Commercial HVAC Services
Rooftop AC Repair & Replacement
When a commercial package unit fails in New Orleans, you lose inventory, productivity, and customers. We provide priority emergency service and preventive maintenance for restaurants, retail, and office buildings.
Commercial Capabilities
- Rooftop Package Units (RTUs) up to 25 tons
- Multi-zone Split Systems
- Chilled Water Systems
- Commercial Refrigeration
- Exhaust & Make-up Air
Protecting Your Operations
Commercial HVAC equipment operates under significantly higher stress than residential systems. A rooftop unit on a New Orleans restaurant has to fight extreme ambient heat, high humidity, and grease-laden exhaust air simultaneously. Getting your rooftop ac unit replace by New Orleans Mechanical pros, is the right decision!
A down RTU is not just a comfort issue—it can become an operational crisis. If the dining room is 85 degrees, customers leave. If kitchen exhaust or make-up air fails, the line may have to shut down. We diagnose the mechanical fault while keeping the operating consequences in view.
RTU Replacement and Crane Lifts
When a commercial unit reaches the end of its lifecycle, replacement requires careful coordination. We handle the entire process: load calculations, curb adapter fabrication, crane scheduling, permitting, and final commissioning. We minimize disruption by scheduling lifts during off-hours or early mornings.
Preventive Maintenance Contracts
The most expensive repair is the one that shuts down your business on a Friday night. Our commercial maintenance contracts are designed to catch failing components before they cause a catastrophic breakdown.
- Quarterly filter changes and belt inspections
- Bi-annual coil cleaning and chemical treatment
- Contactor and capacitor testing under load
- Condensate drain clearing and pan treatment
- Priority emergency response
A Commercial Diagnostic Starts with the Operating Sequence
Package units combine the blower, heat section, refrigeration circuit, dampers, and controls in one cabinet, but the fault can begin outside the box. We confirm the thermostat or building-control call, occupied schedule, safeties, disconnect, incoming voltage, and any phase or voltage monitor before changing components. On multi-unit buildings, we also confirm which zone and which RTU are actually serving the complaint.
The mechanical inspection includes filters, evaporator and condenser coils, blower wheels, belts, sheaves, bearings, motors, drains, refrigerant temperatures, compressor amperage, contactors, and capacitors. A loose belt can look like a refrigeration problem because airflow falls and the coil ices. A failing bearing can overload a motor or variable-frequency drive. A dirty condenser coil can raise head pressure until a compressor safety opens during the hottest part of the afternoon.
Economizers and outside-air dampers deserve their own test. A damper stuck open can flood the building with hot, humid outside air; a damper stuck closed can create ventilation complaints. Linkages, actuators, sensors, and control logic all have to agree. We verify the commanded position and the physical position instead of assuming the display tells the whole story.
A rooftop unit is down during business hours?
Call with the unit number, tenant or zone affected, access instructions, and any control alarm. That information saves roof time.
Roof Exposure, Curbs, and Water Entry
New Orleans rooftop equipment sits in sun, wind-driven rain, salt-laden air, and storm debris. Cabinet panels loosen, service-door gaskets fail, fasteners corrode, and exposed wiring ages. The roof curb and flashing also matter. Water near a ceiling diffuser is not always condensate; it may be rain entering around a curb, penetration, or damaged roof membrane.
We inspect visible curb condition, base rails, drain routing, panel fit, and penetrations that affect the mechanical installation. Roofing repairs belong to a qualified roofer, and structural questions belong to the appropriate professional. We document those boundaries so a mechanical repair does not conceal a roof problem.
Safe Access Is Part of the Scope
A technician needs an approved roof hatch, fixed ladder, or coordinated lift access and a safe path to the equipment. Wet membranes, poor edge protection, fragile surfaces, locked hatches, or unsecured ladders can stop work. Tell us about access restrictions, parking, loading zones, keys, alarms, and required escorts when the call is scheduled.
Maintenance Should Follow the Risk
A restaurant near a kitchen exhaust discharge needs more frequent coil inspection than a lightly occupied office. A medical tenant may need documented temperature response and a clearer emergency plan. Retail equipment with long open-door hours faces a different load from a closed warehouse. We set maintenance priorities around operating hours, contaminant load, filter history, drain history, equipment age, and the cost of an outage.
Useful records include filter sizes and dates, belt condition and tension, motor and compressor amperage, capacitor readings, coil condition, drain treatment, refrigerant temperatures, control alarms, and repair history. Trends reveal problems before they become a shutdown. A belt that needs repeated tightening may point to sheave wear or alignment. A contactor that keeps burning may be reacting to a motor or voltage condition.
Emergency service still matters, but preventive work gives the owner options. A weak motor found during a planned visit can be sourced and scheduled. The same motor failing during lunch service turns into an urgent shutdown with limited part choices. That difference is where maintenance earns its value.
Repair, Replacement, and Crane-Day Planning
Repair remains reasonable when the cabinet and heat exchangers are sound, parts are available, and the failed component is isolated. Replacement becomes more practical when compressors, coils, heat sections, controls, and cabinet condition create multiple large risks at once. We consider equipment age, refrigerant, repair history, operating hours, tenant needs, and whether the existing curb and duct connections can support a new unit.
A replacement plan covers equipment selection, curb adapter, weight and structural review where required, crane reach, street or parking access, roof protection, electrical requirements, gas and venting where applicable, controls, permits, weather, tenant communication, and startup. We schedule the shutdown window before the old unit is disconnected and commission the new equipment after the lift.
Owners comparing a repair with replacement receive the scope in a form they can budget. If the project is better served by a specialized controls contractor, roofer, electrician, or structural professional, we identify that coordination early. Visit the services overview for our full capabilities or review installation planning for comfort systems.
Commercial Rooftop Questions
What information should a manager provide before dispatch?
Provide the address, affected tenant or zone, unit number if known, hours of operation, roof-access method, key or escort requirements, and any alarm shown by the thermostat or building-control system.
Can you service a unit while the business stays open?
Many diagnostics and repairs can be completed during normal operations. Work involving a shutdown, crane, electrical modification, gas connection, or unsafe roof condition requires coordination. We explain the expected disruption before scheduling.
Does a roof leak mean the RTU is leaking?
Not necessarily. Water can come from a clogged condensate drain, failed pan, cabinet opening, curb flashing, roof membrane, or another penetration. We identify the mechanical source and document roofing conditions that require a roofer.
Parts, Controls, and Realistic Timelines
Many common contactors, capacitors, belts, and control components can be handled quickly. Factory boards, compressors, special motors, economizer assemblies, and proprietary controls may require model-specific sourcing. We give the manager the safe operating status, the confirmed failure, and the realistic part timeline so the property can plan temporary measures instead of waiting on a vague callback.
Before a planned shutdown, identify temperature-sensitive inventory, occupied areas, alarm contacts, and the person authorized to approve additional work. A short operating plan helps the technician sequence the repair and gives the manager a clear trigger for temporary cooling, relocation, or an earlier closure.