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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After
Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Aliso Viejo?
Duct repair and sealing in Aliso Viejo typically runs $350 to $1,800, with most single-family homes landing between $550 and $1,100 for a combination of sealing, patching, and reconnecting loose joints. Small localized fixes, like re-taping a handful of accessible plenum connections, can come in under $400. Larger jobs that involve replacing crushed flex runs, sealing a disconnected trunk in the attic, or restoring ductwork in a two-story home with a tight chase often push past $1,500. Every job here is priced by a written estimate, so the number you see on paper is the number you pay.
One point worth stating plainly before we get into line items: clean ducts are only half the job, and intact ducts are the other half. A system leaking 20% of its conditioned air into an Aliso Viejo attic is doing the work twice and cooling the house zero times. If you’re here because you suspect your ductwork is leaking, torn, or disconnected, the ranges below give you a real starting point for the local market as of 2026.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s how individual line items shake out in the Aliso Viejo market. Most homes need two or three of these, not all of them.
| Service | Typical Range |
|---|---|
| Re-taping and re-sealing accessible joints (per run) | $45 – $95 |
| Mastic sealing on metal trunk lines | $200 – $550 |
| Sealing an accessible plenum and air handler box | $150 – $350 |
| Replacing a torn or crushed flex duct run | $150 – $400 per run |
| Reconnecting a separated or disconnected joint | $120 – $300 |
| Full-home duct sealing (smaller single-story) | $550 – $1,100 |
| Full-home sealing with repair (two-story or sprawling plan) | $1,100 – $1,800 |
| Replacing a damaged section of rigid trunk | $400 – $900 |
| Register and boot sealing (per register) | $25 – $60 |
The biggest swing in these numbers is access. Ductwork in an Aliso Viejo attic is usually reachable through a scuttle, and if it’s a tight crawl-through space on a hot day, that adds time and cost. Ductwork buried under blown insulation, wrapped around a tight chase, or run through a soffit packed with other utilities is slower to work on. Second-story jobs run higher than single-story for the same reason. If a section can’t be reached safely, we say so on the written estimate rather than quoting something we can’t deliver.
Where we do the work matters too. Air duct repair sits alongside air duct cleaning and dryer vent cleaning in our service lineup because the three belong together. If a technician finds a broken run while sealing the trunk, the fix happens in the same visit instead of a second trip. That’s a real cost saver versus calling two different companies.
What Affects Duct Repair & Sealing Pricing in Aliso Viejo
Aliso Viejo has its own set of factors that change the number. None of them are unique to this city, but they come up here more than people expect.
- Attic heat in the Aliso Viejo climate. Interior valleys here get hot in the summer, and that heat is hard on duct tape, mastic, and flex duct. Adhesive tape that’s been through three or four summers of 100-degree attic temps dries out, cracks, and peels. Duct repair jobs in this corner of Orange County often involve more re-taping than you’d see in a cooler climate, because the original installation materials have simply aged out.
- Housing stock and construction era. Aliso Viejo was built out mostly in the 1980s through the early 2000s. Homes from the earlier end of that range often have flex duct that’s been in place for decades, plus original taped joints that have been waiting to fail. Homes with two-story floor plans and ductwork in tight chases cost more to reach.
- Access and attic layout. A single-story ranch with a low-pitch roof and a wide-open attic is a straightforward job. A two-story with a steep roof and duct runs snaking through crisscrossed trusses is not. We don’t charge extra for hard work, but we do quote it honestly.
- Number of accessible registers and runs. A four-bedroom home has 10 to 15 supply runs to inspect and seal, versus six or seven in a condo. More runs, more time.
- Whether you pair repair with cleaning. A technician inspecting ductwork usually sees debris and contaminant buildup at the same time. Cleaning first, then sealing, then a fresh air filter is one service visit and one written estimate. Repairing a dirty system just seals dirt in.
- IAQ upgrades after the repair. If the goal is healthier air rather than just stopping a leak, upgrading to a better filter or adding a whole-home filtration step changes the scope. Honeywell and Aprilaire products are part of that conversation, and we’ll price them separately so you can decide.
How to Save on Duct Repair & Sealing
Pricing on duct work follows process, and the process follows what a technician can actually find. Saving money here comes down to doing the right things in the right order.
- Get the estimate in writing first. A written estimate puts the scope in front of you, and you can compare line items instead of a single lump sum. We provide free estimates because we’d rather you understand what you’re paying for. Call (833) 693-2761 to schedule one.
- Bundle the inspection with cleaning. Duct repair done alongside cleaning costs less than a standalone repair visit, because the technician is already in the attic, already has containment set up, and already has the right tools in hand. It’s also the correct order of operations: clean first, then seal.
- Address the visible leaks before the hidden ones. If a joint is loose at a register, that’s a $25 to $60 fix. If a plenum is open, that’s $150 to $350. The bigger jobs can wait if the system is running fine and the leaks you can see are handled.
- Know when repair beats replacement. Ductwork that’s still structurally sound and just losing air at the joints is a repair. Duct that’s crushed, saturated, or grown brittle from decades of heat is a replacement. If you’re staring down four or five replacement runs in a row, the total is closer to a partial re-duct, and the math changes. A technician on site can tell you which side of that line you’re on.
