A zone that won't cool can be a failed compressor, a stuck damper, a drifted sensor, or a sequence that quietly stopped making sense — and a contractor who can only see one side of that line ends up guessing at the other. Vertex was built to own both sides. Our technicians carry EPA 608 Universal certification for the refrigerant work and read the building automation system fluently, which is why most problems get diagnosed correctly on the first visit instead of the third.
We service the full commercial HVAC stack across Louisiana and the Gulf South — rooftop units, split systems, air handlers, chiller plants, boilers, pumps, and hydronics — and we install and program the DDC controls that run them. Preventive maintenance contracts, reactive service, emergency response, equipment replacement, and the capital planning to see it all coming.
This is Gulf South HVAC: long cooling seasons, dew points that punish every ventilation shortcut, and hurricane seasons that stress-test everything on the roof. Humidity control is not a feature down here — it is the job, and it shapes how we spec, sequence, and service every system we touch.
WHAT THIS COVERS
Each capability below is a full service line — follow the links for the deep dive on scope, process, standards, and pricing questions.
Mechanical service & repair
RTU, AHU, chiller, cooling tower, boiler, and hydronic service across all major brands — diagnostics, repair, replacement, refrigerant management, tower basin cleaning, and combustion work, documented after every visit.
Mechanical HVAC serviceHVAC controls installation & DDC
Controllers, sensors, actuators, panels, and field wiring for every class of commercial equipment, with sequences programmed to spec and verified point by point.
Controls installationPreventive maintenance contracts
Quarterly or biannual PM scoped to your actual equipment list — filters, belts, leak checks, electrical inspection, combustion analysis — with written reports and priority dispatch.
Service & PM contractsCommissioning & acceptance testing
Point-by-point verification and functional performance testing against the written sequence — for systems we installed and, independently, for systems we didn't.
CommissioningEnergy optimization
Schedules, resets, demand-controlled ventilation, and plant optimization that typically cut HVAC energy 20-40% on existing buildings — implemented through the controls you already own.
Energy managementEquipment replacement & capital planning
Repair-vs-replace analysis with cost, downtime, and remaining-life math, annual condition reports, and 1-3 year capital budgets — controls integration included in every changeout.
Replacement planningHOW WE'RE DIFFERENT
No residential. Commercial equipment, codes, and diagnostics are a different trade, and we stay where we are strong — offices, medical, industrial, institutional, and retail buildings.
Trend data and alarm history usually cut hours off a diagnosis. We check what the building already knows before we open a panel — and remote pre-diagnosis often starts before the truck arrives.
Major failures get both options priced with downtime and remaining-life analysis. The right call depends on your capital plan, not our sales quota.
Humidity-first engineering, hurricane preparation and recovery, and equipment recommendations that survive Louisiana rooftops and salt air.
PROOF, DOCUMENTED
Medical Office BAS Upgrade: 200,000 sq ft
Full controls retrofit of a 200,000 sq ft medical office building from proprietary DDC to Niagara N4 with BACnet integration. 32% energy reduction in year one.
Industrial Facility Energy Optimization
Chiller plant and air handling optimization for an industrial facility. Submetering, demand response, and automated sequencing delivered 38% HVAC energy reduction.