Sixteen questions only a Jacksonville homeowner would think to ask
How a compressor works is on every HVAC site. What to do about a flooded air handler in San Marco or a plaster bungalow in Springfield is not. The second kind is what this page is for.

Questions that start with an address
Jacksonville is a consolidated city-county of just over a million people, and the air conditioning questions change block by block. A homeowner in a 1926 San Marco house asks about tidal flooding and plaster. A landlord at the Beaches asks about salt and tenants. A family in a 2006 Oceanway two-story asks whether the builder’s system is worth fixing one more time. A couple on a well in Bryceville asks about iron.
The general questions, how a system works, what a thermostat does, why maintenance matters, are answered on hundreds of websites. The ones below are the ones that only come up here, gathered from the calls our dispatchers take from Duval, Nassau and Baker counties. Every answer assumes the truck is coming from our headquarters in Palm Coast, about 74 minutes away, because that’s the truth and it shapes some of the advice.
If yours isn’t on the list, the number at the top of the page works around the clock, and there’s no charge for asking.
Duval, Nassau and Baker specifics
Our San Marco house took river water during Irma. Should the new air handler go higher than the old one?
Yes, and the condenser too. Riverfront lots in San Marco, Riverside and Ortega sit in AE flood zones, and Irma, Matthew and Nicole each put water where equipment used to be. We set condensers on stands above the base flood elevation and, where the house allows, move the air handler out of a ground-level closet. It’s cheap at replacement time and painful afterward.
Riverside's historic district has rules about what's visible from the street. Can a condenser go on the side of a 1920s bungalow?
Usually yes, with placement that keeps it out of the primary street view and screened where the guidelines ask. We’ll give you the unit dimensions and a placement sketch for whatever review the district requires, and we’ve put enough equipment beside Avondale bungalows to know what gets approved.
Our Springfield house has no ductwork at all. Is central air even possible without tearing out plaster?
Often, with a high-velocity small-duct system or a carefully routed conventional system using closets and chases. Where it isn’t, a multi-zone ductless setup cools the whole house without a single duct. We’ll tell you which after walking the attic and crawlspace, not from the driveway.
We rent out a condo in Jacksonville Beach. Who do you call when a tenant reports no cooling, me or them?
Whoever you tell us to. Most owners set it up so the tenant can call directly, the technician coordinates access with the tenant, and the invoice and the explanation go to the owner. We keep that on file so the 2 a.m. call doesn’t require a decision from you.
We're in Bryceville on a well. Does iron in the water matter to the air conditioner at all?
Not to the refrigerant side, but to anything that touches water. Condensate drains that share a line with a softener discharge, humidifiers and heat pump water heaters all see the iron and sulfur in Floridan Aquifer well water. We flush and treat the condensate trap on well-water homes every visit for that reason.
What does a 74-minute drive from Palm Coast mean for a routine maintenance appointment?
A time window rather than an exact minute, and a schedule grouped by neighborhood. Maintenance visits in Jacksonville are booked in sector days, so your Mandarin tune-up lands on a day the technician is already working Mandarin. You’ll get a call when the truck is on the way.
Lightning hit a tree in our Mandarin yard and now the AC won't start. Is that an insurance claim?
It may be. We’ll inspect the control board, contactor, capacitor and compressor windings, photograph the damage and write up the cause of failure. That document plus the model and serial numbers is what most adjusters ask for. Putting a dedicated surge protector on the disconnect is the cheap way to avoid round two.
Our Arlington ranch still has the original 1960s attic ducts. Can they stay when we replace the unit?
Only if they test tight enough, and sixty-year-old ductboard and flex in a Sandalwood attic rarely do. We measure leakage before quoting. Sometimes sealing and a few new runs are enough; sometimes the honest answer is new ducts, because a high-efficiency system blowing into leaky attic duct is paying for efficiency it never delivers.
Is JEA's $50 smart thermostat rebate worth the paperwork?
Yes, because there’s almost no paperwork. An ENERGY STAR thermostat installed with a new system or on a maintenance visit qualifies, and we’ll point you to the form. The humidity-aware scheduling is worth more than the fifty dollars in a climate with 72-degree dew points.
Does the pollen that coats everything in March hurt the system, or just the filter?
Both. From February into May the oak and pine pollen clogs the filter first and then the outdoor coil, which forces the compressor to work harder against a coil that can’t shed heat. That’s why Jacksonville agreements put the first visit before April and why a hose rinse of the condenser in March is worth doing.
Our Fernandina Beach condenser is rusting after four years. Is that normal that close to the water?
Unfortunately, yes. Amelia Island, Mayport and the Beaches sit in direct salt spray, and an uncoated coil or cabinet can corrode in a fraction of its inland lifespan. The fixes are a coated coil at replacement, a monthly fresh-water rinse, placement away from the prevailing wind and a cover during long absences.
We leave the Ortega house empty from June to August. What should the system do while we're gone?
Run, at about 78 to 80 degrees, with a humidity-sensing thermostat if you have one. Shutting it off in a Jacksonville summer invites mold on every soft surface by July. Have someone check the drain line monthly, or put the house on an agreement so we do.
After Nicole, the power was out for two days. Does a long outage hurt the equipment?
The outage itself doesn’t; the restart can. When power returns to a whole neighborhood at once, the surge and voltage swing can take out capacitors and boards. If the system doesn’t come back cleanly, switch it off at the thermostat, wait ten minutes, then try once. If it still fails, call rather than repeat the attempt.
We're buying a manufactured home near Callahan. Will you work on a package unit?
Yes. Package units on a pad beside the home are the standard setup across Nassau and Baker, and we repair, maintain and replace them. The things to check at purchase are the age, the condition of the crossover duct under the home and whether the pad has settled.
My Murray Hill neighbor says a mini-split is the only option for a small 1920s house. True?
It’s one option, not the only one. For a compact Murray Hill home with no attic space, a ductless system is often the cleanest answer. But many of those houses can carry a small-duct system through closets, and some already have a usable chase. Which one fits depends on the house, so we look before we recommend.
Is there a reason to keep gas heat in a Jacksonville house if TECO Peoples Gas already runs to it?
Sometimes. Where a gas furnace is already in place and the home prefers that kind of heat, pairing it with a high-efficiency air conditioner makes sense. For most Duval homes with fourteen freeze nights a year, a heat pump covers heating comfortably and simplifies the system. We’ll run both numbers.
Still have one for the dispatcher?
Call and ask. The dispatcher has heard most of them from this city already.