Reliant Air Conditioning Service is a family-owned, locally operated HVAC company serving the Dallas–Fort Worth area since 1983. The company provides residential heating and cooling services across communities including Dallas, Fort Worth, Irving, Plano, Frisco, Arlington, and surrounding areas. Its services include air conditioning repair, installation, replacement, and maintenance, as well as furnace and heat pump repair and heating maintenance. Reliant also offers indoor air quality services and seasonal system tune-ups, including a 20-point inspection.

The company emphasizes straightforward recommendations and transparent, flat-rate pricing. Its technicians are paid salaries rather than commissions, and Reliant offers free second opinions on replacement quotes, aiming to recommend repairs when practical and replacements when appropriate. Service is performed by NATE-certified technicians, with a stated satisfaction guarantee. Customers can also join the Hero Club for two annual tune-ups, priority scheduling, repair discounts, and no overtime fees. Financing options are available for qualifying customers through Wells Fargo. Reliant promotes same-day service across much of DFW and offers online booking by phone or through its website.