Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
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.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
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Before
After
Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Hialeah?
Duct repair and sealing in Hialeah typically costs $280 to $950, with most single-family homes landing between $350 and $600 for sealing leaks and reconnecting a few failed joints. Larger jobs that involve replacing a run of damaged flex duct or sealing a whole attic system generally fall in the $700 to $1,200 range. The written estimate sets your final price, and an inspection is what tells you which of those bands you’re actually in.
That spread is real, not a sales tactic. A 1950s bungalow off Palm Avenue with a short trunk-and-branch layout in a low attic is a very different job from a two-story Hialeah home where the ducts run through a hot, tight space. We’ll get to what moves the number below.
Key Takeaways
- Typical duct repair and sealing in Hialeah runs $280 to $950 for most homes.
- Small sealing jobs (a few joints, one reconnect) start around $280 to $400.
- Whole-system sealing with duct runs in an attic usually lands at $600 to $1,200.
- Replacing a length of damaged flex duct adds $150 to $450 depending on length and access.
- Repair and sealing are priced per job by a written estimate, and estimates are free.
- Rusted, torn or disconnected ducts waste cooled air before it ever reaches a room, which is why the repair usually pays for itself in lower summer bills.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s how the line items stack up for Hialeah homeowners. These are typical ranges, not a quote. Access, duct material and how much of the system fails inspection are what decide where in each range you land.
| Job | Typical Estimated Range | What It Covers |
|---|---|---|
| Single joint sealing (1-3 joints) | $280 – $400 | Sealing isolated leaks at boots, plenums or connections with mastic and mesh |
| Whole-system sealing (15-30 leak points) | $450 – $950 | Sealing boots, plenum seams, trunk connections and accessible joints throughout |
| Attic duct sealing, larger system | $600 – $1,200 | Full sealing on a multi-branch layout, plus regrouting or reconnecting boots |
| Flex duct section replacement | $150 – $450 | Removing torn or collapsed flex duct and installing new insulated run |
| Insulated flex duct run (25 ft.) | $200 – $500 | Supplying and installing a full new duct run to one or more registers |
| Rigid metal duct repair | $250 – $700 | Sealing and reinforcing separated seams on older rigid duct systems |
| Disconnected duct reconnection | $180 – $400 | Reattaching a duct that has pulled away from a boot or plenum |
| Plenum repair or rebuild | $350 – $800 | Repairing damaged supply or return plenum at the air handler |
| Registers and grille resealing | $100 – $280 | Sealing gaps around supply and return registers |
| Duct cleaning combined with repair | Adds $350 – $650 | Full cleaning before repairs so sealing isn’t done over debris and dust |
What pushes the number up: a system with long runs through a hot attic, rigid metal duct that’s separated at multiple seams, or a home where the air handler sits on a platform with a plenum that’s rusted out. What keeps it low: a short, accessible layout, a single failed boot, or a small number of leak points found during inspection. Homes that have never had their ducts inspected often reveal a disconnected run that’s been dumping conditioned air into the attic, which is the single most common find and among the simplest to fix.
One thing we always mention on the estimate: if the ducts are packed with debris and haven’t been cleaned, sealing over them traps that material. On those jobs the right order is clean first, then seal, and that’s why the combined line item exists. We run Hialeah Duct Cleaning work with Rotobrush rotary-brush systems and Nikro HEPA negative-air machines so the interior of the duct is actually scrubbed and the dislodged material is captured rather than pushed back into the rooms, which is the whole point of cleaning before you seal.
What Affects Duct Repair & Sealing Pricing in Hialeah
Hialeah is hot and humid for most of the year, and that shapes duct work here in ways that don’t show up in a generic cost guide. A duct system that runs through an unconditioned attic in this climate takes a beating: condensation forms on cold surfaces, insulation gets soaked, and flex duct that’s been sitting in that heat for years starts to tear or sag. That said, a short list of things actually moves the estimate.
- Attic access and how tight it is. A low-slope attic with limited room to move means the technician works slower, which adds labor. A few of the neighborhoods near Hialeah Park have homes with shallow attic spaces where every connection takes extra time.
- Duct material. Insulated flex duct is usually the cheapest to repair and replace. Older rigid metal duct with separated seams is more labor-intensive because each joint has to be sealed and resecured properly. If the system is a mix of both, expect a mid-range price.
- Number of leaks found. A single boot that’s pulled away from a register is a small job. A whole trunk line with fifteen or twenty leak points is a full-system sealing job, and the price gap between those is the largest single factor.
- Whether cleaning is needed first. Debris-filled ducts should be cleaned before repair and sealing, which adds to the total if you haven’t had the system cleaned recently.
- Condition of the air handler and plenum. A plenum that’s rusted through or a return that’s collapsed changes the scope. These aren’t common, but when they show up the estimate reflects it.
- Contamination level. When an inspection turns up signs of buildup that require more than routine dust removal, the job calls for equipment rated for that work. We deploy Abatement Technologies air filtration units when the situation calls for a higher level of capture, and that is a factor in labor and equipment for those jobs.
How to Save on Duct Repair & Sealing in Hialeah
The biggest savings come from catching leaks early. A duct that’s just starting to separate at a boot is a small sealing job. Left alone through a few more Hialeah summers, that gap lets humid air into the system, the insulation soaks, and you’re looking at replacement rather than repair. An inspection before the heat of summer is the cheapest step you can take.
