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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Stafford
Duct repair and sealing in Stafford, TX typically costs $280-$650 for residential flex duct repairs and $180-$420 for targeted mastic sealing of supply and return runs, with most jobs completed in a single visit. CleanRun crews serve Stafford from our Houston office, carrying Rotobrush inspection cameras and Guardsman sealant equipment for both the brick-veneer ranches off Murphy Road and the commercial suites along US-90A. If your registers blow weak, your attic flex runs have collapsed, or you’re catching musty air after years of Gulf Coast humidity, call (346) 251-8919 for a written price before any panel comes off.
Why CleanRun Air Duct Cleaning Houston Is Stafford’s Preferred Duct Repair & Sealing Company
We’ve worked Stafford’s duct systems since 2013, and the patterns here are distinct from neighboring Sugar Land or Missouri City. Stafford’s concentration of 1970s-1990s ranch homes with attic flex duct means we see collapsed inner liners and torn insulation jackets on a weekly basis, not as exceptions. Our crews know the difference between a simple boot reseal on a patio home near Staffordshire Road and a full flex run replacement in an older ranch off Dulles Avenue.
Our Stafford customers receive the same documented deliverables as every CleanRun job: a written price before work starts (Haven Standard Clause 1), before-and-after photos inside every duct run, and the 365-Day Done Right Promise in writing. Reviews from Stafford homeowners specifically mention the photo record, the uniformed technician who arrived by name, and the absence of invoice shock.
Scheduling runs from our Houston office, and Stafford’s position inside the Beltway 8 loop means crews typically arrive within the standard metro window without the extended drive times that affect outer-ring suburbs. That matters when a collapsed flex run is dumping attic air into your living space.
Our Duct Repair & Sealing Services in Stafford
Flex Duct Repair
Stafford’s housing stock is dominated by flexible duct systems routed through unconditioned attics, and those systems are now 30-50 years old. In summer, attic temperatures here routinely exceed 140°F, which degrades the inner liner adhesive and causes the insulation jacket to tear. Our Duct Repair & Sealing crews replace collapsed sections with new flex duct sized to the original CFM rating, secure all connections with mechanical fasteners and mastic sealant, and re-insulate to R-6 or R-8 depending on the attic configuration. A typical flex duct repair in Stafford runs $320-$580 for a single run replacement, or $680-$1,100 for multiple runs in the same system.
Mastic Sealant Application
Air leaks at plenum joints, register boots, and trunk line connections are the single largest source of efficiency loss in Stafford’s older duct systems. We apply professional-grade mastic sealant (not tape, which fails in attic heat) to every accessible joint after cleaning and inspection. In Stafford’s 70-80% relative humidity, a sealed leak also prevents the moisture infiltration that causes microbial growth at cold supply registers. Mastic sealing of an average residential system in Stafford typically costs $180-$340.
Air Leak Repair
Leak detection starts with a static pressure test and visual inspection with a Rotobrush camera. In Stafford homes near Oyster Creek, we regularly find that post-flood repairs addressed visible water damage but missed the air leaks created when duct boots shifted during foundation drying. We repair the leak, seal with mastic, and verify with a post-repair pressure reading. Targeted air leak repair in Stafford runs $150-$290 per location, with whole-system leak remediation at $380-$620.
Duct Insulation Replacement
Torn or water-stained insulation jackets are common in Stafford’s attic flex systems, particularly in homes that experienced any moisture intrusion from the 2017 flood events or subsequent high-water years. We strip damaged insulation, inspect the inner liner for integrity, and re-wrap with new insulation vapor-sealed at all seams. Duct insulation work in Stafford typically ranges $240-$480 per run depending on diameter and attic accessibility.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Stafford
CleanRun stocks parts and maintains equipment from trade-recognized brands that Stafford homeowners can verify independently: Rotobrush inspection systems for camera work inside flex runs, Honeywell media filters and zone control components for integrated repairs, and Guardsman sealants rated for high-humidity Gulf Coast applications. We don’t source from generic catalogs. If your Stafford home has an Aprilaire zoning system or Nikro negative-pressure equipment from a previous service, our technicians are equipped to service and integrate with those components. Parts availability means most Stafford repairs don’t require a return visit.
Common Duct Repair & Sealing Problems We See in Stafford Homes
- Collapsed inner liners in 140°F attics. Stafford’s 1970s-1990s ranch homes route flex duct through unconditioned attic space where summer heat exceeds 140°F. The adhesive bonding the inner liner fails, the liner collapses into the airstream, and the torn insulation jacket becomes a trap for attic debris and rodent activity.
- Post-flood moisture in Oyster Creek basin homes. Stafford’s position in the Oyster Creek and Brays Bayou drainage basin means many homes received floodwater or sustained elevated humidity during Hurricane Harvey and subsequent high-water events. Sealed flex runs still hide microbial growth in the boots even when the visible liner appears intact.
- Condensation at supply registers from persistent humidity. Stafford’s 70-80% relative humidity creates cold surfaces at supply registers and inside flex duct boots. Without proper sealing and insulation, this condensation sustains mold and microbial growth that cleaning alone cannot resolve.
