Fast, Reliable Duct Repair & Sealing Across Dickinson
Duct repair and sealing in Dickinson typically runs $180-$650 depending on whether we’re patching a single flex run or resealing an entire system, and most jobs are completed in one visit. Our crew covers all of Dickinson, including homes near FM 517, the Dickinson Bayou corridor, and the acreage properties stretching toward Bacliff, with same-day or next-day scheduling when you call (866) 347-2063. We’ve been driving these roads since 1984, and we know the difference between a quick suburban fix and the heavy-duty work Dickinson’s rural properties demand.
Dickinson isn’t a cookie-cutter suburb. The city sits along Dickinson Bayou in Galveston County, and its housing stock blends 1970s-1990s ranch-style homes on standard lots with acreage spreads that hold detached workshops, oversized garages, and outbuildings where ductwork or HVAC connections still need proper sealing. Our Duct Repair & Sealing team treats every property according to what it actually needs, not what fits a standard worksheet. That means heavier-gauge materials for oversized structures, mastic sealant rated for coastal humidity, and technicians who bring enough inventory to finish in one trip so you’re not waiting on a return visit.
We answer our phones live, 24 hours a day. No app. No voicemail maze. When Dickinson homeowners call, they want to talk to someone who knows the area and can dispatch a crew that same morning. That’s what we do.
Why Bellows Air Duct & Vent Co. of Texas Is Dickinson’s Preferred Duct Repair & Sealing Company
We’ve served the Dickinson market for over 42 years, long enough to have worked on homes before Hurricane Harvey and to have returned afterward to fix what the flood broke. Our reputation here was built on showing up when we said we would and standing behind the work with our 90-Day Done Right Promise, in writing, no arguing. Wade Kellerman has led this company since its founding, and his name is on every job.
Our technicians are background-checked and uniformed, and they arrive with professional-grade equipment from Rotobrush, Nikro, and Honeywell, the same brands serious HVAC contractors specify. We camera-inspect every duct system before we touch it and again when we’re done, so you see what we see, not just take our word for it.
Response time to Dickinson is same-day or next-day from our Houston base. We know the back roads from League City to Dickinson Bayou, and we don’t waste time finding properties on acreage lots with long driveways. Our pricing is disclosed upfront before a single tool is lifted, the number on the phone is the number on the invoice, and we offer a permanent 5% Senior and Veteran discount on every job.
Homeowners here are self-reliant. They want the job done right and never thought about again. That’s the customer we built this company for.
Our Duct Repair & Sealing Services in Dickinson
Mastic Sealant Application
Dickinson’s coastal humidity and salt-laden air destroy cheap tape and caulk. We use professional-grade mastic sealant, brushed or sprayed into joints and seams, that flexes with temperature swings and holds against the Gulf moisture cycle. In homes near Dickinson Bayou, where post-Harvey patchwork repairs left mismatched duct connections, mastic is often the only thing that properly bonds old fiberglass to new flex runs. Our crew recently sealed flex duct runs in a 1980s ranch-style home near FM 517 and Dickinson Bayou. The homeowner had persistent musty output post-Harvey, and we used Rotobrush agitation and mastic sealant to fix gaps from a patchwork of hastily replaced duct sections, restoring airflow and eliminating the smell. A typical mastic sealing job in Dickinson runs $220-$380 for partial system work, $450-$650 for full resealing.

Flex Duct Repair
Dickinson’s housing stock is dominated by ranch-style and slab-on-grade homes with flex ductwork routed through unconditioned attics. That flex degrades faster here than inland markets because attic temperatures spike higher and humidity never fully drops. Post-Harvey, many homes have a patchwork of original and hastily replaced duct sections, creating mismatched connections and gaps that accelerate debris accumulation. We repair or replace damaged flex runs with properly sized, insulated material, seal all connections with mastic, and camera-verify the finished work. Flex duct repair in Dickinson typically costs $180-$340 per run, with most homes needing 2-4 runs addressed.

Metal Duct Repair
Older metal duct systems in Dickinson’s 1970s-era homes suffer from corrosion at seams and joints, especially where floodwater sat in crawl spaces after Harvey. We patch small breaches with metal-backed tape and mastic, replace rusted sections with galvanized stock, and reinforce connections that have worked loose from decades of vibration. Metal duct repair in Dickinson runs $250-$480 depending on accessibility and extent of corrosion.

Duct Insulation
Neglecting to insulate repaired duct sections in unconditioned attics leads to condensation and mold regrowth in Dickinson’s humid coastal climate. We install closed-cell insulation or replace degraded fiberglass wrap on every repair we touch, ensuring the cold air stays cold and the metal doesn’t sweat. Duct insulation work in Dickinson typically adds $150-$280 to a repair job, or $300-$550 for full attic system wrapping.

