Commercial HVACR
Services in West Texas
GenMech AC provides full-service commercial HVACR in Midland, TX — chillers, boilers, building automation systems, commercial refrigeration, and large-tonnage HVAC installation. Family and veteran-owned since 2008, certified on Trane, Rheem, Bryant, and Lennox. Most HVAC companies service homes. We were built for commercial complexity.
Full-Spectrum Commercial HVACR
Most HVACR companies service homes. GenMech AC was built for commercial complexity — the systems most contractors won’t touch. Chillers, boilers, building automation, commercial refrigeration, and large-tonnage rooftop units. One provider, one call, one team that understands the full system.
Not sure what you need? Call us at (432) 528-8905. We’ll diagnose the issue, explain your options, and give you an honest number — no pressure, no upsell. If we can’t fix it, we’ll tell you that too.

Commercial HVACR Service Areas
Each service area has a dedicated team with the certifications and diagnostic tools to handle manufacturer-level work — not just general contractors with a wrench.
Chiller Repair & Maintenance
GenMech AC provides full chiller diagnostics, repair, and preventative maintenance in Midland, TX — a specialty most local HVAC companies don’t offer. Certified on all major chiller brands with OEM-level diagnostic tools.
- Centrifugal & reciprocating chiller repair
- Compressor rebuild & replacement
- Condenser & evaporator service
- Preventative maintenance programs
Boiler Repair & Maintenance
Boiler work requires a different level of training and certification than standard HVAC. GenMech AC has both — combustion analysis, safety controls, heat exchangers, and water treatment. We handle the systems most contractors won’t.
- Combustion analysis & tuning
- Safety control testing
- Heat exchanger inspection & repair
- Water treatment & chemical check
Building Automation Systems
GenMech AC provides full BAS integration, repair, and management — not just the individual units, but the entire building system. Few commercial HVAC companies in West Texas can offer this level of controls expertise.
- BAS installation & integration
- Controls programming & optimization
- System monitoring & troubleshooting
- Energy management solutions
Commercial Refrigeration
If your refrigeration goes down, your inventory goes with it. GenMech AC services walk-in coolers, walk-in freezers, display cases, reach-in units, and ice machines for convenience stores, restaurants, and commercial facilities.
- Walk-in cooler & freezer repair
- Display case & reach-in service
- Convenience store cooler repair
- Ice machine maintenance
HVAC Installation & Repair
From 20-ton rooftop units to full-building HVAC system replacements — GenMech AC handles commercial installations and repairs that require crane work, specialized rigging, and manufacturer-level commissioning.
- Rooftop unit installation (20-ton+)
- Full system replacement & retrofit
- Emergency commercial HVAC repair
- Startup commissioning & testing
Signs Your Commercial HVAC Needs Service
Commercial HVAC failures rarely happen without warning. These are the symptoms GenMech AC sees most often — if you recognize any of them, call before it becomes an emergency.
Uneven temperatures across zones — hot and cold spots that don’t match thermostat settings often point to failing zone dampers, BAS calibration drift, or ductwork issues.
Unusual noise from rooftop units — grinding, banging, or screeching sounds from commercial RTUs typically indicate bearing failure, loose components, or compressor issues needing immediate attention.
Energy bills climbing with no usage change — a 15-20% spike in HVAC-related energy costs usually means equipment is working harder to maintain the same output. Refrigerant leaks, fouled coils, or controls drift.
Frequent short cycling — units turning on and off rapidly indicate oversized equipment, low refrigerant charge, failing contactors, or thermostat/sensor problems.
Refrigerant odor or moisture around equipment — any visible leak, ice buildup, or chemical smell around chillers, condensers, or refrigeration units requires immediate professional diagnosis.
BAS alerts or override codes — building automation systems throwing repeated alarms or requiring manual overrides signal controls failures that compound into larger system problems.
How We Handle Commercial HVACR
GenMech AC follows a military-disciplined process on every commercial job — systematic diagnosis, transparent communication, and precision execution. No guesswork, no shortcuts.
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Initial Assessment & Diagnostics
We arrive with OEM-level diagnostic tools for Trane, Rheem, Bryant, and Lennox. Full system inspection — refrigerant pressures, electrical, mechanical components, and controls. We find the root cause, not just the symptom.
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Transparent Diagnosis & Options
You get a clear explanation of what’s wrong, why it happened, and your options — repair vs. replace, short-term fix vs. long-term solution. No industry jargon. No pressure. Real numbers.
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3
Precision Repair or Installation
Factory-spec parts. Manufacturer procedures. Whether it’s a compressor rebuild on a chiller or a 20-ton RTU swap, every repair meets or exceeds OEM specifications. No shortcuts.
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System Verification & Documentation
After every job — full system test, performance verification, and documented results. You know exactly what was done, what was measured, and what to watch for. We also recommend a PM plan to prevent the same issue from recurring.
Why Choose GenMech AC for Commercial Work
GenMech AC takes on the jobs other HVACR companies pass on — chillers, boilers, building automation. Here’s what sets us apart from general HVAC contractors.
Military-Trained Precision
Founded by a U.S. military gun mechanic. The same systematic diagnosis, precision execution, and accountability that military systems demand — applied to every commercial HVACR job.
Commercial-Grade Expertise
Certified on Trane, Rheem, Bryant, and Lennox. We service chillers, boilers, BAS, and commercial refrigeration — the systems that require manufacturer-level training and OEM diagnostic tools.
24-Hour Response Guarantee
Morning calls get same-day response. Late-day calls get first-thing-next-morning. Serving Midland, Odessa, Lubbock, and San Angelo — the entire West Texas region within a 300-mile radius.
One Provider, Full Coverage
Instead of coordinating three different contractors for your HVAC, refrigeration, and building automation — GenMech handles all of it. One team that understands how all your systems connect and interact.
Commercial HVACR Service Areas
GenMech AC is based in Midland, TX and serves the entire West Texas region. Commercial HVACR service within a 300-mile radius — Midland, Odessa, Lubbock, San Angelo, and surrounding communities.
Frequently Asked Questions
Do you service commercial HVAC systems like chillers and boilers?
What commercial HVAC brands does GenMech AC service?
How fast can you respond to a commercial HVAC emergency?
Do you handle building automation systems (BAS)?
What areas do you serve for commercial HVAC?
Get a Free Commercial Assessment
Tell us what you’re dealing with. We’ll diagnose the issue, explain your options, and give you an honest number — no pressure, no upsell.