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 Hillsboro?
Duct repair and sealing in Hillsboro typically costs $180 to $340 for a single small leak repair, $350 to $750 for sealing a whole system, and $600 to $1,800 for replacing badly damaged runs of flex or sheet-metal duct. Most homes we look at fall in the middle of that range: a few disconnected joints, some crushed flex, and a run of leaking seams that never got sealed when the system went in. The written estimate you get before any work starts is the final price.
Duct Cleaning Hillsboro handles repair as a standalone service, so a compromised section gets fixed on the same visit as a cleaning instead of being flagged and left for a separate contractor. That matters in a market where a lot of the housing stock has ductwork that has been added to, patched, and rerouted over the years.
Key Takeaways
- Single leak or joint reconnection: $180 to $340.
- Whole-system sealing (mastic and mesh, all accessible seams): $350 to $750.
- Duct section replacement: $220 to $480 per run, or $600 to $1,800 for multiple runs.
- Insulated flex replacement and re-routing in tight crawl spaces costs more than open basement work.
- Every job starts with a free estimate and a written, itemized price.
Duct Repair & Sealing Cost Breakdown (2026)
The table below shows what the work runs in the Hillsboro market. Ranges assume a typical single-family home with usable access to most of the ductwork. Crawl space and attic work runs higher, and we explain why below the table.
| Repair type | Typical 2026 range | What it covers |
|---|---|---|
| Single leak or joint repair | $180 – $340 | One disconnected joint, torn flex, or failed taped seam |
| Sealing a whole system | $350 – $750 | Mastic and mesh on every accessible seam, joint and takeoff |
| Sealing the trunk and plenum | $250 – $520 | The larger fabricated runs where the biggest leaks usually sit |
| Replacing one duct run | $220 – $480 | New insulated flex or fabricated metal, taped and supported |
| Multiple runs or a full branch replacement | $600 – $1,800 | Crushed, water-damaged or pest-damaged sections across several rooms |
| Return-air duct rebuild | $400 – $950 | Oversized or undersized returns rebuilt to move the right air volume |
| Combined cleaning and repair | $420 – $1,100 | Full duct cleaning Hillsboro job plus sealing or a repair on the same visit |
Prices run higher when access is poor. Most Hillsboro attics and crawl spaces are tight, and a lot of the ductwork was installed in stages as rooms were added or finished. A crew that can’t stand up in the space works slower, and slower work costs more. Long runs are also more expensive than short ones, because the labor and material both scale with distance. Crushed flex that needs replacing behind drywall adds a demo step, and that’s the single biggest swing in an estimate.
Prices run lower when the work is concentrated. Sealing fifteen joints in an open attic costs less than chasing three leaks spread across a two-story house, even though the latter sounds simpler. If you’ve already booked a cleaning, folding a repair into the same visit usually saves you the cost of a second trip and a second setup.
What Affects Duct Repair & Sealing Pricing in Hillsboro
Five things move the number more than anything else. None of them are negotiable, and any honest estimate will account for all of them.
- Access to the ductwork. Cramped crawl spaces, low attics, and ductwork buried under blown insulation all cost more labor than an exposed basement run.
- Material type. Flex duct is cheaper to replace than fabricated sheet metal, but it also fails more often, so a mix of both in one system means a wider estimate range.
- How much is damaged versus just leaking. A leaking seam needs mastic, tape and mesh. A disintegrated run needs replacement. The two get priced very differently.
- Number of rooms and zones. A house with ten supply runs and two returns has more surface area to check and seal than a three-run system, and the estimate reflects that.
- Whether a cleaning is needed first. Sealing over a contaminated system traps that contamination, so we won’t do it without cleaning first. Combining both is priced as one job.
- Cause of the damage. Rodent intrusion, moisture, and crushed runs from attic traffic all need a fix that lasts. A sealing-only patch over rodent damage lets the problem return.
One local factor worth naming: this region’s wet winters and long damp shoulder seasons take a toll on flex duct in crawl spaces and on tape-joint adhesive in attics. Seams that were taped ten years ago often lift when the tape loses grip in the cold, and that lift is the most common cause of the leaks we seal.
How Duct Repair & Sealing Works
We lead with a two-step method: contact cleaning, then HEPA-rated extraction. Where repair is involved, we inspect the system first, document what’s failing, and then fix it before the cleaning brings contaminated air into the repair. Repairing a broken joint before a cleaning means we’re not pulling air through a gap we haven’t closed.
