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.
Fast, Reliable Duct Repair & Sealing Across Pasadena
Duct repair and sealing in Pasadena, TX typically runs $280-$680 for most homes, with camera inspection included before any work starts. Our crews dispatch from the Houston office and carry Guardsman flex connectors, mastic sealant, and Rotobrush camera systems specifically sized for the slab-on-grade ranch homes that dominate Pasadena’s neighborhoods. Call (346) 251-8919 for a written estimate - we deliver the full price before a single panel comes off.
We’ve worked Pasadena since 2013. We know the original fiberglass duct board in the 1950s-70s ranch stock near Spencer Highway and Red Bluff Road. We know what the Ship Channel leaves inside return systems. And we know that sealing over contaminated ducts without source removal is a repair that fails before the next cooling season.
Why CleanRun Air Duct Cleaning Houston Is Pasadena’s Preferred Duct Repair & Sealing Company
Pasadena homeowners research before they call. They want what we document: a written price, a photo record of every duct run, and a 365-Day Done Right Promise backed in writing on every job - Haven Standard Clause 1, Clause 5, and Clause 6.
Our Duct Repair & Sealing team has served over 52,000 homes since 2013, every one with a written price before work started and a Documented Photo Record delivered at completion. In Pasadena specifically, we regularly return to the same neighborhoods - from the older ranch pockets near Vista Road to the refinery-adjacent blocks along Preston Avenue - because homeowners refer us after seeing what the camera actually found.
Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Tomas Reyes established this standard in 2013, and it governs every dispatch to Pasadena. The license number is published on this page, not buried in a footer. Equipment includes Rotobrush inspection systems, Nikro negative-pressure extractors, and Guardsman connectors - brands you can verify independently before agreeing to any price.
All calls are answered by a live person. Scheduling is coordinated from our Houston office, with crews serving Pasadena locally. No “call for a quote” - we put the number in writing, on site, before work begins.
Our Duct Repair & Sealing Services in Pasadena

Duct Sealing with Mastic Sealant
Mastic sealant is the only proper method for sealing fiberglass duct board and metal plenums in Pasadena’s aging systems. We apply it by hand at every joint, collar, and plenum connection after camera inspection confirms the surface is clean enough to bond. In Pasadena’s humidity, mastic outperforms tape by years - tape peels; mastic cures into a flexible, permanent seal. A typical mastic sealing job on a 1,500-square-foot Pasadena ranch runs $280-$420, including inspection and photo documentation.

Flex Duct Repair
Original flex duct in Pasadena’s 1960s and 1970s homes crushes under decades of attic traffic, re-insulation work, and rodent activity. The damage hides: a register can blow strong air while the duct behind it is 60% collapsed. We run Rotobrush camera inspection on every suspected run, then replace crushed sections with Guardsman flex duct sized to the original CFM load. Flex duct repair in Pasadena typically costs $180-$340 per run, with most homes needing 1-3 runs addressed.

Metal Duct Repair
Some Pasadena homes, particularly those with later additions or custom builds near Burke Road, have galvanized metal trunk lines. These corrode at seams from condensation cycling in hot attics, and they rattle when fasteners back out. We rebuild corroded sections, re-seat hangers, and seal with mastic - not duct tape, which fails in Pasadena’s ambient moisture. Metal duct repair ranges $320-$580 depending on trunk length and access.

Duct Insulation
Attic ductwork in Pasadena loses 20-30% of conditioned air through uninsulated or degraded insulation. We install fresh insulation rated for Houston-metro humidity after sealing is complete, so you’re not insulating air leaks. This is often the step that finally stops the temperature stratification between rooms in a Pasadena ranch. Duct insulation add-on runs $240-$480 for a typical home.

What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Pasadena
CleanRun carries professional-grade equipment from Rotobrush, Nikro, Honeywell, and Guardsman - trade-recognized brands we name so Pasadena customers can verify specifications before any work starts. We stock Guardsman flex connectors and mastic-compatible fittings sized for the smaller duct diameters common in Pasadena’s original ranch stock. Parts availability means most repairs finish in one visit. We do not use consumer-grade shop vacs or unbranded consumables. Every tool is documented on the written scope you receive before work begins.
Common Duct Repair & Sealing Problems We See in Pasadena Homes

