Rooftop Unit (RTU) Repair in Dallas, TX
Commercial rooftop systems require precision, speed and minimal disruption. HVAC-R Finest provides RTU repair, maintenance and rooftop unit replacement for offices, retail centers and industrial properties across Dallas–Fort Worth.
Signs a Rooftop Unit Needs Service
Hot and cold spots
Parts of the building won't hold temperature. Often a failed compressor, a stuck damper or low airflow.
Runs constantly or short cycles
A unit that never stops, or turns on and off every few minutes, wastes power and wears out parts.
Water stains below the unit
A clogged condensate drain or a leak at the roof curb. Both get worse quickly if they're left.
Squealing, banging or vibration
Usually a worn belt, a failing bearing or a loose fan. Catching it early saves the motor.
Tripped breakers or no start
Often a failed contactor, capacitor or compressor, or a control fault.
Rising energy bills
Dirty coils, a stuck economizer or a low refrigerant charge make the unit work harder for the same result.
Commercial AC Repair for Rooftop Units
Our team specializes in keeping RTUs operating at peak performance, with advanced diagnostics and repair, strategic replacement planning, and performance and energy efficiency optimization.
- Compressors and refrigerant leaks
- Condenser fan and blower motors
- Belts, bearings and pulleys
- Contactors, capacitors and control boards
- Economizers and dampers
- Gas heat sections and ignition
- Coils and condensate drains
- Thermostats and controls
Repair or Replace a Rooftop Unit?
A rooftop unit typically lasts 15 to 20 years with regular maintenance. Replacement is worth planning when a unit is near that age, needs a major part such as a compressor or heat exchanger, uses R-22 refrigerant, or keeps failing in the busiest season.
We help you plan replacements ahead of a failure, so the work can be scheduled around your operations and budget, not done in an emergency. A new unit can often sit on the existing roof curb with an adapter, which avoids roof work.
Commercial HVAC Maintenance for Rooftop Units
Reduce unexpected failures and extend equipment lifespan with structured maintenance built for commercial environments.
Most rooftop units should be checked at least twice a year, before the cooling and heating seasons.
- Scheduled inspections
- System evaluations
- Filter changes, coil cleaning & system servicing
- Operational performance and efficiency checks
How a Service Call Works
Request service
Call (972) 372-4458 or send a request online, and tell us about the building and the problem.
Diagnosis on the roof
A technician inspects the unit and tests the parts to find the cause.
Clear recommendation
You get clear priorities and recommendations aligned with operational and budget needs.
Repair and report
We make the repair, confirm the unit is running properly and document the work.
Buildings We Service
From a single storefront to a portfolio of properties, we keep rooftop units running for:
- Office buildings
- Retail centers
- Restaurants and hospitality
- Warehouses and industrial
- Schools, churches and community facilities
- Healthcare and medical facilities
- Property management groups and multi-site portfolios
Rooftop Unit Service Across Dallas–Fort Worth
We service rooftop units in Dallas, DeSoto and the surrounding areas. For urgent problems, see emergency service. For new buildings, see new construction HVAC.
Frequently Asked Questions
What is a rooftop unit (RTU)?
A rooftop unit is a packaged heating and cooling system that sits on the roof. All of the main parts are in one cabinet, and it connects to the building's ductwork through the roof. It's the most common kind of commercial air conditioner on low-rise buildings.
Do you offer emergency rooftop unit repair?
Yes. Emergency and after-hours service is available.
How long does a rooftop unit last?
Typically 15 to 20 years with regular maintenance. Heat, hail and missed maintenance shorten that.
How often should a rooftop unit be serviced?
At least twice a year, before the cooling and heating seasons. Buildings with heavy use, such as restaurants, often need quarterly visits.
Do you work with property managers and multi-site portfolios?
Yes. Our scalable service model supports property managers and organizations with multiple facilities.
Can you provide a COI and W-9?
Yes. A COI and W-9 are available for vendor onboarding.
Rooftop Unit Down?
Call (972) 372-4458 or request commercial service online.