- Fix the seal before the filter. Upgrading filtration on a leaking system wastes money. Filter upgrades work much better after the ductwork is sealed, because the air you’re filtering isn’t escaping into the attic. If you already have a Honeywell or Aprilaire filter in mind, do the sealing first.
- Ask about Guardsman finishing treatment. A protective treatment after cleaning and sealing keeps the interior surface cleaner between service visits. It’s a small add-on, not a headline cost, and only makes sense after the ducts are intact.
A word about how we get the work done: purpose-built equipment does better work than improvised gear. Our technicians run Rotobrush rotary brush systems and Nikro HEPA-rated vacuums, not shop vacuums, and they set up Abatement Technologies containment and negative-air units so dislodged contaminants are captured, not redistributed through the home. That’s the same standard we apply whether the visit is cleaning or repair. It’s a different process from a coupon duct cleaner who shows up with a hose and a promise.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Aliso Viejo?
Duct sealing in Aliso Viejo typically runs $550 to $1,100 for a smaller single-story home and $1,100 to $1,800 for a larger two-story or sprawling floor plan, including repair where needed. Individual joint re-sealing is much cheaper at $45 to $95 per run. The written estimate sets the final price. Call (833) 693-2761 for a free quote.
Is it cheaper to repair or replace ductwork?
Repair is cheaper in most cases. A typical repair job in Aliso Viejo runs $350 to $1,800, while replacing entire duct systems costs substantially more when you factor in materials and labor across the whole home. Repair wins whenever the ductwork is structurally sound and losing air only at joints, plenums, and connections. Replacement starts making financial sense when you’re looking at four or more failed runs, or duct that’s crushed beyond the point where a patch is honest.
How much does duct cleaning cost in Aliso Viejo?
Air duct cleaning in Aliso Viejo generally falls in the $300 to $700 range for a typical single-family home, depending on the number of runs and the level of buildup. Pairing cleaning with repair is cost-effective because the technician is already in the attic. Our duct cleaning Aliso Viejo page has the full breakdown. Call (833) 693-2761 for an estimate that covers both.
Can you come out today?
Same-day service is often possible, and we dispatch crews with fast dispatch from 7am to 7pm, Sunday through Friday. We answer the phone 24/7 – call outside dispatch hours and we’ll book you into the next opening. Call (833) 693-2761 for today’s availability and a free estimate.
Do I really need a professional, or is duct tape enough?
Professional. Duct tape is not rated for ductwork, and in an Aliso Viejo attic, where summer heat bakes the tape until the adhesive fails, it peels off within a season or two. What actually holds a seal is mastic plus a properly installed duct system, done by someone who has seen what a failed joint looks like. Our technicians seal with mastic on accessible joints, reconnect separated connections, and replace crushed runs when the flex duct can’t serve its purpose. That’s a $45 to $95 fix per joint if you call us, versus a repair the following year if you don’t. Call (833) 693-2761 to book a free estimate.
When to Call a Duct Repair Specialist
Some signs in a home point straight at ductwork: rooms that never cool evenly, a whistling sound at a register, dust settling on furniture right after cleaning, or an attic that feels hot while the house struggles. Any one of these is worth an inspection. Several of them together usually means a real leak.
What separates repair from cleaning in our shop is that the work is done by the same people, with the same equipment, on the same visit. Three services: air duct cleaning, dryer vent cleaning, and air duct repair. That’s it. We’re not pulling a bait-and-switch on HVAC installation or trying to sell you mold remediation. Repairs, sealing, patching, restoring duct integrity: that’s the scope.
If you want to know what repair looks like in context, the Aliso Viejo local service page has the neighborhood view of how we work here and what a typical job involves. And if you’ve just moved into an older Aliso Viejo home with ductwork from the 1980s or 90s, it’s worth a look before the next cooling season starts.
One safety note: ductwork often lives near electrical, gas, and refrigerant lines. Cutting, patching, or repositioning ducts without understanding what’s around them is a real risk. Our technicians work trained and contained, and we don’t advise homeowners to crawl into a hot attic to re-tape a joint themselves. The job is a professional visit for a reason.
Get a Free Duct Repair & Sealing Estimate in Aliso Viejo
If your ductwork is losing air, sealed joints have failed, or a room never cools evenly, the right next step is a written estimate. Our technicians use professional-grade equipment and containment so the work is thorough and clean, and they’ll show you what needs repair and why. Pricing reflects the Aliso Viejo market as of 2026. Duct Cleaning Aliso Viejo offers free estimates, and every job is priced per job by the written estimate. Call (833) 693-2761. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Pricing reflects the Aliso Viejo market as of 2026. Duct Cleaning Aliso Viejo offers free estimates – call (833) 693-2761.
Written by the team at Duct Cleaning Aliso Viejo, serving Aliso Viejo since 2016.
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."
- Matt Thompson"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Allen Chen"Did the dryer vent while they were here for a small add on price. The dryer now finishes a load in one cycle instead of two."
- Kristen Hoffman