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 Bellaire
Duct repair and sealing in Bellaire typically costs $280-$750 for most residential jobs, with full-system flex duct replacement on larger rebuild homes running $1,200-$2,800. We dispatch crews to Bellaire from our Houston office and can usually schedule within 48-72 hours. Call (346) 253-1822 for a written estimate before any work starts.
We’ve worked in Bellaire since 2013, and the ductwork here isn’t like neighboring Stafford or Missouri City. The same street can hold a 1962 ranch with original flex duct crumbling in the attic and a 2023 rebuild with six-zone climate control that was never properly cleaned after construction. Both need real repair and sealing, not a shop-vac run through the registers. Our Duct Repair & Sealing team documents every run with before-and-after photos so you can see what was actually done.
Why CleanRun Air Duct Cleaning Pearland Is Bellaire’s Preferred Duct Repair & Sealing Company
Bellaire homeowners research before they call. They want to see license numbers, equipment lists, and written prices. We publish ours. Haven Standard Clause 1 requires a written price before any panel comes off your system, and we’ve held that since our first job in 2013. Tomas Reyes built CleanRun on the principle that a customer should know exactly what they’re paying for and have photographic proof it happened.
Our crews know the local housing stock. We’ve repaired ductwork in the postwar ranches off Evergreen Street, sealed plenums in rebuilds near Braeswood, and replaced Harvey-damaged flex runs in homes backing onto Brays Bayou. That local knowledge matters when you’re deciding whether a duct run can be sealed or needs full replacement.
Every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. You’ll get the technician’s name before arrival, and the same crew that inspects your system performs the work. No subcontractors, no rotating door of unfamiliar faces in your attic.
The 365-Day Done Right Promise applies to every Bellaire job. If the seal fails, if a joint opens, if moisture returns to a repaired run, we make it right. That’s a written guarantee, not a policy subject to manager approval.
Our Duct Repair & Sealing Services in Bellaire
Duct Sealing
Most Bellaire homes lose 20-30% of conditioned air through leaks at plenum joints, register boots, and seams between duct sections. In the rebuilds near Pine Street and Sixth Street, we’ve found multi-zone systems with gaps large enough to slide a hand through, sealed at construction with duct tape that failed within the first summer. We seal with mastic compound and metal-backed tape rated for high-temperature applications, then pressure-test to verify. A typical duct sealing job in Bellaire runs $280-$450 for a single-system home, $550-$750 for multi-zone rebuilds.
Flex Duct Repair
Flex duct is the black corrugated tubing you’ll see in most Bellaire attics. It was the standard for ranch construction from the 1950s through the 1980s, and it’s what we replace most often. The insulation wrapping degrades after decades of 140-160°F attic heat, and the plastic liner cracks where it bends around trusses. We source new flex duct from Abatement Technologies and install it with proper support straps so it doesn’t sag and collect condensation. Flex duct repair in Bellaire typically runs $180-$340 per run, with full replacement of an aging ranch system at $900-$1,800.
Metal Duct Repair
Some Bellaire ranches and a few custom rebuilds use galvanized steel ductwork. Metal lasts longer but corrodes where condensation pools, and seams can separate after decades of thermal expansion. We patch corroded sections, re-seal joints with mastic, and reinforce weak points. Metal duct repair in Bellaire generally runs $320-$580 depending on accessibility and extent of corrosion.
Duct Insulation
Insulation is what keeps 55°F conditioned air from turning into 140°F attic air before it reaches your bedroom. In Bellaire’s climate, degraded insulation is often the real problem behind “my AC can’t keep up.” We install fresh fiberglass wrap or foil-faced insulation on repaired runs, with particular attention to plenum connections where heat gain is highest. Duct insulation work in Bellaire typically adds $150-$300 to a repair job, or $400-$700 as a standalone service on accessible systems.
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 Bellaire
We carry Rotobrush and Nikro equipment for duct access and debris removal, and we stock Honeywell and Aprilaire filtration components for post-repair upgrades. These aren’t proprietary tools with made-up names. You can look up every model we use, compare specifications, and verify they’re recognized in the HVAC trade. For Bellaire homeowners who want to research before calling, that transparency is the point. We don’t perform equipment swaps without documenting the old and new components in your job record.
Common Duct Repair & Sealing Problems We See in Bellaire Homes
- Duct tape failure in attic heat. The silver tape on your flex duct was never designed for 140-160°F attics. It dries, cracks, and peels within 2-4 years in Bellaire’s climate, opening gaps that pull humid Gulf air directly into your system. We see this on nearly every ranch home built before 1990.
