular business hours, so we run 24/7 emergency dispatch for exactly those calls.
Available across Dallas and Fort Worth
This service runs on the same routes as the rest of our work, across the following areas.
Common questions
Do you work on rooftop units, split systems, and chillers?
Yes. Our techs carry diagnostic tools for all three equipment types, so a single visit can address whichever platform is installed at your facility.
Can you repair a unit that is out of refrigerant?
We locate the leak electronically, repair or braze the failure point, then evacuate and recharge to the manufacturer's specified charge.
What if the problem is electrical instead of mechanical?
We trace the circuit from the disconnect through the contactor and control board to find the component causing the fault, not just the symptom.
Do you offer emergency HVAC repair outside business hours?
Yes, we run 24/7 emergency dispatch for facilities that cannot wait until the next business day for a failed system.
Tell us about the equipment and the symptom, and we will get a technician scheduled.