Commercial Rooftop Units
Rooftop units carry the heaviest load of any commercial HVAC equipment on your building, and Florida’s heat and salt air wear them down faster than almost anywhere else in the country. Cortez repairs, installs, and replaces RTUs on hospitals, hotels, restaurants, retail centers, and manufacturing plants, and we work on units we didn’t install just as readily as our own.
Whether a unit needs a compressor swap or the roof needs a full replacement, we size and mount every RTU to your building’s curb, ductwork, and electrical service, not a generic spec sheet.
What a Commercial HVAC Maintenance Plan Should Cover
RTU Repair
Diagnosis and repair for units losing cooling, short-cycling, or tripping breakers before they fail completely.
RTU Installation
New units matched to your building’s curb, tonnage needs, and electrical capacity, not a one-size-fits-all swap.
RTU Replacement
Straight guidance on replacing an aging unit instead of paying for repeat repairs on borrowed time.
Curb & Rooftop Access Adjustments
Curb, ductwork, and structural fixes so a new or replacement unit sits level and drains the way it should.
How Rooftop Unit Service Works With Cortez
When you call Cortez about a rooftop unit, we start with a roof walk and a look at the existing curb, ductwork, and electrical whip before quoting a repair or a replacement. Coastal units corrode differently than inland ones, so we check cabinet and coil condition as closely as the mechanical components.
For a repair, we diagnose the failure first and give you the actual cost to fix it against what a comparable new unit would run, so you’re deciding with real numbers instead of a guess. For an installation or replacement, we handle the crane lift, curb adapter, and startup, and we test the unit under load before we leave the roof.
If a rooftop unit is past a reasonable repair, we’ll tell you plainly rather than billing for a fix that won’t hold.
Get a straight answer on your rooftop unit.
One call, one roof walk.
Rooftop Unit Questions We Hear Often
How do I know if my rooftop unit needs repair or replacement?
Age, refrigerant type, and repair cost relative to replacement cost all factor in. We give you both numbers before you decide, not just a repair quote.
How long does a rooftop unit installation take?
Most single-unit installs take one to two days, depending on crane scheduling and whether the existing curb can be reused.
Can you install a new rooftop unit on an existing curb?
Sometimes. We check the curb’s condition and dimensions against the new unit’s footprint first, and install a curb adapter instead of forcing a fit if it doesn’t match.
Do you work on rooftop units you didn't install?
Yes. We service and repair RTUs regardless of who installed them, as long as we can source parts or a comparable replacement.
How does salt air affect rooftop unit lifespan?
Salt air corrodes coils and cabinets faster than inland environments, which is why coastal rooftop units often need replacement years before their rated lifespan ends.
Commercial HVAC Projects Across Florida
From rooftop unit upgrades to full mechanical retrofits, this is the kind of commercial HVAC work our team handles across hospitals, hotels, retail centers, and manufacturing facilities.
Explore Our Other Services
A rooftop unit is one part of keeping a building’s HVAC running well. We also handle commercial AC repair, maintenance plans, and full system installations across Florida.
Tell us about your building, and we’ll follow up with the next steps. For emergency support, skip the form and give us a call!
- Call for 24/7 Emergency Support:
- 866-755-5211
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5012 US-41
Palmetto, FL 34221