Upfront pricing from a crew that looks at what is around the unit, not only inside it. The local AC company for Julington Creek and the Plantation: air conditioning repair and installation, duct work, ductless mini splits and furnace repair, all from one crew.
Tell us what’s going on — we’ll get back to you in a flash.
The Great Dane difference
Your Julington Creek AC Company, Inside and Out
For more than 20 years Great Dane Heating & Air has kept Jacksonville and the surrounding communities comfortable, including a good many where the landscaping is doing quiet damage to the equipment. A family company with upfront pricing, comfort techs who treat your home like their own, and a soft spot for shelter dogs.
Julington Creek is a consistent run and the failures repeat — the same scaled fins, the same hedge grown flush against a unit that had two feet of clearance when it went in.
Licensed & Insured
Florida state certified contractor CAC036942, fully insured, and accredited with the Better Business Bureau at an A+ rating. Every tech who pulls into your driveway works under that license.
20+ Years in Service
Two decades across Duval County and south of the creek with it. The people who answer your call are the same people who show up at your door.
Every Job Gives Back
We’re a proud supporter of the Jacksonville Humane Society. Part of what you spend keeping your home comfortable helps shelter dogs here in Jacksonville find one of their own.
No cost, no pressure
Get a Free Estimate on Your System
Tell us what it’s doing. We find the real problem, give you the whole number before any work starts, and tell you straight if a repair is not worth your money.
When your air conditioner is past its prime, more AC repair isn’t always the answer. A new, energy-efficient AC installation can end the breakdown cycle, cool your home evenly, and take a real bite out of summer power bills.
Our Jacksonville team gives you the honest math on AC replacement vs. repair, sizes the new system correctly for Florida heat, and leaves the job site cleaner than we found it — just like this install.
What Twenty Years of Irrigation Does to a Condenser
Julington Creek was planted as it was built, and both have had decades to mature. The outdoor half of your system has been standing in the middle of that the entire time.
78°Set to 78° — nine months a year
The sprayWater that leaves something behind
Reclaimed and well water carry dissolved minerals, and a sprinkler head that catches the outdoor unit leaves those on the coil every time it runs. The water evaporates; the deposit does not. Over years it builds a layer on the exact surface whose job is to shed heat.
The growthClearance that closed in
A unit set with sensible clearance in 1998 is frequently boxed in by now, because hedges close the gap a few inches a season and nobody registers it. The machine breathes through its sides. Anything pressed against them is throttling it quietly and permanently.
The pollenMature landscaping, mature load
Established planting produces far more pollen than the bare lots these houses started on. It loads filters faster than the schedule assumes and it combines with irrigation mineral outside, which is worse than either on its own.
The timingBuilt together, ageing together
A community that went in over a handful of years reaches the same decisions at roughly the same time. Useful to know, and not a reason to replace on somebody else’s schedule — only a reason to find out where yours actually stands.
Julington Creek Service Area
From Race Track Road to the Creek
A community that went in over about twenty years and has had another twenty to grow around itself. This is where the truck actually ends up.
The Plantation
The bulk of it. Consistent housing, consistent equipment, and consistently overgrown clearance around the outdoor units.
Race Track Road
The spine. Nearly everything we run out here turns off it at some point.
The Golf Side
Where irrigation runs hardest and longest, and where we look at the sprinkler heads before anything else.
Flora Branch & Durbin
The newer end, with younger landscaping and younger equipment to match.
Along State Road 13
The river side, older and more varied than the planned streets behind it.
The Town Center
Shops, offices and restaurants — work we take on the commercial side.
$99Refresh & Tune‑Up
Limited‑time offer
$99HVAC Refresh & Tune‑Up
A full seasonal check‑over of the system you already have — so small problems stay small.
Straight talk: If somebody tells you your system is “illegal now” because of the refrigerant rules — it isn’t. R‑410A systems can still be serviced. New equipment moved to R‑454B in 2025 and R‑410A production is stepping down, so topping off an older system gets pricier every year. That’s a reason to plan, not a reason to panic‑buy tonight.
