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 Dickinson
Duct repair and sealing in Dickinson typically runs $340-$780 for most homes, with flex duct replacement pushing toward the higher end when flood-damaged sections need full removal. We’re local to the Dickinson Bayou area and usually schedule within 2-3 business days. Call (346) 253-1822 for a written estimate before any work starts.
Our crews know Dickinson’s housing stock. The slab-on-grade ranches off FM 517 and the tract homes near Bayou Vista were built from the late 1960s through the 1990s with flex ductwork that has now seen decades of Gulf Coast humidity, Harvey floodwater, and salt air. That combination creates failure modes you don’t see in inland Houston suburbs. We find crushed runs, disconnected joints, and mold lines marked by silt deposits. Our Duct Repair & Sealing team documents every finding with before-and-after photos, included as standard on every job.
Why CleanRun Air Duct Cleaning Pearland Is Dickinson’s Preferred Duct Repair & Sealing Company
We’ve served the Dickinson market since 2013, with over 52,000 homes documented across the region. Every job starts with a written price under Haven Standard Clause 1, and every duct run is photographed before and after. Dickinson homeowners receive the same photo record as our Pearland and League City customers, delivered as a standard deliverable, not an upsell.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We publish our license number on every page, not buried in a footer. Scheduling is coordinated from our Houston office, with crews dispatched locally to Dickinson. The 365-Day Done Right Promise applies here exactly as it does everywhere we work, backed in writing on every invoice.
We offer a Free Second Opinion on any written estimate from a competitor. Bring us the quote; we’ll put our number next to it in writing, no charge.
Our Duct Repair & Sealing Services in Dickinson

Flex Duct Repair
Dickinson’s 1970s and 1980s ranch homes rely heavily on original flex duct, the insulated flexible tubing that runs from plenum (the main distribution box) to each room’s register. This material absorbs moisture readily and does not recover well from flooding. We were called to a 1970s slab-on-grade ranch off Dickinson Bayou after the homeowner noticed musty air from the registers. During a camera inspection, our tech found a visible silt line inside the original flex duct about 18 inches up from the air handler, with crushed runs and disconnected joints behind it. We performed source removal under negative pressure with HEPA filtration, replaced the compromised flex sections, and sealed every joint with mastic and Guardsman mesh to stop the leaks. Flex duct repair in Dickinson typically runs $280-$520 per run, depending on length and accessibility through the attic or crawl space.

Mastic Sealant Application
Mastic is a thick, water-based sealant brushed or troweled onto duct joints and seams, far more durable than foil tape in humid conditions. In Dickinson, where sustained humidity above 85% RH degrades adhesive tapes within a few seasons, mastic is the correct specification. We apply mastic with embedded mesh reinforcement at every joint, transition, and penetration. A typical Dickinson home with 8-12 supply runs requires 3-4 hours of sealing work, priced at $340-$580. The photo record shows every sealed joint before insulation is reinstalled.

Air Leak Repair
Leaks in Dickinson ductwork often trace to two sources: physical displacement from floodwater movement, and corrosion from salt-laden coastal air. Disconnected collars, separated plenum seams, and rusted metal at the air handler cabinet are common findings. We pressure-test the system to quantify leakage, then repair with metal where possible and replace where necessary. Air leak repair in Dickinson ranges from $180 for a single disconnected joint to $640 for extensive metal repair with custom-fabricated transitions. Every repair is photographed and the pressure test results are included in the job record.

Duct Insulation Replacement
Flood-soaked insulation cannot be sanitized effectively; the fiberglass retains moisture and seeds mold even after the duct interior is cleaned. In Dickinson homes with Harvey water lines inside the structure, we frequently find insulation below the flood line that has never been replaced. We remove compromised insulation, repair the duct shell, and reinstall with fresh R-6 or R-8 flex with intact vapor barrier. Insulation replacement runs $220-$480 per run in Dickinson, depending on diameter and attic access conditions.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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AfterTrusted Brands We Service in Dickinson
We stock parts and materials from Abatement Technologies, Guardsman, and Aprilaire for Dickinson jobs, with common flex diameters and mastic compounds carried on every truck. Rotobrush camera systems allow us to inspect and document without multiple site visits. Most repairs in Dickinson neighborhoods like Bayou Vista and Dickinson Bayou Estates are completed in a single appointment because the crew arrives with materials matched to the local housing stock. If we encounter an unusual metal gauge or custom plenum configuration, we fabricate on-site rather than ordering and rescheduling.
Common Duct Repair & Sealing Problems We See in Dickinson Homes

