Fast, Reliable Duct Repair & Sealing Across Gateway
Duct repair and sealing in Gateway, FL typically costs $180-$650 depending on whether you’re sealing accessible joints or replacing collapsed flex-duct runs, and most of our Gateway jobs are completed in a single visit the same day you call. We’re familiar with every major Gateway neighborhood from Villa Lago to Stoneybrook, and our technicians regularly make the run down Daniels Parkway or Treeline Avenue to reach homes in 33973 within the hour. If your vents are blowing weak, your AC runs nonstop, or you’ve noticed dust suddenly appearing on registers, there’s a fair chance your ductwork has cracked seals or collapsed runs in the attic. Call (844) 685-6342 - a live person answers, even at midnight.
Why Bellows Air Duct & Vent Co. Is Gateway’s Preferred Duct Repair & Sealing Company
We’ve been serving Southwest Florida since 1984, and Gateway has been on our route since the first homes went up off Daniels Parkway. Our Duct Repair & Sealing team knows the difference between a 1995 Villa Lago original and a 2006 Stoneybrook build, and that matters when you’re diagnosing duct failure in a concrete-block attic.
Gateway homeowners call us back because we show up when we say we will, we wear uniforms, and we don’t quote one price on the phone and another at the door. Our 90-Day Done Right Promise is stamped on every job - if it’s not right, we make it right, no paperwork, no arguing. That’s been our way for over 42 years.
Calls are answered by a live person, 24 hours a day. Not a voicemail. Not an app. A real person at our office who can dispatch a technician to Gateway tonight if your ductwork has separated and you’re heating your attic instead of your bedroom.
Our Duct Repair & Sealing Services in Gateway
Flex Duct Repair
Gateway’s housing stock is almost entirely flex duct routed through unconditioned attics, and that flex has a lifespan. In Southwest Florida’s attics, where temperatures regularly exceed 130-140°F, the inner liner of flex duct begins to degrade at 18-20 years. Gateway’s near-uniform construction window means thousands of homes are hitting that mark simultaneously. We replace collapsed, kinked, or delaminated flex duct with new R-6 or R-8 insulated runs, properly supported and sealed. We recently sealed a flex-duct run in a Villa Lago model on Treeline Ave where the builder-grade mastic had cracked after 18 years, allowing conditioned air to dump into the attic. Using a Rotobrush camera inspection, we identified a collapsed run from a shallow attic chase - common in post-2004 construction - and repaired it with new flex duct and mastic sealant, restoring full airflow to the master suite.

Duct Sealing
Even intact ductwork leaks. The average Gateway home loses 20-30% of conditioned air through gaps at plenums, register boots, and joints. We seal with professional-grade mastic and reinforced mesh, not duct tape - duct tape fails in months under attic heat. Our sealing work is camera-verified before and after, so you see the difference. In Gateway’s humid climate, every cubic foot of cooled air you lose to the attic is replaced by warm, moist air your AC must work harder to dry. Sealing pays for itself in reduced runtime.

Metal Duct Repair
Some Gateway homes, particularly earlier Villa Lago builds and custom homes near the golf course, have galvanized metal trunk lines with flex-duct branches. Metal ducts corrode in Florida’s humidity, and seams separate with thermal expansion. We repair metal duct with proper mechanical fastening and seal with high-temperature mastic. Where metal has rusted through, we section in new galvanized or switch to insulated flex for the run. Our Nikro equipment handles metal duct cleaning before sealing, so we’re not sealing dirt inside.

Duct Insulation & Mastic Sealant
Gateway’s attics are brutal on duct insulation. The original R-4 or R-6 insulation on flex duct compresses and breaks down over time, and once the vapor barrier is compromised, condensation forms on the duct surface during our six-month wet season. We re-insulate with fresh R-8 flex or wrap existing metal duct with fiberglass and vapor-barrier jacket. Mastic sealant is applied at every joint, every boot, every plenum connection - brushed on thick, allowed to cure before we pressurize the system for testing.

