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

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How Much Does Duct Repair & Sealing Cost in Orlando?

Duct repair and sealing in Orlando, FL typically costs between $350 and $1,200 for most homes, with the average job landing around $650. Minor sealing work, like closing a few separated joints with mastic, can run as low as $180, while full duct replacement in a larger home can exceed $2,500. The final number depends mostly on how much of your ductwork is accessible, how many leaks or gaps need attention, and whether any sections have collapsed or been chewed through by rodents.

Key Takeaways

• Most Orlando homeowners pay $350 – $1,200 for professional duct repair and sealing.
• Simple sealing jobs start around $180 – $400 in single-story homes with accessible ductwork.
• Full duct replacement in a 2,000+ sq ft Orlando home runs $1,800 – $3,500.
• You’ll pay more if ducts run through a tight attic (common in Florida ranch homes) or if you need a whole-home Aeroseal treatment.
• Cardinal Air Duct Orlando gives you a written price before any work starts, so there are no surprises at the door.

At home, we believe every homeowner should know the honest price range before booking. That’s why we hand you a written quote before a single duct is touched. If you’d rather skip the reading and get a real number for your house, call (850) 750-6095 for a free estimate.

Duct Repair & Sealing Cost Breakdown (2026)

Here’s what you can expect to pay in the Orlando market this year. These numbers reflect what we see daily in neighborhoods like Baldwin Park, College Park, Dr. Phillips, Winter Park, and MetroWest.

Those ranges cover the work itself. If your ducts are in a crawlspace or a low-clearance attic, expect labor to lean toward the higher end. Dense attic insulation and Florida heat can make a two-hour job into a four-hour one, and honest companies price for that rather than cutting corners. In neighborhoods like Thornton Park and Delaney Park, where many homes were built before 1960, we regularly find original metal ducts with rusted seams and failing tape. Those jobs need more than a quick patch; they need full resealing at minimum.

One thing worth understanding: “duct sealing” and “duct repair” are not the same service. Sealing means closing air leaks along existing ductwork so conditioned air stops escaping into the attic. Repair means fixing structural problems: crushed flex duct, disconnected boots, mold-contaminated sections, or ducts with rodent damage. In Orlando, where rats and squirrels in attics are a year-round reality, we see a lot of the latter. A torn flex duct in a Winter Park attic can lose 20 – 30% of the air your AC produces before it ever reaches a single room.

What Affects Duct Repair & Sealing Pricing in Orlando

Several local factors move the needle on your final price. Here’s what actually matters in the Orlando market, based on hundreds of jobs we’ve completed around the city.

• Duct accessibility. Most Orlando homes built after 1980 run flex duct through the attic. Attic temperatures in July regularly hit 130°F or more. Jobs in tight, hot attics take longer and cost more because technicians work in short bursts with hydration breaks. A ranch home in Conway with a spacious attic will price lower than a two-story in Baldwin Park with a cramped, low-slope roof.
• Age of the ductwork. Duct systems in Orlando typically last 15 – 20 years. Homes built during the 2004 – 2007 boom, especially in neighborhoods like Avalon Park and Hunter’s Creek, are now hitting that replacement window. Older metal ducts in 1950s-era homes near Colonialtown often have asbestos-wrapped seams, which require specialized handling and a higher price.
• Number of leaks found. Some homes have one obvious disconnect behind a register. Others have a dozen failed joints where the original install crew used cheap tape instead of mastic. More leaks means more labor and more sealant material, and the price scales accordingly.
• Pest or mold contamination. Orlando’s humidity creates the perfect environment for mold inside ductwork, and attics here are prime real estate for roof rats. If we find contaminated sections, those need to be cut out and replaced before sealing can happen. That’s a repair-plus-replacement job, not a simple seal.
• Type of sealing method. Manual mastic sealing costs less upfront. Aeroseal, which seals from inside using a pressurized aerosol, costs more but reaches leaks in inaccessible duct runs, like those buried in a slab foundation. Slab-ducted homes are common in older Orlando suburbs like Pine Hills and Azalea Park.
• System size and duct count. A 3-bedroom home in Lake Nona might have 10 supply runs and 2 return ducts. A larger custom home in Windermere could have 20+ runs. More duct to inspect, seal, or repair means more time and material.

If you want a precise number, call (850) 750-6095 and we’ll schedule a free walkthrough. Omar Haddad’s team will measure your system, inspect the accessible ductwork, and give you a written price that does not change when the technician arrives.

How to Save on Duct Repair & Sealing

Saving money on duct work isn’t about finding the cheapest bid. It’s about fixing the right things the first time. A cheap patch job that misses half your leaks means you keep paying higher AC bills every month, and those savings evaporate long before the next repair.