Our technicians run a professional-grade Rotobrush rotary contact-cleaning system to agitate debris off the duct walls, and pair it with Nikro HEPA-rated vacuum extraction so loosened debris is captured, not blown back through the supply registers. On jobs with heavier contamination – rodent droppings, visible buildup, musty odors – we bring in Abatement Technologies air scrubbing and containment equipment. That’s the same category of gear used in remediation work, and it’s a higher standard of contamination control than a standard residential vacuum.
Sealing is done with mastic and mesh on accessible seams, joints, and takeoffs, never just tape. Tape fails; mastic doesn’t. Where the duct itself is compromised – crushed flex, torn connections, water damage – we replace the damaged run rather than patch over it. We repair what we find, and the equipment we run means the repair and the cleaning happen on the same visit.
After the work, we check the outcome. Airflow you can measure is the point: registers that were weak should move air, filter life should stop dropping, and the musty smell that came from a leaking return should be gone. Clean ducts, confirmed.
Can You Repair Ducts and Clean Them at the Same Time?
Yes. Duct repair and Hillsboro duct cleaning are typically done together on one visit, and doing them together is both cheaper and more effective than splitting them. Cleaning first stirs up everything in the system; repairing first means the cleaned air stays inside closed seams. We sequence it so nothing gets stirred up and then allowed to leak back into the house.
Because we offer repair as a standalone service, a cleaning-only company would have to refer the repair elsewhere or leave it for later. That means a second appointment, a second trip, and often a second chance for the leak to sit untouched while contaminants move through it. You’ll get one estimate that covers both, one visit, and a system that’s sealed at the end instead of just brushed.
If the damage is significant, we’ll tell you upfront. A very badly compromised system may need a full branch replacement before cleaning is worth doing, and we’d rather quote that honestly than clean a system that’s already leaking half its air into the attic.
How to Save on Duct Repair & Sealing
There’s no discount list here. What there is: a few honest ways to keep the number down.
- Combine cleaning and repair into one visit. Trip setup, containment, and equipment mobilization are the same whether we’re doing one or both. Combining saves on the second trip.
- Clear access before the technician arrives. Boxes piled at the attic hatch and insulation rolled up over the trunk add labor time. An open path to the equipment keeps the estimate honest.
- Fix leaks before they become replacements. A $220 joint repair today is cheaper than the $480 run replacement it becomes after a year of an untaped seam pulling in moisture.
- Ask whether sealing alone will do it. Not every system needs new duct. Whole-system sealing is often far cheaper than replacement and fixes the majority of leak-related airflow problems.
- Get the written, itemized estimate first. We put the line items on paper before we touch the system, so you can compare like for like and decide what’s worth doing now versus later.
We answer 24/7 on the phone line, and estimates are free. If you’re not sure whether you need repair, sealing, cleaning, or a combination, we’ll walk the system, show you the problem, and quote it before anything starts. Call (866) 810-7564. Fast dispatch from 7am to 7pm, Sunday through Friday.
Filtration Upgrades That Pair With Sealing
Sealed ductwork and a properly sized filter work together. If you’re already sealing the system, it’s worth asking about a filtration upgrade at the same point of service, because a sealed system makes a higher-efficiency filter more effective. We work with Honeywell and Aprilaire filtration and humidity-control products, and those brands are familiar enough that our technicians can advise on what fits your existing setup without trial and error.
That’s a conversation, not a requirement. Sealing alone is a legitimate stand-alone fix. But when you’ve spent money making the duct airtight, upgrading from a cheap 1-inch filter to a properly sized media cabinet often returns more on the investment than the duct work itself.
When Duct Repair & Sealing Is Worth It
Duct repair and sealing is worth it when your energy bills have climbed without explanation, when registers in some rooms are noticeably weaker than others, or when you can see separated joints, torn flex, or tape peeling off the ductwork. It’s also worth it after a cleaning reveals damage that was hidden under years of buildup.
It’s less urgent when the system is already sealed and the only symptom is a single cold room that may be a balancing or insulation issue. And it’s premature if the real problem is a failing furnace or a leaking coil, which should be fixed first. Our job is to tell you which category you’re in; the estimate is free either way.
