Rooftop Unit Services in Austin, TX

Rooftop units carry most of Austin's commercial square footage, and they are the equipment most likely to be run to failure — because they are out of sight, because replacing one requires a crane and a roof plan, and because nobody wants to be the person who put an unbudgeted five-figure line item in front of ownership. That deferral is exactly why RTUs so often fail in July, at the worst possible price, with the longest possible lead time.

CG Service Pros services, replaces, and manages RTU fleets across Austin for offices, retail centers, restaurants, warehouses, schools, and houses of worship. We work on all major packaged equipment — Carrier, Trane, York, Lennox, Daikin, Goodman, and Rheem — in gas/electric, heat pump, and straight-cool configurations, from 3-ton single-zone units up through large multi-zone and VAV rooftops.

Most RTU service calls in this market trace to a short list: failed run and start capacitors, pitted contactors, condenser fan motor failure, seized or shorted compressors, economizer dampers stuck closed (which quietly kills your free cooling and triggers stale-air complaints), plugged condensate drains backing water into the ceiling, cracked heat exchangers locking out on high limit, and dirty condenser coils driving head pressure and energy draw up together. Our trucks carry these parts, so most calls close on the first visit.

Replacement is where the real money and the real risk sit. A like-for-like swap sounds simple until the curb does not match, the new unit's weight requires structural review, the electrical service is undersized, the gas line needs resizing, or the crane needs a street closure permit and a Saturday. We handle all of it: field measurement, curb adapters or new curbs, structural and electrical verification, crane and rigging logistics, permitting, disposal of the old unit and refrigerant recovery, and full commissioning of the new one. Buildings that cannot go down during business hours get night and weekend changeouts.

For properties with multiple rooftops, we build a phased replacement plan instead of replacing everything at once or waiting for each unit to die. We rank units by age, condition data from PM visits, refrigerant type, and failure risk, then map replacements across budget years so the capital request is predictable and defensible. Owners get a document they can plan against; managers get no summer surprises.

The refrigerant transition matters more for RTUs than anything else in your building. R-410A equipment is being phased down, and replacement units now ship with R-454B or R-32, which carry different line-set, leak-detection, and code requirements. Repairing an aging R-410A rooftop can still be the right call — but the calculation has changed, and we will show you the numbers both ways rather than defaulting to whichever answer sells more equipment.