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 Spring
Duct repair and sealing in Spring, TX typically costs $280-$650 for most residential jobs, with flex duct replacement running higher when attic access is tight. We dispatch crews to Spring from our Houston coordination office, and most Spring homeowners get a written quote the same day they call. If your vents are pushing less air than they used to, or your upstairs rooms won’t cool below 78°F in July, the problem is often in the attic, not the condenser. Call (346) 423-3631 and we’ll send a technician with a camera, a written price sheet, and no coupon to scan.
We’ve worked in Spring since 2013. We know the Gleannloch Farms attic hatches, the tight crawl spaces off Cypresswood Drive, and the original 1980s flex duct still running through Northgate Forest homes. That local familiarity matters because Spring’s housing stock and climate create failure modes you won’t find in a manual written for Phoenix or Chicago.
Why CleanRun Air Duct Cleaning Spring Is Spring’s Preferred Duct Repair & Sealing Company
Our reputation in Spring is documented, not declared. We’ve served over 52,000 homes across the Houston metro since 2013, and Spring has been a core service area from the start. Our Google reviews from Spring customers specifically mention the photo records we deliver - one Gleannloch Farms homeowner wrote that our before-and-after images of his delaminated flex duct were the first time anyone had shown him what was actually in his attic.
Response time to Spring is same-day or next-day for standard scheduling. We don’t stage urgency theatre with “only two slots left” countdowns. We answer calls with a live person 24 hours a day, confirm your appointment in writing, and text the technician’s name and photo before arrival. Haven Standard Clause 3: Verified Crews means that name and photo are real, and the background check behind it is documented.
Spring homeowners tend to research before they call. They bought into neighborhoods like Champions and Cypresswood at price points where they expect documentation, not assurances. We deliver written prices before work starts, photo records when we leave, and a 365-Day Done Right Promise backed in writing on every job. That’s the H.A.V.E.N. Standard, and it’s been our operating framework since our first job.
Our Duct Repair & Sealing Services in Spring
Duct Sealing
Spring homes lose 20-30% of conditioned air through leaks at joints, boots, and plenum connections - a bigger penalty here than in drier climates because that lost air is replaced by 140°F attic air pulled backward through gaps. Our duct sealing service starts with a pressure test to locate leaks, then reseals every joint with mastic sealant (the brush-applied compound that hardens into a permanent gasket, not tape that dries and falls off in attic heat). In Spring’s humidity, proper sealing is moisture control first, energy savings second. A typical duct sealing job in Spring runs $280-$450 for a single-system home.
Flex Duct Repair
Flex duct is the ribbed, insulated tubing that carries air from your plenum (the main distribution box) to each room’s register. In Spring, essentially all of it runs through unconditioned attics because our high clay water table makes basements impossible. Those attics hit 140-160°F in summer. After 25-45 years of that heat cycling - the exact age of flex duct in Gleannloch Farms, Northgate Forest, and the Cypresswood corridor - the inner mylar-and-fiberglass liner begins to delaminate. We repair sections where damage is localized, replacing the run when delamination is extensive. Flex duct repair in Spring typically runs $180-$340 per run; full replacement of a compromised system runs $1,200-$2,800 depending on home size and attic access.
Metal Duct Repair
Some Spring homes, particularly older builds near the original Champions area, have galvanized steel trunk lines with flex duct branches. Metal ducts don’t delaminate, but they corrode at seams and can separate at joints after decades of vibration. We repair metal duct with proper sheet-metal patches and seal with mastic, not foil tape that fails in attic heat. Where metal trunk lines are intact but leaking, repair is often more cost-effective than full replacement. Metal duct repair in Spring runs $320-$580 for most jobs.
Duct Insulation
When 72°F conditioned air travels through a 150°F Spring attic, the duct exterior sweats. That condensation wets surrounding insulation, compresses it, and eventually breeds microbial growth on the duct jacket. We re-insulate with formaldehyde-free fiberglass wrap or closed-cell foam where appropriate, always after sealing the underlying duct. Insulation without sealing first is pointless - the leak will just wet the new material. Duct insulation in Spring typically adds $140-$260 to a sealing job, or $480-$820 as a standalone service.
Mastic Sealant Application
Mastic is the thick, fiber-reinforced compound we brush onto every joint and seam. Unlike pressure-sensitive tape, mastic remains flexible after curing and withstands the expansion and contraction that destroys adhesive bonds in Spring’s extreme attic temperature swings. We apply mastic to a minimum 2-inch overlap on all connections. This is standard on every sealing job we perform - not an upsell, not an option. The material itself is inexpensive; the labor is in the access and the thoroughness. We document every sealed joint with a photo in your job record.
