Whole-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.
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AfterHonest Air Duct Repair for Homeowners Across the United States
Most air duct repair jobs we see cost between $350 and $1,400, depending on how much of the system is damaged and how hard it is to reach. At Kestrel Air Duct Cleaning, you get that number in writing before any tech opens a panel, so there are no surprise fees on the doorstep. We have repaired ductwork for homeowners nationwide since 2004 under the Kingswell Guarantee, and we focus on one thing: getting the air you paid to heat and cool into the rooms where you live. If some rooms never get comfortable, your energy bill keeps climbing, or you hear rattling in the walls, a leaking or broken duct is a likely cause. Call (469) 972-3151 and we will walk you through what is happening and what it should cost to fix.
Ducts fail in ordinary ways. Tape and mastic dry out after years of heat cycles, flex duct gets crushed by someone storing boxes in the attic, and joints pull apart where the system runs through a tight crawl space. A typical home loses a surprising share of its conditioned air through gaps like these, and that air ends up in an attic or wall cavity instead of your living room. Our technicians are background-checked and uniformed, and every job is covered by The Kingswell Way, our code of conduct: arrive in the window we promised, protect your home, and put our 365-Day Done Right Promise in writing. If cleaning is also due, our HVAC cleaning service can be done on the same visit.
What Our Air Duct Repair Service Includes
Duct Inspection and Leak Testing
Every repair starts with a full walk of the system. We check the trunk lines, branch runs, boots and plenum for disconnected sections, crushed flex, and failed seals. Where needed we run a pressure test to find leaks you cannot see, so we fix the actual problem and not just the nearest obvious one.
Section Repair and Reconnection
We reattach separated joints, replace torn or kinked sections, and secure everything with proper straps and fasteners. Hanging ducts that sag trap air and moisture, so we re-support them at the right spacing instead of leaving them to droop again next season.
Mastic and Foil Sealing
Old cloth tape is not a seal. We clean the joint and apply mastic or UL-listed foil tape to every seam we touch, which holds up to attic heat far longer. For whole-system leakage, see our duct sealing service.
Insulation Wrap Replacement
Ducts running through unconditioned space lose heat and sweat in summer when the insulation jacket is torn or missing. We re-wrap exposed runs with the correct R-value so air arrives at the register at the temperature your system intended.
Boot and Register Repair
The boot is the box that connects the duct to the register in your floor, wall or ceiling. These often separate from the drywall or rust through, pumping air into the wall cavity. We re-seat and seal them so every register delivers full airflow.
Airflow Check After Repair
When the work is done we measure airflow at the affected registers and show you the difference. You see the result on the spot, not a promise that things should feel better.
What happens when you call
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A real person answersNo phone trees – you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Signs You Need Air Duct Repair
- Some rooms are always too hot or too cold. When one bedroom never matches the thermostat, the duct feeding it is often separated, crushed or leaking before it reaches the register. The system runs longer to compensate, and the rest of the house pays for it.
- Your energy bill keeps rising with no change in habits. Leaky ducts force your furnace and air conditioner to work harder for the same comfort. A bill that creeps up year after year is a common first clue.
- You hear whistling, rattling or banging in the walls. Loose sections vibrate against framing, and small gaps whistle as air escapes. Noise that was not there last year points to a joint that has come apart.
- Dust collects fast and the air smells musty. Leaks in the return side pull attic or crawl space air into the system and push it through every room. Dust, insulation fibers and odors travel the same path.
- You can see damage in the attic or crawl space. Torn insulation jackets, sagging flex duct, rusted seams or rodent chewing are all visible giveaways. If you spot any of them, call before the damage spreads.
Our Air Duct Repair Process, Step by Step
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Walk-Through and Symptoms: We start by asking which rooms are off and what you have noticed. That tells us where to look first and saves time in the attic or crawl space.
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Full System Inspection: We trace the trunk and branch runs, check every accessible joint, and use a camera or pressure test on hidden sections. We photograph each problem so you can see it for yourself.
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Written Price: You get a clear list of what needs fixing, what can wait, and the total cost for the work. Nothing begins until you approve it.
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Repair and Seal: We replace failed sections, reconnect and strap the runs, and seal every touched joint with mastic or foil tape. Work areas are covered and cleaned up as we go.
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Airflow Verification: We test the repaired registers, show you the results, and confirm the system is running as designed before we leave.
