Commercial HVAC Repair — Rooftop Units, Commercial AC & VRF
Your building is losing money every hour it's uncomfortable. We diagnose on the roof, document what we find, and fix it.
(336) 318-5876
Commercial Unit Down? Call the Mechanical Line
Tell us the business type and equipment — restaurants, medical, and retail get prioritized.
(336) 318-5876 • Same-day commercial diagnostics • Mechanical contractor #36703
Quick Answer:
Dependable HVAC repairs commercial rooftop units, commercial AC split systems, VRF, and packaged heat pumps across Stanly and Montgomery County, NC, usually same day. Licensed mechanical contractor #36703. Call (336) 318-5876 and describe the unit and the symptom.
What's Actually Wrong With Your Commercial Unit?
Commercial equipment fails in patterns. Here's what your symptom usually means before we ever get on the roof — and what we'll be metering when we do.
Rooftop unit runs but blows warm
Failed contactor or capacitor, low charge from a coil leak, or a locked-rotor compressor. On gas/electric RTUs a tripped high-pressure switch from a filthy condenser coil is the most common culprit.
One zone hot, the rest fine
On multi-RTU or VRF buildings this is almost always a single unit or branch controller — not the whole system. We isolate the zone instead of quoting a building-wide fix.
Breaker trips when cooling starts
Shorted compressor windings, a grounded condenser fan motor, or an undersized/aged disconnect. We meter before we reset — repeatedly resetting a breaker on a shorted compressor destroys more than it saves.
Water staining the ceiling tiles
Plugged condensate trap or pan on a rooftop or ceiling-hung unit. Cheap to clear, expensive to ignore.
Kitchen won't cool during service
Make-up air and hood exhaust out of balance, pulling conditioned air straight out of the building. It's an airflow problem, not a cooling capacity problem.
No heat from the packaged unit
Ignition control, flame sensor, gas valve, or a cracked heat exchanger on gas heat sections — we test and document before condemning equipment.
How a Commercial Repair Call Runs
- 1
You describe the building, the equipment, and the symptom. We bring the right parts for that class of unit.
- 2
We meter the unit on site — electrical, refrigerant pressures, airflow, and controls — instead of guessing from the thermostat.
- 3
You get photos and readings from the roof, plus a repair price before any work starts.
- 4
We repair it, verify operation under load, and tell you what else on that unit is drifting toward failure.