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 Tomball
Duct repair and sealing in Tomball typically costs $280-$650 for most residential jobs, with flex duct replacement running $180-$340 per run and full-system mastic sealing averaging $400-$900 depending on accessible linear footage. Our crews serve Tomball from our Houston office, and we’ve worked the Hwy 249 corridor subdivisions long enough to know which builders skipped post-construction duct cleaning in the 2000s boom. Call (346) 423-3631 for a written estimate before any work starts.
Why CleanRun Air Duct Cleaning Spring Is Tomball’s Preferred Duct Repair & Sealing Company
We’ve been in Tomball homes since 2013, and the pattern repeats: a family moves into a house built in 2005 or 2015, runs the AC hard through our humid summers, and starts noticing dust that returns within hours of wiping surfaces. The camera doesn’t lie. We’ve documented the same construction debris in twenty-year-old Tomball tract homes and five-year-old ones alike, because builder handover standards here never required negative-pressure source removal.
Our Duct Repair & Sealing team has served more than 52,000 homes under the H.A.V.E.N. Standard, every job starting with a written price and ending with a Documented Photo Record of every duct run. Tomball customers get the same deliverable: before-and-after images they can scroll through on their phone, plus the 365-Day Done Right Promise in writing. Haven Standard Clause 1 requires that written price; Haven Standard Clause 3 means background-checked, uniformed technicians who give their names before arrival.
We’re not guessing at Tomball conditions. We know the 140-160°F attic heat off FM 2920, the pine pollen loads that filter through compromised flex duct, and the Harvey-era moisture still hiding in duct boots of “repaired” homes near Spring Creek. That local knowledge changes what we look for and what we quote.
Our Duct Repair & Sealing Services in Tomball
Flex Duct Repair
Tomball’s slab-on-grade homes from the 1990s-2000s boom run nearly all their conditioned air through flex duct in unconditioned attics. After twenty to thirty summers, the inner lining degrades and sheds particulates directly into your living space. We replace degraded flex runs with new insulated duct, sealed at every joint with mastic, not tape that will fail in Tomball’s attic heat. Every replaced run gets photographed before and after.
Mastic Sealant Application
Air leaks at duct joints waste 20-30% of conditioned air in a typical Tomball home, and they pull attic dust, pollen, and humidity directly into the system. We apply professional-grade mastic sealant - a thick, fiber-reinforced compound that remains flexible at temperature extremes - to every accessible joint, plenum connection, and register boot. The work is photographed and the linear footage sealed is noted on your written invoice. This is the standard we apply in Tomball’s Vintage Park subdivisions and along the newer stretches of Boudreaux Road alike.
Air Leak Repair
Leaks find the path of least resistance. In Tomball’s pressurized slab homes, that often means return air pulling through wall cavities where Harvey moisture once sat, or supply leaks dumping cooled air into attic insulation that’s already saturated with humidity. We pressure-test the system, locate leaks with smoke pencil and thermal verification, then repair and seal. The result is documented: pressure readings before and after, photos of each repair location.
Metal Duct Repair
Older Tomball homes and custom builds sometimes use galvanized metal trunk lines. We repair separated seams, replace rusted sections, and seal with mastic or specialized metal duct sealant depending on the application. Metal duct in Tomball’s humid attics corrodes at support contact points where condensation collects; we address the cause, not just the symptom.
Duct Insulation Replacement
When flex duct insulation is compressed, water-stained, or stripped by rodents in Tomball’s wooded lots, the thermal barrier fails and condensation forms inside the duct. We replace insulation with specified R-value materials suited to Gulf Coast humidity, sealed against vapor intrusion.
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 Tomball
Our equipment roster includes Nikro negative-pressure extractors, Honeywell media air cleaners, and Aprilaire whole-home dehumidification components - brands you can verify independently. We stock common flex duct diameters, mastic compounds, and register boots to avoid delay on Tomball jobs. If your system includes Abatement Technologies HEPA filtration or Guardsman UV components, our technicians are equipped to service and seal around them without compromising the installation.
Common Duct Repair & Sealing Problems We See in Tomball Homes
- Construction debris baked into original ductwork. Tomball’s tract homes along the Hwy 249 corridor were built fast in the 1990s-2000s boom, and many were never given a post-construction duct cleaning before handover - so drywall dust, sawdust, and drywall-mud grit sat in the supply and return ducts from day one, which is why a brand-new Tomball house often needs cleaning before a 20-year-old home in a slower-built suburb ever does. The 140-160°F attic heat fuses this debris to flex duct walls.
