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
See the difference
Before
After
Before
After
Before
AfterHow Much Does Duct Repair & Sealing Cost in Raleigh?
Duct repair and sealing in Raleigh typically costs $180 to $420 for small sealed gaps and joint repairs, while larger jobs that involve replacing crushed flex runs or rebuilding sections of trunk line generally run $450 to $1,600. Most Raleigh homes fall in the $300 to $900 range once we inspect the system and know exactly how much ductwork is leaking. We give a written estimate before any work starts, and the estimate sets the final price.
Duct Repair & Sealing Cost Breakdown (2026)
The top of the range is not a guess pulled from thin air. Leaky ductwork is one of the most common reasons a Raleigh home has cold rooms in summer and hot spots in winter, and the fix depends almost entirely on how deep the damage runs.
| Job | Typical Raleigh price (2026) |
|---|---|
| Sealing visible gaps and joints with mastic and mesh (up to 6 leaks) | $180 – $320 |
| Sealing a full accessible trunk-and-branch system | $320 – $620 |
| Replacing one torn or crushed flex duct run | $260 – $450 per run |
| Reconnecting a disconnected run at the boot or plenum | $200 – $400 |
| Rerouting a run that was crushed behind new ductwork or a finished wall | $450 – $900 |
| Rebuilding a section of rigid trunk line | $600 – $1,600 |
| Duct cleaning combined with sealing (whole home) | $450 – $1,100 |
What pushes a job toward the top of that table? Access is the biggest one. A leak in an open basement or crawlspace is quick work. A leak above a ceiling in a finished bonus room, or a run crushed behind drywall that has to be opened and patched, adds labor fast. Rigid metal duct that has started to sag and separate costs more to put right than flex duct. And if the system has never been cleaned, sealing over years of debris is the wrong move: you want the cleaning and the repair in the right order, which we plan into one job. Registers and grilles with loose connections, common in older Raleigh homes where the metal has worked loose over decades, add a little more.
Where the number comes down: leaks you can actually reach, flex runs that just need a proper reconnect, and any job where the customer has the system cleaned and sealed together so we are only on site once. We measure airflow before and after, so you can see the difference, not just take our word for it.
What Affects Duct Repair & Sealing Pricing in Raleigh
- How much of the system you can reach. Raleigh has a lot of homes on crawlspaces and a lot of homes with attic air handlers. Crawlspace ductwork is usually quicker to seal than ductwork buried in attic insulation, and that labor difference shows up in the estimate.
- Raleigh’s humid summers and the condensation they create. When cool duct air meets a poorly insulated run in a Raleigh August, you get condensation, wet insulation, and in bad cases mold at the joints. Repairing a run that failed from moisture means replacing insulation and fixing the seal, not just taping over it. That is real work, and it is priced as such.
- Age of the home and duct material. Tract homes from the 1990s and 2000s across Raleigh are often flex duct that sags and kinks. Older homes near the city center more often have rigid metal trunk lines with joints that have separated. Both can be sealed, but they need different handling.
- How many separate problem areas there are. One disconnected flex run is a small job. A system with five leaks, two crushed runs, and a loose plenum is a half-day job. Pricing follows the count.
- Whether cleaning is needed first. Sealing over debris traps it. If the ducts haven’t been cleaned, we recommend the cleaning first, and doing both together is more economical than booking them separately.
- Air-quality setup. If your home has a Honeywell or Aprilaire filtration system tied into the return, we work compatibly around it rather than cutting it out. Familiarity with those setups keeps the repair simple.
How to Save on Duct Repair & Sealing
There is no trick to paying less for good duct work, but there are a few ways to keep the number down without cutting corners.
- Bundle cleaning and repair in one visit. We are already there with the Rotobrush and Nikro equipment. Combining the two is cheaper than scheduling two separate jobs.
- Fix leaks when you find them, not after they spread. A small separated joint is a $200 fix. Left alone through a Raleigh summer, moisture gets in, insulation fails, and the job grows.
- Clear access before we arrive. Move boxes out of the crawlspace hatch and clear the attic access. That is time we are not spending on moving your things, and it saves you on labor.
- Ask for airflow measurements before and after. We do this anyway. Seeing the numbers means you know the repair worked, so you’re not paying again later for something that never got fixed in the first place.
