Tell us what’s going on — we’ll get back to you in a flash.
The Great Dane difference
The Westside AC Company for the House and the Shop
For more than 20 years Great Dane Heating & Air has kept Jacksonville and Duval County comfortable, and out here that regularly means more than one building on the same address. A family company with upfront pricing, comfort techs who treat your home like their own, and a soft spot for shelter dogs.
The Westside is the run where an address often means two or three buildings, and the calls repeat — the shop somebody wants usable in August, the room over the garage, the unit baking in full afternoon sun.
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, out to the western edge of 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 pressure
Upfront AC Repair Pricing in Westside Jacksonville
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.
AC Replacement & Installation in Westside Jacksonville
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.
AC for the House, the Shop and the Garage on One Westside Lot
The Westside has room, and room changes the questions — what to do about the shop, how far the equipment sits from the house, and what an open lot does to a condenser in July.
78°Set to 78° — nine months a year
The other buildingNot an extension of the house
A detached garage, shop or studio has its own load, its own hours and its own problems, and running the house system out to serve it is expensive in every direction. A ductless head out there is cheaper to install, cheaper to run and better at the job.
The sunNothing shading anything
Open lots mean an outdoor unit that takes full afternoon sun with no tree line to break it. A condenser rejects heat into the air around it, and hotter surrounding air makes that harder. Clearance and shade are both cheap next to what they give back.
The distanceLonger runs, quietly
Equipment set well away from the house means longer line sets and longer duct, and both give up a little of what you paid for along the way. None of that is a fault. All of it is worth getting right when it goes in rather than living with afterwards.
The mixNo single answer out here
A 1950s house can sit two doors from a subdivision built in the last ten years, and the right recommendation for one is wrong for the other. It is why we quote the house in front of us rather than the part of town it stands in.
Westside Service Area
Westside HVAC Service, From Cedar Hills Out to Whitehouse
More land per address than anywhere else we work, and more buildings per address to go with it. This is where the truck actually ends up.
Cedar Hills
Established streets closer in, compact lots, and systems at the age where the real conversation starts.
Normandy
Along the boulevard. A mix of houses and small commercial, often on the same block.
Argyle
Newer subdivisions to the southwest, where the equipment is younger and the questions are about balance.
Marietta
Bigger lots, more outbuildings, and more calls about conditioning something that is not the house.
Out Toward Whitehouse
The western edge, where the land opens right up and the runs get long.
Normandy & 103rd
The commercial corridors through the middle — shops, kitchens and small industrial we cover 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
A Family-Owned AC Company That Gives Back
The Great Dane on the truck is the whole origin story. This company was started by people who are incurable about animals, and part of what it earns has always gone back toward the pet population of Duval County.
In practice that is rescue events, time spent with animals still waiting at the shelter, and a Rescue of the Week shared with everyone following along. It is also why we are a Paw Partner Corporate Sponsor of the Jacksonville Humane Society.
Garage Mini-Splits and AC Repair for Every Building on the Property
A working air conditioner is comfort. Out here the question is often which building we are talking about, because the shop, the garage and the room over it all want answering differently.
Vetted people on your property
Florida state certified — licence CAC036942 — fully insured, and BBB accredited at an A+ rating. The same small crew every time, whichever building they end up working in.
The air in a working space
A garage or workshop is not a living room and should not be treated as one — there is dust, there are fumes, and there is a lot of unconditioned air coming and going. Filtration and the right kind of equipment matter more out there, not less.
One number, before we start
Whether it is the house or the building behind it, you see what failed and the whole figure before anything is touched. Our work is guaranteed — that is the whole point of the name on the truck.
The full price before we start.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.
Can the detached garage be put on the house system?+
It can be done and it is usually the wrong answer. The house system was sized for the house, and a detached building means a long run through unconditioned space to serve a room with completely different needs. A ductless head out there costs less to run, works better, and leaves the house system doing its own job.
The outdoor unit sits in full sun all afternoon.+
Then it is working harder than it needs to. A condenser rejects heat into the air around it, and air that has been baking against a wall in the sun is worse at accepting it. Shade helps, clearance helps more, and neither is expensive next to the efficiency you get back.
The room over the garage is unusable in summer.+
It nearly always is, because it has a hot garage below it, roof on three sides, and a duct run that had to travel to get there. It is the clearest case for its own head in the whole house — and the alternative, making the main system big enough to force the issue, makes the rest of the house worse.
What does it take to condition a workshop?+
Less than most people expect, and it depends almost entirely on what happens in there. A shop with the door up half the day is a different problem from a closed studio. We will ask what you actually do in the space before quoting it, because that answer changes the equipment more than the square footage does.
The unit is a long way from the house. Does that matter?+
A little, and it is worth knowing rather than worrying about. Longer line sets give up a small amount of performance and longer duct runs give up more, so the routing and the insulation deserve proper attention. It is not a reason to move anything; it is a reason to do the install carefully.
Two buildings, two systems — can one crew do both?+
That is most of what we do out here. It is also easier on you, because the same people who sized the house know what the building behind it is being asked to do, and the two decisions are not made by strangers to each other.
Does a garage or shop system need looking at as often?+
More often, usually. A working space has dust a living room does not, and that lands on the filter and then the coil far faster. The equipment is often simpler out there, but the maintenance interval that suits it is shorter, not longer.
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 we will also tell you honestly whether the second system on the property is on the same schedule. Cannot be combined with any other offer, one per household.
There is no shade on the lot at all. Anything to do?+
Clearance first, shade second. Keeping the space around the cabinet genuinely clear does more than most people think, and anything that shades it without restricting airflow helps on top of that. What does not help is boxing it in, which is the usual instinct and the wrong one.
Do you do AC repair on the Westside of Jacksonville?+
Regularly. Cedar Hills, Normandy, Argyle, Marietta and out toward Whitehouse are all 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 talking you out of extending the house system into a building it was never meant to reach. If the cheaper answer is the better one, that is the one you will get.
What should I check before I call for AC repair?+
Three things that cost nothing. Check the breaker for the air handler and the outdoor unit. Look at the filter, because a collapsed one starves the system and imitates a much bigger fault. And clear whatever has grown up against the outdoor unit — on a lot this size something usually has.
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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Gold Maintenance Plan
Two maintenance visits a year, 10% off parts and 20% off air quality products. $199 a year.
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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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Attic Insulation
Blown-in insulation over what is in your attic now, after we check how deep it is.
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Commercial HVAC
Installs, repairs and maintenance that keep Jacksonville businesses comfortable.
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Bard Wall-Mount Units
Service, repair and replacement of Bard and Eubank-style wall-mount units on classrooms, modular offices and shelters.
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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
New Carrier condenser, strapped down
Charging a new system
Air handler and high-efficiency filter
New condenser set on pavers
Attic air handler, ducts reconnected
Tucked into a brick alcove
Two systems, one house
Garage closet swap, inspected
Fresh pad, clean line set
Clearance kept, shrubs trimmed back
Delivery day
The big teal truck
Our smallest biggest fan
Come say hi at the home show
Airflow Is a Mini Split a Good Fit for a Florida Room or Home Addition?
Airflow What a Ductwork Replacement Recommendation Should Include
Repair AC Running but Not Cooling? Why, and What to Check