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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AfterFast, Reliable Duct Repair & Sealing Across Carrollton
Duct repair and sealing in Carrollton typically runs $280-$890 for most homes, depending on whether we’re reattaching separated boots, sealing leaks with mastic, or replacing degraded flex-duct runs. Our crews are dispatched from our Dallas-Fort Worth office and carry the parts to handle Carrollton’s most common failure mode on the first visit. Call (469) 405-6133 for a written estimate before any work starts.
We’ve worked in Carrollton since 2013, and the pattern is consistent. The ranch homes in Rosemeade, Josey Ranch, and Indian Creek were built during the suburb’s peak growth in the 1970s and 1980s. Their original flex-duct systems have now spent 35 to 45 years in attics that hit 150°F through July and August. That heat degrades the duct liner. The Blackland Prairie clay beneath the slab heaves and settles seasonally. The result is a repair workload we don’t see in newer northern suburbs. Our Duct Repair & Sealing team documents every finding with before-and-after photos, included as standard on every job.
Why CleanRun Air Duct Cleaning Dallas Is Carrollton’s Preferred Duct Repair & Sealing Company
Carrollton homeowners research before they call. We show them what we found, not what we think they want to hear.
Our reputation here is built on documentation. Every duct run is photographed before and after. Every price is written and agreed before a panel comes off. The 365-Day Done Right Promise is printed on the work order, not buried in a website footer. Haven Standard Clause 1 requires it.
Response time to Carrollton is same-day or next-day for standard scheduling. We don’t manufacture urgency. The work is scheduled, the crew arrives in a marked van, and the technician introduces himself by name before entering.
We know the local housing stock. The split-level ranches along Old Denton Road, the original Josey Ranch builds near the golf course, the Indian Creek homes off Hebron Parkway. Foundation movement on Carrollton’s expansive clay soils has pulled flex-duct boots loose in enough of these homes that we carry extra collar rings and mastic on every truck. That’s local knowledge that saves a second trip.
Our Duct Repair & Sealing Services in Carrollton
Duct Sealing
Most Carrollton homes we inspect have leaks at the plenum, the junction where the air handler meets the main trunk line. The plenum is the large metal box that distributes conditioned air into the duct system. We seal these joints with mastic sealant, a thick, fiber-reinforced paste that remains flexible after curing, unlike duct tape which degrades in attic heat. In Carrollton’s 150°F attics, mastic outlasts tape by years. A typical duct sealing job in Carrollton runs $280-$450 for a single-system home.
Flex Duct Repair
Flex duct is the insulated, flexible tubing that carries air from trunk lines to individual rooms. In Carrollton’s aging ranch stock, we replace flex duct that has collapsed, been crushed by storage items in the attic, or degraded to the point that the inner liner is shedding particles into the airflow. A full flex-duct replacement for a single run in Carrollton typically costs $180-$340. Multiple runs or hard-to-access attic routes push toward the higher end. We were called to a ranch home in the Rosemeade subdivision for what the owner thought was a routine duct cleaning, and during camera inspection our tech found the flex-duct boot at the primary bedroom register had separated from the ceiling collar by over an inch. We reattached the run, sealed the collar and boot with mastic sealant, and verified the repair under negative pressure before returning the system to service. The homeowner noticed the difference in attic-smell and airflow the same afternoon.
Metal Duct Repair
Older Carrollton homes with original metal trunk lines sometimes develop corrosion at seams or separations where sections have pulled apart. We repair with sheet-metal patches, seal with mastic, and reinforce with mechanical fasteners. Metal duct repair in Carrollton runs $320-$580 depending on accessibility and the extent of corrosion. Attic work in tight Carrollton ranch attics takes longer than in newer homes with walkable truss designs.
Duct Insulation
When flex-duct outer insulation has compressed or torn, attic heat transfers directly into the conditioned air stream. In Carrollton’s summer conditions, that can raise supply air temperature by 8-15°F before it reaches the register. We replace damaged insulation or upgrade to higher-R-value flex duct where the existing runs are too degraded. Duct insulation work in Carrollton typically falls between $240-$520 per run.
Mastic Sealant Application
Mastic is our standard sealant for all Carrollton jobs. We apply it with a brush or caulking gun to every joint, seam, and boot connection. It fills gaps up to 1/4 inch and remains flexible through thermal cycling. A full-system mastic seal for a typical Carrollton ranch home runs $380-$650.
Air Leak Repair
Air leaks in Carrollton homes typically occur at three points: the plenum connection, flex-duct collar attachments, and register boots. We pressurize the system, locate leaks with smoke pencil or thermal imaging, then repair and verify. Air leak repair pricing starts at $260 for localized fixes and ranges to $720 for whole-system sealing in larger homes.
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.
BeforeAfterTrusted Brands We Service in Carrollton
Our trucks stock parts from Honeywell, Aprilaire, and Abatement Technologies. Honeywell media air cleaners and whole-home humidifiers integrate with the duct systems we repair. Aprilaire dehumidifiers and ventilation controls are common in Carrollton homes with sealed crawl spaces or conditioned attics. Abatement Technologies supplies the negative-air machines and HEPA filtration we use to protect the home during duct replacement work. We don’t have to order parts for standard repairs. The truck arrives stocked.
