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Mortons Air Duct Orlando air duct cleaning team

Duct Repair & Sealing Cost - Leakage Measured, Then Priced in Writing

We measure the actual leakage before recommending any work, then put the scope and the price in writing. You are paying to fix a measured problem, not a guess.

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That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.

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How Much Does Duct Repair & Sealing Cost in Orlando?

Duct repair and sealing in Orlando typically costs between $250 and $1,100, with most homeowners paying around $550 for moderate repairs and sealing across a single HVAC system. A full duct sealing job using aerosol or mastic sealant averages $1,800 to $3,200 when significant leakage exists throughout the home. The price depends on access to your ducts, how much leakage you have, and whether the work happens in an attic, crawl space, or interior soffit.

Duct Repair & Sealing Cost Breakdown (2026)

Here’s a line-by-line look at what Orlando homeowners can expect to pay for common duct repair and sealing work as of 2026. These are real- world ranges from the Central Florida market, not national averages bundled into a generic number.

Service Typical Orlando Price Range What It Includes
Duct inspection & leak test $150 – $350 Visual inspection plus pressure testing or thermal imaging to locate leaks
Sealing a single accessible joint or seam $75 – $150 Mastic or foil tape applied at one visible connection point
Mastic sealing (multiple runs) $400 – $900 Brush-on mastic across 5 – 10 linear feet of accessible ductwork
Aerosol duct sealing (whole home) $1,800 – $3,200 Seals leaks from inside the duct with an aerosol mist, includes before/after leak measurements
Duct repair (small tear or hole) $150 – $400 Patching a punctured or crumpled section
Duct replacement (per 10-foot run) $350 – $850 Replacing a severely damaged or collapsed section, including new hangers
Attic ductwork re-support $200 – $500 Re-hanging sagging ducts and adding straps so air flows evenly
Supply register reseal $40 – $90 per register Removing the register, applying sealant, and reinstalling tightly

What pushes a job toward the higher end? Ducts in a tight, low-clearance attic over a stretch of blown-in insulation take longer than ducts in an open basement or garage chase. Homes with multiple systems, long trunk lines from one end of a ranch house to the other, or heavily deteriorated ductboard insulation also run higher. Material matters too: flexible ductwork is cheaper to repair than rigid metal. On the flip side, Orlando homes with newer construction and straightforward attic layouts often land at the lower end of these ranges.

What Affects Duct Repair & Sealing Pricing in Orlando

  • Access to the ducts. In Orlando, most ductwork runs through the attic, which gets brutally hot from May through October. Technicians pace themselves and may need to work in shorter windows, and that can add a small labor premium to estimates you’d see in cooler months. If ducts run through a crawl space with low clearance, the job takes longer and costs more.
  • Duct material. Older Orlando homes built before roughly 1990 often have rigid metal ducts. Newer subdivisions from the last 20 years lean on flexible duct. Flex duct is quicker to repair, which keeps labor costs down. But flex that’s been chewed by rodents in an attic is often beyond repair, and replacement costs more than sealing.
  • Number of leaks found. A single supply boot that’s pulling away from the drywall might be a $90 reseal. A system where the test shows 30% of your conditioned air is leaking into the attic is a whole-home aerosol sealing job at $2,000 or more.
  • Where the leaks are located. Leaks at the plenum connection, where the main trunk meets the air handler, are common in Orlando homes but awkward to reach. Expect the labor on that one connection point to run higher than a leak on a straight section of flex.
  • Time of year. Demand for HVAC work spikes in June, July, and August when AC systems fail in 95-degree heat. Booking a duct sealing or repair in the fall or winter can sometimes get a faster appointment, though we don’t discount based on season. It’s worth being honest with yourself: if your ducts are leaking, your AC is working harder every month, including the shoulder seasons.
  • Home size and system count. A 1,400-square-foot Orlando starter home typically has one system and maybe 12 to 16 runs. A 3,500-square-foot home in Winter Park or Dr. Phillips might have two systems and 30 runs. More ductwork means more time and more sealant, which shows up in the final price.

What Does Duct Repair & Sealing Actually Involve?

When we do duct repair and sealing in Orlando, the first step is always a straight answer to one question: where exactly is the air going that isn’t reaching your rooms? We don’t start sealing until we know the answer. That means inspecting the ducts at the plenum, at each register, and along every accessible run. If you have a leak test done, we use a pressure measurement so you can see the before and after numbers with your own eyes.

