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 Mansfield
Most Duct Repair & Sealing jobs in Mansfield run $280-$620 for a complete system, and we typically schedule within 3-5 business days. Our crews serve Mansfield from our Dallas-Fort Worth dispatch office, carrying the full Rotobrush and Nikro inventory needed for same-visit repairs on standard flex and metal duct systems. If your home sits in one of the subdivisions off Broad Street, Matlock Road, or the Highway 287 corridor, we’ve likely already worked the same floor plan.
Call (682) 297-4068 for a written estimate before any work starts. Estimates are free.
Why CleanRun Air Duct Cleaning Irving Is Mansfield’s Preferred Duct Repair & Sealing Company
We’ve been documenting the inside of Mansfield duct systems since 2013. In neighborhoods like Walnut Creek Country Club, South Pointe, and the master-planned communities along Debbie Lane, our crews have photographed the same failure patterns repeating across homes built in the same development wave. That repetition is useful. It means we can show you photos from a home with your floor plan and explain exactly what we’re likely to find in yours.
Our Mansfield customers receive the same deliverables as every CleanRun job: a written price before any panel comes off, a 365-Day Done Right Promise backed in writing, and a Documented Photo Record of every duct run before and after. Haven Standard Clause 1 requires that written price. No exceptions.
Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. You’ll get a name before arrival, not a window.
Our local reputation is built on what we can produce: 52,000+ homes served, every one with a written price and photo record. No decorative badges. No claims we can’t back with documentation.
Our Duct Repair & Sealing Services in Mansfield
Flex Duct Repair
Mansfield’s 2000-2020 tract homes are loaded with flexible duct runs, and most were installed fast. Under-supported flex sags between joists, collects debris at the low points, and develops pin-hole tears from repeated exposure to 140°F+ attic temperatures. On a two-story in the Broad Street corridor, our tech found a flex-duct collar at the supply plenum popped loose from clay-soil framing movement, pulling attic insulation fibers into the living-space air. We used camera inspection and agitation tools to confirm the tear, reconnected the collar, and sealed it with mastic before a full source-removal cleaning on the supply and return ducts.
Flex duct repair in Mansfield typically runs $180-$340 per run, depending on accessibility and whether the plenum connection needs rebuilding.
Mastic Sealant Application
Mastic is a water-based sealant we brush onto joints, seams, and collar connections. It remains flexible after curing, which matters in Mansfield attics where seasonal temperature swings exceed 100°F. We apply mastic after any repair or disconnection is corrected, and we photograph the sealed joint before closing the access panel. A full-system mastic seal on a typical Mansfield two-story runs $320-$480.
Air Leak Repair
Leaks in Mansfield homes usually start at the plenum collar or at poorly sealed take-off boots. The Fort Worth Prairie’s dark Vertisol clay soils shift substantially between wet winters and baking dry summers, stressing duct hangers and plenum connections year after year. What registers as a stuffy room or high summer electric bill is often conditioned air dumping into the attic through a gap the homeowner can’t see. We pressure-test the system, locate leaks with smoke pencil and thermal imaging, then repair and seal. Air leak repair and sealing in Mansfield runs $260-$520 for most systems.
Metal Duct Repair
Older Mansfield homes and custom builds sometimes use galvanized steel ductwork. We repair separated seams, replace rusted sections, and reseal with mastic or foil-backed tape rated for HVAC use. Metal duct repair runs $220-$450 per section.
Duct Insulation
When flex duct outer insulation is torn or compressed, attic heat bleeds into conditioned air. We replace damaged insulation wraps or install new insulated flex where the original is beyond repair. Duct insulation work in Mansfield runs $200-$380 per run.
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 Mansfield
Our vans carry professional-grade equipment from Nikro, Honeywell, and Aprilaire, with Abatement Technologies HEPA filtration on every negative-pressure extraction job. We stock common flex duct diameters, collar sizes, and mastic compounds for Mansfield’s predominant 2000-2020 housing stock, so most repairs don’t wait on parts. If your system uses Honeywell or Aprilaire whole-house air cleaners, we inspect and document their condition as part of the duct assessment. Equipment is named so you can verify specifications independently before agreeing to any price.