- Get the estimate in writing before work starts. Free estimates, upfront pricing, no surprises. Call (844) 834-2817 and we will schedule a look.
What Does Duct Sealing Actually Involve?
Sealing is not taping over a gap you can see. We use mastic and mesh to close the joints properly, reconnect runs that have pulled loose from the boot or plenum, and replace crushed sections where airflow is being choked. On a full system job, that means every accessible joint in the trunk and branches gets sealed, not a quick pass at the ones that are easy to reach.
The work is done with the Rotobrush brush-agitation system and Nikro HEPA-rated vacuums on site. When we open and disturb a duct system, loosened debris can travel. The Abatement Technologies air-containment machines we run prevent that debris from recirculating through the house while we work. That is the difference between a repair done cleanly and a repair that leaves dust in your living room. If you want the full scope of what we do, see Jasper Duct Cleaning. For local details, our Raleigh page covers how we work in this market.
Does Leaky Ductwork Really Cost You Money in Raleigh?
Yes. Leaky ducts are a hidden energy cost. Cool air escapes into the attic or crawlspace instead of reaching the room. The system runs longer to compensate. And in a Raleigh summer, that leaked cool air meeting humid attic air can also cause condensation damage over time. Sealing the system is a repair that pays for itself partly on the utility bill and partly on the AC’s wear and tear. We do not quote vague savings percentages, because the real number depends on your system. What we can show you is the measured airflow before and after the work.
When Is Repair Cheaper Than Replacement?
Repair is usually the cheaper option when the ductwork itself is sound and the problem is leaking, disconnection, or a single crushed run. Replacement comes into play when the duct material has failed across most of the system, or when it is undersized for the equipment. One thing worth understanding: most duct cleaners do not do repair. They arrive, clean, and then point at a torn run and say “you’ll need a duct company for that.” We do both. No subcontracting, one provider for cleaning, repair, and dryer vent work. That keeps pricing straightforward because there is no middleman adding to the bill.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Raleigh?
Sealing costs range from $180 to $620 depending on how much of the system is accessible and how many leaks there are. A handful of joints is at the low end; a whole-home trunk-and-branch seal is at the top. Call (844) 834-2817 for an exact quote. Estimates are free.
How much does it cost to replace a duct run in Raleigh?
A single run replacement typically runs $260 to $450, and rerouting a crushed run that is boxed in by construction runs $450 to $900. The variable is access, not the duct itself. We will tell you on site which it is. Call (844) 834-2817 to schedule.
Can duct repair and sealing be done the same day?
Usually yes for a straightforward job. We offer same-day service where the schedule allows. We answer 24/7, and fast dispatch runs from 7am to 7pm, Sunday through Friday. Call (844) 834-2817 to find an opening.
Do I need a permit for duct repair in Raleigh?
Most duct sealing and flexible-run repairs don’t require a permit, but any work touching the main trunk line or involving structural changes can. Ask your city’s building department to confirm for your address, and we will explain what the job involves before any work begins.
Is it worth sealing ductwork if I’m selling my house?
Yes, often. Leaky ducts show up in a home inspection, and a documented repair with before-and-after airflow measurements gives a buyer something concrete. Sealing at the $180 to $620 range is a small number next to a buyer asking for credits later. Call (844) 834-2817 for a free estimate before a pre-listing inspection.
Why Choose Us for Duct Repair in Raleigh?
Because we repair what others only clean. That is the whole point. Most duct cleaners bring a vacuum and leave. We bring Rotobrush agitation brushes, Nikro HEPA vacuums, and Abatement Technologies containment equipment, and we use them to find leaks, seal them, and fix the runs that were never installed right in the first place. You get one provider, one visit, and a working system at the end. Our technicians have up to 10 years of experience. See the full Raleigh service page for what’s included and how to reach us.
Contact
If your home in Raleigh has cold rooms, weak airflow, or ducts that whistle and rattle, we can tell you what it will cost and fix it. Call (844) 834-2817 for a free estimate. We answer 24/7, and fast dispatch runs from 7am to 7pm, Sunday through Friday.
Pricing reflects the Raleigh market as of 2026. Jasper Duct Cleaning offers free estimates – call (844) 834-2817.
What Our Customers Say
"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."
- Eric Meyer"Found a disconnected run in the crawlspace while they were in there and told me about it rather than cleaning around it."
- Keisha Ingram"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Nicole Brooks