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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Before
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Before
AfterHow Much Does Duct Repair & Sealing Cost in Arlington?
Duct repair and sealing in Arlington typically costs between $350 and $1,200 for most homes, with the average project landing around $600 to $850. Small sealing jobs on a handful of accessible joints can run as low as $250 to $400, while larger repairs involving crushed flex runs, disconnected plenums, or sealing an entire attic system can reach $1,500 or more. The written estimate sets the final price after we see the layout and the condition of the ductwork.
Arlington homes are a mixed bag, and that mix shows up in the price. A 1940s Cape Cod in Ashton Heights with a retrofitted system has very different ductwork than a newer townhome near Ballston Quarter, and the two jobs rarely cost the same. What follows is a straight breakdown of what drives the number up or down in this county, so you can walk into an estimate knowing what you’re looking at.
Key Takeaways
- Most Arlington duct repair and sealing projects fall in the $350 to $1,200 range; the estimate is free and the price is set per job in writing.
- Leaky joints and seams are the cheapest fixes. Crushed flex duct, disconnected trunk lines, and attic runs in tight spaces cost the most.
- We use Rotobrush contact-cleaning systems and Nikro HEPA-rated containment so repair work doesn’t spread dust through the house.
- Our technicians have up to 11 years of experience, and we close the loop from diagnosis to repair rather than handing you a report and walking away.
- Call (844) 932-0326 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s how the line items stack up for Arlington-area homes. These are estimated ranges, not quotes. Every job gets priced after we see the system.
| Service | Typical Estimated Cost | What It Covers |
|---|---|---|
| Sealing accessible joints and seams | $250 – $500 | Mastic or foil-tape sealing on a handful of reachable connections, usually in a basement or crawlspace |
| Full visible-run duct sealing | $500 – $950 | Sealing all reachable joints, boots, and plenum connections across the system |
| Repairing disconnected or crushed flex duct | $300 – $700 | Reconnecting runs, replacing crushed sections, restoring airflow to a room |
| Rigid duct repair or section replacement | $600 – $1,400 | Patching or replacing damaged sections of metal trunk or branch duct |
| Duct cleaning before or after repair | $400 – $800 | Cleaning debris and construction dust from the system using Rotobrush and Nikro equipment |
| Attic or crawlspace duct repair | $700 – $1,500+ | Hard-to-reach runs in unconditioned space, including insulation handling and workspace setup |
What pushes you toward the top of that table? Access, mostly. Ductwork buried behind finished drywall or in a cramped Arlington attic adds labor hours. So does the length of the run and the number of separate problems we find once we’re inside the system. What pulls the number down? A system where the leaks are all in obvious, easy-to-reach spots and the duct itself is sound. We diagnose the whole system first, so we’re not sealing joints on a run that’s crushed three feet down the line.
What Affects Duct Repair & Sealing Pricing in Arlington
- The age and style of the housing stock. Arlington has a lot of older homes alongside newer infill construction close to the Metro corridors. Older homes often have retrofitted ductwork that was never sealed well to begin with, which means more joints to address. Newer systems tend to have fewer leaks but can use flexible duct that compresses or tears.
- Attic and crawlspace access. Ranch and Cape Cod layouts in neighborhoods like Cherrydale and Lyon Village frequently run ductwork through attic spaces that were never designed for easy access. Tight quarters and added insulation handling both add labor time, and that’s the single biggest reason an attic job costs more than a basement one.
- How far debris has spread. A failing connection doesn’t just leak air. It pulls dust, debris, and allergens back into the system and into the rooms your family uses. If a repair uncovers a system full of buildup, cleaning gets folded into the job, and that raises the total.
- Number of problem areas. One crushed run near a register costs far less than three disconnected branches plus a leaking plenum. The more separate repair points, the more time and material.
- Filtration and IAQ setup. If your home runs a Honeywell or Aprilaire filtration system, sealing needs to work around that equipment, not fight it. We’re familiar with those systems, so the seal still holds and the filter still functions. Poorly planned work here can undermine the filtration you already paid for.
- Whether you combine repair with cleaning or dryer vent service. Bundling a full cleaning with the repair usually costs less than separate visits, because the equipment and containment are already set up.
Because pricing is set per job by written estimate, there’s no guesswork on your end. We look at the system, tell you what we find, and put it in writing before any work begins.
What’s Actually Causing Your Duct Problem?
Before the price makes sense, it helps to know what’s broken. Duct problems in Arlington homes usually fall into a few categories, and they show up in predictable ways: rooms that won’t hold temperature, higher heating and cooling bills than the house should have, whistling or hissing at the registers, or a faint dusty smell long after the system shut off.
The common causes:
- Leaky joints and seams where sections of duct connect. This is the most frequent issue in older homes. Air leaks into the attic or wall cavity instead of reaching the room, and the system works harder to compensate.
- Disconnected or crushed flexible duct. Flex duct is easy to install and easy to damage. It can kink, tear, or pull apart at the connection point, cutting off airflow to one or more rooms.
- Deteriorating tape and mastic. Older sealing materials crack and peel with age and temperature swings, reopening joints that were once sealed.
- Debris and dust buildup that restricts airflow and gets pushed into your living spaces through the leaks.
That’s why a full-system approach matters. We diagnose the whole system, repair what’s broken, and confirm the seal holds. A cleaning alone won’t fix a crushed run, and a repair alone won’t clear out the debris a leak let in.
