(904) 512-0091

Arlington’s Local HVAC Company

Arlington HVAC & AC Repair

Upfront pricing from a crew that has been inside a few hundred of these houses. The local AC company for Arlington, Fort Caroline, Regency and University Park: air conditioning repair and installation, mini splits, duct work and furnace repair, all from one crew.

Limited‑time offer

HVAC Refresh & Tune‑Up

Cannot be combined with any other offer. One per household.

Claim This Offer$99

Get Your Free Estimate

Tell us what’s going on — we’ll get back to you in a flash.

    The Great Dane difference

    The Arlington AC Company That Knows the Layout

    More than 20 years keeping Jacksonville and Duval County comfortable, one honest repair at a time, and a fair share of those on this side of the Mathews Bridge. A family company with upfront pricing, comfort techs who treat your home like their own, and a soft spot for shelter dogs.

    Heating & Cooling Services

    What Comes With an Arlington AC Service Call

    We Know These Ranches

    Arlington is on the route most weeks and the houses repeat — the same slab, the same shallow attic, the same room that was added on later. Most visits start from a shorter list than you would expect.

    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, a great deal of it on this side of the Mathews Bridge. 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.

    • A full diagnosis before any quote
    • The complete price, upfront
    • An honest read on repair versus replace
    Call (904) 512-0091 or book it online ↓

    HVAC Services — Arlington, FL

    From First Call to AC Repair

    Four simple steps — and no surprises at any of them.

    1 Call or Click Tell us what’s going on — phone or the form, your pick.
    2 We Sniff It Out An honest diagnosis of the real problem — not an upsell.
    3 You Approve the Price The full number upfront, before any work starts.
    4 Done Right, Tail Wags Fixed, tested and cleaned up — guaranteed.

    Residential & Commercial HVAC — Arlington, FL

    Heating and Cooling for Arlington’s Ranch Homes

    From emergency AC repair and duct cleaning to brand-new systems and mini splits — one crew across Jacksonville and Duval County.

    Not sure what you need? Call (904) 512-0091 — we’ll sniff it out.

    Heating and Cooling in Arlington, FL

    Don’t Sweat the Dog Days of Summer

    Honest techs, upfront pricing, and cool air your whole pack can agree on.

    AC Replacement & Installation in Jacksonville

    Old AC Out. New Comfort In.

    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.

    Old rusted air conditioner before replacement in Jacksonville
    New energy-efficient AC unit after professional installation
    Before After

    Air Conditioner Repair & Replacement

    What the Post‑War Ranch Boom Left Behind

    Arlington filled in quickly once the Mathews Bridge opened, which means a great deal of it is the same house, built the same way, in the same decade. That decade had its own ideas about ductwork.

    A wall thermostat in a Jacksonville home, set for cooling
    Set to 78° — nine months a year
    The slabDuct you cannot get to

    These houses sit straight on concrete, and where the original duct was run inside that slab there is no practical way to repair it once it has failed. The answer is to abandon it and go overhead instead. Worth knowing before anybody quotes you a system that still has to breathe through it.

    The blockConcrete that holds the day

    Block walls take heat all afternoon and hand it back through the evening, and in this era most went up with nothing on either face to slow that down. The system is less undersized than it is still working long after sundown.

    The rooflineNot much room up there

    A low‑pitch roof leaves a shallow attic, which is exactly where the duct and often the air handler had to go. Less room means tighter bends, harder access and runs that were compromised the day they were fitted. It is the first place we look when one end of the house underperforms.

    The add‑onsCarports and Florida rooms

    A good half of the ranches out here have gained a room since they were built — a carport closed in, a porch glazed over. Those spaces were rarely added to the original system properly, which is why they bake in August and chill in January while the rest of the house is perfectly comfortable.

    Arlington Service Area

    From the Mathews Bridge to Fort Caroline

    Arlington is wide, flat and largely built in one stretch, which makes it one of the more predictable runs we do. This is where the truck actually ends up.

    Fort Caroline

    The eastern end, out toward the memorial and the river. Longer lots and a fair number of houses that have been added to twice.

    Regency

    The commercial heart of it, off Atlantic Boulevard. Plenty of residential behind it and a good deal of shop and office work in front.

    Arlingwood

    The older riverside streets, where the houses are larger and the duct runs longer than the Arlington average.

    University Park

    Around Jacksonville University. A mix of original owners and rentals, which usually means a mix of equipment ages on one street.

    Monument Road

    The north‑south spine. Most of what we run out here turns off it at some point.

    Atlantic Boulevard

    The commercial corridor through the middle — restaurants, shops and offices we cover on the commercial side.

    $99Refresh
    & Tune‑Up

    Limited‑time offer

    HVAC Refresh & Tune‑Up

    A full seasonal check‑over of the system you already have — so small problems stay small.

    Cannot be combined with any other offer. One per household.

    HVAC Repair & Replacement in Jacksonville

    Let’s Figure This Out Together

    No quote needed, no email, no phone number — just tell us what it’s doing and we’ll give you our honest read.

    1How old is the system?

    2What’s it doing? tick all that apply

    3How often has it needed fixing?

    The Great Dane Heating & Air mascot, wrench in hand, standing beside an outdoor AC unit

    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.