What’s Included in a Duct Repair & Sealing Estimate
A written estimate from us covers the repair scope, the sealing scope, the cleaning scope if you’re doing one, and the materials. It doesn’t contain surprise line items added after the work starts. Our technicians have up to 9 years of experience, and they’ll walk you through what they found and why each item is on the estimate.
- Inspection of accessible ductwork, including joints, takeoffs, and flex connections
- Written line items for repair, sealing, cleaning, or all three
- Material specification (mastic, mesh, flex type, metal gauge where relevant)
- The exact scope of what will be sealed versus replaced
- A clear statement of what won’t be touched and why
We’re licensed and insured, and we don’t quote over the phone what we haven’t seen in person. If you’ve had a low-priced coupon estimate that ballooned after the technician arrived, that’s exactly what our written, itemized process is designed to avoid.
Same-Day Repair
When a duct has failed in a way that’s affecting your air quality or comfort, we book same-day where the schedule allows. We answer 24/7. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. We’re closed on Saturday, but if a problem comes up then, leaving a message gets you booked into Sunday.
What happens when you call: we’ll ask what you’ve noticed (weak airflow, musty smell, high bills, visible damage) and set a time for a free estimate. The technician inspects the system, quotes the job, and if you approve, the work can often proceed on the same visit. Fast dispatch from 7am to 7pm on the days we’re in the field.
Is Duct Sealing Cheaper Than Duct Replacement?
Yes. Whole-system sealing typically runs $350 to $750, while replacing a damaged branch can run $600 to $1,800 and a rebuild of multiple runs can go higher. Sealing is almost always the first move, and it’s the right move for the majority of leak-related problems. Call (866) 810-7564 for a free estimate and we’ll tell you which category your system is in.
How Much Does Duct Repair Cost if Only One Section Is Damaged?
A single damaged section typically costs $220 to $480 to replace, and a single joint or leak repair runs $180 to $340. The price depends on whether we’re reconnecting, sealing, or replacing, and on what material was there before. Call (866) 810-7564 for an exact quote; the estimate is free.
Does Duct Sealing Really Lower Energy Bills in Hillsboro?
It can, and the effect is measurable when the leaks are real. A duct system leaking 20 to 30 percent of its air into an attic or crawl space is heating or cooling air that never reaches a room, so the furnace runs longer for the same comfort. Sealing those seams recovers that air. The exact savings depend on your system and how much it was leaking; we check airflow before and after so you can see it.
Can You Seal Ducts Without Cleaning Them First?
No, and we won’t. Sealing over a contaminated system traps debris, dust, and any rodent contamination inside the ductwork where it stays for the life of the system. We clean first, then seal, and if both are needed we quote them together as one job so you don’t pay for a second trip. Call (866) 810-7564 to set up a free estimate.
Do You Repair the Plastic or Flex Ducts in Older Hillsboro Homes?
Yes. Flex duct replacement is $220 to $480 per run, and that’s often the right fix when the original flex has collapsed, torn, or come loose at the collar. Many attics and crawl spaces in Hillsboro’s older homes have ductwork that was added in stages over the years, and the joints at those transition points are where we find the most leaks.
Do I Need a Permit for Duct Repair in Hillsboro?
Most simple duct repairs don’t require a permit, but any work that touches the mechanical system or alters the duct layout may. Rather than guess, ask the City of Hillsboro’s building department directly; they’ll tell you what applies to your scope. We can’t speak for them, and we won’t promise a permit you might not need.
Why Choose Duct Cleaning Hillsboro for Duct Repair?
Because we bring real equipment and repair it in-house rather than hand it off. The Rotobrush contact-cleaning system, Nikro HEPA extraction, and Abatement Technologies containment gear are the same tier of equipment you’d see on a remediation job, not the entry-level blower a coupon service brings. That combination lets us clean, seal, and repair on the same visit and check the result before we leave.
We work with Honeywell and Aprilaire filtration systems, so we can help you pair a sealed duct system with a filtration upgrade at the point of service. And we tell you what we find, in writing, before we start. If you’re comparing estimates, we welcome it; the written scope on ours is what makes the comparison fair.
For a free estimate, call (866) 810-7564. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Duct Cleaning Hillsboro.
Pricing reflects the Hillsboro market as of 2026. Duct Cleaning Hillsboro offers free estimates – call (866) 810-7564.
What Our Customers Say
"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Michelle Gallagher"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."
- Holly Barrett"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."
- Chris Novak