Here’s what actually saves you money in Orlando:

• Combine sealing with your duct cleaning. If your ducts are full of construction debris or years of pet dander, cleaning them right before sealing gives the sealant a clean surface to bond to. You’ll pay for one visit instead of two. Our Duct Repair & Sealing in Orlando service includes a pre-seal inspection so we only quote for what’s actually needed.
• Ask whether you need Aeroseal or manual mastic. Aeroseal is brilliant for hard-to-reach leaks, but it’s not always necessary. If your leaks are in accessible attic runs, manual sealing with professional-grade mastic costs 40 – 60% less and delivers the same result. A trustworthy company tells you the cheaper option when it works. We do.
• Handle one zone at a time if needed. Got leaks in the master bedroom and the kids’ room but a tight budget this month? In many cases, we can prioritize the worst-offending runs now and schedule the rest for later. Not every job has to be a whole-home project in one shot.
• Check for existing HVAC warranties. If your system is under 10 years old, some duct components may still be covered by the manufacturer or a labor warranty from the installing company. Worth checking before you pay out of pocket.
• Seal returns, not just supplies. Return ducts pull attic air into your system when they leak, which means you’re cooling 130°F air. Sealing supply leaks only fixes half the problem. A proper job addresses both, and it pays for itself in lower summer energy bills.

Every estimate from Cardinal Air Duct Orlando is free, and it includes a written price before you commit. Call (850) 750-6095 and you’ll know exactly what the work costs before you book.

Why Duct Sealing Matters More in Orlando Than Almost Anywhere Else

Orlando’s climate punishes duct systems. Eight months of the year, your AC runs daily. The humidity never really breaks. When ducts leak, you’re not just losing cool air; you’re pulling hot, humid attic air into the system, which forces your AC to work harder and raises indoor humidity levels. That humidity invites mold, makes your home feel sticky, and pushes your energy bill upward every single month from May through October.

The Department of Energy estimates that leaky ducts waste 20 – 30% of the air moving through a typical home’s HVAC system. In Orlando, where AC costs make up the single largest chunk of most electric bills (typically $180 – $350 per month in summer for a 2,000 sq ft home), sealing ductwork can cut cooling costs by 10 – 20%. On a $300 summer bill, that’s $30 – $60 back in your pocket monthly during peak season.

We see the same pattern in every corner of the city. A homeowner in Winter Garden calls us because one room won’t cool. We climb into the attic and find the flex duct to that bedroom has pulled loose from its boot, dumping conditioned air straight into the attic. The room is 10 degrees warmer than the rest of the house. One disconnect, fixed in under an hour, and the room cools down the same day. That’s the kind of repair that runs $150 – $300 and feels like a new AC system.

How the Repair Process Works with Cardinal Air Duct Orlando

When you book with us, you’re not getting a vague four-hour window and a guy in a pickup. You’re getting the Relay Standard experience, which is part of the Relay Home Co. family heritage and has been built since 2005 on one idea: total visibility, from booking to invoice.

Here’s what happens:

1. You call or book online. A live person answers 24/7. No voicemail loops. You tell us what you’re experiencing: hot rooms, high bills, dust, musty smells.
2. You get a live trackable arrival window. You’ll see exactly when Omar Haddad’s team is heading your way, and you’ll know the technician’s name before they ring the bell. Every tech is background-checked and arrives in uniform.
3. We inspect and quote before any work. The technician walks your system, checks accessible ductwork, points out exactly what’s happening, and hands you a written price. That price does not change at the door. If you decide not to proceed, no charge, no pressure.
4. We do the work with professional-grade equipment. Our trucks carry Rotobrush rotary brush systems for cleaning, Nikro HEPA vacuums for negative-pressure extraction (that means the loosened debris goes straight into the vacuum, not back into your living room), and Abatement Technologies containment units when the job calls for it. Then we seal with mastic and UL-listed foil tape, not hardware store duct tape.
5. You get before-and-after photos. Every job includes visual documentation so you can see exactly what was fixed and sealed. No taking a contractor’s word for it.
6. You pay from a digital invoice via link. Fully phone-native, from your first tap to your final receipt.

And every repair is covered by the 365-Day Done Right Promise. If the work isn’t right within a full year, we come back and correct it at no charge. That’s the longest satisfaction window in the air duct trade, and it applies to every job we do, not a select few.

Common Duct Problems We See in Orlando Homes

Understanding what’s actually wrong with your ducts helps you understand the price. Here are the most frequent issues we encounter across Orlando, and what they usually cost to fix:

Disconnected or Separated Ducts

Flex ducts pull loose from their metal boots over time, especially in attics where heat cycles cause expansion and contraction. This is the single most common repair we do. The fix involves reconnecting the duct, adding a proper zip tie or band clamp, and sealing the joint with mastic. Cost: $120 – $250 per disconnect.

Torn or Crushed Flex Duct

Roof rats love to nest in attic insulation and chew through flex duct. We’ve also seen ducts crushed by careless storage, foot traffic during roofing jobs, or original installs that were pinched from day one. Damaged sections are cut out and replaced with new R-6 or R-8 flex duct. Cost: $180 – $400 per run, depending on length and attic access.