- Degraded flex duct lining shedding particulates. The inner liner of 1990s-2000s flex duct breaks down after two decades in Tomball’s extreme attic temperatures. Homeowners describe “glitter-like” dust or a persistent fine grit on dark surfaces. Camera inspection shows the liner delaminating and distributing particles through every register.
- Harvey-era mold in “repaired” homes. After Hurricane Harvey inundated parts of northwest Harris County, many Tomball attics and wall cavities retained moisture for weeks. We still encounter mold colonies established in duct boots and plenums of homes that were otherwise “repaired,” because the HVAC system was never properly remediated at the time. The musty smell returns when the AC cycles on.
- Pine pollen infiltration through unsealed joints. Tomball sits at the edge of the East Texas Piney Woods, giving it dramatically higher pine pollen loads and organic particulate infiltration than Houston suburbs to the south. Combined with Harris County’s notorious humidity, attic-routed flex ductwork becomes a prime environment for mold and biofilm growth that recurs faster than in comparable homes in Katy or Sugar Land. Sealed joints stop the infiltration at the source.
Pricing for Duct Repair & Sealing in Tomball, TX
A typical flex duct repair in Tomball runs $180-$340 per run, depending on attic accessibility and diameter. Mastic sealing of an entire duct system averages $400-$900 for a single-story slab home, with most Tomball homes falling in the $550-$750 range. Metal duct repair starts around $220 for localized seam work and ranges to $600+ for section replacement. Full duct insulation replacement on an aging system can run $800-$1,400.
What moves the number: attic accessibility (blown insulation versus walkable decking), number of duct runs, extent of degradation, and whether Harvey-era mold remediation is required. We deliver one flat price per system, agreed in writing before any work starts - Haven Standard Clause 1. No per-vent pricing, no add-ons after the van arrives. Bring a competitor’s written estimate; we provide a Free Second Opinion at no cost.
Every Tomball job includes the Documented Photo Record as standard, not an upsell. You’ll see what we saw, what we did, and what the system looks like now.
We Also Serve Cities Near Tomball
Our crews work Tomball regularly and also serve Pinehurst, Spring, Conroe, and Humble from the same dispatch. Scheduling is coordinated from our Houston office, but the truck that arrives at your Tomball driveway carries equipment and parts stocked for local conditions, not a generic kit.
Serving Tomball, TX - Our Local Coverage Area
We’re based in the Tomball 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 Tomball
Because post-construction duct cleaning was never standard practice for Tomball builders during the 2000s-2010s boom. We were called to a two-year-old home off the Hwy 249 corridor in the Tomball area where the family complained of gritty dust settling on furniture within hours of cleaning. A camera inspection showed the supply and return ducts still carrying drywall dust and drywall-mud crumbs from the original build - the builder’s crew had never run a negative pressure source removal after construction. We sealed the joints with mastic, replaced the degraded flex duct runs in the attic, and the dust stopped within a week. If your 2015 home has never had its ducts opened and inspected, construction debris may still be circulating. Call (346) 423-3631 for a written estimate.
Yes. Tomball sits at the edge of the East Texas Piney Woods, giving it dramatically higher pine pollen loads and organic particulate infiltration than Houston suburbs to the south. When unsealed duct joints pull attic air, they’re pulling pine particulates along with humidity. Sealed systems in Tomball stay cleaner longer than identical systems in open-prairie suburbs. Call (346) 423-3631 if you’re seeing yellow-green dust accumulation near registers.
We start with a camera inspection of every accessible duct run, pressure-test the system for leakage, then deliver a written scope and price before any repair begins. Work typically includes mastic sealing of accessible joints, replacement of degraded flex duct sections, and repair of disconnected or damaged boots. Every run is photographed before and after; the photo record is delivered as part of the standard job documentation. The 365-Day Done Right Promise applies in writing. Call (346) 423-3631 to schedule.
Because the HVAC system was likely never remediated. After Hurricane Harvey inundated parts of northwest Harris County, many Tomball attics and wall cavities retained moisture for weeks. Mold colonies established in duct boots and plenums during that period can survive for years, reactivating when humidity rises. Wall repair doesn’t reach the ductwork. Camera inspection and targeted remediation - sometimes boot replacement, sometimes full plenum cleaning and sealing - resolves it. We document the findings before quoting. Call (346) 423-3631.
Yes. Nearly all Tomball slab homes route ductwork through the attic, which means repairs are accessible from above without interior demolition. We access the plenum and duct runs through attic openings, seal joints with mastic, and replace degraded flex runs without touching drywall. The only interior disruption is temporary removal of register covers for camera access. Call (346) 423-3631 for a written estimate on your specific layout.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Tomball since 2013.