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 duct replacement after flood damage running $1,800-$4,200 depending on system size. We dispatch crews to Bellaire from our Houston office, and most Bellaire appointments are scheduled within 2-4 business days. Call (346) 251-8919 for a written estimate before any work begins.
We’ve worked in Bellaire since 2013, from the mid-century ranches along South Rice Avenue to the newer builds near Evergreen Street. Our Duct Repair & Sealing team knows the difference between a dry-side home with ordinary flex-duct failure and a flood-zone property where water got into the ductwork. That distinction matters. The wrong call costs thousands, and the right call requires looking inside with a camera before quoting anything.
Why CleanRun Air Duct Cleaning Houston Is Bellaire’s Preferred Duct Repair & Sealing Company
CleanRun is independently owned and operated under the Haven Standard, not a franchise, and we’ve served over 52,000 homes since 2013. Every job starts with a written price and ends with a Documented Photo Record of every duct run, before and after. No exceptions.
In Bellaire specifically, our reputation rests on post-flood work. After Hurricane Harvey, we handled dozens of homes where prior contractors had cleaned the visible surfaces but left sediment and mold inside the ducts. Our camera inspections found what others missed, and our written documentation helped homeowners secure insurance coverage for necessary replacements. Haven Standard Clause 1 requires that written price upfront; Clause 6 requires the photo record. Both protect Bellaire homeowners from the industry’s bait-and-switch pricing.
Our technicians are background-checked, uniformed, and identified by name before arrival, per Haven Standard Clause 3: Verified Crews. The equipment we bring to Bellaire includes Rotobrush agitation systems, Nikro negative-pressure extractors, and Honeywell monitoring tools - brands you can verify independently.
The 365-Day Done Right Promise applies to every Bellaire job in writing. If the work isn’t right, we make it right. Not a policy subject to manager approval. A written guarantee.
Our Duct Repair & Sealing Services in Bellaire
Duct Sealing
Duct sealing in Bellaire addresses the conditioned air leaking into attics and crawl spaces before it reaches your rooms. In the 1950s-1970s ranch homes that dominate Bellaire’s housing stock, original metal ducts were often sealed with fabric tape that degrades after decades of Houston humidity. We seal with mastic - a thick, brush-applied compound that hardens into a permanent airtight bond - and we verify results with a duct blaster test when the job is complete. Typical Bellaire duct sealing runs $280-$520 for a single system.
Flex Duct Repair
Flex duct retrofits are common in Bellaire pier-and-beam and slab crawl spaces, but they’re vulnerable. We’ve found crushed runs under homes near Jessamine Street, disconnected collars in the crawl spaces off Cedar Street, and sweating flex duct where the vapor barrier degraded. Bellaire’s subtropical humidity means AC systems run 9+ months annually, keeping ductwork cold relative to surrounding air. Without intact insulation, that temperature differential produces condensation and mold colonization. Flex duct repair in Bellaire typically runs $180-$340 per run, with replacement at $240-$480 per run depending on length and access.
Metal Duct Repair
Bellaire’s original galvanized sheet metal ductwork, common in homes built 1955-1975, corrodes at seams and can develop holes where supports have rubbed through. More critically, many of these systems have duct-board interiors that crumble once disturbed. On a ranch near Maple Street, our camera showed a 3-inch debris build-up at the first elbow, but agitation revealed the duct board behind it was disintegrating. We stopped, photographed the condition, and quoted replacement rather than proceed with a cleaning that would have released fiberglass into the home. Metal duct repair in Bellaire runs $320-$580; partial replacement of failed sections runs $680-$1,400.
Duct Insulation
Insulation replacement matters in Bellaire more than most Houston suburbs. The near-year-round cooling demand means ducts stay cold constantly. When insulation degrades or vapor barriers fail, condensation forms on the exterior, saturating surrounding materials and breeding mold. We install insulation with proper vapor barriers rated for Houston’s humidity, sealed with mastic at all joints. Duct insulation in Bellaire typically runs $450-$890 for a complete system, depending on access and linear footage.
Mastic Sealant Application
Mastic is our standard for all Bellaire sealing work, not tape. Tape fails in attics that reach 140°F in August. Mastic remains flexible and airtight. We brush-apply it to every seam, joint, and collar connection, then verify with visual inspection and pressure testing. This is included in our duct sealing pricing; standalone mastic touch-up for recently cleaned systems runs $180-$290.
Air Leak Repair
Air leaks in Bellaire homes often cluster around the plenum - the central distribution box where the air handler connects to the duct system. In post-flood renovations, we’ve found plenums that were replaced but poorly sealed to existing ducts, creating leakage rates above 25%. We disassemble, clean mating surfaces, and reseal with mastic and mechanical fasteners. Typical plenum leak repair in Bellaire: $340-$620.
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
Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - professional-grade tools we name so you can look them up before agreeing to any work. For Bellaire’s mix of legacy metal and modern flex systems, we stock local parts for fast turnaround on common repairs. No waiting on shipping for standard collars, connectors, or insulation wraps. If your system uses a specific component, we’ll tell you the manufacturer and model before we quote replacement.
Common Duct Repair & Sealing Problems We See in Bellaire Homes
- Flood sediment and mold behind renovated walls. Homes near Brays Bayou that flooded in 2015, 2016, or 2017 often had cosmetic cleaning but never source removal. The sediment remains in supply and return ducts, re-contaminating the air handler and coil every time the system cycles. Camera inspection finds it. Written documentation proves it.