- Commercial rooftop units with uninspected duct liner. Along US-90A and Murphy Road, strip-mall suites with high tenant turnover often have rooftop package units whose internal duct liner has never been inspected. Shared return plenums accumulate fiberglass fiber, pest debris, and mold that distributes to every connected suite.
Pricing for Duct Repair & Sealing in Stafford, TX
| Service | Typical Range in Stafford |
|---|---|
| Single flex duct run repair/replacement | $320-$580 |
| Multiple flex duct runs (same system) | $680-$1,100 |
| Mastic sealant application (whole system) | $180-$340 |
| Targeted air leak repair (per location) | $150-$290 |
| Whole-system leak remediation | $380-$620 |
| Duct insulation replacement (per run) | $240-$480 |
| Post-flood boot remediation with drying | $420-$780 |
These ranges reflect Stafford’s market specifically. Final pricing depends on duct diameter, attic accessibility, and whether we find flood-related moisture requiring remediation beyond standard repair. Every job starts with a written price before any work begins, under Haven Standard Clause 1. No per-vent pricing. No coupon bait. Call (346) 251-8919 for a free estimate with exact numbers for your system.
We Also Serve Cities Near Stafford
CleanRun crews work Duct Repair & Sealing in Stafford and the surrounding communities: Sugar Land to the northwest, Missouri City to the southwest, Bellaire to the northeast, and Fresno to the southeast. Each city page details the specific housing stock and duct failure modes our technicians encounter there, because a Sugar Land master-planned community duct system differs materially from a Stafford ranch attic or a Missouri City townhome.
Serving Stafford, TX - Our Local Coverage Area
We’re based in the Stafford 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 Stafford
Every 3-5 years for Stafford’s 1970s-1990s ranch homes with attic flex duct, or sooner if you notice weak airflow, musty odors, or visible debris at registers. The combination of 140°F attic heat degrading the inner liner and Stafford’s high airborne pollen and mold-spore loads from surrounding bayou corridors accelerates debris accumulation compared to newer construction with conditioned attics. Call (346) 251-8919 for a camera inspection that shows whether you’re due.
Yes. Stafford’s position in the Oyster Creek and Brays Bayou drainage basin means flood-introduced moisture reached duct boots and low-lying flex runs in 2017 that may still harbor microbial growth even if the visible liner looks intact. Our technicians regularly find water staining and active mold in boots during camera inspections of Stafford homes that had no visible flood damage to living spaces. Sealing without drying traps that growth inside. Call (346) 251-8919 for an inspection that checks what sealing alone cannot fix.
High tenant turnover along US-90A and Murphy Road creates a gap in maintenance responsibility, with landlords often assuming “commercial cleaning” was the previous tenant’s obligation. The result is rooftop package units with shared return plenums that have never had internal duct liner inspected, accumulating years of fiberglass fiber, pest debris, and mold that distributes to every connected suite. CleanRun inspects and remediates these commercial systems with the same documented photo record as residential jobs. Call (346) 251-8919 for a commercial assessment.
No. Sealing stops additional moisture infiltration but does not address existing condensation or microbial growth already present. In Stafford’s 70-80% relative humidity, sealing must be paired with proper insulation, possible boot remediation, and verification that the system is not oversized (short-cycling prevents adequate dehumidification). Our crews test static pressure and temperature differential before recommending sealing scope. Call (346) 251-8919 for a diagnosis that treats the cause, not the symptom.
Every Stafford job operates under the H.A.V.E.N. Standard: Haven Standard Clause 1 (written price before work starts), Clause 3 (verified, background-checked, uniformed crews identified by name before arrival), and the 365-Day Done Right Promise backed in writing. We use NADCA-recommended negative-pressure extraction methods, apply mastic sealant per SMACNA guidelines for flexible duct connections, and deliver a Documented Photo Record of every duct run before and after. Equipment includes Rotobrush inspection systems, Nikro negative-pressure units, and Guardsman sealants rated for Gulf Coast humidity. Call (346) 251-8919 to review the full standard before scheduling.
Our tech was called to a brick-veneer ranch off Murphy Road where the homeowner reported musty air from the supply and return ducts; camera inspection found a collapsed inner liner and water staining in a flex run, so we cut out the damaged section, rebuilt the boot with mastic sealant, and re-insulated it. We finished with negative pressure source removal and HEPA filtration on the air handler, and the register static pressure dropped noticeably the same day. The photo record showed the homeowner exactly what was removed and what was rebuilt.
Stafford sits almost entirely inside the Oyster Creek and Brays Bayou drainage basin, so post-Harvey duct work here routinely means sealed flex runs still hiding flood-introduced microbial growth in the boots, not just torn liners. That flood signature is rare in neighboring Sugar Land and Missouri City duct jobs. Our Stafford pricing reflects this reality: post-flood boot remediation with drying runs $420-$780, and we won’t seal a boot until the camera shows dry, clean metal. That specificity is why Stafford homeowners who’ve been burned by $79 coupon cleaners call us for their second opinion.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Stafford since 2013.