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Commercial Rooftop Unit Repair and Replacement Services for RTU Package Systems

Defective economizers, faulty blower motors, and cracked heat exchangers in rooftop units cause severe indoor temperature spikes for commercial tenants. Our experienced commercial HVAC technicians inspect 3-ton to 50-ton RTUs to execute precision repairs or replacements. Count on our fast response, honest recommendations, and professional workmanship to support business operations with reliable system performance, reduced downtime, and long-term efficiency.
Rooftop Unit Services

Professional Rooftop Unit Services Services

Packaged rooftop unit (RTU) inspection, curb adapter fitting, and complete unit retrofits.

Package RTU Retrofit & Swap

Turnkey replacement of aging packaged rooftop units with high-efficiency modern commercial RTUs.

Rooftop Curb Adapter Installation

Custom sheet metal roof curb adapters ensuring leak-proof transitions between new RTUs and existing openings.

RTU Gas Burner Service

Cleaning gas burners, testing spark ignitors, and inspecting tubular heat exchangers on rooftop units.

Condenser Fan Motor Repair

Replacing commercial condenser fan motors and heavy-duty fan blades on rooftop equipment.

Commercial Flue Vent Check

Inspecting power vent exhaust blowers and flue caps to ensure safe combustion discharge.

Rooftop Heat Exchanger Test

Digital flue gas analysis and cell inspection to prevent carbon monoxide entry into commercial supply air.

RTU Leak Diagnostics

Locating and repairing refrigerant leaks on rooftop coils, filter driers, and expansion valves.

Rooftop Vibration Dampening

Installing isolation spring mounts and flexible duct connectors to eliminate rooftop equipment vibration noise.

Rooftop Unit Services Professional Service Overview

Packaged rooftop units (RTUs) are the workhorse of commercial HVAC, combining heating, cooling, compressor, and blower components into a single weatherproof cabinet mounted on building roof curbs. Because RTUs are exposed to harsh Texas sun, hail, heavy rain, and continuous operation, rooftop components require specialized technician expertise. Airnet HVAC offers comprehensive rooftop unit services—including RTU repair, curb adapter retrofitting, gas burner maintenance, condenser fan replacement, and complete unit replacements. Our technicians service all major commercial RTU brands, including Carrier, Trane, Lennox, Rheem, and York. We perform thorough rooftop diagnostics, resolve gas ignition issues, repair economizer dampers, and seal duct connections. Through fast response times, crane lift coordination, and quality workmanship, we keep your rooftop equipment running efficiently and reliably.

Common Issues We Solve

Rooftop Unit Mechanical Outages

RTU compressor or blower motor failure leaving commercial spaces without heating or cooling.

Rooftop Water Leaks into Facility

Rusted RTU drain pans or compromised roof curb flashing causing water leaks into building ceilings.

RTU Gas Ignition & Burner Failures

Gas valve or spark ignitor failure preventing rooftop unit heating during cold weather.

Noisy Rooftop Compressor Vibration

Worn isolation mounts causing loud equipment vibration noise to transmit into office spaces below.

Fouled Condenser & Evaporator Coils

Rooftop coils clogged with dirt and debris, causing high compressor head pressure.

Professional Solutions & Benefits

Packaged RTU Mechanical Diagnostic

Thorough testing of 3-phase compressors, fan motors, gas valves, and economizer controls.

Custom Roof Curb Adapter Installation

Fitting leak-proof metal curb adapters when swapping out old RTUs for new commercial models.

RTU Gas Heat Exchanger Service

Cleaning gas burners, inspecting tubular heat exchangers, and testing flue exhaust draft.

Rooftop Condenser Fan Motor Swap

Replacing failed outdoor fan motors and heavy-duty fan blades on rooftop cabinets.

Vibration Isolation Mount Setup

Installing spring isolation mounts and flexible duct connectors to stop building vibration noise.

Complete RTU Turnkey Replacement

Coordinating crane lifting, curb fitting, and electrical hookups for fast turnkey RTU replacement.

Rooftop Packaged HVAC Unit Answers

Helpful guidance on commercial RTU repairs, economizer operation, curb adapter retrofits, and airflow balancing.

Rooftop Packaged HVAC Unit Answers - NATE-Certified Technician Diagnostic

Available for Commercial HVAC Service in These Texas Cities:

Expert Rooftop Unit Services Solutions Crafted for Your Home

Partner with licensed Texas specialists for precision diagnostics, transparent upfront quotes, and long-lasting climate control reliability.