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 Gateway
We carry Rotobrush camera inspection systems and Nikro duct cleaning equipment on every truck, and we stock Abatement Technologies HEPA filtration accessories for homes where duct failure has released years of attic debris into the living space. For Gateway homeowners, this means no waiting on parts shipped from Tampa or Miami. Most repairs are completed in one visit because our trucks are loaded for the specific failure modes we know to expect in 1990s-2000s flex-duct systems. If your ductwork needs replacement, we specify the same materials serious HVAC contractors use - not the thin-wall flex some builders installed to save a few dollars per foot.
Common Duct Repair & Sealing Problems We See in Gateway Homes
- Kinked or partially collapsed flex duct from shallow attic chases. Post-2004 construction in Gateway often routed flex duct through tight chases with minimal support. The duct sags, kinks, or collapses entirely. You won’t see this on a thermostat check, but our camera finds it immediately - and your master bedroom stays hot for a reason.
- Cracked inner duct liners from 18-20 years of extreme attic heat. Gateway’s flex-duct systems are aging in lockstep, and the inner plastic liner degrades into particulate that blows through your registers. If you’ve noticed fine gray dust that keeps returning after cleaning, this is likely the source.
- Failed mastic seals at duct connections. Thermal cycling in Gateway’s attics - 140°F in summer, 50°F on the rare cold morning - causes builder-grade mastic to crack and separate. Conditioned air leaks into the attic, and your AC runs longer for no gain in comfort.
- Moisture infiltration during wet season. Gateway’s inland position means less Gulf breeze to dry things out. Once duct insulation is compromised, condensation breeds mold in flex-duct folds. We see this most in homes near wetland preserves where humidity lingers.
Pricing for Duct Repair & Sealing in Gateway, FL
We’re upfront about numbers because nobody likes a surprise on the invoice.
| Service | Typical Range in Gateway |
|---|---|
| Duct sealing (mastic, accessible joints) | $180 - $340 |
| Flex duct repair (single run replacement) | $280 - $520 |
| Flex duct repair (multiple runs, attic-wide) | $480 - $850 |
| Metal duct section repair | $320 - $580 |
| Duct insulation upgrade (R-8 wrap/replacement) | $380 - $720 |
| Full system camera inspection with report | $89 - $149 |
What moves the price: attic accessibility, number of runs affected, whether we can reach the damage from the attic hatch or need to open ceiling access, and whether we’re sealing existing duct or replacing degraded material. Every estimate is free, presented in writing before work starts, and honored at completion. We also offer $50 off any repair over $250, and a free second opinion if you’ve already got a written estimate from another company. Senior and veteran discounts of 5% apply permanently.
Call (844) 685-6342 for your exact quote - estimates are free, and we’re happy to explain what we find.
We Also Serve Cities Near Gateway
Our service area extends throughout eastern Lee County. We regularly run Duct Repair & Sealing in Gateway and surrounding communities including Lehigh Acres to the north, Fort Myers Shores along the river, Fort Myers proper to the west, and the Villas neighborhood near Daniels Parkway. Same trucks, same technicians, same upfront pricing.
Serving Gateway, FL - Our Local Coverage Area
We’re based in the Gateway 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 Gateway
Post-2004 construction in Gateway accelerated after Hurricane Charley’s damage to Lee County, and builders often installed flex duct quickly in shallow attic chases with minimal support strapping. The ductwork has less room to hang properly, so it sags and kinks under its own weight over time. Our camera inspection finds these collapses in minutes. Call (844) 685-6342 to schedule - estimates are free.
Yes, 18 years is exactly when Gateway’s flex-duct inner liners begin cracking under sustained attic heat above 130°F. The fine particulate you may notice on registers is degraded liner material entering your air supply. We recommend a camera inspection to assess condition, and we replace failing runs before particulate becomes a persistent air quality issue. Call (844) 685-6342 - we’ll show you what the camera sees.
Replacement with new R-6 or R-8 flex duct, properly supported and sealed with mastic at every joint, is the standard for Gateway’s CBS homes. Metal duct repairs are rare here but handled with mechanical fastening and high-temp mastic when encountered. Our 90-Day Done Right Promise covers every method we use - if airflow isn’t right, we return at no charge.
Yes, significantly. Sealing leaks prevents your AC from pulling warm, moist attic air into the system, which reduces the dehumidification load and shortens runtime. In Gateway’s climate, where AC essentially runs year-round, sealed ductwork typically pays back in 12-24 months through lower electric bills. Call (844) 685-6342 for a free estimate and pressure-test your system.
We recommend inspection every 3-5 years for Gateway homes under 15 years old, and every 2-3 years once your flex duct passes the 18-year mark. Given Gateway’s uniform housing age, many neighbors are facing simultaneous failures - proactive inspection catches liner degradation and seal failure before you’re heating your attic instead of your living room. Our $89 Seasonal Tune-Up includes basic duct assessment.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Gateway and Lee County since 1984.