- Construction debris in new rebuilds. The 4,000-6,000 sq ft homes going up on Bellaire’s teardown lots often have multi-zone systems that ran during construction to dry drywall mud and paint. Drywall dust, wood particulate, and insulation fragments settle in duct runs and get recirculated through supply registers. The first owner moves in breathing construction waste.
- Harvey moisture wicking into attic ducts. Homes near Brays Bayou that took on even minor floodwater in 2017 often developed mold inside flex duct insulation years later. Moisture traveled up wall cavities into attic spaces, and the contamination wasn’t visible until musty odors started coming from supply registers. We’ve replaced dozens of these runs in the Braeswood and Evergreen areas.
- Crushed or kinked flex duct from storage or pest activity. Bellaire’s compact lots mean attics get used for storage. Homeowners or handymen step on flex runs, crushing them flat. Squirrels and roof rats also damage insulation and duct walls. A crushed run can reduce airflow to a room by 50% or more.
Pricing for Duct Repair & Sealing in Bellaire, TX
Here’s what duct repair and sealing actually costs in Bellaire’s market. These are whole-system prices, not per-vent teasers that balloon once the truck arrives.
| Service | Typical Range in Bellaire |
|---|---|
| Duct sealing (single system) | $280-$450 |
| Duct sealing (multi-zone) | $550-$750 |
| Flex duct repair (per run) | $180-$340 |
| Full flex duct replacement (ranch home) | $900-$1,800 |
| Full flex duct replacement (large rebuild) | $1,200-$2,800 |
| Metal duct repair | $320-$580 |
| Duct insulation (add-on) | $150-$300 |
| Duct insulation (standalone) | $400-$700 |
What moves you within these ranges: attic accessibility (tight crawl vs. walkable), number of duct runs, whether we can repair or must replace, and whether mold remediation is needed before sealing. We inspect first, photograph what we find, and deliver a written price before any work starts. Haven Standard Clause 1. No exceptions.
Bring a competitor’s written estimate and we’ll provide a Free Second Opinion at no cost. Our number goes next to theirs, line by line, so you can compare actual scope.
We Also Serve Cities Near Bellaire
Our crews work throughout the southwest Houston metro. We regularly schedule Duct Repair & Sealing in Bellaire alongside jobs in Stafford, Missouri City, Sugar Land, and Houston proper. Dispatch and scheduling are coordinated from our Houston office, with local crews serving each area.
Serving Bellaire, TX - Our Local Coverage Area
We’re based in the Bellaire 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 Bellaire
New construction ductwork in Bellaire is frequently contaminated with drywall dust, wood particulate, and insulation fragments from the build process. The HVAC system runs during construction to dry paint and mud, pulling that debris directly into duct runs and onto coils. We recommend a full cleaning and inspection before occupancy, with photographic documentation of what was removed. Call (346) 253-1822 to schedule a pre-move-in inspection.
No. Fogging deposits chemical residue on duct surfaces but does not remove the source of contamination. If your Bellaire home has mold from Harvey moisture or construction debris in a new build, the problem is physical material inside the duct run. We perform source removal with negative-pressure extraction and HEPA filtration, then seal with mastic. The photo record shows what left the duct, not what chemical was sprayed in. Save your money.
Yes. We were called to a 1955 ranch near Brays Bayou where the homeowner kept smelling musty air from the supply registers. Our tech ran a camera inspection and found flex duct runs in the attic had wicked moisture up from wall cavities that took on minor Harvey floodwater, feeding microbial growth inside the insulation. We performed source removal with negative pressure and HEPA filtration, replaced the saturated flex runs, then sealed the plenums and joints with mastic-no fogging upsell, just fixing the actual contamination pathway. If your home flooded in 2017 and you’ve never had ducts inspected, the growth may be hidden in insulation you can’t see from the register. Call (346) 253-1822 for a camera inspection.
Standard duct tape adhesive degrades above 140°F, and Bellaire attics routinely reach 140-160°F from May through September. The tape dries, cracks, and releases within 2-4 years. We see this on nearly every pre-1990 ranch we inspect. We replace failed tape with mastic compound and high-temperature metal-backed tape rated for sustained heat exposure. Mastic remains flexible and sealed for 10-15 years under these conditions.
MERV 8-11 is appropriate for most Bellaire homes after duct sealing. Higher MERV ratings (13-16) restrict airflow and can strain older systems, particularly the original HVAC equipment in 1950s-70s ranches. After we seal your ductwork and verify airflow with a manometer, we can recommend the highest filtration level your system can handle without efficiency loss. We stock Honeywell and Aprilaire filters in common sizes for Bellaire installations.
Ready to see what’s actually in your ducts? Call (346) 253-1822 for a free estimate with a written price before any work starts. We’ll bring the camera, show you the photo record, and let the evidence speak.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Pearland, serving Bellaire since 2013.