Rooftop Units

Repair, replacement, and maintenance for packaged rooftop systems — handled by a team with the equipment and training to do rooftop work right.

Commercial Rooftop Unit (RTU) Services in San Antonio

Rooftop units are the workhorse of commercial HVAC — powerful, space-saving, and out of sight. But "out of sight" means problems often go unnoticed until comfort complaints start. Flo-Rite Mechanical services all types and sizes of packaged rooftop systems across San Antonio, from single-unit retail spaces to multi-RTU office buildings.

RTU diagnostics and repair, unit replacement and crane-set installations, economizer repair, curb adapters, filter and coil maintenance, and seasonal tune-ups that extend equipment life in the brutal Texas heat.

Customer testimonials

See Why Customers Trust Flo-Rite Mechanical

"Excellent experience with Flo-Rite. Communication was great. Price was right. Ron, the service tech, is one of the most conscientious and professional service people I've experienced."
Carl Galletti
Google Review
"I just had my 15 year old system replaced with a new Lennox system. The crew at Flo-Rite did a clean & excellent install. They showed up on schedule and answered all my questions. If your looking for service or need a completely new AC, I highly recommend calling Flo-Rite for the job."
DyNaMiKe (MC)
Google Review
"Flo-Rite is very professional company that delivers quality service from the field techs to the office personnel. Marissa Flores is exceptional in that she is friendly, keeps you posted, follows through and thoroughly on your service call. Very personalized and service beyond comparison. Highly recommend."
Fernando Yebra
Google Review
"Awesome company with great customer service. I was taken care of quickly and updated as to when technician was on the way. Technician was super nice and upfront about what needed to be repaired. It's hard to find a company that is honest and reliable but FLO-RITE is the real deal."

Andrea Medina

Google Review

"Fantastic service. This company is always on time, professional and reasonable in price. Jonathan was our serviceman and he is top-notch. Highest possible recommendation for this company. You can't go wrong with them."

Curby Graham

Google Review

"Great service! Very knowledgeable technician who serviced our units and provided recommendations as to what maintenance routine we should be on. Will definitely be using them again!"

Mark Maldonado

Google Review

Commercial HVAC Services

Our commercial HVAC services ensure your business operates smoothly with expert solutions tailored to your needs.

Chillers

Keep your system running at peak capacity with repairs, installs, and maintenance from licensed commercial specialists.

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Rooftop Units

Repair, replacement, and maintenance for packaged rooftop systems.

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Cooling Towers

Installation, repair, and maintenance that protects your cooling capacity, water quality, and indoor comfort.

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Boilers

Installation, repair, and maintenance for commercial boilers.

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AC Repairs

When the AC goes down in Texas heat, every minute costs you. Fast, honest commercial AC repair from licensed local technicians.

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Air Handlers

Repair, replacement, and maintenance for air handling units for every type of buildings.

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New Construction

Ground-up HVAC design and installation for new commercial buildings.

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Maintenance

Preventative maintenance that cuts energy costs, extends equipment life, and catches small problems before they become emergencies.

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Equipment Replacements

When repair stops making sense, we'll tell you straight and install the right replacement for your building and budget.

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View All Services

Why San Antonio businesses call Flo-Rite First

Veteran-owned and operated

Founded by a veteran. We run jobs with the same discipline and accountability.

Fast response, minimal downtime

When your system's down, your business is too. We prioritize getting you back online.

San Antonio based

We live here, work here, and answer to our neighbors,  not a corporate office in another state.

Request Service Today

Are you ready to hire a team dedicated to quality parts, superior service, and excellence? Contact our team to discuss your service needs and schedule a consultation.

(210) 301-1173
1803 Grandstand Dr Ste 200,
San Antonio, TX 78238
Mon – Fri: 8:00 AM – 5:00 PM
Sat – Sun: Closed
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