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AC System Replacement on Merritt Island, FL

Replacing a whole HVAC system is a real decision, and you should not have to make it under pressure. We are Wes and Rachel, a family-owned team, and we know what the lagoon does to island equipment. We will drive out, size the job properly, and hand you a free written estimate before you commit to anything. Take your time.

📞 Call 321-599-6220 Get a Free Estimate
Free Written Estimate Family-Owned Coastal-Coated Coil Options Right-Sized with Manual J NATE Certified Licensed CAC1823291

Reviewed by Wes, Owner and Licensed HVAC Contractor at Florida Air Heating & Cooling. Florida license CAC1823291, NATE-certified.

When It's Time to Replace in Merritt Island

Merritt Island sits between the Indian River and the Banana River, and that geography sets the clock on your equipment differently than anywhere inland. Here is what we actually see across the island when a system is done being repaired and it is time to plan a replacement.

Much of the island was built out for Kennedy Space Center workers in the 1960s and 1970s, solid concrete block on slab, and a good share of those systems are simply at the end of the road now. Even a unit that has been replaced once or twice since then is aging. If yours still runs on R-22 refrigerant, that is a clear signal. R-22 has not been produced since 2020, the price to recharge a leaking R-22 system keeps climbing, and it is money spent on equipment that is near the finish line anyway. At that point a replacement almost always makes more sense than another recharge.

The salt air is the other clock that runs faster here. The island is wrapped in a brackish lagoon system, and the Sykes Creek channel funnels salt air straight through the middle of it. In canal neighborhoods like Catalina Isles and Diana Shores, and along the Banana River frontage in Surfside Estates and Holiday Cove, we see chloride pit the coil fins on uncoated condensers within three to five years, faster than comparable units in Palm Bay or Melbourne. Once that corrosion is advanced, cooling capacity falls off and a coastal-coated replacement is the honest fix rather than chasing a fading coil.

The 1960s and 1970s CBS ranches carry a second issue. A lot of them were built for a 2 or 2.5 ton system and then had an oversized unit dropped in during a later replacement with no load calculation, so they short-cycle and never pull the lagoon humidity out. When one of these reaches replacement age, we plan the whole job, the right tonnage, the return air, the coil coating, and often blown-in insulation to fix R-values that have settled below where they should be, so the new system is not fighting the same load the old one lost to. Knowing these specific island homes is the difference between a swap and a real replacement.

What's Included in Your Merritt Island System Replacement

A replacement is more than dropping in a new box. Here is exactly what a Florida Air whole-system replacement covers, spelled out so there are no surprises.

  • Right-sized equipment via a load calculation. We run a Manual J load calc on your actual home instead of matching whatever was there before, which matters on an island full of ranches that were overloaded with too much tonnage years ago.
  • Coastal-coated coil options for lagoon exposure. For canal and waterfront homes near the Indian River, Banana River, or Sykes Creek, we spec an epoxy or polymer-coated coil and stainless pad fasteners to stand up to the chloride in the air.
  • Matched indoor coil and air handler. The outdoor unit, indoor coil, and air handler are matched as a set so the system runs at its rated efficiency, not a mismatched pairing that never performs.
  • New or flushed line set and new thermostat. We install a new line set, or fully flush and pressure-test a sound one, and set up a new thermostat matched to the equipment before we leave.
  • Permit and Brevard County inspection. We pull the county permit and schedule the inspection so your install is documented and code-compliant.
  • Safe haul-away of the old system. We remove and responsibly dispose of your old equipment and recover the refrigerant. Nothing gets left in your yard.
  • Manufacturer warranty registration. We register the manufacturer warranty in your name so the coverage is actually active, not something you find out was never filed.
  • Install brands you can choose from. ComfortMaker is our primary install brand, with RUUD as a second option and Lennox available on premium upgrades. We walk you through the trade-offs for your home.
Replacement service across Merritt Island, north and south:
32953 32952

Repair or Replace? What We Tell Merritt Island Homeowners

We are not going to talk you into a new system you do not need. The rough rule we actually use is simple: look at the age of the equipment and the cost of the repair. If your system is past about 12 years old and the repair runs close to half the cost of a new one, replacement usually wins, because you are spending real money on equipment that still has aging parts everywhere else. If it is younger and the fix is small, we tell you to repair it and move on.