Paw Partner
Community
The Dane Earned Top Billing
Great Dane Heating & Air is named after the dog on purpose. It was started by people who are entirely unserious about resisting animals, and the company was meant from the beginning to put something back into the pet population of Duval County.
That means rescue events, hours with the animals still waiting at the shelter, and a Rescue of the Week put in front of everyone who follows us. It is also why we are a Paw Partner Corporate Sponsor of the Jacksonville Humane Society.
A working air conditioner is comfort. Out here a surprising amount of whether you keep it comes down to what the irrigation and the shrubs have been doing to the outdoor unit for the last decade.
Vetted people in your home
Florida state certified — licence CAC036942 — fully insured, and BBB accredited at an A+ rating. The same small crew every time, not a rotating list of subcontractors.
What the system moves indoors
Heavy landscaping means heavy pollen, and Florida humidity handles the rest. Filtration, purification and humidity control deal with the air itself rather than only what temperature it happens to be.
The cheap fix first
If moving a sprinkler head and cutting back a hedge buys you years, that is what you will be told, and it is not a service call we charge much for. Our work is guaranteed — that is the whole point of the name on the truck.
Free estimate, honest answer.Tell us what your system is doing and we’ll tell you what it actually needs.
Paul came out and replaced our blower motor and saved the day. He fielded my call on Sunday evening, then did the service Monday afternoon. Friendly, efficient, and professional.
After years of feeling vulnerable to dishonest HVAC companies, a neighbor put me in touch. He quickly earned my trust — quick to return calls, reasonable rates, and he’s never tried to sell me things I don’t need.
We’ve used him for everything from small tweaks to replacing our entire unit. Quick, reliable, honest, and clean — and he beat the prices of every competitor. Yes, we priced out seven.
Fast and efficient, unbelievably affordable pricing. He quickly figures out the problem and explains it in a way anyone can understand. You automatically feel like you can trust him.
Our A/C went down and the team showed up Monday morning first thing. We had cool air flowing in no time. The crew was fast, clean, and finished under time.
Mike and the team were very professional, friendly, and knowledgeable. The price was not unreasonable. So happy we found this company — we know we will be taken care of in the years to come.
Just had Great Dane install a new A/C in my home. Mike came to my home, saw what I had, and I told him what I wanted installed. There was absolutely no sales pressure.
Mike came out and gave an estimate with no fluff, which is what I like. He was honest and professional. The team that installed the unit worked well together and the work performed was stellar!
The questions Jacksonville asks us most — straight answers, no jargon.
There is orange staining all over the outdoor unit.+
That is almost always irrigation water with iron in it. The staining itself is cosmetic; what matters is the mineral scale left on the coil fins underneath, because that behaves like a blanket on the surface that is supposed to be shedding heat. It is worth looking at properly rather than washing the cabinet and calling it done.
The system is running longer than it used to and nothing has changed.+
Something outside has usually changed even when nothing inside has. A coil that has been picking up mineral deposit from sprinkler spray, or a hedge that has closed in on the clearance, both make the system work longer for the same result. Both are cheap to correct and neither shows on a thermostat.
How much clearance does the outdoor unit actually need?+
More than most landscaping leaves it. The unit pulls air through the sides and throws it out of the top, so anything packed against it is restricting the machine. Plantings that were a sensible distance away fifteen years ago are frequently touching the cabinet now, and nobody notices because it happened a season at a time.
Can the unit be moved away from the sprinklers?+
Often, and where it cannot be moved it can usually be shielded or the head can be re‑aimed. Relocating equipment is a real job and we will price it honestly, but in a lot of cases the fix is on the irrigation side and costs a fraction of what people expect to hear.
The whole street is replacing systems. Should I?+
Only if yours says so. A community built across a few years does tend to reach the same point together, but that is a reason to find out where yours actually is rather than to follow the neighbours. We will measure and tell you plainly if it has years left.