- Crumbled duct board in original 1950s-1970s systems. Galvanized metal shells hold up, but the fiberglass duct board interior degrades into friable particles. Agitation tools that work fine on modern ductwork can destroy these interiors, releasing fibers into the airstream. We camera-inspect first and quote replacement when the board is compromised.
- Crushed or disconnected flex duct in crawl spaces. Bellaire’s pier-and-beam and slab crawl spaces are tight, hot, and humid. Flex duct gets crushed by storage, chewed by rodents, or disconnected at collars by vibration. Missing vapor barrier and degraded insulation cause sweating that rots surrounding structure. We photograph the condition before quoting repair or replacement.
- Condensation-driven mold in non-flood homes. Even on Bellaire’s higher dry side, 9+ months of annual cooling creates cold duct surfaces in warm, humid attics and crawl spaces. Without proper insulation and vapor sealing, mold colonizes the duct interior. We find it with camera inspection, remove it with negative-pressure extraction, and prevent recurrence with sealed insulation.
Pricing for Duct Repair & Sealing in Bellaire, TX
| Service | Typical Range in Bellaire |
|---|---|
| Duct sealing (single system) | $280 - $520 |
| Flex duct repair (per run) | $180 - $340 |
| Flex duct replacement (per run) | $240 - $480 |
| Metal duct repair (seam/patch) | $320 - $580 |
| Metal duct partial replacement | $680 - $1,400 |
| Duct insulation (full system) | $450 - $890 |
| Mastic sealant (standalone touch-up) | $180 - $290 |
| Air leak / plenum repair | $340 - $620 |
| Post-flood duct replacement (full system) | $1,800 - $4,200 |
These ranges reflect Bellaire’s housing stock and access conditions. Post-flood replacement costs vary widely based on how many runs were affected, whether the plenum and air handler need replacement, and whether mold remediation is required before new ductwork goes in. We deliver a written, line-item price before any work starts, per Haven Standard Clause 1. No per-vent pricing, no teaser coupons, no invoice inflation once the truck is in your driveway. Bring a competitor’s written estimate and we’ll provide a Free Second Opinion, our number next to theirs.
We Also Serve Cities Near Bellaire
Our crews work throughout the metro, including Duct Repair & Sealing in Bellaire and surrounding areas: Stafford, Missouri City, Sugar Land, and Houston. Scheduling is coordinated from our Houston office, with Bellaire appointments typically available within 2-4 business days.
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
It depends on what the camera shows. Floodwater that reached the duct interior leaves sediment lines, mold, and often degrades duct board or insulation. If the contamination is surface-only and the structural materials are intact, negative-pressure extraction with HEPA filtration can restore the system. If the camera shows sediment caked in return trunks, mold on deteriorating duct board, or moisture readings above 16% in porous materials, we recommend replacement of affected runs. We document everything with photos and moisture readings for your insurer. Call (346) 251-8919 for a camera inspection and written scope.
Because “fully renovated” often means new drywall, flooring, and cabinets, not new ducts. We’ve camera-inspected Harvey-renovated homes near Cedar Street where the return trunk behind the new wall still held flood sediment and mold, and where the floor-level air handler had been replaced but the connecting ductwork was never touched. That contamination recirculates through the new equipment and into the new finishes. The only way to know is to look inside with a camera. We include the photo record in our standard deliverable.
We access the duct system at the plenum and major junctions, remove old failing tape, clean mating surfaces, and brush-apply mastic to every seam, joint, and collar. For the metal ducts common in 1950s-1970s Bellaire ranches, we also inspect for corrosion holes and rub-through at support points. We then pressurize the system and measure leakage with a duct blaster. A well-sealed system should leak less than 10% of total airflow; many unsealed Bellaire systems leak 25-40%. The whole process takes 3-5 hours for a typical single-system home.
Bellaire’s subtropical humidity and 9+ months of annual cooling create ideal conditions for condensation inside and on ducts. When cold air runs through metal or flex duct in a hot, humid attic or crawl space, any gap in insulation or vapor barrier produces surface moisture. That moisture feeds mold spores that are always present in Houston air. Homes on the higher dry side of Bellaire, away from Brays Bayou, see this pattern constantly. Proper insulation, vapor sealing, and occasional camera inspection catch it before it spreads.
We provide a written condition report with dated, geotagged photos of every duct run interior, moisture meter readings at multiple points, and a scope of work with line-item pricing. This documentation has been accepted by insurers for Bellaire claims related to Hurricane Harvey and subsequent flood events. We do not begin replacement work until you have the documentation in hand and have submitted it to your adjuster. Haven Standard Clause 6 requires this photo record on every visit; for insurance purposes, we format it specifically for adjuster review. Call (346) 251-8919 to schedule a documentation visit.
Schedule Duct Repair & Sealing in Bellaire
Call (346) 251-8919 to speak with a live person, 24/7. We’ll schedule a camera inspection, deliver a written price before any work starts, and leave you with a Documented Photo Record of every duct run. The 365-Day Done Right Promise applies in writing. Free Second Opinion available on any competitor’s written estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Bellaire since 2013.
Duct Repair & Sealing in Nearby Areas