A+ Derr Heating & Cooling

A+ Derr Heating & Cooling is a fourth-generation, family-owned HVAC and home-services company serving Kentuckiana for over 50 years that provides 24/7 heating and cooling repairs, installations, maintenance, indoor air-quality services, plumbing, electrical work, and whole-home generator sales and service; A+ Derr emphasizes licensed and background-checked technicians, next-day installs, financing options, a 100% satisfaction guarantee, community involvement, and multiple local offices to support residential and light-commercial customers across Louisville, Evansville, and the surrounding region.