- Fiberglass duct board delamination. The 1950s-70s ranch homes that define Pasadena’s housing stock were built with fiberglass duct board that sheds liner fibers into the airstream after decades of condensation cycling in hot attics. Sealing alone won’t fix a shedding run - the board needs replacement or encapsulation after source removal.
- Crushed or disconnected flex duct runs. Decades of attic work, re-insulation, and rodent pressure collapse original flex duct in ways registers disguise. Camera inspection finds disconnections feeding front bedrooms while the master register blows fine - the air is just taking the path of least resistance through gaps.
- Petroleum-tinged residue in refinery-adjacent returns. Homes with return-air intakes near garages or utility rooms along Spencer Highway and Red Bluff Road accumulate a greasy, chemically-tinged film that standard residential cleaning protocols weren’t designed to address. Sealing over this residue traps it; mastic won’t bond. Source removal with negative-pressure extraction and HEPA filtration comes first.
- Plenum and collar separation at the air handler. Pasadena’s year-round AC cycling vibrates plenum connections loose, bleeding conditioned air into attics or garage returns. We see this on nearly every original-system inspection - it’s invisible from the living space but measurable in energy bills.
Pricing for Duct Repair & Sealing in Pasadena, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts - no exceptions.
| Service | Typical Range in Pasadena |
|---|---|
| Camera inspection (included with repair) | $0 (with booked work) |
| Mastic sealing, whole system | $280-$420 |
| Flex duct repair, per run | $180-$340 |
| Metal duct repair, trunk section | $320-$580 |
| Duct insulation add-on | $240-$480 |
| Full system: inspection, sealing, 2 flex repairs, insulation | $680-$1,040 |
What moves the price: accessibility (crawl space vs. walk-in attic), number of runs needing repair, and whether source removal is required before sealing can begin. The petroleum-tinged residue common along Spencer Highway and Red Bluff Road adds a source-removal step that standard suburban jobs don’t need. We identify this during inspection and put the full scope in writing before any work starts. Estimates are free. Call (346) 251-8919.
We Also Serve Cities Near Pasadena

Our crews work Duct Repair & Sealing in Pasadena and surrounding communities including Deer Park, Pearland, Houston, and Friendswood. Each city’s housing stock and contamination profile differs - Pasadena’s refinery-adjacent residue and 1950s-70s ranch concentration is distinct from Friendswood’s newer construction - and we adjust inspection and repair protocols accordingly.
Serving Pasadena, TX - Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena

It depends on whether the board is shedding liner fibers. We run camera inspection first; if the fiberglass surface is intact, mastic sealing at all joints and collars extends service life significantly. If the board is delaminating - common in Pasadena’s hot, humid attics after 50+ years - sealing traps fibers in the airstream and we recommend replacement or encapsulation after source removal. Call (346) 251-8919 for an inspection and written scope.
That’s petroleum-tinged residue from Pasadena’s Ship Channel proximity - a combination of industrial particulates, sulfur compounds, and combustion byproducts that standard residential duct cleaning wasn’t designed to remove. The grease prevents mastic and sealant from bonding, so we perform source removal with negative-pressure extraction and HEPA filtration before any sealing work. We’ve documented this specifically on runs near Red Bluff Road and Preston Avenue. Call (346) 251-8919 for an inspection.
Leaking ducts show specific symptoms: uneven temperatures between rooms, excessive dust at registers, energy bills that climb without rate increases, and whistling or rattling from pressurized gaps. Dirty ducts distribute contamination uniformly. We confirm with camera inspection and pressure testing - part of our standard assessment - then put the findings and repair scope in writing before any work starts. Call (346) 251-8919 to schedule.
Yes. Pasadena’s position at the confluence of Galveston Bay moisture and Ship Channel industrial humidity creates among the highest ambient moisture loads in the Houston metro. AC systems run nearly year-round, and attic ductwork undergoes constant condensation cycling. We use mastic sealant rated for wet-application curing, not tape, and we inspect for mold colonization inside ducts before sealing - trapping mold behind a seal makes the problem worse. This climate-specific protocol is standard on every Pasadena job.
MERV 11-13 for most Pasadena homes, with a caveat: higher MERV restricts airflow, and older systems with already-marginal blower capacity can suffer. After sealing - which reduces the system’s total air volume requirement - we evaluate whether your unit can handle MERV 13, or whether MERV 11 with more frequent changes is the better balance. We note the recommended rating on your written job record. For homes near refinery fence lines with ongoing particulate load, we may recommend supplemental air quality equipment. Call (346) 251-8919 to discuss your specific system.
Schedule Duct Repair & Sealing in Pasadena
Call (346) 251-8919 to speak with a live person, 24/7. We’ll schedule camera inspection at your Pasadena home, deliver a written price before any work starts, and leave you with a Documented Photo Record of every duct run - plus the 365-Day Done Right Promise in writing. No per-vent pricing. No “call for a quote.” Just documented evidence of what we found and what it costs to fix.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Pasadena since 2013.




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