Darnell Air Conditioning and Heating, Inc. delivers certified 20+ SEER2 variable-speed inverter HVAC systems, heat pumps, duct re-engineering, and emergency cooling dispatch across Orange Park and Clay County.
Actual photographs from Darnell Air Conditioning & Heating, Inc. serving Clay County since 1972.
Florida Certified HVAC Contractor (#CAC1815375) delivering 20+ SEER2 variable-speed inverter technology and heat pumps.
Trane, Carrier, and Lennox variable-speed inverter air conditioners engineered to slash monthly electric bills by 40% while maintaining 50% relative humidity.
All-weather heat pump systems providing seamless dual heating and cooling performance tailored specifically to North Florida mild winters and humid summers.
Mitsubishi and Daikin multi-zone ductless mini-split heat pumps providing independent room-by-room digital climate control for sunrooms and room additions.
R-8 insulated flex duct replacement, Aeroseal internal leak sealing, and CFM airflow balance testing that eliminates hot spots and blower noise.
Heavy-duty commercial rooftop AC package units, chilled water lines, and preventive maintenance agreements for Clay County office parks and retail buildings.
Instant 15-minute emergency technician dispatch for complete AC failure, frozen coils, clogged condensate line water overflow, and compressor failure.
Drag the slider to match your property square footage in North Florida.
Estimated Monthly Electric Bill Savings: $132 / Mo
Drag the slider to compare an old rusted 10-year-old AC condenser unit against a newly engineered variable-speed inverter heat pump system.
AFTER: ENGINEERED INVERTER HVAC
BEFORE: CORRODED RUSTED AC
Real feedback from estate owners and commercial facility managers since 1972.
"Darnell Air Conditioning installed a 20 SEER2 variable-speed heat pump in our Fleming Island home. Our electric bill dropped by $155 a month and humidity stays locked at 48% perfectly!"
"Our AC quit working on a 96° Saturday afternoon in Orange Park. Darnell had a technician at our home in 20 minutes, diagnosed a blown capacitor, and restored cooling immediately."
"Installed multi-zone Mitsubishi ductless mini-splits for our sunroom in Middleburg. Professional technicians, immaculate cleanup, and flawless climate control!"
Traditional single-stage AC units draw maximum electricity every time they turn on and off. Variable-speed inverter systems continuously adjust cooling output in tiny 1% increments, eliminating power surges and reducing energy consumption by up to 40% in North Florida's climate.
Heat pumps reverse refrigeration flow to provide high-efficiency heating during North Florida's cold winter nights without burning expensive electric heating strips, while providing maximum cooling all summer.
Infrared thermal cameras detect micro-temperature differences between cooled air and hot attic spaces, pinpointing exact duct tears and insulation voids without opening up drywall unnecessarily.
Yes. As a Florida Certified HVAC Contractor (#CAC1815375), we process all Clay County and Duval County municipal building permits, Florida Energy Code calculations, and utility rebate processing.
Darnell Air Conditioning and Heating, Inc. was founded in Orange Park, FL in 1972 (54+ years of continuous family service under FL State License #CAC1815375), located at 170-C College Drive, Orange Park, FL 32065.