Rooftop HVAC Units

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RTU Installation

Rooftop units play an important role in heating and cooling commercial buildings. We install RTUs for restaurants, offices, retail stores, warehouses, and multi-tenant spaces.

Our team sizes the unit correctly, checks duct and curb conditions, and follows Knoxville code and manufacturer requirements. Once installation begins, we remove any old equipment, set the new unit safely, and connect electrical and refrigerant lines.

A properly installed RTU improves comfort, efficiency, and long-term reliability.

Lifting a rooftop unit into place via crane by Buckner Plumbing

RTU Repair

When a rooftop unit fails, it can impact customers, staff, and daily business operations. Our technicians diagnose issues with motors, belts, coils, compressors, sensors, and electrical components.

We locate the problem quickly and explain your repair options with clear, honest guidance. If your unit is leaking, short cycling, or producing uneven temperatures, it may need immediate service.

Most repairs can be completed the same day to restore stable heating or cooling.

Maintenance & Inspections

Routine maintenance helps rooftop units run safely and efficiently. We provide scheduled inspections, filter changes, belt checks, and electrical testing for commercial RTUs.

Our maintenance service includes coil cleaning, refrigerant checks, airflow testing, and system performance reviews. These steps help reduce energy use, extend equipment life, and prevent unexpected breakdowns.

Property managers often schedule seasonal tune-ups to keep systems ready for peak weather.

Need fast RTU service? Call (865) 237-9646.

Request Commercial HVAC Service

If your rooftop HVAC system needs installation, repair, or maintenance, our team is ready to help. We provide dependable commercial HVAC service for businesses across Knoxville and East Tennessee.

Call (865) 237-9646 or request commercial HVAC service online.