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 Antioch?
Duct repair and sealing in Antioch typically runs $285 to $1,450 for most homes, with smaller seam and joint sealing jobs landing near the low end and partial duct replacement or a full attic trunk-line rebuild pushing toward the top. A one-room branch run that needs sealing or reconnecting is usually a $285-$520 job. Larger homes with long runs through a hot attic, or system-wide leakage that needs mastic and tape on dozens of joints, sit in the $650-$1,450 range. We give you a written estimate before any work starts, and the estimate sets the final price, not the range above.
If your system is losing air in the attic or you’ve noticed dust blowing from vents after a renovation, that’s usually a sealing or repair problem, not a cleaning one. The cheapest way to find out what you’re actually dealing with is a free estimate. Call (877) 212-3243. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Key Takeaways
- Most duct repair and sealing in Antioch costs $285-$1,450, set by written estimate.
- Attic duct runs in Antioch’s summer heat are the most common failure point we see.
- Sealing and repair come before cleaning when the system is leaking, because cleaning a leaking system just re-dirties it.
- Our technicians have up to 8 years of experience and use Rotobrush, Nikro, and Abatement Technologies equipment.
- Free estimates, upfront pricing, same-day service available.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s how the numbers break out in the Antioch market for 2026. These are typical estimated ranges, not a quote. Your written estimate is the final word.
| Job | Typical Estimated Range |
|---|---|
| Sealing a single disconnected or leaking joint | $185 – $340 |
| Reconnecting and sealing one branch run | $285 – $520 |
| Sealing widespread joint and seam leaks (mastic and tape) | $450 – $850 |
| Repairing a crushed or torn flex duct section | $320 – $620 |
| Replacing a short run of flex duct in the attic | $400 – $780 |
| Rebuilding a damaged trunk line or plenum connection | $750 – $1,450 |
| Repair plus full-system deep clean (Rotobrush + Nikro HEPA) | $650 – $1,600 |
| Dryer vent cleaning (separate fire-safety service) | $150 – $320 |
What pushes a duct repair job higher? Distance and access top the list. A branch run tucked behind a knee wall or buried under blown insulation takes longer to reach and seal properly, and that labor adds up. Multiple leaks across the system cost more than one isolated failure because each joint needs to be found, cleaned, and sealed. If the ductwork itself is old, brittle flex that’s tearing at the collars, replacing sections is usually cheaper over time than patching them repeatedly. On the other side, a single disconnected joint or a short run that just needs re-taping is quick work and stays at the low end.
Repair and cleaning are two different line items. When we repair what we find first, we then run a full cleaning so you’re not paying to seal a system that’s still full of debris. The layered process – Rotobrush brush agitation, Nikro HEPA extraction, and Abatement Technologies negative-air filtration for containment – is what makes a combined repair-and-clean job worth doing in one visit. If you only need sealing and your ducts are already clean, we’ll tell you that and skip the cleaning charge.
What Affects Duct Repair & Sealing Pricing in Antioch
- Attic heat and duct condition. Antioch summers push attic temperatures well above 100 degrees, and that heat cooks flex duct and shrinks the tape and mastic holding joints together. Ductwork that lives in a hot attic fails faster than ductwork in a conditioned space, so attic runs are where most of our repair work happens and where a lot of the cost sits.
- Access. A run you can reach by stepping into the attic costs less than one that’s boxed in behind drywall, buried under insulation, or routed through a tight chase. Access is the single biggest labor variable on a duct repair estimate.
- Number of leaks and joints. One disconnected collar is a small job. Twenty leaking seams across a full trunk line is a different day. We price by the number of repair points we actually find, not a flat call-out.
- Flex versus rigid duct. Rigid sheet-metal duct can often be sealed and kept. Flex duct that’s torn or crushed gets replaced in sections, and the material cost is higher than mastic and tape on a solid joint.
- Whether you need cleaning too. If your system has been pulling attic dust and construction debris through leaks for a while, repair plus a deep clean with our Rotobrush and Nikro equipment is the correct fix. Cleaning alone re-dirties; repair alone leaves dirt inside.
- System size and layout. A single-story home with a short trunk costs less to seal than a two-story with long runs and multiple branches, mostly because there’s more duct to inspect and seal.
How to Save on Duct Repair & Sealing
Get the repair done before the leak gets worse. A small disconnected joint that’s pulling attic air and dust into your system is a $285-$520 fix. Left alone through a summer, the moisture and debris load can lead to a crushed section or a failed collar that runs $400-$780 to replace. Catching it early is the cheapest move you can make.
Ask for repair and cleaning to be quoted together. When we’re already in the attic sealing joints, running a full clean in the same visit is often less than booking two separate appointments, and it means you’re not pulling fresh dust through freshly sealed ductwork. We’ll break out both line items so you can see exactly what the cleaning adds.
Get several estimates and compare the equipment and process, not just the bottom number. A duct cleaning quote that doesn’t mention what brush or extraction system is used is a red flag. Ask whether they use a Rotobrush-style brush agitation system and HEPA extraction like Nikro, and whether they can perform air duct repair – most duct cleaners can’t, and that gap means they’ll clean over a problem instead of fixing it. Our three services (cleaning, repair, and dryer vent) mean one provider can handle the whole system.
