Darnell Air Conditioning and Heating, Inc. is your local HVAC resource for Orange Park, Florida, & the surrounding areas of Clay County. Since 1972, we’ve been a reliable source for customers who need all types of air conditioning or heating services. From installing new equipment to repairs & upgrades of currently installed units, the contractors at Darnell Air Conditioning & Heating, Inc. know exactly what to do to ensure that your unit is durable & energy-efficient. We are family-owned & operated. When you hear our name, you’ll know that you’re doing business with fair, honest, and friendly contractors who will give you superior service at prices you can afford.