    A Great Dane napping beside a Great Dane Heating & Air mailer A Great Dane at the Great Dane Heating & Air van Paw Partner

    Community

    The Dane Is Not Just a Logo

    There is a reason the dog got top billing. Great Dane Heating & Air was put together by people who are hopeless about animals, and from the start the plan was that the company would be worth something to the pet population of Duval County as well as to its customers.

    That means rescue events, hours spent with animals still waiting at the shelter, and a Rescue of the Week going out to everyone who follows us. It is also why we are a Paw Partner Corporate Sponsor of the Jacksonville Humane Society.

    Jacksonville Humane SocietyMeet the Jacksonville Humane Society →

    Arlington Families

    Cool Rooms in a Sixty‑Year‑Old House

    A working air conditioner is comfort. In a block house on a slab, with the duct wherever the builder could fit it, getting every room there takes knowing the house type as well as the equipment.

    • 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, which counts for a lot in a house where the access is tight and most of the work is overhead.

    • What the ducts are carrying

      Duct in a shallow attic collects what a shallow attic has in it, and Florida humidity does the rest. Filtration, purification and humidity control deal with the air itself rather than only its temperature.

    • No surprises on the invoice

      You see what failed and the whole number before anything is touched, and the system gets tested before we leave. Our work is guaranteed — that is the whole point of the name on the truck.

    A toddler standing on a Great Dane’s back to reach the thermostat in a cool, comfortable Jacksonville home
    Free estimate, honest answer. Tell us what your system is doing and we’ll tell you what it actually needs.

    Our work

    Check Out Some of Our Work

    Real installs from around Jacksonville — straight from our techs’ job sites.

    Arlington specials

    Track Down an Arlington Deal

    Helping Arlington save is one more way we give back. Mention a coupon when you call.

    The Great Dane Heating & Air truck

    Reviews

    Barking Good News From Around Arlington

    ★★★★★ 4.9 out of 5 across 74 Google reviews

    Read all 74 reviews on Google →

    FAQ

    Let’s Dig Into the Details

    The questions Jacksonville asks us most — straight answers, no jargon.

    Cold air comes out, but the house never quite gets there.

    In a block house that often means the system is fine and the envelope is not. Concrete walls that absorbed heat all afternoon keep releasing it into the evening, so the equipment is still fighting at nine at night. We measure the temperature split across the coil first — that says within a few minutes whether the machine is underperforming or simply outnumbered.

    One end of the house is always behind the rest.

    With the duct in a shallow attic, the run to that end was fitted around the roofline rather than sized for the distance. Tight bends and crushed sections both cost airflow, and neither is visible from inside the house. Measuring at that register and again at the air handler tells you which one you have.

    The ducts are in the slab. Can they be cleaned or repaired?

    Cleaned sometimes; repaired almost never. Once a run cast into concrete has cracked or taken on water there is no access to it worth having, and the honest answer is usually to abandon it and run new duct overhead through the attic. That is a bigger job than a cleaning and a far smaller one than living with it.

    Can a modern system even work with duct this old?

    Not always at its rating. Equipment has become a great deal better at moving air efficiently, and the duct in these houses was sized for what was normal sixty years ago. A high‑efficiency system on an undersized run gives you the price of the new machine and the airflow of the old duct. We measure the duct before quoting the system.

    Does it have to go back in the attic?

    Not necessarily. Where attic access is genuinely poor, a ductless head serving the problem end of the house avoids the run altogether. It is not the right answer for every layout, but it has solved a lot of Arlington add‑on rooms without anybody dragging duct across a ceiling.

    The carport was closed in years ago. Why does it never keep up?

    Because it was almost certainly never added to the system properly. A converted carport or glazed porch is load the original equipment was never sized for, and it is usually fed by extending the nearest duct rather than given anything of its own. It is the single commonest complaint out here, and it has three or four honest fixes depending on the layout.

    The air handler is in the attic and awkward to reach. Does that matter?

    It matters for what gets done rather than for what goes wrong. Equipment that is difficult to reach tends to be looked at less often, and the things that get skipped — the drain, the coil, the filter — are exactly the things that cause failures. If yours is up there, a scheduled visit is worth more than it would be in a garage.

    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. In a house where the equipment lives in the attic, it is also the one time anybody looks at it properly. Cannot be combined with any other offer, one per household.

    Would insulation help more than new equipment?

    In this housing stock it frequently would. A block wall with nothing on the inside face, and an attic whose insulation has thinned or settled, both make the system run longer for the same result. We will tell you when that is where your money goes furthest, even though it is not a sale for us.

    Do you cover Arlington, or is it extra?

    It is inside the normal service area at the same pricing as anywhere else we go — Fort Caroline, Regency, Arlingwood, University Park and the streets off Monument Road included. 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. With houses this age the expectation is usually that everything must be due, and often it simply is not. If a part is drifting but has not failed, you get told that, with the reading behind it, and the decision stays yours.

    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 — a collapsed one starves the system and imitates a much larger fault. And look at the outdoor unit itself; these lots have had sixty years to grow a hedge somewhere awkward, and airflow around that cabinet matters.

    Everything we do, in your neighborhood.One crew for all of it — not a different company for each job.

    Done Right the First Time

    Honest, upfront pricing and work we stand behind 100% — that’s the Great Dane guarantee.

    The Great Dane Heating & Air van

    Serving the Jacksonville, FL area

    HVAC Service Near You

    Fast, honest HVAC service across Jacksonville, Duval County and the surrounding Northeast Florida communities.

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    Proudly serving Jacksonville & all of Duval County.

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