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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After
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AfterFast, Reliable Duct Repair & Sealing Across Spring
Duct repair and sealing in Spring, TX typically runs $280-$850 for most residential jobs, with full flex-duct replacement in flood-affected homes reaching $1,200-$2,400 depending on system size. We dispatch crews to Spring from our Houston coordination office, and most Spring appointments are scheduled within 2-4 business days. Call (346) 251-8919 for a written estimate before any work starts.
We’ve worked in Spring since 2013, and the housing stock here tells a specific story. Thousands of homes in Cypresswood, Springwood, and Spring Shadows were built during the tract-home boom from the late 1970s through the mid-1990s with flex-duct systems running through unconditioned attics. Those attics hit 140°F+ in summer. After 30-40 years, that flex duct sags, disconnects at takeoffs, and traps moisture. Then there’s the flooding. Cypress Creek’s repeated inundations, most catastrophically during Harvey in 2017, drove contaminated water into return-air plenums and low-lying duct runs across northern Harris County. Many Spring homes still carry hidden post-flood mold inside ductwork that standard cleaning checklists elsewhere wouldn’t think to address. That’s why our Duct Repair & Sealing team approaches Spring homes differently than homes in dryer climates or newer subdivisions.
Why CleanRun Air Duct Cleaning Houston Is Spring’s Preferred Duct Repair & Sealing Company
Spring homeowners research before they call. We built our process around that.
Every job starts with a written price delivered before any panel comes off, every time, under Haven Standard Clause 1. No “call for a quote.” No per-vent teaser rates that balloon once the truck is in the driveway. The price we write is the price you pay.
Our documented photo record shows you what we found. Inside every duct run, before and after, with timestamps. Since 2013, we’ve served 52,000+ homes with this standard deliverable. In Spring specifically, that documentation has become critical for insurance claims on flood-related duct damage.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. The equipment we bring includes Rotobrush, Nikro, and Guardsman systems - brands you can look up independently before agreeing to anything.
The 365-Day Done Right Promise backs every job in writing. If it’s not right, we make it right. Not a policy subject to manager approval. A written guarantee.
Our Duct Repair & Sealing Services in Spring
Duct Sealing
Spring’s high humidity and near-constant AC operation put extraordinary pressure on duct joints. We seal supply and return trunk lines with mastic sealant, not tape alone, because tape degrades in our attic heat. A typical duct sealing job in Spring runs $280-$550 for a single-system home. We photograph every sealed joint for your job record.
Flex Duct Repair
This is where Spring’s housing stock shows its age. Flex duct installed in the 1980s and 1990s across Springwood and Cypresswood has insulation that breaks down, collars that separate at takeoffs, and sagging runs that restrict airflow. Attic temperatures above 140°F accelerate the deterioration. We replace damaged flex sections with new R-6 or R-8 insulated duct, support it properly to prevent future sagging, and seal all connections with mastic. Single flex run replacement in Spring typically costs $180-$340; multiple runs or full attic replacement runs $650-$1,400.
Metal Duct Repair
Older Spring homes and custom builds in areas like Spring Shadows sometimes have galvanized steel trunk lines. We repair separated seams, corroded sections, and failed dampers. Metal duct repair in Spring generally ranges from $320-$680 depending on accessibility and extent of corrosion from our humid climate.
Duct Insulation
Replacing degraded duct insulation is critical in Spring. When insulation loses its vapor barrier, warm humid attic air contacts the cool duct surface and condenses. That moisture feeds mold and reduces system efficiency. We install new foil-faced insulation on accessible trunk lines and replace saturated flex duct where the insulation itself has failed. Duct insulation work in Spring typically runs $450-$950 for partial systems, $1,100-$2,200 for full replacement in larger homes.
Mastic Sealant Application
We emphasize mastic on this page for a reason. In Spring’s climate, tape fails. Mastic, specifically Guardsman-brand fiber-reinforced water-based sealant, remains flexible and bonded through thermal cycling and humidity swings. We brush-apply it to all joints on repaired or replaced duct sections, then photograph the finished work. This is standard on every Spring job, not an upsell.
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 Spring
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation inside duct runs, Nikro negative-pressure extractors for debris removal, and Honeywell and Aprilaire components for damper and control replacements. We stock common flex duct diameters, collars, and mastic supplies so Spring jobs aren’t delayed waiting for parts. Every brand we name can be verified independently - we don’t make performance claims beyond manufacturer specifications.
Common Duct Repair & Sealing Problems We See in Spring Homes
- Post-flood return plenum boxes left in place after Harvey. The original duct board’s kraft-facing paper re-wicks moisture and feeds mold into supply and return ducts for years. We camera-inspect these plenums and document what standard visual checks miss.
