Service Mule Heat & Air

Service Mule Heat & Air operates as a residential HVAC specialist serving Dallas and the surrounding North Texas region, including Grayson County communities. With a perfect 5-star rating across 17 verified customer reviews, the company has built its reputation on responsive service and honest diagnostics. Founded by Justin, the company employs a small team including Paul and Tiffany who handle everything from routine maintenance calls to complete system replacements. Customers consistently praise the team's punctuality and transparent pricing, noting that work orders never seem to balloon beyond initial estimates.

What distinguishes Service Mule from larger competitors is their commitment to showing up when promised. Multiple reviewers highlight the company's willingness to respond on short notice, with one customer recalling a Sunday evening call that brought Justin to their doorstep first thing Monday morning. The team specializes in diagnosing hard-to-find problems, particularly with furnaces and aging cooling systems that other contractors had written off. Their workflow emphasizes completing jobs in a single visit whenever parts availability allows, avoiding the frustration of repeated service trips.

Customers regularly share specific scenarios that show why Service Mule earns consistent five-star ratings. When William Gandee's furnace failed on a late Sunday, Justin arrived by Monday morning and had the system operational before noon at a reasonable cost. For Glenn Vargas, the company managed a complete outdoor and indoor unit replacement, beginning and finishing the install in consecutive days despite the project's scope. Rocky simply needed heat restored before winter settled in, and Service Mule delivered. Dennis S. appreciated same-day Saturday service when his AC stopped cooling mid-summer.