For sealing, we use mastic on accessible joints and seams because it’s the right sealant for Florida’s humidity. Foil tape dries and fails in attics that hit 140 degrees in August. Mastic bonds to flex, metal, and ductboard and stays flexible through years of temperature swings. If the leakage is widespread or in ducts we can’t fully reach, aerosol sealing is the better fit. That process pumps a fog of sealant through the ducts from the inside, and it shows a measured reduction in leakage on the spot.

Repairs can range from something simple, like adding a missing strap so a duct stops sagging, to something structural, like cutting out a crushed flex run and replacing it. We’ll show you photos of what we find before we fix it. No one should pay for duct work they never saw. That’s part of how we run every home visit here in Orlando: a written price, a clear plan, and no surprises when the invoice comes.

Signs Your Ducts Need Repair or Sealing

Orlando families often call us after noticing one of a few things: a bedroom that never gets as cold as the rest of the house, a spike in the FPL bill without a change in habits, or dust that settles on furniture just a few days after cleaning. None of those alone proves a duct problem, but together they point toward conditioned air leaving the system before it reaches the room.

  • Rooms that run 4 or 5 degrees warmer than the thermostat setting
  • An electric bill that climbs through late spring even before peak summer
  • Visible dust streaks near supply registers or on the ceiling around vents
  • A whistling sound near the air handler or along the attic trunk line
  • Sections of flex duct lying on the attic floor instead of hanging from straps
  • A musty smell when the AC runs, which in Orlando’s humidity usually means attic air is getting pulled into the return side

How to Save on Duct Repair & Sealing

The biggest money saver in duct work is catching leaks early. A failed connection at the plenum doesn’t stay one leak for long. The pressure difference keeps pulling at the flex, and soon you’re replacing a run instead of sealing a seam. If you suspect an issue, an inspection costs far less than emergency repair down the road. Same goes for serving the AC system regularly; a clean filter and unclogged coil mean less strain on the duct connections.

Here’s what actually saves money, no gimmicks included:

  • Fix the biggest leak first. If a pressure test shows one major leak and a few small ones, start with the major one and re-test before paying for anything else. You might be surprised how much that single fix changes the numbers.
  • Group repairs. If you’re already paying for a technician to climb into the attic, bundle nearby repairs and resealing into one visit. You pay the access cost once, not twice.
  • Accept a free estimate. Written estimates from reputable Orlando companies cost you nothing and show you exactly what’s wrong, what it costs, and what’s optional. Get at least two before committing.
  • Don’t wait on the AC season. Duct problems don’t go on vacation. The longer leaking ducts push air into the attic, the more heat build-up your AC fights and the more you pay FPL while getting less comfort. It’s a quiet loop that only ends when the leak is sealed.

Our estimates in Orlando are always free. Call (321) 204-8194 and a person answers, not a voicemail.

Repair vs. Replacement: Which Makes Sense?

Sealing makes sense when the ducts themselves are structurally sound. If the flex is intact, the joints are just leaky, and the insulation wrap is holding up, mastic or aerosol sealing will solve the problem for a fraction of what replacement costs. In Orlando’s climate, sealed ducts also reduce the amount of humid attic air being pulled into the system, which helps the whole house feel drier and the AC cool more efficiently.

Replacement makes sense when ducts are crushed, water damaged, or so full of pin holes that sealing would be like patching a tire with ten plugs. Rodent damage is not rare in Orlando attics. Rats and squirrels chew through flex duct, and the result is often beyond repair. If a section has collapsed, replace that section. Don’t pay someone to smear mastic over a collapse and call it fixed. Ask to see the replacement duct before it goes in, and ask for photos after. A proper company will not hesitate to show you both.

For a single damaged run, replacement costs $350 to $850 in Orlando, and that’s often the right call. It’s cheaper than paying for repeated visits when the patched flex fails again. Let the technician show you the damage before you decide.

Why Duct Sealing Matters More in Orlando Than Most Places

Orlando’s heat and humidity put unusual stress on duct systems. For six months a year, attic temperatures regularly climb past 130 degrees. That heat bakes the tape, dries out the mastic, and flexes the metal and plastic connections between the air handler and the runs. Meanwhile, the AC is running almost constantly, pushing conditioned air through every leaky joint while the system fights to keep your home at 74 degrees. The result: a smaller leak in Orlando costs more in wasted energy than the same leak in a place with mild summers.

Humidity is the second punch. When duct leaks sit on the return side, the system pulls hot attic air into the cooled stream. That air carries moisture. More moisture means higher humidity in the house, and Florida homes already fight enough of that. Sealing return ducts is one of the simplest ways to improve indoor comfort without touching the AC itself. If you notice your home feels sticky even at 76 degrees, a return leak is often part of the story.

FAQ: Duct Repair & Sealing Cost in Orlando

How much does it cost to seal ductwork in Orlando?