- Bundle cleaning and repair. If the ducts need cleaning anyway, doing it in the same visit as the repair means the technician is already in the system and the setup cost is shared. It also ensures sealing isn’t done over debris.
- Get everything inspected at once. Ask for the whole system to be checked, not just the spot you noticed. Finding all the leaks in one visit is cheaper than paying for two trips for two different problems.
- Don’t wait for a failing AC. A duct that’s leaking cooled air into the attic forces the system to work harder. Fixing the leak now can lower your summer energy use, and the price of a small sealing job is far below what a stretched system costs to run.
- Ask about IAQ upgrades while the ducts are open. If you’ve been thinking about whole-home filtration or humidity control, the ducts are the delivery system for it. We work with Honeywell and Aprilaire filtration and humidity products, and that equipment performs best when the ducts feeding it are clean and sealed. Getting the assessment done alongside the repair is more efficient than doing it later.
- Ask for the written estimate before any work begins. That’s what we do. The estimate is free, it sets the price, and there are no surprises. Call (888) 831-4689 to schedule one.
One caveat worth stating plainly: no honest duct professional will quote a sealing price over the phone without seeing the system. The range is wide because the systems are. What we can do is schedule an inspection, look at what’s actually there, and hand you a written estimate that ties each line to a specific repair.
Repair or Replace? How to Think About Duct Costs in Hialeah
For most Hialeah homeowners, repair and sealing is the right call when the ductwork is structurally sound but leaking at joints, boots or connections. Replacement becomes worth considering when the duct is collapsing, so badly damaged that sealing won’t hold, or so old that it’s below code-compliant insulation for a hot climate. A system that’s just leaking at a dozen points is a sealing job, not a replacement job, and we’ll tell you which one you’re looking at.
If you want to understand the difference between a cleaning-only visit and a repair-and-sealing job, the Hialeah pages lay out both, and the inspection is what tells you which one your home needs.
Why Duct Sealing Matters More in Hialeah’s Climate
In a climate where the AC runs hard for most of the year, every leak in the duct system is a leak in the cooling you’re paying for. Conditioned air escapes into a hot attic, the air handler runs longer, and the bill climbs without any obvious sign in the rooms. Sealing the leaks puts that air back where it belongs.
There’s a comfort angle too. Leaky return ducts in a humid climate can pull warm, moist attic air into the system, which is the opposite of what you want. Sealing the return side is often the difference between a house that feels right and one that never quite does. That’s also why we pair repair work with a proper cleaning: a sealed system with dirty ducts still delivers dust.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Hialeah?
Duct sealing in Hialeah typically costs $450 to $950 for a whole-system job, and $280 to $400 for sealing a small number of joints. The exact price depends on how many leak points the inspection finds and how accessible the duct runs are. Call (888) 831-4689 for a free estimate.
Is it cheaper to repair or replace ductwork?
Repair and sealing is almost always cheaper than full replacement, usually by a wide margin. A typical sealing job in Hialeah runs $450 to $1,200, while replacing an entire duct system is a much larger project. Replacement is only worth discussing when the duct is collapsing or so damaged that sealing won’t hold. Call (888) 831-4689 and we’ll tell you which category your system falls into.
Can you fix a disconnected duct the same day?
Often, yes. A single disconnected duct that’s accessible is a $180 to $400 repair, and we can usually get to it the same day. Call (888) 831-4689. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Do I need duct cleaning before sealing?
Usually, yes. Sealing over debris-filled ducts traps the material inside. Cleaning adds $350 to $650 to the total, but it’s the right order of operations. We use Rotobrush rotary-brush systems and Nikro HEPA vacuums so the material comes out fully. Call (888) 831-4689 for a combined estimate.
How do I know if my ducts are leaking?
The common signs are rooms that never cool properly, a bill that’s climbed without a rate change, dust around the registers, and a system that runs longer than it should. An inspection confirms it. Inspections are free. Call (888) 831-4689.
What Happens When You Call
You’ll talk to someone who schedules an inspection, not a sales pitch. When the technician arrives, we check the accessible duct runs, the plenum, the boots and the registers, and we note what’s leaking, what’s damaged and whether cleaning is needed first. Then you get a written estimate with the repairs itemized. Our technicians have up to 9 years of experience, and we work with contractor-grade tools – Rotobrush, Nikro, Abatement Technologies – because duct repair done with light-duty equipment doesn’t hold up in a Hialeah attic.
We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
If the insulation around a duct has soaked through or the plenum is damaged, we’ll flag it. We don’t do HVAC installation, so if the equipment itself is the problem we’ll say so and point you to a licensed mechanical contractor. What we do is the ductwork and the air quality side of the system.
Call for a Free Estimate
Every estimate on duct repair and sealing is free, and the price you’re quoted is the price in the written estimate. Call (888) 831-4689. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. If your Hialeah home has rooms that never cool evenly, dust that settles around the registers, or a system that seems to run forever, the ducts are the first place to look, and it costs nothing to find out what’s going on.
Pricing reflects the Hialeah market as of 2026. Hialeah Duct Cleaning offers free estimates – call (888) 831-4689.
Written by the team at Hialeah Duct Cleaning.
What Our Customers Say
"They photographed every return and supply before starting and sent me the file afterward. No upsell to a sanitizing treatment I didn't need."
- Carrie Sutton"My wife's allergies had been bad in this house since we moved in. It's been two months since they did the ducts and it's noticeably better. Not a miracle, but real."
- Steven Yang"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Daniela Flores