Do you need dependable heating and cooling services in New Albany, IN And Surrounding Areas? Allegiance Heating & Air, LLC is a reliable HVAC contractor with comprehensive air conditioning and furnace service and years of experience in both commercial and residential HVAC systems. When winter snows hit or July high temperatures soar into the 90s, you don’t want to have to worry about spotty or unreliable heating or cooling. When you book Allegiance Heating & Air, LLC for your heating and cooling installation, cooling repair, or maintenance, you know that you can count on the job being done right the first time. We use the best parts and tools, plus conduct ongoing professional training so that we’re able to work on even the newest models of HVAC Equipment.