HVAC Services in Largo, FL
Pinellas County's Trusted HVAC Contractor
Largo's high concentration of 1960s and 1970s concrete block homes means many properties still rely on original duct systems that have developed leaks over decades, making duct inspection a critical part of any AC service call in this city.
Killian's Air Conditioning has served Largo and the surrounding Pinellas County communities for over 40 years. As a family-owned business, we treat every home like our own — providing honest assessments, flat-rate pricing with no hidden fees, and workmanship backed by our satisfaction guarantee.
Whether you need a routine tune-up, emergency repair, or a complete system replacement, our licensed technicians bring the tools, training, and parts to get the job done right the first time. We serve every neighborhood in Largo with same-day availability and 24/7 emergency service.
Our Services in Largo
AC Repair
Fast diagnosis and repair for all AC brands and models.
AC Installation
Expert sizing and installation of high-efficiency systems.
AC Maintenance
Preventive tune-ups to extend system life and cut energy costs.
Heat Pump Repair
Repair and diagnostics for heat pump systems year-round.
Heat Pump Installation
Energy-efficient heat pump installation with expert system sizing.
Heating Installation
Furnace and heating system installation for Florida winters.
Emergency AC
24/7 emergency AC repair when you need it most.
Ductless AC
Mini-split ductless systems for flexible, zone-based cooling.
Ductwork
Duct installation, sealing, and repair for optimal airflow.
Neighborhoods We Serve in Largo
Ready to Feel the Difference?
Schedule your service today. Life's a Breeze with Killian's Air.