Failed Tape Seals on Metal Ducts

Older Orlando homes with metal ductwork often have gray cloth tape that’s crumbling after 20+ years of attic heat. That tape fails, joints separate, and air pours into the attic. The fix is to scrape the old tape, clean the joint, and apply mastic sealant properly. Cost: $200 – $600 for a typical single-system home.

Leaky Plenum Connections

The supply plenum is the metal box directly on top of your air handler. If it’s not sealed well, it leaks before air even enters the duct trunk line. We see this constantly in Orlando because original builders used foil tape, which dries and peels within a few years. Cost: $150 – $350 for plenum sealing.

Mold or Water Damage in Duct Insulation

When ducts sweat in humid attics or condensation drains clog, the inner liner of flex duct can grow mold. In that case, sealing isn’t enough; the contaminated duct must be replaced. Cost: $250 – $500 per affected run.

Should You Repair or Replace Your Ducts?

This is the question every Orlando homeowner asks, and the answer comes down to three things: age, condition, and leak count.

If your ductwork is under 12 years old and has a handful of leaks, repair and sealing makes far more sense. You’ll pay hundreds instead of thousands, and the work typically takes one visit.

If your ducts are 20+ years old, showing signs of deterioration, or we find more than a dozen significant leaks during an inspection, replacement starts to make financial sense. Replacing all the ductwork in a 2,000 sq ft Orlando home costs roughly $1,800 – $3,500, but it resets the clock for another 15 – 20 years and eliminates the repeated repair calls. In areas like Audubon Park, where many homes were built in the 1950s and 60s, we often recommend full replacement because the original metal ducts have reached the end of their service life.

The honest way to decide is with a real inspection. We’ll show you exactly what needs repair, what needs sealing, and what would benefit from replacement. Then you decide with your eyes, not a sales pitch. Call (850) 750-6095 to schedule your free walkthrough.

FAQs – Duct Repair & Sealing Cost

How much does it cost to seal ductwork in Orlando?

Manual duct sealing in Orlando typically costs $180 – $800 depending on how many leaks need attention and whether the ducts are easily accessible. A full Aeroseal treatment for a whole home runs $1,500 – $2,800. Call (850) 750-6095 for an exact quote; estimates include a free inspection of your accessible ductwork.

Is duct sealing worth the money in Florida?

Yes. Leaky ducts waste 20 – 30% of the air your AC produces, which in Orlando means you’re paying to cool your attic every afternoon. Sealing ductwork typically cuts cooling costs by 10 – 20%, which can mean $30 – $60 per month in savings during peak summer months. Most Orlando homeowners recoup the cost of sealing within 2 – 3 years in energy savings alone, and they get more comfortable rooms as an immediate bonus.

How much does Aeroseal cost in Orlando, FL?

Aeroseal duct sealing in Orlando runs $1,500 – $2,800 for a typical 2,000 sq ft home. It’s pricier than manual sealing because it requires specialized equipment, but it’s the best option when ducts are buried in slab foundations or tucked into spaces a technician can’t reach. Call (850) 750-6095 and we’ll tell you whether Aeroseal is necessary or whether manual sealing gets the same result for less.

Can you repair air ducts the same day?

In most cases, yes. Duct repair is a same-day job for 80% of the homes we service in Orlando, especially when the problem is a disconnected flex run, a small tear, or a handful of failed joints. Larger jobs, like full duct replacement, typically take one to two days. We always give you a written price before work begins, and our live trackable arrival window means you’ll know exactly when we’re coming.

How do I know if my ducts need repair or sealing?

Signs include rooms that won’t cool evenly, dust accumulating quickly after cleaning, higher-than-expected summer electric bills, musty smells when the AC kicks on, and visible duct damage in the attic. If you’re unsure, we’ll inspect your system during a free estimate and show you exactly what’s happening with photos. Most inspections take under an hour and come with a written price for any recommended work. Call (850) 750-6095 to schedule yours.

Get Your Free Duct Repair & Sealing Estimate in Orlando

You don’t have to guess what duct work costs. You don’t have to tolerate hot rooms and rising power bills. And you definitely don’t have to accept a vague quote that changes once the technician is standing in your hallway.

Call (850) 750-6095 and a live person will answer, day or night. We’ll schedule a free inspection, give you a written price before any work starts, and back every repair with our 365-Day Done Right Promise. If it’s not right within a year, we make it right at no charge.

Omar Haddad and the Cardinal Air Duct Orlando team handle duct repair and sealing across the city, including Winter Park, Baldwin Park, College Park, Dr. Phillips, Lake Nona, Windermere, Winter Garden, MetroWest, Hunter’s Creek, and every neighborhood in between. You’ll know your technician’s name before they arrive, you’ll track their arrival live, and you’ll see photo proof of the work when it’s done. That’s the Relay Standard, and it’s included in every booking.

Pricing reflects the Orlando market as of 2026. Cardinal Air Duct Orlando offers free estimates – call (850) 750-6095.

Written by Omar Haddad, Owner at Cardinal Air Duct Orlando, serving Orlando since 2005.