Don’t skip the dryer vent while you’re at it. It’s a separate fire-safety service, typically $150-$320, and a clogged dryer vent is a real fire hazard, not a minor nuisance. It’s not an upsell – it’s the same safety mindset behind fixing a leaking duct before it fails.
The estimate itself is free. Call (877) 212-3243 and we’ll book a time to look at the system and give you a written number. We answer 24/7, and dispatch runs 7am-7pm, Sunday through Friday. For a full look at what we do in Duct Cleaning Antioch, start there.
Does Duct Repair Cost More Than Replacement in Antioch?
Usually not. Repair and sealing costs less than replacing ductwork in most Antioch homes, unless the duct system is failing in multiple places at once or is made of old, brittle material that won’t hold a seal. A few isolated leaks run $285-$850 to repair. Replacing an entire duct system is a much larger project that we’d only recommend when repair genuinely won’t hold. Get a written estimate on repair first; it’s almost always the sensible starting point.
Can You Repair Ducts the Same Day in Antioch?
Often, yes. Most single-joint and branch-run repairs can be handled in one visit with same-day service, especially when the leaking section is accessible in the attic. Larger trunk-line rebuilds or full-system jobs get scheduled, and fast dispatch runs from 7am to 7pm Sunday through Friday. Call (877) 212-3243 with a description of what you’re seeing and we’ll tell you what’s realistic for the day.
Is Duct Sealing Worth It in Antioch’s Summer Heat?
Yes, and the summer heat is exactly why. When ductwork in a hot Antioch attic leaks, the system pulls in attic air that’s already well over 100 degrees, plus the dust and insulation fibers riding along with it. Sealing those leaks keeps the cooled air in the duct where it belongs and keeps attic air out of your living space. The cost of sealing, typically $450-$850 for widespread leaks, is small compared to the waste of a system that’s fighting attic heat all summer. Check the Antioch service area page for more on how we work here.
What Does Duct Repair Actually Involve?
We find the problem, clean the area around it, and seal or replace the failing section. A typical job means inspecting the runs from the air handler out through the attic, identifying disconnected collars, torn flex, crushed sections, and open seams, then sealing those points with mastic and approved tape, or replacing the damaged section. When job conditions warrant, we pull in Abatement Technologies negative-air filtration to keep dust contained during the work, and we finish with a full clean using the Rotobrush and Nikro systems. If you also want to improve filtration and air quality after the repair, we work with the Honeywell and Aprilaire lines and can recommend a filter upgrade that fits your system.
Do I Need Cleaning or Repair First?
Repair first if the system is leaking. Cleaning a duct system that’s still open to the attic means the next time the system runs, it pulls attic dust right back in. The order that works is: find and seal the leaks, then clean the whole system, then consider filtration upgrades. We’re one of the few residential providers that also performs air duct repair, so we can do all of it without sending you to a second company that only cleans.
FAQs – Duct Repair & Sealing Cost
How much does duct repair and sealing cost in Antioch?
Most duct repair and sealing in Antioch falls between $285 and $1,450, depending on how many leaks there are, how accessible the runs are, and whether flex duct needs replacing. A single joint runs $185-$340; a widespread sealing job or partial rebuild runs $750-$1,450. Call (877) 212-3243 for a free estimate, and the written quote sets the final price.
Is it cheaper to repair or replace ductwork?
Repair is normally cheaper than replacing the whole system. Sealing isolated leaks at $285-$850 beats a full replacement in most homes, and it’s the right first step unless the ductwork is failing everywhere at once. We’ll give you a straight answer on which makes sense after we’ve seen the system. Call (877) 212-3243 for a free estimate.
Can you seal duct leaks I can’t reach?
Often, yes. Sealing a joint means getting to it, and most attic duct runs are reachable with the right approach even when they’re buried under insulation or tucked behind a knee wall. Truly inaccessible sections may need a different repair strategy, and we’ll explain what’s possible in the estimate. Call (877) 212-3243 to book a look.
How much does it cost to clean and repair ducts together in Antioch?
A combined repair-plus-clean job typically runs $650-$1,600 for most Antioch homes, since we bundle the repair line item with the full Rotobrush brush, Nikro HEPA, and Abatement Technologies filtration cleaning in one visit. Doing both together is usually less than two separate appointments. Call (877) 212-3243 for your free estimate.
Can you come today?
Same-day service is often possible for accessible single-joint and branch-run repairs in Antioch. Fast dispatch runs 7am-7pm, Sunday through Friday, and we’re closed Saturday. Call (877) 212-3243 to tell us what you’re seeing and get a free estimate. We answer 24/7.
Do you repair ductwork after a renovation?
Yes. Post-renovation homes often have construction dust pulled into the system through leaks, plus ductwork that got knocked loose during the work. The right sequence is to seal and repair first, then clean the whole system with HEPA extraction so the dust doesn’t come back. A typical repair-and-clean job in that situation runs $650-$1,600. Call (877) 212-3243 for a free estimate.
Written by the team at Duct Cleaning Antioch.
Pricing reflects the Antioch market as of 2026. Duct Cleaning Antioch offers free estimates – call (877) 212-3243.
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."
- Colleen Pruitt"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Ruben Mendoza"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Ernesto Torres