On this island there are two extra flags we watch. One is R-22 refrigerant. If your system still uses R-22 it predates 2010, that refrigerant is no longer made, and recharging a leak is throwing good money at old equipment. The other is coil corrosion. A condenser near the water can lose real capacity to chloride-pitted fins long before the compressor quits, so a repair on a badly corroded unit is often just a stay of execution. When we see either one, we are honest that a replacement is usually the smarter spend, and we show you why rather than just asserting it.

If you already have a quote from someone else and it does not sit right, get a second opinion before you sign. We do that for free, and we would rather tell you your system has good years left than sell you something you do not need. You can read more about how we think through it in our repair vs replace guide, or just request a free second opinion.

What Goes Into Your Price

Every Merritt Island home is a little different, so the honest answer to "what does it cost" is "it depends on a few things." Here is what actually moves the number, so you know what you are paying for.

System size and tonnage

The Manual J load calculation tells us the right tonnage for your home. A waterfront home near Dragon Point needs more capacity than a 1,400 square foot CBS ranch in Merritt Ridge, and size is one of the biggest drivers of cost. We size it right rather than overselling tonnage you will pay to run, which matters here because so many island homes are already carrying too much of it.

Coastal-coated coil for lagoon exposure

If your condenser sits near the Indian River, the Banana River, Sykes Creek, or a connecting canal, a coastal-coated coil and stainless pad fasteners resist the chloride pitting that eats uncoated fins in a few years. It adds to the cost, but on a canal or waterfront lot it protects the whole investment, and we will tell you honestly whether your location warrants it.

Return-air and duct corrections

Many 1960s CBS homes here put the air handler in a garage closet with no dedicated return plenum, so it pulls air through door gaps and starves for airflow. If yours needs a proper return or duct improvements to let the new system breathe, that is factored in, because a right-sized unit on starved ductwork never performs the way it should.

Insulation and efficiency choices

Older KSC-era homes often have settled, degraded batt insulation that drops the ceiling to R-7 or lower, and a higher-efficiency SEER2 system costs more up front and less to run every summer. We lay out the blown-in insulation and efficiency options for your home and budget rather than steering you to the priciest tier.

A new system does not have to be paid all at once. We offer financing through our lending partners so you can spread the cost over time. Ask us about the current options when you call, or see our financing options.

For real price ranges by system type, see our cost guide. And before you buy, check whether your new system qualifies for an FPL rebate of up to $550 on high-efficiency equipment.

See the AC Replacement Cost Guide Check FPL Rebates (Up to $550)

Why Florida Air for Your Merritt Island Replacement

Anyone can install a box. Here is what actually separates a replacement with Florida Air from one with a company that does not know this island.

We Know What Salt Air Does Here

We have made the drive to Merritt Island and seen firsthand what the lagoon does to equipment. From the Sykes Creek canal roads to the Banana River frontage, we know which lots need a coastal-coated coil, stainless fasteners, and a semi-annual coil rinse, and which ones do not. That salt-air judgment is not something a company from another county figures out on your dime.

We Know These Specific Homes

Space-boom CBS ranches on slab, garage-closet air handlers with no dedicated return, original ductwork sized for a 2-ton system, degraded ceiling insulation from decades of island heat. We have worked these housing types and we plan the replacement around what your particular home actually needs, not a one-size template.

Honest Written Estimates

You get a clear written estimate before any work starts, with the sizing, the coil spec, and the scope laid out. We are a family-owned team headquartered in Palm Bay, licensed under CAC1823291, our techs are NATE-certified, and we live in the same Brevard summers you do. Our reputation is built on straight answers, not a hard sell.

Merritt Island AC Replacement FAQs

Real questions from Merritt Island homeowners planning a new system, answered straight.