How to Save on Duct Repair & Sealing
The most reliable way to save is to fix the small problems before they turn into big ones. A leaky joint that gets sealed for $250 today can turn into a wet, collapsed section that costs four times that to fix later. Short of that, here’s what actually helps:
- Get the free estimate first. Call (844) 932-0326 and we’ll look at the system before quoting. You’ll know the number before work starts, which means no surprises.
- Combine services when the timing works. Doing a repair and a full cleaning together usually costs less than two separate visits, and the Rotobrush and Nikro setup is already in place.
- Point out the problem rooms. If you can tell us exactly which rooms are too hot or too cold, that’s a head start. We still diagnose the whole system, but it helps us focus.
- Don’t wait until the leak shows up in your bill. The most expensive duct problems are the ones that ran for a while. Fixing a small issue early is almost always the cheaper route.
- Ask about dryer vent cleaning at the same time. It’s a fire-safety service, not a commodity add-on. If your dryer vent is overdue, adding it to a duct visit cuts down on separate appointments.
As a full-system specialist, we don’t do HVAC installation, mold remediation, or general HVAC repair. We focus on duct cleaning, dryer vent cleaning, and duct repair, so the diagnosis is sharp and the fix is what we do every day. That focus is where the value sits.
Why Professional Equipment Affects the Price
A lower bid usually means less equipment and less containment, and that shows up over time. We use Rotobrush contact-cleaning systems, the kind of equipment used on commercial and industrial duct work, applied to residential and light-commercial systems. We also use Nikro HEPA-rated systems for containment and filtration during the work, which keeps dust from spreading through the house while we’re opening up ductwork.
That equipment matters most during repair, not just cleaning. When we open a duct to fix a connection, containment keeps the rest of the home clean. When the job is done, the system is sealed and cleared, not just patched. This is the reason we can move from diagnosis to repair in one visit rather than reporting the problem and leaving you to find someone else to fix it.
It’s the same reasoning behind our familiarity with IAQ brands. We work with systems that include Honeywell, Aprilaire, Abatement Technologies, and Guardsman components, so filtration and ductwork stay compatible after the seal is repaired. If your system runs one of those, the repair should account for it.
When Duct Repair Is Worth It (and When It Isn’t)
Duct repair is worth it when the duct system is sound but the connections or sections are failing. Crushed flex runs, disconnected branches, peeled tape, and leaking plenums all fall into that category. Sealing and repairing those restores airflow to the rooms that were starved, and your system stops working harder than it needs to.
It’s less clear-cut when the ductwork is failing in many places at once, or when a system was never designed well to begin with. In those cases, a repair still fixes what’s in front of us, but it’s worth knowing the limits going in. We tell you what we find and what will and won’t help, then you decide. No pressure, and no upselling a service we don’t offer.
One more thing worth knowing: duct repair and sealing isn’t a job for a homeowner with a roll of tape. Poorly done sealing can make airflow problems worse by blocking a run or creating a restriction the system can’t handle. A trained professional diagnoses the system as a whole before touching a single joint. This is work that rewards getting it right the first time.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Arlington?
Most Arlington duct sealing jobs run between $250 and $950 depending on how much of the system is accessible and how many joints need sealing. Full-system sealing on an older home with retrofitted ductwork usually lands in the upper half of that range. Call (844) 932-0326 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Is it cheaper to repair a duct leak or replace the ductwork?
Repairing a duct leak is almost always cheaper than replacing ductwork. Sealing accessible joints typically costs a few hundred dollars, while replacing a whole run can cost well over $1,000. Repair only makes sense when the duct itself is sound. If a section has collapsed or been crushed, that part gets replaced, not sealed. We diagnose the system first, so the recommendation fits the condition.
Why does attic duct repair cost more in Arlington?
Attic duct repair in Arlington usually costs $700 to $1,500 or more, because attic access adds labor. Many older Arlington homes, especially in neighborhoods like Cherrydale and Lyon Village, have ductwork in tight attic spaces that were never designed for easy access. Insulation handling, limited room to work, and extra safety steps around containment all add time. Our Nikro HEPA-rated containment setup is part of what keeps that work clean.
Can I tell if my ducts are leaking without an inspection?
Sometimes you can spot the signs. Rooms that never reach the set temperature, whistling or hissing at the registers, higher utility bills than the house should have, and a dusty smell after the system runs are all clues. But leaks are often hidden in the attic or behind walls. A professional diagnosis finds what you can’t see. Call (844) 932-0326 for a free estimate if you suspect a leak.
Do you clean the ducts as part of a repair, or is that a separate cost?
It depends on what we find. If a leak has pulled dust and debris into the system, cleaning becomes part of the repair, usually $400 to $800, and doing it together costs less than two separate visits. If the system is clean, repair alone may be all you need. We look at the whole system before quoting, so the estimate covers what’s actually required.
Duct repair and sealing in Arlington comes down to the condition of the system and how much of it we can reach. Most homes land between $350 and $1,200, the estimate is free, and the written price is the final price. If your ducts are leaking, a room won’t hold temperature, or you’re not sure what’s going on, call (844) 932-0326. We answer 24/7, dispatch runs 7am to 7pm Sunday through Friday, and we’ll look at the whole system before we recommend anything.
Pricing reflects the Arlington market as of 2026. Juniper Air Duct Cleaning offers free estimates – call (844) 932-0326.
What Our Customers Say
"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Tiana Dawson"What sold me was that he told me what NOT to do. I was ready to spend a lot more than I needed to and he stopped me. Ended up costing about a third of what I'd budgeted."
- Matt Ziegler"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."
- Chris Bennett