Common Duct Repair & Sealing Problems We See in Mansfield Homes
- Builder-speed flex duct runs left under-supported. In subdivisions like South Pointe and Walnut Creek, we regularly find flex duct sagging between joists with no support strap within 4 feet. The sag traps debris, restricts airflow to second-story rooms, and stresses the collar connection at the plenum.
- Clay-soil framing movement pops collars at the plenum. The same expansive Vertisol clay that cracks slab perimeters in Mansfield subdivisions torques attic framing enough to loosen flex-duct connections. We find this on homes as new as 8-10 years old.
- Partial disconnections pull attic insulation into living spaces. When a flex-duct collar loosens but doesn’t fully separate, the negative pressure at the air handler draws loose-fill insulation through the gap. Homeowners notice dust that doesn’t settle, or fibers visible at registers.
- Construction debris and drywall dust from original build-out. Mansfield’s dense 2003-2018 build-along Highway 287 means thousands of homes had ducts open during active construction. Drywall dust, wood scraps, and trade debris sat in the system from handover. Those homes are now 10-20 years old, hitting their first professional service window with compounded debris loads.
Pricing for Duct Repair & Sealing in Mansfield, TX
Here’s what duct repair and sealing costs in Mansfield’s market:
| Service | Typical Range |
|---|---|
| Flex duct repair (per run) | $180 - $340 |
| Air leak repair and sealing (system) | $260 - $520 |
| Mastic sealant application (system) | $320 - $480 |
| Metal duct repair (per section) | $220 - $450 |
| Duct insulation replacement (per run) | $200 - $380 |
| Complete system: repair + seal + clean | $580 - $940 |
These are whole-system prices, not per-vent teaser rates. We deliver one flat price per system, agreed in writing before work starts, under Haven Standard Clause 1. What moves the number: attic accessibility, number of duct runs, whether plenum connections need rebuilding, and whether we find construction debris requiring source-removal cleaning after the repair.
Bring a competitor’s written estimate. We’ll put our number next to it, free.
We Also Serve Cities Near Mansfield
Our Mansfield crews also handle duct repair and sealing calls in Arlington, Grand Prairie, Haltom City, and North Richland Hills. Dispatch is coordinated from our Dallas-Fort Worth office, with scheduling prioritized by route efficiency, not city limits.
Serving Mansfield, TX - Our Local Coverage Area
We’re based in the Mansfield 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 Mansfield
Twelve years is exactly when builder-grade flex duct systems in Mansfield’s 2003-2018 build-out start failing. Under-supported flex sags, 140°F+ attic heat degrades the inner liner, and the Vertisol clay soil movement that cracks local slab perimeters also torques attic framing enough to pop collar connections. We regularly find partially disconnected ducts and construction debris still in systems from original build-out. Call (682) 297-4068 for a camera inspection and written estimate.
The expansive Vertisol clay beneath Mansfield swells in wet winters and shrinks in dry summers, shifting foundations and attic framing year after year. That movement stresses duct hangers and can torque plenum connections until flex-duct collars separate. It’s a local failure mode we document on camera in Broad Street and Matlock Road subdivisions regularly. The repair is straightforward once located, but it doesn’t fix itself.
We start with camera inspection of every accessible duct run, pressure-test the system for leaks, then repair disconnected or damaged sections with new flex, collars, or metal as needed. All joints receive mastic sealant. We finish with source-removal cleaning on supply and return ducts, photographing every run before and after. A typical Mansfield two-story takes 4-6 hours. You’ll receive the photo record and written scope before we leave.
Signs we see most in Mansfield: rooms that won’t hold temperature, dust that returns quickly after cleaning, higher-than-expected summer electric bills, or visible fibers at registers. The definitive check is a pressure test, which we include in our assessment. If the system can’t hold negative pressure, we locate leaks with smoke pencil and thermal imaging, then show you the photo evidence before quoting repair.
Yes. Our source-removal cleaning, negative-pressure extraction, and post-repair verification align with NADCA ACR standards. We use HEPA-filtered Abatement Technologies equipment, document the full process, and deliver the photo record as part of every job record. The 365-Day Done Right Promise applies to all work.
Call (682) 297-4068 for a written estimate before any work starts. Estimates are free. Every job includes a Documented Photo Record and is backed by the 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Irving, serving Mansfield since 2013.