Expert cooling for the nation's oldest city—historic and modern homes
Schedule ServiceThe nation's oldest city combines historic homes with newer developments, creating unique HVAC challenges throughout the community. Older homes often have retrofitted ductwork and aging systems, while newer communities in World Golf Village and other developments need modern, efficient cooling solutions.
Jax AC Service proudly serves historic downtown St. Augustine, Davis Shores, Anastasia Island, World Golf Village, Vilano Beach, and all surrounding areas. Whether your home was built in the historic district and requires specialized retrofitting or in one of the newer master-planned communities, our experienced technicians have the expertise to keep your home comfortable year-round.

Fast, reliable AC repair service. Same-day appointments available.

Professional AC system installation with expert guidance on efficiency.

Preventative maintenance plans to keep your system running smoothly.

Professional ductwork cleaning for improved air quality and efficiency.

Advanced air purification and humidity control solutions.

24/7 emergency AC repair when you need it most.

Smart thermostat installation and programming.

Heat pump installation, repair, and maintenance.
Jax AC Service offers comprehensive AC and HVAC solutions throughout St. Augustine. Whether you need emergency AC repair, a new AC installation, routine AC maintenance, or specialized services like duct cleaning and indoor air quality improvements, licensed technicians in our network are ready to serve you. We also provide 24/7 emergency AC repair, expert thermostat services, and heat pump services for homeowners throughout the area.
We understand the unique HVAC challenges of historic properties. From retrofitting ductwork to maintaining systems in homes hundreds of years old, we have specialized expertise for St. Augustine's oldest neighborhoods.
Whether you live in a meticulously restored historic home or a modern World Golf Village community, we have the expertise to service, repair, and install systems for any home type.
St. Augustine's coastal location creates unique humidity and salt-air challenges. We understand how to maintain HVAC systems in humid, coastal environments for optimal performance.
Many historic St. Augustine homes have retrofitted or improvised ductwork. We can evaluate, upgrade, or redesign your ducts for better efficiency and comfort.
When your AC fails in the Florida heat, we offer same-day appointments and emergency service to get you cool again quickly.
No surprise charges or pressure tactics. We provide free estimates and clear pricing before starting any work on your AC system.
Absolutely. We specialize in HVAC service for historic properties. Whether you need to retrofit a system, repair aging equipment, or install modern cooling while preserving historic integrity, we have the expertise.
Older homes often lose cool air through poor ductwork and inadequate insulation. We can assess your system, seal leaks, upgrade ductwork, and recommend efficiency improvements tailored to historic properties.
Salt air and humidity accelerate corrosion and mold growth in AC systems. We recommend more frequent coil cleaning, UV air purification, and corrosion-resistant equipment upgrades for coastal homes.
This depends on your system's age, efficiency, and repair history. Modern systems are significantly more efficient. We can provide a free evaluation to help you decide whether repair or replacement makes sense.
St. Augustine's coastal location means elevated humidity year-round. Modern AC systems with proper ductwork, dehumidification upgrades, and smart thermostat control can significantly improve comfort.
Yes. We serve all areas of St. Augustine, from the historic downtown district to Davis Shores, Anastasia Island, and World Golf Village. Call us for same-day service throughout the area.
We also serve Ponte Vedra, Nocatee, and Jacksonville.