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 professional-grade tools from Nikro, Honeywell, and Abatement Technologies - brands you can look up independently before you agree to any work. We stock common flex duct diameters, mastic compounds, and insulation wraps at our Houston coordination office, so Spring jobs aren’t delayed waiting for parts. Our negative-pressure extraction systems are manufactured by Nikro; our HEPA filtration and air quality monitoring equipment comes from Abatement Technologies. We name these brands because we want you to verify what we’re using, not take our word for “professional-grade” as a vague claim.
Common Duct Repair & Sealing Problems We See in Spring Homes
- Inner-liner delamination on 1980s-1990s flex duct. In Champions-area homes off Cypresswood Drive, we regularly pull sections of original flex duct whose mylar-and-fiberglass liner has separated from the wire helix, shedding strands into the airstream that homeowners mistake for dust or poor outdoor air quality.
- Lost mastic at flex-duct joints and boots. The original sealant applied 30-40 years ago has dried and cracked, letting 140°F attic air get pulled into supply runs. That hot, humid air condenses on the cool duct interior, creating the moisture that supports microbial growth.
- Sagging flex duct at support points. Decades of attic heat weaken the plastic straps that hold flex duct in place. The sag creates low points where debris and condensation collect, restricting airflow and accelerating liner degradation.
- Post-Harvey moisture intrusion in lower duct runs. Hurricane Harvey flooded many Spring neighborhoods in 2017. Ground-floor and basement-level ductwork (where it exists in slab-on-grade construction) absorbed moisture that still shows up as corrosion, mold staining, or compressed insulation in homes that weren’t fully remediated.
Pricing for Duct Repair & Sealing in Spring, TX
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts - and that price should never be a surprise.
| Service | Typical Range in Spring |
|---|---|
| Duct sealing (single system) | $280 - $450 |
| Flex duct repair (per run) | $180 - $340 |
| Metal duct repair | $320 - $580 |
| Duct insulation (add to sealing) | $140 - $260 |
| Full flex duct replacement | $1,200 - $2,800 |
What moves a job toward the higher end: attic access difficulty (tight hatches, steep pitches), number of duct runs, extent of delamination requiring full replacement versus localized repair, and whether we find secondary moisture damage from failed seals. What doesn’t affect price: how many vents you have. We price per system, not per vent. No bait-and-switch with a low per-vent teaser that balloons once we’re on site.
Every estimate is free. We inspect with a camera, show you what we found, and deliver a written price before any work begins. Bring a competitor’s written estimate and we’ll provide a free second opinion, our number next to theirs.
We Also Serve Cities Near Spring
Our crews work throughout the northern Houston metro. We regularly perform Duct Repair & Sealing for homeowners in Humble, Tomball, Houston, and Conroe. Scheduling and dispatch are coordinated from our Houston office, with Spring served as a local route, not a distant add-on.
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
Spring’s Gulf Coast humidity and attic-routed flex duct create a condensation problem Dallas doesn’t face. Because our high clay water table prevents basements, every home here pushes 72°F air through 140-160°F attic space; the temperature differential causes duct sweating, and Harris County’s 70%+ relative humidity provides the moisture that supports microbial growth inside the run itself. Dallas has heat, but drier air and more basement routing mean less condensation at the duct wall. Call (346) 423-3631 for a camera inspection - estimates are free.
No. Fogging mist reaches the duct interior but does not remove the biofilm or delaminated liner that harbors it. The antimicrobial evaporates, leaving the physical contamination in place to regrow. Source removal under negative pressure with HEPA filtration - what we perform - physically extracts the material. Fogging without source removal is an upsell that treats a symptom while the cause remains. We don’t offer it as a standalone service, and we’ll tell you plainly if your ducts need physical repair, not chemical misting.
The camera tells the story. Localized tears or separated joints at boots can be repaired. Widespread inner-liner delamination - the mylar-and-fiberglass shedding we find in original Champions-area and Cypresswood corridor ductwork - means the structural integrity is compromised and repair patches will fail. We show you the camera footage, explain which condition yours is in, and price both scenarios if the line is borderline. No guesswork, no pressure toward the more expensive option.
Hurricane Harvey in 2017 flooded neighborhoods throughout Spring, and moisture intrusion into ground-floor and lower-wall duct runs was common in homes that took water. Even where visible flooding was remediated, residual moisture in duct insulation compressed the material and created conditions for corrosion and mold staining that show up years later. We find this in post-2017 resale inspections more often than homeowners expect. A camera inspection reveals whether your ducts were affected even if you didn’t own the home in 2017.
In Spring, unsealed joints don’t just leak conditioned air - they actively pull 140°F, moisture-laden attic air backward into the supply run. That hot, humid air hits the cool duct wall and condenses, creating the moisture that grows mold and degrades the flex duct liner from the inside out. In a dry climate, a leak is an energy loss. Here it’s an energy loss plus a moisture generator plus an accelerated failure mode. Sealing is moisture control, not just efficiency.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Spring since 2013.