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.
Trusted Brands We Service in Dickinson
We stock parts and equipment from Rotobrush, Nikro, Honeywell, and Aprilaire, the same brands that HVAC contractors in Galveston County specify for their own jobs. For Dickinson customers, that means faster turnaround because we’re not waiting on a parts run to Houston. Our Rotobrush agitation systems break loose debris in flex ducts that standard vacuums can’t touch. Honeywell and Aprilaire media filters and UV sanitizers integrate with sealed systems to keep them clean longer. When we seal your ducts, we do it with materials that match the coastal environment, not hardware-store shortcuts that fail in eighteen months.
Common Duct Repair & Sealing Problems We See in Dickinson Homes
- Incomplete sealing of mismatched duct connections from post-Harvey patchwork repairs. After 2017, many Dickinson homes got quick drywall and flooring fixes while ductwork was only dried, never properly cleaned or resealed. Those mismatched connections leak conditioned air into attics and draw in fiberglass and dust. We find this constantly in neighborhoods between FM 517 and the bayou.
- Oversized door thresholds in detached workshops that aren’t sealed properly. Dickinson’s acreage properties often have workshops or oversized garages with HVAC connections or pressurized air systems. When thresholds and wall penetrations aren’t sealed, pressurized air escapes and reduces system efficiency, forcing the main unit to work harder for diminishing returns.
- Neglected insulation on repaired duct sections in unconditioned attics. Even a properly sealed flex run will sweat and grow mold if the insulation jacket is torn or missing. Dickinson’s year-round humidity means condensation forms on any cold surface, and we’ve pulled apart “repaired” ducts that were dripping water onto ceiling drywall.
- Original flex duct from the 1980s still in service. In the ranch homes off Dickinson Avenue and near Bayou Vista, we regularly find flex duct that’s forty years old, brittle, and held together with deteriorating tape. It moves air, but it’s also moving attic dust and microbial growth into living spaces.
Pricing for Duct Repair & Sealing in Dickinson, TX
We’re transparent about numbers because Dickinson homeowners have been burned by low bids that ballooned at the door. Here’s what duct repair and sealing actually costs in this market:
| Service | Typical Range in Dickinson |
|---|---|
| Single flex duct repair/replacement | $180 - $340 |
| Mastic sealing (partial system) | $220 - $380 |
| Mastic sealing (full system) | $450 - $650 |
| Metal duct repair (per section) | $250 - $480 |
| Duct insulation (repair add-on) | $150 - $280 |
| Duct insulation (full attic wrap) | $300 - $550 |
What moves the price: accessibility (crawl space vs. walk-up attic), extent of Harvey damage that was never addressed, number of duct runs involved, and whether we’re correcting prior patchwork work. We disclose the full price before starting, and our $50 Off Any Repair Over $250 standing offer applies automatically. Estimates are free. Call (866) 347-2063.
We Also Serve Cities Near Dickinson
Our crews work throughout Galveston County and the near-coastal corridor. If you’re in Dickinson, Bacliff, League City, Santa Fe, or La Marque, we cover your area with the same response standards and upfront pricing. Acreage properties, suburban homes, or post-Harvey rebuilds, we adjust to what the property needs.
Serving Dickinson, TX - Our Local Coverage Area
We’re based in the Dickinson 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 Dickinson
Because drywall and flooring were replaced, but the ductwork inside your attic or crawl space was likely only dried, never professionally cleaned or resealed. Flood humidity seeded mold colonies in flex ducts and plenums that standard remediation doesn’t reach. We camera-inspect to locate the source, then use Rotobrush agitation and mastic sealant to remove growth and seal out future moisture intrusion. Call (866) 347-2063 for a free inspection.
Yes. Dickinson’s acreage properties often have detached workshops with HVAC connections or pressurized air systems that need heavier-duty sealing than standard residential ductwork. We use mastic sealant and reinforced materials rated for larger volumes and more demanding conditions. Most workshop sealing jobs run $280-$520 and are completed in one visit.
Every two to three years, or immediately if you notice uneven cooling, rising energy bills, or musty output. Dickinson’s position near Galveston Bay and Dickinson Bayou delivers year-round high humidity and salt-laden coastal air, meaning HVAC systems run 8-9 months annually under heavy load. That sustained operation accelerates seal degradation and microbial growth far faster than in drier inland Texas markets. We offer a $89 Seasonal Tune-Up that includes leak detection.
Yes. We regularly find post-Harvey flex duct replacements in Dickinson that were sized wrong, poorly connected, or never sealed at the plenum. We remove the mismatched sections, install properly sized flex with sealed connections, and camera-verify the repair. Most Harvey-related flex repairs run $220-$420 per run. If you have a written estimate from another company, we’ll give you a Free Second Opinion.
We use professional-grade mastic sealants, Rotobrush agitation systems for debris removal, and Nikro HEPA vacuum equipment for containment. For Dickinson’s coastal conditions, we specify sealants rated for high-humidity environments, not standard hardware-store products. Our 90-Day Done Right Promise covers every repair, and we camera-document before and after. Call (866) 347-2063 to schedule.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Dickinson since 1984.