Commercial Packaged Unit and Rooftop Unit Services

Packaged units and rooftop units (RTUs) are the HVAC backbone for commercial buildings across Middle Tennessee, from retail centers and office buildings to warehouses and light industrial facilities. These self-contained systems consolidate heating, cooling, and ventilation into a single unit, making them the preferred choice for buildings without dedicated mechanical rooms. Interstate AC installs, repairs, and maintains commercial packaged and rooftop units for property managers and businesses throughout Nashville and Southern Kentucky.

Signs Your Business Needs Packaged Unit or Rooftop Unit Service

If your building’s packaged or rooftop unit is aging or showing performance issues, don’t wait for a complete failure during the peak of a Tennessee summer or winter. RTUs that are neglected gradually lose efficiency and reliability before they fail entirely.

Call our team if you’re experiencing any of the following:

Uneven heating or cooling across different areas of the building
Higher-than-expected energy bills for the building’s size and usage
The unit is short-cycling – running in brief, frequent bursts rather than full cycles
Unusual sounds from the rooftop unit – rattling, grinding, or banging
Visible refrigerant leaks, excessive rust, or physical damage to the unit
The system is more than 12-15 years old and hasn’t been recently evaluated
Indoor humidity levels that your system can’t bring under control

Packaged and rooftop units operate in harsh outdoor conditions year-round. Regular service and timely repairs extend equipment life significantly and prevent the cost of emergency replacement.

Maintenance Programs

We offer proactive, tailored maintenance plans to ensure that your HVAC system performs at its best. Regular inspections and service minimize the risk of costly repairs.

Schedule a Repair Today

24/7 Emergency Services

HVAC problems can occur at any time, and our team of expert technicians are available 24/7 to address any emergency, providing the expertise needed to resolve issues quickly.

Benefits of Professional Packaged Unit and Rooftop Unit Service

Many commercial building owners treat their RTUs as “set it and forget it” equipment, servicing them only when something breaks. That approach leads to higher energy costs, shorter equipment life, and unexpected downtime at the worst possible times.

Scheduling professional packaged unit service with Interstate AC delivers:

Optimized energy performance

A properly maintained RTU operates at or near its original efficiency rating. Dirty coils, low refrigerant, and worn components can increase energy consumption by 20-30% over time.

Extended equipment life

Commercial packaged units represent a significant capital investment. Regular maintenance,coil cleaning, belt and filter replacement, refrigerant checks, can add years to the equipment’s service life.

Reduced emergency breakdowns

Most RTU failures are preceded by warning signs that a trained technician can catch during a scheduled maintenance visit. Planned repairs are far less expensive than emergency replacements.

Compliance with warranty requirements

Most commercial HVAC equipment manufacturers require documented annual maintenance to maintain warranty coverage. Our service records protect you.

Comfort across your entire building

A well-functioning RTU delivers consistent temperature and humidity control throughout your occupied space, reducing tenant and employee complaints.

Our Packaged Unit and Rooftop Unit Service Process

Interstate AC’s licensed technicians are experienced working with all major commercial packaged unit manufacturers. We schedule service to avoid disruption to your tenants, employees, or business operations.

Here’s what a comprehensive RTU service visit includes:

Unit inspection and diagnostics

We inspect all accessible components, heat exchanger, evaporator and condenser coils, compressor, economizer, controls, and electrical connections, and document the unit’s current condition.

Coil cleaning

We clean evaporator and condenser coils to restore heat transfer efficiency, one of the highest-impact steps for recovering lost system performance.

Filter replacement and airflow check

We replace filters and verify supply and return airflow rates to ensure the unit is moving the right amount of air for your space.

Refrigerant check

We verify refrigerant charge and inspect for any signs of leakage at connections and service ports.

Controls and safety check

We test thermostat response, economizer function, safety switches, and electrical connections before completing the visit.

Written service report

We provide a documented record of all findings and any recommended repairs, with no-pressure options for next steps.

Commercial HVAC Services For Business Owners

Beyond scheduled maintenance, Interstate AC handles full rooftop unit replacements, emergency repairs, and controls upgrades for commercial properties throughout Middle Tennessee. We work with all major manufacturers and can source replacement equipment quickly when a unit is beyond cost-effective repair.

Our team also offers preventive maintenance agreements that cover all rooftop and packaged units on your property under a single scheduled service plan. Giving you documented maintenance records, priority service scheduling, and predictable operating costs.

Reach out to Interstate AC today if you’re interested in scheduling rooftop unit service or replacement for your Middle Tennessee or Southern Kentucky property. Call 615-802-2665 to speak with a specialist and set up an appointment.

Frequently Asked Questions

How long do commercial rooftop units typically last?

With regular professional maintenance, commercial packaged and rooftop units typically last 15–20 years. Units that are neglected or run without scheduled service often fail in the 10–12 year range. If your RTU is approaching the 12–15 year mark, Interstate AC can perform an efficiency and condition assessment to help you decide between continued maintenance and proactive replacement.

Can you repair a rooftop unit, or does it always need to be replaced?

Most rooftop unit problems, failed compressors, refrigerant leaks, failed economizers, controls failures, and heat exchanger cracks, can be repaired if the unit is within its serviceable life. Our technicians will give you an honest assessment of whether repair or replacement makes more financial sense for your specific unit, including a cost comparison when appropriate.

Does Interstate AC service rooftop units for commercial properties across Middle Tennessee?

Yes, Interstate AC services commercial packaged and rooftop units throughout the Middle Tennessee and Southern Kentucky region, including Nashville, Franklin, Murfreesboro, Brentwood, Clarksville, Bowling Green, and Owensboro. Visit our areas we serve in Middle Tennessee and Southern Kentucky for a complete list.

Areas We Serve

We proudly serve regions in Tennessee & Southern Kentucky. Our team is committed to providing reliable, high-quality service wherever you are located within our coverage area. For more details about service availability in your specific location, please Contact Us or give us a call at (615) 802-2665

Antioch, TN
Ashland City, TN
Belle Meade, TN
Bellevue, TN
Brentwood, TN
Clarksville, TN
Columbia, TN
Dickson, TN
Donelson, TN
Fairview, TN
Forest Hills, TN
Franklin, TN
Gallatin, TN
Goodlettsville, TN
Greenbrier, TN
Hendersonville, TN
Hermitage, TN
La Vergne, TN
Lebanon, TN
Madison, TN
Mt. Juliet, TN
Murfreesboro, TN
Nashville, TN
Nolensville, TN
Pleasant View, TN
Portland, TN
Smyrna, TN
Spring Hill, TN
Springfield, TN
Thompson’s Station, TN
White House, TN

Bowling Green

Hopkinsville

Partner With Interstate AC

At Interstate AC, we believe success is built through strong partnerships. We work with skilled HVAC professionals who want consistent work, long-term growth, and a company they can rely on. If you’re ready to grow with a trusted HVAC partner, let’s connect.

Partner With Us