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Rock Hard technician inspecting Carrier condenser electrical panel during emergency commercial AC repair
Commercial AC Repair · North Texas

Commercial AC Repair
in North Texas

Fast diagnosis and repair for commercial AC failures throughout North Texas. RTUs, split systems, and mini-splits — OEM parts, licensed technicians, first-visit resolution on most repairs. Call 469-290-7316 now.

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Licensed & Insured
OEM Parts Only
Fast Response
5-Star Rated
Commercial AC repair · North Texas

Fast commercial AC repair — first-visit resolution on most issues

When a commercial AC system goes down in North Texas summer heat, you need a technician who arrives prepared to fix it — not just diagnose it and order parts. Rock Hard technicians come stocked with OEM parts for the most common commercial AC failures so most repairs are completed on the first visit without a return trip.

We work on all types of commercial air conditioning equipment — rooftop package units, commercial split systems, ductless mini-splits, and commercial air handlers. We service all major brands including Trane, Carrier, and Lennox.

Common commercial AC repairs we handle

Capacitor and contactor replacement — the most frequent single-point failure on commercial AC systems, especially after a long North Texas summer
Condenser fan motor failure — a failed fan motor overheats the condenser and triggers high-pressure lockout; we carry common motor sizes
Refrigerant leak detection, repair, and recharge — we locate the leak, repair it, and recharge to manufacturer specification
Compressor diagnosis and replacement — compressor failure is the most expensive AC repair; we diagnose accurately before recommending replacement
Electrical panel and control board diagnostics — failed control boards, blown fuses, and wiring issues found and resolved
Evaporator coil cleaning and repair — frozen coils, blocked coils, and coil leaks diagnosed and addressed
Thermostat and zone control diagnostics — incorrect setpoints, failed sensors, and communication faults between controls and equipment
Condensate drain clearing — a blocked condensate drain will shut a commercial AC system down via the safety float switch
Blower motor and belt service — weak blower motors reduce airflow and add heat stress to the compressor
Rock Hard technicians opening commercial HVAC unit panel to diagnose and repair AC failure
We use OEM parts — repairs that hold

Aftermarket AC components are cheaper upfront but fail faster — often within the same season. We stock and source OEM parts for all major commercial HVAC brands so every repair we complete is built to last. Using OEM parts also preserves your equipment's manufacturer warranty coverage.

Signs your commercial AC system needs repair

Not cooling — unit runs but space temperature won't drop
Blowing warm or lukewarm air from supply vents
Unusual sounds — clicking, grinding, or banging from the RTU or condenser
Unit short-cycling — turning on and off repeatedly in short intervals
Visible refrigerant line ice or frost
Water pooling around the unit or dripping from supply vents
Significant jump in energy costs without a usage change
Error code or alarm light on the unit or building controls
Rock Hard technician accessing commercial RTU electrical compartment during AC repair
Two Rock Hard technicians diagnosing commercial mini-split condenser failure
Why speed matters

A commercial AC failure costs more every hour it goes unrepaired

In a restaurant, customers leave when it's uncomfortable. In a retail store, dwell time drops and sales follow. In a warehouse or production facility, heat becomes a safety concern. The longer a commercial AC system is down in North Texas summer, the more expensive the situation becomes — in direct lost revenue, staff productivity, and potential equipment or inventory damage.

Rock Hard prioritizes commercial AC emergencies. We dispatch fast, arrive with OEM parts for common failures, and resolve most repairs on the first visit so your business gets back to normal as quickly as possible.

Fast dispatch for commercial AC emergencies throughout North Texas
OEM parts on the truck — first-visit resolution on most failures
Root cause diagnosis — we fix the problem, not just the symptom
Post-repair report with any follow-up recommendations
Call 469-290-7316 Now
Rock Hard technicians on rooftop responding to commercial AC failure
Rock Hard technician servicing commercial RTU during repair visit
Rock Hard technicians on rooftop diagnosing commercial AC
Rock Hard technician servicing Carrier commercial condenser
Rock Hard Refrigeration black wrapped service truck
Rock Hard technician reviewing wiring diagrams for commercial AC repair planning
Service areas

Serving North Texas businesses

Based in Aubrey, TX — commercial HVAC service across Denton and Collin Counties and the greater DFW metro.

Aubrey, TX
Frisco, TX
McKinney, TX
Prosper, TX
Plano, TX
Allen, TX
Lewisville, TX
The Colony, TX
Princeton, TX
View all areas
Frequently asked questions

Commercial AC repair — answered

Do you offer emergency commercial AC repair in North Texas?
Yes. A commercial AC failure during North Texas summer heat directly impacts business operations. We prioritize commercial AC emergencies and dispatch quickly to businesses across Aubrey, Frisco, McKinney, Plano, and all of North Texas. Call 469-290-7316 for urgent service.
What are the most common commercial AC repairs?
The most common commercial AC repairs are capacitor and contactor replacement, condenser fan motor replacement, refrigerant leak repair and recharge, electrical and control board issues, and condensate drain clearing. Rock Hard technicians carry OEM parts for these common failures so most repairs are resolved on the first visit.
Why is my commercial AC running but not cooling?
If your commercial AC system is running but not cooling, common causes include low refrigerant charge from a leak, a failed condenser fan motor causing the system to trip on high pressure, a dirty condenser coil that can't reject heat effectively, or a failing compressor. A Rock Hard technician can diagnose the exact cause on the first visit.
Do you use OEM parts for commercial AC repairs?
Yes. We use OEM parts for all commercial AC repairs — no aftermarket substitutes. OEM parts maintain your equipment's manufacturer warranty and provide longer-lasting repairs. We stock and source OEM components for Trane, Carrier, Lennox, and all major commercial HVAC brands.
What North Texas areas do you serve for commercial AC repair?
We serve businesses throughout North Texas including Aubrey, Frisco, McKinney, Prosper, Plano, Allen, Lewisville, The Colony, Princeton, and surrounding communities in Denton and Collin Counties.
Get started

Request commercial AC repair service

Tell us your system type, what it is doing, and your North Texas location. For urgent failures, call directly.

RTUs, split systems, mini-splits — all major brands
Licensed & insured · OEM parts · North Texas coverage
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469-290-7316
1518 Navo Rd Ste A1, Aubrey TX 76227
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