HVAC Duct Installation When Repair Is Not Enough
Sometimes a patch is the wrong answer. If a run is crushed beyond saving, was built with too many bends, or was sized wrong when the house was built, adding new HVAC duct installation is the better fix. We route new branches to rooms that never had good airflow, size them to the equipment, and seal every joint on the way in. Our dryer vent installation team handles the exhaust side of the house the same way, with short, smooth runs and no sharp turns.
Air Duct Replacement for Badly Failed Systems
When most of the system is damaged, full air duct replacement costs less over time than repeated service calls. We typically recommend it for ducts that are decades old, rodent-damaged, collapsed, or contaminated after a leak or fire. You can read more about the process on our air duct replacement page. We remove the old runs, install new insulated ducting, and test the airflow room by room. Pricing is given in writing before we start, and the 365-Day Done Right Promise applies to the entire job.
Ductwork Repair for Targeted Problems
Most customers need ductwork repair on one or two trouble spots, not a rebuild. A single disconnected elbow in the attic can be the reason an entire upstairs is uncomfortable. We fix the specific failure, check the connected runs for the same problem, and seal what we touched. That keeps your cost low and gets you back to a comfortable house, often in a single visit of two to four hours.
Duct Replacement for Single Runs and Sections
If one branch is crushed, torn or full of holes, targeted duct replacement of just that run is usually the right move. We cut out the damaged length, install new insulated duct or rigid metal, and tie it back into the trunk with sealed connections. The rest of your system stays untouched, so you pay only for the part that actually failed. We will tell you honestly if the neighboring sections are close to failing too.
Ductwork Installation for Additions and Remodels
Finished a basement, added a room, or converted a garage? Existing ducts rarely have the capacity to serve the new space. Our ductwork installation covers new supply and return runs sized for the added load, routed to avoid joists and plumbing, and sealed to the same standard as the rest of our work. We coordinate with your existing equipment so the new room gets real airflow and the older rooms do not lose any.
How Much Does Air Duct Repair Cost?
A typical air duct repair runs between $350 and $1,400, while a single reconnection or boot reseal can come in near the low end. The final price depends on how many sections are damaged, how hard they are to reach, and whether insulation needs to be replaced. We do not use teaser coupons or bait-and-switch tactics. When you call, we explain what drives the cost, and once we see the system we give you a written price for the full job before we begin.
Factors that raise the cost include tight crawl spaces, hidden runs behind finished ceilings, and extensive rodent damage. We are open about these during the estimate. If your ducts only need a small fix, we say so, and if they are past repair we tell you that too. Call (469) 972-3151 for a free estimate based on what you are seeing in your home.
Air Duct Repair Across the United States – Our Service Reach
Kestrel Air Duct Cleaning serves homeowners nationwide, with local technicians dispatched to your area. Climate changes what we find: attic heat bakes tape in the South and Southwest, while cold crawl spaces in the North bring condensation and rust. The method does not change. We inspect, give you a written price, repair, test, and stand behind the work with the Kingswell Guarantee. Call to confirm availability in your neighborhood.
Frequently Asked Questions About Air Duct Repair
Uneven temperatures, high energy bills, whistling or rattling in the walls, and heavy dust are the most common signs. A technician can confirm the cause with a visual inspection and, when needed, a pressure test. We will show you photos of any damage we find before you decide on anything.
Most repairs fall between $350 and $1,400, depending on the number of damaged sections and how accessible they are. We give a firm written price before work begins, so there are no surprises on the invoice. Call (469) 972-3151 for an estimate.
Repair makes sense when the damage is limited to a few joints or one or two runs. Replacement is better when the ducts are very old, collapsed, or damaged across most of the system. We will tell you which option fits your home and what each costs.
A focused repair usually takes two to four hours. Larger jobs that involve several runs or insulation work can take a full day. We confirm the timeline when we give you the written price.
Yes. Every job is backed by our 365-Day Done Right Promise, documented in writing on your invoice. If a repaired section fails within that period because of our work, we return and make it right at no added charge.
Often, yes. Sealing leaks and reconnecting broken runs means less conditioned air is lost to the attic or crawl space, so your system runs shorter cycles. The savings vary by house, and we measure airflow before and after so you can see the change.
Schedule Your Air Duct Repair Today
Do not keep paying to heat and cool your attic. At Kestrel Air Duct Cleaning, we provide honest, transparent air duct repair backed by the 365-Day Done Right Promise and the Kingswell Guarantee. Our background-checked technicians will find the problem, fix it, and prove the result. Call (469) 972-3151 today for a free, no-obligation estimate.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving homeowners nationwide since 2004.