- Contractors sealing over saturated flex duct joints without source removal. This locks moisture into the assembly and accelerates insulation breakdown. We remove saturated material before sealing anything.
- Attic-mounted air handlers causing flex duct to sag and disconnect at takeoffs in 140°F+ heat. Crews often repair only the visible closet-run tear and miss the disconnected run above the garage. We inspect the full distribution system, not just what’s easy to reach.
- Microbial growth in low-lying duct runs years after Cypress Creek flooding. Contaminated air drawn through flooded return plenums during and after each event colonizes downstream ductwork. We find this in Spring homes that had “clean” post-flood inspections.
Pricing for Duct Repair & Sealing in Spring, TX
Here’s what duct repair and sealing costs in Spring’s market:
| Service | Typical Range |
|---|---|
| Duct sealing (mastic, single system) | $280-$550 |
| Single flex duct run replacement | $180-$340 |
| Multiple flex runs / partial replacement | $650-$1,400 |
| Metal duct repair | $320-$680 |
| Duct insulation replacement (partial) | $450-$950 |
| Full flex-duct system replacement | $1,200-$2,400 |
| Post-flood plenum / return box replacement | $380-$720 |
Factors that move Spring jobs toward the higher end: system size (homes over 3,500 sq ft with multiple air handlers), attic accessibility, extent of flood damage requiring remediation documentation, and whether the home has been previously “repaired” by crews who sealed over problems rather than removing them. We deliver a written price before any work starts, every time. Estimates are free. Call (346) 251-8919.
We Also Serve Cities Near Spring
Our crews work throughout the northern Harris County area. We regularly schedule Duct Repair & Sealing in Spring alongside jobs in Humble, Houston, Bellaire, and Pasadena. Dispatch and scheduling are coordinated from our Houston office; crews serve Spring locally without the delay of routing from distant hubs.
Serving Spring, TX - Our Local Coverage Area
We’re based in the Spring 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 Spring
If your return plenum or low-lying duct runs took on water, replacement is usually required for saturated components; repair with sealing is only appropriate for sections that remained dry and show no microbial growth on camera inspection. In Spring’s Cypress Creek-adjacent subdivisions, we routinely find that duct board’s paper facing re-wicks moisture for years, making visual dryness misleading. We provide NADCA-standard photo documentation that shows insurers exactly what was saturated versus what could be salvaged. Call (346) 251-8919 for a camera inspection and written scope.
Duct cleaning alone is rarely sufficient after floodwater intrusion into return plenums or low duct runs; the porous materials - duct board, flex duct insulation, kraft paper facing - retain moisture and microbial reservoirs that mechanical cleaning cannot fully remove. We assess with camera inspection and moisture meters, then document which sections require source removal versus which can be cleaned and sealed. For Spring homes with post-Harvey or post-2015/2016 flood exposure, we typically recommend replacement of affected plenum boxes and downstream flex runs. The written scope we provide separates cleaning from replacement so you can make an informed decision.
Flex duct installed in Spring’s 1980s tract homes was designed for 25-year service life in moderate conditions, not 30-40 years in attics that exceed 140°F for months annually; the wire helix relaxes, insulation compresses, and adhesive at takeoff collars degrades. Spring’s Gulf Coast humidity adds condensation stress when insulation integrity fails. We replace sagging runs with properly supported new flex duct, upgrade to R-8 insulation where accessible, and seal all connections with mastic rather than tape. A typical 1980s Spring home needs partial flex replacement every 25-30 years; many are well past that mark.
Mastic remains flexible and bonded through the thermal expansion and high humidity that degrades tape adhesive and causes spray sealants to crack in Spring’s attic conditions; it’s brush-applied as a thick coating that fills irregular joint surfaces and creates a continuous seal. We use Guardsman fiber-reinforced water-based mastic on every Spring job, applied to all repaired or replaced joints, then photographed for your documentation. Tape is temporary. Mastic is permanent. In a climate where your AC runs ten months a year, permanent matters.
Yes - we provide NADCA-standard photo documentation, moisture meter readings, and written scope of work that insurers routinely accept for Spring flood-related duct damage claims. Our field vignette: a homeowner in Cypresswood near Cypress Creek called with a musty smell in the primary bedroom after their return plenum had taken on water during the 2017 flood; our tech used a camera inspection through the return drop and found microbial growth on the original 1984 duct board. We applied Guardsman mastic sealant to the remaining intact trunk, replaced the saturated return box and low-lying flex runs, and provided the homeowner with documentation that their insurer accepted. Every Spring flood-related job follows this documentation standard. Call (346) 251-8919 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Spring since 2013.