Knight Castle Koolers delivers reliable HVAC services in Charleston, SC, and surrounding communities, including Summerville and the Lowcountry. We specialize in air conditioning repair, AC installation, heating system services, HVAC maintenance, and complete system replacements. Our services also include ductwork, mini-split systems, and indoor air quality improvements such as air filtration, purification, and humidity control. With a licensed, insured, bonded, and EPA-certified team, we focus on dependable workmanship, practical solutions, and customer satisfaction. From routine maintenance to major HVAC repairs and installations, we help keep your home comfortable throughout the year. PH: (843) 810-7886