Common Duct Repair & Sealing Problems We See in Carrollton Homes
- Flex-duct boots pulled away from registers. On Carrollton’s older streets built over expansive black-clay soils, technicians routinely find flex-duct boots that have pulled an inch or more away from ceiling or floor registers due to years of foundation heave and settlement. This failure mode draws raw attic air and fiberglass insulation fibers directly into the living space and turns what looked like a simple cleaning job into a sealing and reattachment call.
- Degraded flex-duct liner shedding particles. Original flex-duct liner in Carrollton’s 1975-1995 housing stock has spent decades in attics that routinely exceed 150°F. The liner breaks down and releases particles that travel through supply ducts into every room, visible as fine dust on registers and furniture.
- Loose collar connections at the air handler. Foundation movement on Blackland Prairie clay worsens the mechanical stress on flex-duct collar connections where runs meet the trunk line or plenum. These leaks drop system efficiency and pull unfiltered attic dust into the airflow.
- Collapsed or crushed flex-duct runs. Carrollton’s ranch attics were often used for storage after original construction. Heavy items compress flex duct over years, restricting airflow to distant rooms. We replace these runs with properly supported new duct sized to the original Manual D calculation.
Pricing for Duct Repair & Sealing in Carrollton, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts. Here is what duct repair and sealing costs in Carrollton’s market:
| Service | Typical Range |
|---|---|
| Duct sealing (localized) | $260-$380 |
| Duct sealing (whole-system) | $380-$650 |
| Flex duct repair / replacement (per run) | $180-$340 |
| Metal duct repair | $320-$580 |
| Duct insulation replacement (per run) | $240-$520 |
| Air leak detection and repair | $260-$720 |
| Boot reattachment and sealing | $140-$280 |
What moves a job toward the higher end: multiple attic access points, degraded liner requiring full run replacement rather than spot repair, and homes with two HVAC systems. What keeps it lower: single-system ranches with accessible attics and localized leaks. Every estimate is free, written, and delivered before work begins. Bring a competitor’s quote and we’ll put our number next to it. Free Second Opinion, Haven Standard Clause 5.
We Also Serve Cities Near Carrollton
Our crews work throughout the northern DFW corridor. We handle duct repair and sealing in Carrollton and the surrounding communities: Coppell to the southwest, Richardson to the southeast, Lewisville to the northwest, and Plano to the northeast. Each city has distinct housing stock and soil conditions, and our pricing and approach adjust accordingly.
Serving Carrollton, TX - Our Local Coverage Area
We’re based in the Carrollton area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Duct Repair & Sealing in Carrollton
Carrollton’s foundation movement on Blackland Prairie clay routinely pulls flex-duct boots an inch or more off the ceiling and floor registers, so a cleaning call here often becomes a reattachment and sealing job. This boot-pull failure mode is far more common in Carrollton’s 1975-1995 ranch stock than in newer northern suburbs like Frisco, where slabs and duct systems haven’t cycled through forty years of heave and settlement. Our camera inspection finds it before we quote. Call (469) 405-6133 for a written estimate.
It means unconditioned attic air, dust, and fiberglass insulation are entering your living space every time the system runs. The gap also dumps conditioned air into the attic, raising your utility bills. We reattach the boot to the collar, seal with mastic, and verify under negative pressure. Boot reattachment and sealing in Carrollton typically runs $140-$280. Call (469) 405-6133 for an exact quote.
Yes, if the flex duct itself is intact and only the connections are leaking. We apply mastic sealant to joints, collars, and boots, then pressurize the system to verify. If the inner liner is degraded or the insulation is compressed, partial or full replacement is the durable fix. We’ll show you the camera footage and quote both options in writing. Call (469) 405-6133 to schedule.
The expansive clay soils beneath Carrollton heave when wet and shrink when dry, cycling seasonally. This movement stresses rigid plenum connections and gradually pulls flexible boot attachments loose. Our sealing work accounts for this by using flexible mastic at stress points and verifying that boots have adequate slack to accommodate minor future movement. We can’t stop the clay from moving, but we can build repairs that tolerate it. Call (469) 405-6133 for a free inspection.
We use Rotobrush mechanical agitation brushes for duct interior access, Nikro negative-air machines for containment during replacement work, and Abatement Technologies HEPA filtration to protect the home. Sealing is done with professional-grade mastic applied by brush or caulking gun, and we verify repairs with smoke pencils or thermal imaging. Every tool is named so you can look it up. Call (469) 405-6133 for a written estimate.
Ready to see what’s actually happening inside your ductwork? Call (469) 405-6133 for a free, written estimate. Our technician will inspect every run with a camera, show you the findings, and deliver a fixed price before any work begins. Every job includes a Documented Photo Record and is backed by our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Carrollton since 2013.