St. Johns County service area
HVAC service for St. Johns County homes, old and new
From brand-new master-planned homes to St. Augustine's oldest streets, with repairs, replacements, fresh air ventilation and humidity control across the county.
Quick answer
Who services air conditioning in St. Johns County, FL?
Preston Reeves Heating & Air services and installs AC, heat pumps and ventilation across St. Johns County, including Ponte Vedra Beach, Nocatee and St. Augustine. Call (904) 447-0914 any hour and a dispatcher books the next open slot.
A county that nearly tripled in 25 years
St. Johns County reached an estimated 346,328 residents in July 2025, up from 123,135 in 2000. Much of that growth landed in master-planned communities: in 2025 SilverLeaf sold 1,002 homes, RiverTown 502 and Nocatee 417 even as it nears build-out. For us that means a large share of tight, efficient houses whose first systems are now reaching the age where repairs start, and where humidity and fresh air matter as much as tonnage.
On the ground
Two very different kinds of house
Most calls in the north of the county come from homes built in the last twenty years. They're tight, often two stories, and frequently served by one system trying to hold both floors. Zoning, smart thermostats and a ventilation check solve more comfort complaints here than a bigger unit would.
St. Augustine is the opposite end of the scale, with historic districts full of older houses where ducts were added late or never fit at all. There the work leans toward ductless heads, careful line set routing and condensers placed out of sight from the street.
Most called for
What St. Johns County homes need from us most
HVAC Maintenance Plans
Spring and fall visits for newer systems so the first big repair stays small.
Learn moreFresh Air Ventilation Installation
Tight newer houses that need controlled fresh air without the humidity.
Learn moreWhole House Dehumidifier Installation
Efficient homes that cool fast and leave the air damp.
Learn moreDuctless Mini Split Installation
St. Augustine's older homes where ductwork was never practical.
Learn moreNearby
Pages for St. Johns County communities
Ponte Vedra Beach, Nocatee and St. Augustine each have their own page, along with the neighboring counties.
FAQ
St. Johns County questions
Do you serve both Ponte Vedra and St. Augustine?
Yes, along with Nocatee, Fruit Cove, Julington Creek and the communities in between, all booked from the same schedule.
My St. Johns County home is only a few years old. Does it need maintenance?
Yes. Newer systems run long hours here, and drain lines and filters clog on the same schedule regardless of age. A yearly visit keeps the first repair small.
Is fresh air ventilation worth it in a new St. Johns County home?
Often, because tight houses trap moisture and odors. We check humidity and airflow first and only recommend it when the house needs it.
Ponte Vedra to St. Augustine, one call
Call any hour. We'll book the next open technician for your address in St. Johns County.
Call and find us
One number, answered around the clock
- Phone
- (904) 447-0914
- Hours
- Open 24 hours, 7 days a week
- Service office
- 9532 Sunbeam Center Dr, Jacksonville, FL 32257
- Head office
- 28473 W 1st St, Hilliard, FL 32046
9532 Sunbeam Center Dr, Jacksonville, FL 32257