We look at three things with you: the age of the equipment, what a repair costs against the value of the system, and whether the failure is a sign of more to come. A rough rule we use is that if the system is past about 12 years old and the repair runs close to half the cost of a new one, replacement usually makes more sense. On this island there is a second flag we watch for, which is coil corrosion. A condenser near the Indian River, the Banana River, or a Sykes Creek canal can lose real capacity to pitted, chloride-eaten fins long before the compressor itself quits, and once that corrosion is advanced a recharge or a coil swap is money spent on a unit that is already fading. R-22 refrigerant is the other tell. If your system still runs R-22 it was built before 2010, that refrigerant is no longer produced, and a recharge gets expensive fast. We give you both numbers and the honest reasoning, then you decide. No pressure.
This is one of the most common complaints we hear on the island, and it usually comes down to two things working together. First, a lot of the 1960s and 1970s CBS ranches here were built for a 2 or 2.5 ton system and then got an oversized unit dropped in during a 1990s or 2000s replacement without a Manual J calculation. An oversized system cools the air fast, satisfies the thermostat, and shuts off before it has run long enough to pull the moisture out, so the temperature is right but the air still feels damp. Second, the concrete block walls soak up heat all day and release it into the evening, which keeps the load high after sunset. When we replace one of these, we right-size the system so it runs longer, gentler cycles that actually dehumidify, and we look at whether the return air is starving the unit. The fix is proper sizing, not more tonnage.
If your condenser sits within a couple of streets of the Indian River, the Banana River, Sykes Creek, or any canal that connects to them, the honest answer is usually yes. The island sits inside a brackish lagoon system with water on three sides, and the chloride in that air pits uncoated coil fins from the inside out. In neighborhoods like Catalina Isles and Diana Shores, where the Sykes Creek channel funnels salt air through the middle of the island, we see uncoated condensers show corrosion within three to five years. A coastal-coated coil, aluminum fin over copper tube with an epoxy or polymer coating, resists that, and stainless fasteners on the pad hold up where plain steel rusts out. It adds to the cost, but on a waterfront or canal lot it protects the whole investment. On a dry lot further inland it may not be worth it, and we will tell you either way.
Yes. Every system replacement we do on Merritt Island is pulled under a Brevard County permit and passes a county inspection when we are done. That is not an extra we upsell, it is how the work is supposed to be done and it protects you. A permitted install means the equipment, the electrical, and the condensate handling all get checked by the county, and it keeps your manufacturer warranty and your homeowner's insurance clean. We take care of the paperwork, schedule the inspection, and register the manufacturer warranty in your name so the coverage is actually active.
The only honest answer is that it depends on your home, and we figure it out with a Manual J load calculation rather than guessing off square footage or matching whatever was there before. A 1,400 square foot CBS ranch in Merritt Ridge with settled attic insulation and original ductwork has a very different load than a larger waterfront home out near Dragon Point. We measure the space, factor in your insulation, windows, sun exposure, and duct condition, and size the system to match. That matters more here than most places, because so many island homes were originally built for a 2 or 2.5 ton system and later overloaded with too much tonnage. A right-sized unit runs longer, quieter cycles, pulls out more of that lagoon humidity, and costs less to run than one that is oversized and short-cycling.
Our primary install brand is ComfortMaker, and we install RUUD as a second option, with Lennox available on premium upgrades. We will walk you through the trade-offs on efficiency, warranty, and price for your home and budget rather than pushing one label. On this island the bigger conversation is almost always the coil, because a condenser near the Indian River, the Banana River, or a Sykes Creek canal needs a coastal-coated coil to hold up against the brackish air. The right brand matters less than the right size, a coil built for salt air, a clean install, and matched indoor and outdoor equipment, and that is where we focus.

Planning a new system? Get a free second opinion first.

Before you sign anything, let us give you a free written estimate on a right-sized system built for island salt air. No pressure, just an honest number from a family-owned team that knows what the lagoon does to equipment. Licensed CAC1823291.

Request a Free Second Opinion Call 321-599-6220

Florida Air handles the full HVAC lifecycle for Brevard County homes.

AC Repair in Merritt Island

Need a fix, not a new system? Same-area repair.

AC Replacement Cost Guide

Real price ranges by system type.

FPL Rebate Guide

Up to $550 on qualifying systems.

Heating & AC Installation

Whole-system installs across Brevard.

Free Second Opinion

Honest review before you buy.