Hess Air - A/C Service & Repair

Hess Air has kept Alamo and the surrounding Rio Grande Valley comfortable since 1976, earning a 4.7-star rating across 214 customer reviews. This full-service HVAC contractor operates around the clock, every day of the week, dispatching technicians from their location at 817 S. Alamo Road to handle everything from routine maintenance to emergency breakdowns. The company serves both homeowners and businesses throughout the region, including communities like San Juan, Donna, and Mercedes, making them a go-to resource for year-round climate control in South Texas.

What distinguishes Hess Air from regional competitors is their authorized dealer relationship with Trane, one of the most recognized names in cooling technology, combined with a maintenance club program that helps customers avoid costly repairs before they happen. Their expertise spans commercial AC systems, duct work design, and indoor air quality solutions including air purifiers. With nearly five decades of continuous operation, the company has built relationships with local builders and property managers who rely on their consistent service and technical know-how. The 24/7 on-call availability means a technician can arrive at your door whether the breakdown occurs on a holiday weekend or during an August heat wave.

Customer reviews repeatedly mentions technician Juan "Silver" Garcia, who performed a comprehensive annual inspection and took time to explain system operation in terms the homeowner could understand. Another reviewer described how the team arrived the same day to repair a heat exchange unit during a period of cold weather, with the technician providing informative updates throughout the service call. Multiple reviewers noted that Hess Air solved problems that previous contractors could not resolve, with one couple writing that they now have a service agreement after the company ethically handled a repair that two other well-known companies had mishandled.