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Air Duct Replacement in Florida

Your ducts are half the A/C system. In most Florida homes they're the older, leakier half. They sweat in a hot attic and blow conditioned air into it. We replace the whole network, sized and sealed right.

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What's included

What a full replacement includes

We replace the network end to end rather than patching whichever part failed first.

  • Sized trunk and branch runs

    New insulated runs sized to the equipment, with the airflow corrected where the old layout starved certain rooms.

  • Mastic-sealed connections

    Every joint sealed with mastic, not the tape that lets go in attic heat.

  • An attic duct system with a mastic-sealed rectangular plenum. Insulated flex branches run off it on metal hangers. A ceiling supply boot and register sit at the left, and the air handler below.
  • Boots, registers, and returns

    New boots and registers, and adequate return-air paths so the system can actually breathe.

  • Sealed, insulated plenum

    Rebuilt sealed and insulated, which is also the cheapest moment to add better filtration or UV treatment.

Brands we work with

  • ATCO Flex
  • Hart & Cooley
  • Owens Corning
  • Quietflex
  • Thermaflex

When new A/C still doesn't cool

Ducts sit in a hot attic and get replaced less often than anything else in the system. When they start leaking, it looks like the equipment is failing.

Why it matters

Benefits of getting new ductwork

Every Duct Replacement job we take is permitted and built to Florida code.

Our process, step by step

  1. Free in-home inspection

    We map the existing duct layout in the attic, check sizing and return paths, and document the failures. The visit takes 30-45 minutes, with no obligation.

  2. Itemized quote

    Within 3 business days: layout, materials and insulation rating, registers and returns, sealing, and permit, all listed.

  3. Permit application

    Duct replacement is permitted mechanical work in the counties we serve; we pull it as the contractor of record.

  4. Replacement

    Old duct comes out entirely, with no abandoned runs left leaking in the attic. The new sealed system usually goes in within 1-2 days.

  5. Verification and inspection

    We verify airflow at every register, confirm the system breathes freely, and pass county inspection.

Licensed, insured, and permitted in every county we serve.

Frequently asked questions

How do I know if my ducts need replacement instead of repair?

Age and material decide it, and pre-2000s flex duct with failing joints is past patching. Sealing a few leaks in a deteriorated network buys a year, not a decade. If rooms cool unevenly, dust returns fast, and the system runs nonstop, the inspection usually confirms it.

Will new ducts lower my electric bill?

If your current ducts leak, and most older South Florida systems do, yes, noticeably. You stop paying to cool the attic, and the A/C stops running extra cycles to compensate.

Can you replace ducts without replacing the A/C?

Ducts and equipment are independent scopes, and ducts often fail first. We size the new network to your existing equipment. If a changeout is coming soon, we design the ducts to suit the next system too.

How long does duct replacement take?

Most single-family homes take 1-2 working days. The home stays livable; the A/C is down only during the changeover hours.

Does new ductwork help with allergies and dust?

Usually a lot, because leaky returns pull attic air (dust, insulation fibers, humidity) straight into circulation. A sealed system moves only the air that passes the filter. We can also add upgraded filtration while the plenum is open.

Is duct cleaning a cheaper alternative?

Cleaning removes what's in the duct; it does nothing for leaks, crushed runs, bad sizing, or failed insulation. For an aging, leaking system, cleaning is money spent making the wrong ducts cleaner. We'll tell you honestly which situation yours is.

Not sure what your home needs? We'll walk it with you.

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Service areas

State Upgrades installs across all of Florida, from the Panhandle to the Keys.

67 Florida counties. Every one of them.

Miami HQ

Regions we cover

Select a region to see its counties.

Northwest Florida

Escambia County, Santa Rosa County, Okaloosa County, Walton County, Holmes County, Washington County, Jackson County, Bay County, Calhoun County, Liberty County, Gulf County, Franklin County

North Central Florida

Gadsden County, Leon County, Jefferson County, Madison County, Hamilton County, Suwannee County, Columbia County, Wakulla County, Taylor County, Lafayette County, Dixie County, Gilchrist County, Union County, Bradford County, Alachua County, Levy County, Marion County, Citrus County

Northeast Florida

Nassau County, Baker County, Duval County, Clay County, St. Johns County, Putnam County

East Central Florida

Flagler County, Volusia County, Lake County, Seminole County, Orange County, Osceola County, Brevard County

Tampa Bay / West Central Florida

Hernando County, Pasco County, Sumter County, Pinellas County, Hillsborough County, Polk County, Manatee County, Hardee County, DeSoto County, Sarasota County, Highlands County

Southwest Florida

Charlotte County, Glades County, Lee County, Hendry County, Collier County

Treasure Coast / Southeast Florida

Indian River County, Okeechobee County, St. Lucie County, Martin County, Palm Beach County

South Florida

Broward County, Miami-Dade County, Monroe County

  • Based in Miami
  • Florida Certified General Contractor · CGC1533731
  • Licensed, insured, and pulling permits in every county we serve
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