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 Katy
Duct repair and sealing in Katy typically costs $280-$680 for most residential jobs, with flex duct replacement running higher when multiple runs are involved. Our crews dispatch from the Houston office and carry common flex duct, mastic, and insulation sizes for the tract-home layouts we see in Cinco Ranch, Firethorne, and Cross Creek Ranch. Call (346) 666-7165 and we’ll put a written price in front of you before any panel comes off.
Katy isn’t a generic Houston suburb when it comes to ductwork. The master-planned communities built during the 1990s-2010s boom share a common problem: long single-story runs of builder-grade flexible duct stretched across superheated attics, now sagging and tearing at age 15-25. In post-Harvey neighborhoods near the Barker and Addicks reservoirs, we’ve found a second layer of hidden damage: cosmetic remediation that replaced drywall but left flex duct joints unsealed and mold-stained. Our Duct Repair & Sealing team documents every run with before-and-after photography, so you see what was actually found and what was actually fixed.
Why CleanRun Air Duct Cleaning Katy Is Katy’s Preferred Duct Repair & Sealing Company
We’ve served the Katy market since 2013, and the photo records from those 52,000+ homes let us show prospective customers exactly what builder-grade flex duct looks like at year 18 versus year 5. No vague claims. Specific images from specific neighborhoods.
Katy customers find us because they research before calling. They want a written price, a documented record, and a crew that arrives in uniform with a name they can verify. Haven Standard Clause 3: Verified Crews means every technician is background-checked and identified by name before arrival. No exceptions.
Our response time to Katy is same-day scheduling for most repair calls, with dispatch coordinated from our Houston office. We don’t promise impossible arrival windows; we promise a confirmed appointment with a named technician and a written scope delivered before work starts.
The local knowledge matters. We know which Cinco Ranch phases have the original flex duct runs that sag at the first elbow. We know which post-Harvey rebuilds in Bear Creek Village had drywall contractors who never pulled a ceiling panel to inspect the plenum connection. That specificity is why Katy homeowners choose documented work over coupon pricing.
Our Duct Repair & Sealing Services in Katy
Duct Sealing
Duct sealing in Katy addresses the leaks that develop at plenum connections, register boots, and mastic-starved joints in 15-25-year-old flex duct systems. We use professional-grade sealants and mechanical fastening, then verify with pressure testing. In Katy’s climate, where AC runs nine or more months a year and attic temperatures spike past 130°F, even a 15% leak rate forces your system to cycle significantly harder. Our sealing work is photographed at each joint, and the photo record is delivered as part of your job documentation. Typical duct sealing in Katy runs $280-$450 for a single-zone residential system.
Flex Duct Repair
Flex duct repair is the most common service we perform in Katy’s master-planned communities. The builder-grade flex installed during the 1990s-2010s construction boom has a 20-25 year effective lifespan under ideal conditions; Katy’s superheated attics and extreme humidity are not ideal conditions. We find sagging runs that have pulled away from collars, torn inner liners where support straps failed, and collapsed sections where attic heat has degraded the insulation jacket. Our crew carries replacement flex duct, collars, and tensioning tools sized for the long single-story runs typical in Cinco Ranch and Grand Lakes homes. Flex duct repair or replacement in Katy typically ranges from $180 per run to $680 for multiple runs in a single system.
Metal Duct Repair
Metal duct repair in Katy is less common than flex work but critical in older homes and custom builds where galvanized steel trunk lines have corroded at seams or suffered impact damage. We seal metal joints with proper mastic application and mechanical reinforcement, then reinsulate to prevent the condensation that Katy’s humidity guarantees on uninsulated metal surfaces. Metal duct repair in Katy typically runs $320-$580 depending on accessibility and extent of corrosion.
Duct Insulation
Duct insulation replacement in Katy addresses the degraded R-value of original flex duct jackets and the condensation that forms when cool air moves through under-insulated runs in 130°F attics. We use professional-grade insulation materials, including Guardsman products rated for high-humidity applications. Proper insulation reduces the thermal losses that make Katy AC systems work harder than they should, and it prevents the condensation that leads to mold growth inside duct walls. Duct insulation work in Katy typically ranges from $340-$620 for a complete system.
Air Leak Repair
Air leak repair targets the specific points where conditioned air escapes into Katy’s superheated attics: plenum connections, register boots, access panel gaps, and failed flex-to-metal transitions. We pressurize the system, locate leaks with smoke testing and thermal imaging, then repair and verify. In Katy’s climate, where cooling loads are extreme and continuous, air leak repair delivers measurable efficiency improvements. Air leak repair in Katy typically runs $260-$480.
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 Katy
Our equipment roster includes Rotobrush agitation systems for duct cleaning paired with repair work, Abatement Technologies HEPA-negative air machines for containment during mold-affected jobs, and Guardsman insulation and sealing materials for flex duct replacement and reinsulation. We stock common sizes and fittings for Katy tract-home layouts, which means most repairs don’t wait on parts. For air quality components tied to sealed duct systems, we work with Aprilaire media filters and whole-home purifiers. Every brand is named so you can verify specifications independently before agreeing to our written price.
Common Duct Repair & Sealing Problems We See in Katy Homes
- Builder-grade flex duct sagging and micro-tearing in master-planned communities. The rapid construction of Cinco Ranch, Firethorne, and Cross Creek Ranch during the 1990s-2010s meant long flex duct runs installed with minimal support spacing. After 15-25 years of Katy’s attic heat cycling, these runs sag at elbows, tear at collar connections, and develop micro-perforations that let 130°F attic air infiltrate the supply stream.
