Air Duct Cleaning: Should You Clean, Repair, or Replace Your Ductwork?
How we decide between cleaning the ducts, repairing them, and replacing the run outright.
What’s Covered on This Page
When Duct Cleaning Is the Right Call
Cleaning is the right move when the ductwork itself is in good shape, but it’s full of dust, pet hair, or debris. This builds up over years of normal use. If your home is older, has had recent renovation work, or you’ve just noticed more dust settling around the vents, cleaning the supply and return runs helps. It restores airflow without touching anything structural. Itβs also a good step before moving into a house where you don’t know the duct history, or after pests have been in the attic.
It’s not the right call when the real problem is the ductwork itself. Torn flex duct, disconnected joints, or crushed runs in the attic won’t get better with a cleaning. These need duct sealing or duct repair instead. We’ll tell you flat out if that’s what we’re looking at. Cleaning dirty air out of a duct that’s leaking conditioned air into your attic does not solve what’s costing you money.
Pricing depends on how many vents and returns your system has, the size of the system, and how much buildup is there. Accessibility also matters, and whether you add sanitizing. Typical jobs run $300 to $700. A common single-system cleaning usually lands around $300 to $475. That includes the full duct cleaning, register cleaning, and an airflow check when we’re done. It doesn’t include mold remediation, duct repair or sealing, or any corrective work we find. That gets a separate quote before we touch it.
- Choose cleaning if: ductwork is intact, dust or debris is the main complaint, and airflow just needs restoring.
- Choose duct sealing or repair if: there’s visible damage, disconnected runs, or you’re losing conditioned air into the attic.
- Either way, a technician checks accessibility and buildup first. That’s what moves the price.
If you’re not sure which side of that line your home falls on, our air duct cleaning technicians will look at the actual ductwork before quoting anything. The $26 to $99 service call fee gets credited toward the job if you move forward with us.
When Duct Repair or Sealing Makes More Sense
If your ductwork has actual damage, cleaning it won’t fix that. A duct cleaning visit removes dust and debris and checks airflow. But it does not repair holes, reconnect a loose section, or seal a leaky joint. Those are separate jobs. They matter more than cleaning does when the ducts themselves are the problem.
A few signs point toward repair or sealing instead of, or in addition to, a cleaning. Rooms that stay hot or cold no matter how the system runs. A spike in your energy bill with no other explanation. Visible gaps or crushed sections where you can see the ductwork in the attic or garage. Or dust that seems to come back fast after a cleaning. In a lot of North Texas attics, flex duct gets stepped on or shifted during other work. The connections at the boots and plenum can loosen over the years from attic heat cycling through 100-plus-degree summers and hard winter freezes.
Our duct cleaning covers the full duct cleaning, register cleaning, and an airflow check. It does not include mold remediation, duct repair or sealing, or any corrective work found during the visit. If we find a torn section, a disconnected run, or gaps that are leaking conditioned air, we’ll show you exactly what we found. We will quote that work separately, rather than including a vague line item you can’t verify.
Sealing is usually the right move when the ductwork is basically sound but leaking air at the joints. This is common in older slab homes with attic-run duct systems. Repair makes more sense when a section is physically damaged, crushed, or disconnected. Either way, fixing the ductwork first makes a cleaning worth doing. There’s little point cleaning a system that’s still pulling in attic dust through a gap. We handle duct sealing and HVAC duct and vent repair as part of our services. A ductwork inspection during your visit tells us which one applies, if either does.
If you’re weighing this before you book, our air duct cleaning page walks through what a standard cleaning visit covers.
When Full Duct Replacement Is the Better Option
Duct cleaning runs $300 to $700 depending on vent count. It clears dust and debris out of ductwork that’s structurally sound. It does not fix ductwork that’s damaged, leaking, or undersized. When the problem is the duct itself and not what’s built up inside it, cleaning won’t solve anything. Replacement is the real fix.

A few things point toward replacement instead of cleaning. Flex duct in an attic that’s crushed, kinked, or has come loose from a boot or plenum is one example. Torn or missing insulation jacket on old duct runs is another, especially in Sunnyvale and Forney homes built in the 60s through the 90s. The duct material has been sitting in attic heat for decades. If a run leaks air at every seam and the house never quite feels even room to room, sealing or replacing that section usually does more than another cleaning ever will.
Mold is the other signal worth naming plainly. Our air duct cleaning service does not include mold remediation. If dust and debris sit on top of the duct interior, cleaning clears it. If mold is growing into the duct material itself, that’s a different situation. The material typically needs to come out rather than get cleaned again.
- Crushed, kinked, or disconnected flex duct in the attic.
- Torn or missing insulation jacket on older metal duct runs.
- Air leaking at seams badly enough that rooms never balance out.
- Duct material showing mold growth rather than surface dust.
- Sections crimped down small during a past installation, choking airflow.
Every cleaning visit for our air duct cleaning service includes a ductwork inspection and an airflow check. A technician sees what’s inside your system before anything gets scheduled. If that inspection turns up damage, leaks, or a duct that’s failing rather than dirty, we quote duct sealing or a duct and vent repair or replacement separately from the cleaning. Nothing gets added to your bill without you approving it first.
Most homes we go into just need the cleaning. But if your ductwork was installed poorly the first time, or it’s original to a decades-old slab home, replacement can be the better answer even if it’s not the one you called about.
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How We Help You Decide Between Cleaning, Repair, and Replacement
For most homes, cleaning is the right call, not a repair and not a replacement. It runs $300 to $700, with most jobs landing between $300 and $475. This depends on how many vents and returns you have. That price covers a full cleaning of your supply and return ductwork, cleaning the registers themselves, and an airflow check when we’re done.
What moves the price is your vent count, the size of your system, how much buildup we find, how easy the ductwork is to reach, and whether you want sanitizing added. A single-story home with a dozen vents and light dust is a different job than a two-story house with a crawlspace system that hasn’t been cleaned in years.
- Number of vents and returns in your home.
- Size of your HVAC system.
- How much dust and debris has built up.
- How accessible the ductwork is.
- Whether you want sanitizing added to the job.
Cleaning is the right fit when the ductwork itself is sound and the issue is dust, debris, or general buildup affecting airflow or air quality. That’s the job we quote at $300 to $475 for most homes. Where it stops being just a cleaning is if we get into your ducts and find something structural. A disconnected section, a crushed run, or leaking joints. That’s duct repair or duct sealing, and it gets quoted separately once we can see it.
We’ll tell you plainly if we find that during the visit. A cleaning doesn’t fix a leaking or damaged duct system, and we’re not going to charge you for a cleaning and call the problem solved when it isn’t. Mold remediation also falls outside a standard cleaning. If we spot signs of it, that gets flagged and handled as its own scope, not folded into the cleaning price.
Every visit starts with a $26 to $99 service-call fee. That amount gets credited toward the job if you move forward with us. Financing isn’t typically part of a cleaning this size, but it’s available if the visit turns into a bigger repair or a duct replacement. If you want the full breakdown before you book, our air duct cleaning page walks through what a standard visit includes.
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