Sealing ductwork in Orlando costs between $250 and $1,100 for targeted mastic sealing and between $1,800 and $3,200 for whole-home aerosol sealing. The lower number covers a few accessible leaks or resealing registers. The higher number covers a system with major leakage throughout the attic. For an exact quote, call (321) 204-8194. Estimates are free.

Is duct sealing worth the money in Florida?

For most Orlando homes with measured leakage above 10 – 15%, yes. You pay once for the sealing, and every month after that, your AC system pushes the air you paid to cool into your living space instead of the attic. In a climate where AC runs 9 to 10 months a year, the savings compound faster than elsewhere. Homes with 30% leakage often see the highest return from aerosol sealing, both in energy cost and in humidity control.

How long does duct sealing take?

Orlando duct sealing jobs typically take 4 to 8 hours for a single-system home, depending on how much of the ductwork is accessible. Mastic sealing on visible joints may be done in an afternoon, while a whole-home aerosol sealing job with before and after testing usually takes most of a day. Some two-system homes take two visits. We’ll tell you the timeline before we start, and we won’t leave until the work is tested.

Can I repair my own ducts?

You can reseal a visible register boot or use mastic on an accessible joint you can reach safely, but Orlando duct systems live in attics that get dangerously hot, and working around the air handler involves edges and connections that can cut. If you’re going into the attic, you need appropriate heat protection and a safe path. For anything beyond a simple visible seam, we recommend a trained technician do the work and show you the before and after. Call (321) 204-8194 and we’ll walk through what you’re seeing before anyone climbs a ladder.

Does homeowners insurance cover duct repair in Orlando?

Insurance usually covers duct damage when it results from a covered peril, like a tree falling on the home or a fire. It generally does not cover age, wear and tear, rodent damage, or leaks discovered during a routine inspection. If you’ve had an event that damaged your home and your ducts were affected, your adjuster can tell you if your policy applies. For a free estimate on the repair itself, call us at (321) 204-8194.

Do I need a permit for duct repair in Orlando?

Most duct repair and sealing work in Orlando does not require a permit because it’s considered maintenance rather than a change to the HVAC system. Full duct replacement that alters the system design or load calculations can fall under permit requirements, depending on the scope. A licensed contractor will know when a permit applies and will pull it if needed. What you should always insist on is a company that follows Orange County or City of Orlando code for duct strapping, mastic, and insulation levels. That’s the standard we work to on every job.

Why Orlando Families Call Morton’s Air Duct Cleaning

Paul Adeyemi leads our team at Morton’s Air Duct Cleaning, and he’s the reason every visit starts the same way: a written price before any work begins. No one wants a technician to climb out of an attic and hand them a number they never saw coming. We don’t do that. We inspect, we show you what we found, we write the price down, and only then do we start.

This company has been doing air duct work since 2005 as part of the Cedarwell family of independently owned companies. The Cedarwell Care Promise sits behind every job we do in Orlando. That means shoe covers and drop cloths are down before any equipment crosses your threshold. It means our people are background-checked, uniformed, and trained to notice that there’s a sleeping toddler down the hall and a dog that’s curious about the front door. It means we use professional equipment from Rotobrush, Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman, not entry-level rental gear that barely moves the needle. And when the work is done, we take a photo of the clean-up before we leave so you can see exactly how your home was treated.

Every job carries our 365-Day Done Right Promise. If the work isn’t right, we make it right. Not a coupon, not an argument. We come back and fix it. That’s the whole promise.

Get a Free Duct Repair & Sealing Estimate in Orlando

If your ducts are leaking, you don’t have to guess what the fix will cost. Call (321) 204-8194 and talk to a live person, any hour of the day or night. We’ll schedule an inspection, give you a written price, and show you exactly what we plan to do before we do it. No pressure, no surprise charges, and no mystery on the invoice. That’s how it should work, and it’s how we run every job in Orlando.

Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving Orlando and Central Florida since 2005.

Pricing reflects the Orlando market as of 2026. Mortons Air Duct Orlando offers free estimates – call (321) 204-8194.

What Our Customers Say

★★★★★ 5.0 from 3+ reviews

"Spotless work. They laid drop cloths everywhere and I was honestly impressed there was zero mess at the end. Showed me the dirt they pulled out so I could see it was worth it."

- Shelby Dunham

"My son's asthma has been better since they did the ducts. The crew was gentle and quiet, asked before moving anything, and used a product they said was safe around kids and pets."

- Grant Mcallister

"They cleaned our ducts and the dryer vent. What I appreciated was how careful they were moving furniture back exactly where it was. Took before and after photos of each vent too."

- Hiroshi Tan
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