- Post-Harvey cosmetic remediation that missed flex duct joints. In Bear Creek Village and Canyon Lakes West, 2017-2018 rebuilds frequently replaced drywall and bleached surfaces without inspecting or replacing flex duct connections. We’ve opened supply runs behind rebuilt walls and found mold staining, sediment deposits, and failed mastic that were sealed back in by new drywall.
- Extreme humidity causing condensation and mold inside duct runs. Katy’s position on the Katy Prairie means relative humidity routinely exceeds 85-90%, and the temperature differential across duct walls in 130-140°F attics creates persistent condensation. This moisture feeds mold growth inside flex duct liners, particularly at low points where sagging creates standing water traps.
- Rural property dust loading from unpaved roads and open prairie land. Properties on the edges of Katy proper, near unpaved access roads and open Bermuda grass and ragweed prairie, experience accelerated debris accumulation in ductwork. Leaks at boots and plenums pull this dust directly into the system, and without source removal paired with sealing, the leaks reappear within a couple of seasons.
Pricing for Duct Repair & Sealing in Katy, 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 Katy’s market:
| Service | Typical Range in Katy |
|---|---|
| Duct sealing (single-zone system) | $280-$450 |
| Flex duct repair (per run) | $180-$320 |
| Flex duct replacement (multiple runs) | $480-$680 |
| Metal duct repair | $320-$580 |
| Duct insulation replacement | $340-$620 |
| Air leak repair | $260-$480 |
| Post-Harvey mold-affected remediation with HEPA containment | $520-$890 |
Factors that move price within these ranges: accessibility of duct runs in Katy’s sprawling single-story attics, extent of mold or sediment contamination requiring HEPA-negative air containment, number of runs involved, and whether register boots and plenum connections need replacement in addition to sealing. We deliver a written, itemized price before any work begins. Free estimates. Free second opinions on any competitor’s written quote.
We Also Serve Cities Near Katy
Our crews work throughout the west Houston metro, including Duct Repair & Sealing in Katy and surrounding communities: Richmond to the southwest, Brookshire to the west, Sugar Land to the southeast, and Stafford to the east. Each market has distinct housing stock and ductwork conditions; our pricing and scope adjust accordingly, always with the same written-price-first protocol.
Serving Katy, TX - Our Local Coverage Area
We’re based in the Katy 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 Katy
Rural Katy properties on unpaved roads should have ductwork inspected every 3-4 years and sealed as needed, with cleaning intervals shortened to every 2-3 years due to accelerated dust loading. The Bermuda grass and ragweed pollen off the Katy Prairie, combined with caliche road dust, infiltrates duct systems faster than in paved suburban developments. We recommend pairing sealing with source removal, because sealing alone won’t stop debris from entering through return leaks and register gaps. Call (346) 666-7165 for a written inspection scope and price.
Yes, if your home is in the Barker or Addicks reservoir flood pool and the ductwork was not specifically inspected and documented during remediation. In Bear Creek Village and Canyon Lakes West, we’ve routinely found that cosmetic remediation replaced drywall and bleached surfaces without opening flex duct joints for inspection. The result is mold staining, sediment, and failed mastic sealed back inside rebuilt walls and ceilings. Our camera inspection can verify condition without destructive opening, and we deliver the photo record as part of your documentation. Call (346) 666-7165 to schedule.
Katy’s flex duct failures cluster in two populations: aging builder-grade flex in 15-25-year-old master-planned homes, and post-Harvey remediation that missed duct connections. The original flex in Cinco Ranch, Firethorne, and Cross Creek Ranch was installed with minimal support spacing across long single-story runs in superheated attics. After years of 130-140°F heat cycling, the material sags, tears at collars, and develops micro-perforations. Combined with Katy’s extreme humidity, these leaks create condensation and mold growth that compound the original damage. Call (346) 666-7165 for a written assessment.
We start with camera inspection of every run to document condition, then set up HEPA-negative air containment if mold is present. For flex duct, we replace sagging or torn sections with new material, secure with proper tensioning and support spacing, seal all joints with mastic, and reinsulate to prevent condensation. For metal trunk lines, we seal seams and reinforce with mechanical fasteners, then reinsulate. Every step is photographed, and the photo record is delivered as a standard job deliverable. A typical long single-story run in a Katy tract home takes 3-5 hours. Call (346) 666-7165 for a written price.
Yes, duct sealing typically reduces cooling energy use by 15-30% in Katy’s climate, where the long cooling season multiplies the cost of every leaked CFM. In a market where AC runs nine or more months and attic temperatures exceed 130°F, the savings from sealed supply and return ducts compound significantly compared to shorter-season markets. We verify results with before-and-after pressure testing, and the documentation is included in your job record. Call (346) 666-7165 for a written estimate with projected efficiency impact.
Schedule Your Duct Repair & Sealing in Katy
Every job starts with a written price delivered before work begins, backed by our 365-Day Done Right Promise and documented with before-and-after photography of every duct run. Our technicians are background-checked, uniformed, and identified by name before arrival. Calls are answered by a live person, and we offer free second opinions on any competitor’s written estimate.
Call (346) 666-7165 for your free estimate on duct repair and sealing in Katy. We’ll put a specific price in writing, show you what we find, and leave you with a documented record of the work.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Katy since 2013.
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