- Crushed or disconnected flex runs from Harvey floodwater movement. Water pressure and debris impact displaced ductwork in slab-on-grade homes, creating pressure loss and pulling unconditioned, humid bayou air into the system. The camera shows the damage; we replace the run and seal the connections.
- Silt and bacteria deposits below the flood line that seed mold colonies. Standard cleaning removes loose debris but does not address mold embedded in porous flex liner or insulation. Sealing or replacement below the visible silt line is the only reliable fix.
- Salt-air corrosion of metal components and insulation degradation. Dickinson’s position between Dickinson Bayou and Galveston Bay exposes ductwork to salt-laden air that accelerates rust and breaks down vapor barriers faster than in inland suburbs like Santa Fe or League City.
- Disconnected joints from decades of vibration and thermal cycling. Original installations in 1970s and 1980s Dickinson ranches often used minimal mechanical fastening. We find collars separated by 1-2 inches, leaking conditioned air into attics and crawl spaces.
Pricing for Duct Repair & Sealing in Dickinson, TX
| Service | Typical Range in Dickinson |
|---|---|
| Mastic sealant, whole system (8-12 runs) | $340-$580 |
| Flex duct repair / replacement, per run | $280-$520 |
| Air leak repair, single joint | $180-$260 |
| Air leak repair, extensive metal work | $480-$640 |
| Duct insulation replacement, per run | $220-$480 |
| Full system inspection with photo record | $0 (free with any repair) |
These ranges reflect Dickinson’s housing stock and access conditions. Homes with limited attic clearance, such as the low-slope ranches near FM 646, may run toward the higher end. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No per-vent pricing, no coupon bait-and-switch. Call (346) 253-1822 for an exact quote on your system.
We Also Serve Cities Near Dickinson

Our crews work throughout the Galveston Bay area, including Duct Repair & Sealing in Dickinson and neighboring Santa Fe, League City, Seabrook, and Webster. Each city page details local conditions and pricing specific to that market.
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

Look for a visible silt or debris line inside the ductwork during register removal, or schedule a camera inspection. The line marks exactly how high floodwater rose; everything below it typically harbors mold and bacteria that standard cleaning cannot fully address. Sealing or replacement below that line is necessary. Call (346) 253-1822 for a free inspection and written scope.
Dickinson’s sustained humidity above 85% RH, salt-laden coastal air, and Harvey-era flood damage create faster degradation of tapes, insulation, and metal components than inland suburbs experience. Mastic sealant outlasts adhesive products in these conditions, but it must be applied correctly to bare metal. We include mastic sealing as standard on Dickinson repairs where tape has failed.
Yes. We replace compromised flex sections with new R-6 or R-8 insulated duct, sized to match the original airflow design, and seal with mastic and Guardsman mesh at every joint. The 1970s and 1980s ranches off Dickinson Bayou and near Bayou Vista are common sites for this work. Photo documentation shows the before condition and the completed repair.
We first identify the silt line with a camera, then remove all ductwork and insulation below that line. Compromised sections are replaced, remaining sections are HEPA-vacuumed and treated, and every joint is sealed with mastic and mesh reinforcement. The system is pressure-tested before closure. A typical Dickinson home with flood-line issues runs $580-$920 for sealing and partial replacement.
Homes with intact, post-Harvey repaired systems should be inspected every 3-5 years given Dickinson’s humidity and salt air. Homes with original pre-2017 flex duct should be inspected annually; the material degrades faster here than manufacturer specifications assume. We include a written condition report with every inspection so you can schedule based on documented need rather than calendar guesswork. Call (346) 253-1822 to book.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Dickinson since 2013.




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