Rooftop HVAC Units inIndianapolis, IN

We supply and install commercial rooftop units in Indianapolis, IN for contractors, property managers, and commercial developers across Marion County and the Indianapolis metro. RTU inventory runs from light commercial units (2–7.5 ton) through large-format warehouse units (15–30+ ton), including gas heat/electric cool, heat pump, and economizer configurations. We source rooftop units for managed buildings where repeatable replacement specs matter across a portfolio, rooftop HVAC units for offices where tenant comfort and zoning are priorities, and industrial rooftop HVAC units for facilities with heavier ventilation and runtime demands. Carrier, Trane, Lennox, and York options matched to current availability, warranty documentation, and building requirements.

Rooftop units, also called RTUs, are packaged HVAC systems installed on commercial roofs to provide heating, cooling, ventilation, and outside-air control from one self-contained cabinet. For Indianapolis commercial rooftop HVAC projects, they are usually the default choice for flat-roof retail, office, restaurant, warehouse, and mixed-use properties.

Replacement RTUs are matched to existing roof curbs to keep installation cost and downtime down. When budget and timing make surplus a smart option, we check liquidation rooftop units and surplus rooftop units before locking in the quote. Rooftop HVAC installation in Indianapolis covers crane coordination, rigging, ductwork reconnection, gas and electrical connections, and full system commissioning — no separate subcontractors. Same-week availability on most stocked tonnages. Send specs including tonnage, power type, and brand preference for a same-day commercial quote.

Rooftop units dominate the commercial HVAC landscape in Indianapolis for buildings under 10,000 sq ft. The self-contained design eliminates the need for an interior mechanical room, simplifies installation logistics, and keeps maintenance access on the roof — a real operational advantage for retail, restaurant, and strip mall properties throughout Marion County and surrounding commercial corridors in Carmel, Fishers, and Greenwood. Gas/electric packaged RTUs are the standard for most Indianapolis commercial buildings on natural gas service: low heating operating costs, electric cooling efficiency.

RTU tonnage selection requires a commercial load calculation that accounts for building envelope, occupancy, equipment heat loads, and Indiana's ASHRAE design temperatures (91°F cooling / 0°F heating). Light commercial applications — small office suites, restaurant dining rooms, retail bays — typically run 3–5 ton units. Mid-size offices and larger retail spaces commonly land at 7.5–15 tons. Warehouses, distribution centers, and big-box retail need 15–50+ ton systems, often split across multiple units on the roof for both capacity and maintenance flexibility. Three-phase power is required for most units above 7.5 tons; single-phase configurations cover smaller commercial applications.

RTU efficiency is measured by SEER2 (seasonal cooling) and IEER (integrated energy efficiency at part load). The federal minimum for commercial packaged units in the North region (Indiana) is 14.0 SEER2 as of 2023. High-efficiency commercial RTUs at 16–17+ SEER2 qualify for Duke Energy Indiana and AES Indiana commercial rebate programs, and can contribute toward ENERGY STAR building certifications for qualifying commercial properties in the Indianapolis metro.

RTU replacements are the majority of our Indianapolis commercial rooftop work. Most commercial buildings in the metro installed their current units in the 2000s and are now hitting end of service life at 15–20 years. Drop-in replacements matched to existing roof curb dimensions keep ductwork modification costs low — curb adapter kits handle tonnage changes that would otherwise require curb replacement. We guide you through curb measurements for site surveys and source curb adapters from all major manufacturers. Emergency replacement service is available for commercial RTU failures during Indiana's summer peak.