Is there equipment that stands up to this better?+
Coil coatings help with mineral deposit for the same reason they help with salt, and they are worth asking about when a system is being specified for a house where the irrigation cannot be moved. We will talk through what makes sense against where your unit actually sits.
Can I rinse the mineral off myself?+
Gentle fresh water through the coil with the power off does help, and it is better done regularly than heroically. What it will not do is remove scale that has already bonded to the fins, and a pressure washer will fold the fins flat and cost you more than the deposit was. That part is worth leaving to a service visit.
What is the $99 HVAC Refresh & Tune‑Up?+
A full seasonal check‑over of the system you already have — measurements taken, the parts that genuinely foul cleaned, and a straight answer about what needs attention and what does not. Out here the coil clean and the clearance check are the parts that pay for it. Cannot be combined with any other offer, one per household.
The pollen out here is relentless. Does that reach the system?+
It reaches the filter first and the indoor coil after that, and heavy mature landscaping produces a great deal more of it than a new subdivision does. Filtration handles the indoor side; the outdoor coil wants looking at for the same reason, because pollen and irrigation mineral together are worse than either alone.
Do you come south of the creek?+
Routinely. Julington Creek, the Plantation and the streets either side of Race Track Road are inside the normal service area at the same pricing as anywhere else we go. Great Dane is licensed in Florida as CAC036942, which you are welcome to look up before you let anybody into the house.
Will you tell me if I do not need the work?+
Yes, and out here that often means telling you the answer is a sprinkler head rather than a system. It is a smaller job than the one you were braced for and it is still the right one.
Anything worth checking before I call?+
Three things that cost nothing. Check the breaker for the air handler and for the outdoor unit. Look at the filter, because a collapsed one starves the system and imitates a much bigger fault. And walk out to the outdoor unit — if a sprinkler is hitting it, or a hedge is touching it, tell us on the phone.
Everything we do, in your neighborhood.One crew for all of it — not a different company for each job.
AC Repair
Fast, honest fixes when the cool cuts out. We diagnose it right and quote it upfront — before the work starts.
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AC Replacement & Installation
Right-sized new systems with honest quotes. We help you pick what actually fits your home and budget.
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Emergency AC Repair
Broke down in the Florida heat? Call and we’ll tell you what it is likely to be, and whether it can safely wait until morning.
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Heating Repair
Warm and ready for the cold snaps. Furnaces, heat strips and everything in between.
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HVAC Maintenance
Seasonal tune-ups that prevent summer breakdowns and keep your energy bills in check.
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Heat Pump Services
Efficient heating and cooling in one system — perfect for Florida weather.
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Ductless Mini-Splits
Cool the rooms your ducts can’t reach — garages, additions, sunrooms and more.
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Air Duct Cleaning
Cleaner air and better airflow from every vent in the house.
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Indoor Air Quality
Purifiers, filtration and humidity control so your family breathes easier.
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Commercial HVAC
Installs, repairs and maintenance that keep Jacksonville businesses comfortable.
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Commercial AC Repair
When the cooling quits mid-shift, we find the real fault and give you the number before any work starts.
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Commercial AC System Replacement
Right-sized equipment for your space, quoted upfront so there are no surprises on the invoice.
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Commercial Preventative HVAC Maintenance
Scheduled tune-ups that catch small faults early — before they turn into a closed sign.
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Commercial Indoor Air Quality
Filtration and humidity control for offices, shops, salons and waiting rooms.
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Commercial Air Duct Cleaning
Cleaner air and better airflow through every vent in the building.
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Paw Partner
Meet the Jacksonville Humane Society →
Mini-split install, done right
Wiring up a new system
High-efficiency system on a fresh pad
Twin-system install
Bryant condenser on a fresh pad
Condenser replacement
New air handler, tucked in clean
Delivery day
The big teal truck
Our smallest biggest fan
Come say hi at the home show
Airflow Why Your AC Freezes Up in a Florida Summer
Repair How to Reset Your AC After a Power Outage
Humidity Why Your House Feels Sticky at 74 Degrees