Fast, Reliable Duct Repair & Sealing Across East Naples
Duct repair and sealing in East Naples typically costs $280-$650 for most residential jobs, with flex duct replacement running higher and simple mastic resealing on the lower end. We’re usually on-site within a few hours for East Naples calls, and most repairs are finished in a single visit. Call (844) 685-6342 for a free estimate and we’ll give you the exact number before any work starts.
We’ve been driving the same East Naples streets for over four decades, from the older neighborhoods off Rattlesnake Hammock Road to the CBS homes near the Gordon River estuary. Our technicians know the housing stock here - the 1960s through 1980s concrete-block construction, the original flex duct runs that have sagged and separated, the metal trunk lines corroding from salt-laden Gulf air. This isn’t generic Florida work. East Naples sits on the humid fringe of the Everglades ecosystem, where ambient mold spore counts from surrounding wetlands are among the highest in Southwest Florida, and with central AC systems running 10-12 months per year in aging homes, ductwork here accumulates biological growth at a pace that distinguishes it sharply from drier inland markets or even newer-build communities to the north in Naples proper. When your ducts are leaking 20-30% of your conditioned air into a hot attic, you’re not just uncomfortable - you’re paying to cool air that never reaches your living room.
Why Bellows Air Duct & Vent Co. Is East Naples’s Preferred Duct Repair & Sealing Company
Bellows Air Duct & Vent Co. has served Southwest Florida since 1984, and East Naples has been part of our route from the beginning. Homeowners here know us because we show up when we say we will, we wear uniforms, and we don’t hand you a surprise bill. Our Duct Repair & Sealing team is background-checked and trained on the specific failure modes of this area’s legacy housing stock.
We answer our phones with a live person, 24 hours a day. Not an app. Not a voicemail tree. A real person who can dispatch a technician to East Naples today. Most jobs are completed in a single visit because our trucks carry the parts and equipment to handle flex duct replacement, metal duct repair, mastic sealing, and insulation on the spot.
Our pricing is disclosed upfront before a single tool is lifted. The number we give on the phone is the number on the invoice. No bait coupons, no price changes at the door. And every job is backed by our 90-Day Done Right Promise - if it’s not right, we make it right, no paperwork, no arguing.
Our Duct Repair & Sealing Services in East Naples
Flex Duct Repair
In East Naples’ aging concrete-block homes, original flex duct runs from the 1960s-80s often have sagging sections that form low points trapping condensation and debris, a problem exacerbated by the area’s 53+ inches of annual rainfall and Everglades-adjacent humidity. We replace compromised flex duct with properly supported runs that maintain positive slope, eliminating the moisture traps that feed mold colonies. During a duct repair on a 1972 CBS home near the Gordon River estuary, our crew found that a previous DIY mastic job had concealed a separated flex duct joint; the sagging duct had been collecting standing water and mold for months. We replaced the compromised section, applied mastic sealant to the entire run, and insulated the supply side to prevent future condensation. A typical flex duct repair or partial replacement in East Naples runs $340-$580.

Duct Sealing
Leaky ducts are invisible but expensive. In East Naples, where AC runs nearly year-round, even a 15% leakage rate adds hundreds to your annual electric bill. We seal supply and return plenums, register boots, and trunk line connections using professional-grade methods that hold up in our high-humidity environment. Our camera inspection before and after shows you exactly what was leaking and what we fixed. Duct sealing for an average East Naples home typically runs $280-$450.

Metal Duct Repair
Original metal duct joints in 1960s East Naples homes corrode from years of salt-laden air, causing large air leaks at the seams. We repair or replace corroded sections, reseal joints with proper mechanical fasteners and mastic, and address the root cause when possible. Metal duct repair in East Naples generally runs $320-$620 depending on accessibility and extent of corrosion.

Duct Insulation
Supply-side flex ducts in poorly insulated East Naples attics sweat condensation during our June-through-September wet season, creating standing moisture inside the duct liner that feeds mold colonies. We install proper insulation barriers that keep the cool air inside and the humid attic air outside. Duct insulation work in East Naples typically runs $380-$720 for partial or full system coverage.

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.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in East Naples
We carry professional-grade equipment and materials from Rotobrush, Nikro, and Abatement Technologies - the same brands serious HVAC contractors specify. For East Naples homeowners, this means we don’t need to order parts and make you wait. Our trucks stock flex duct in common diameters, mastic sealant, mechanical fasteners, and insulation rated for Florida’s humidity. Most repairs are completed in a single visit because we arrive prepared for what your 1960s-1980s CBS home is likely to need.
Common Duct Repair & Sealing Problems We See in East Naples Homes
- Flex duct sags create moisture traps. In high-humidity East Naples attics, sagging flex duct sections collect condensation that can’t drain, creating standing water inside the duct liner. This reduces airflow to rooms at the end of the run and feeds mold colonies that blow spores into your living space every time the AC cycles on.
- Original metal duct joints corrode from salt-laden air. The 1960s homes in neighborhoods off Rattlesnake Hammock Road and near the Gordon River estuary have metal trunk lines with seams that have been breathing Gulf air for sixty years. The corrosion isn’t always visible from the outside, but our camera inspection reveals the gaps.
- Post-Hurricane Ian silt lines hide inside subfloor ducts. After the September 2022 storm surge swept through low-lying East Naples streets, many older CBS homes took on water that wicked into return-air chases and subfloor duct runs. Technicians in this ZIP regularly find silt lines and mold colonies inside ductwork that homeowners never connected to the storm, because the contamination is hidden behind registers and only becomes symptomatic months later.
- DIY mastic jobs conceal bigger problems. Homeowners sometimes try to seal visible leaks with hardware-store mastic, but without addressing the underlying separation or sag, the coating traps moisture against the duct surface and accelerates deterioration. We remove these bandages and fix the actual failure.
Pricing for Duct Repair & Sealing in East Naples, FL
We’re straightforward about numbers because we’ve been burned by contractors who weren’t, and we don’t operate that way.
| Service | Typical Range in East Naples |
|---|---|
| Duct sealing (mastic, joints, registers) | $280-$450 |
| Flex duct repair / partial replacement | $340-$580 |
| Metal duct repair / section replacement | $320-$620 |
| Duct insulation (supply lines) | $380-$720 |
| Full system assessment with camera inspection | $89-$150 (credited toward repair) |
What moves the number: accessibility (crawl space vs. attic), extent of damage, whether we’re matching existing materials or upgrading, and if mold remediation is needed before sealing. We offer $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount. Estimates are free. Call (844) 685-6342 and we’ll give you a firm quote before we start.
We Also Serve Cities Near East Naples
Our service area extends throughout Collier County. We regularly handle Duct Repair & Sealing in East Naples and surrounding communities including Naples Manor, Naples, Golden Gate, and Naples Park. Same live-answer dispatch, same 90-Day Done Right Promise, same upfront pricing.
Serving East Naples, FL - Our Local Coverage Area
We’re based in the East Naples 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 East Naples
Repair is usually the right call if the duct is accessible and the damage is localized to sags, separations, or small tears. Replacement makes sense when the flex duct is brittle, extensively mold-contaminated, or has been patched multiple times. In East Naples, the deciding factor is often moisture damage from trapped condensation - if the inner liner is compromised, replacement is the only lasting fix. A typical partial replacement runs $340-$580; full system replacement is higher. We’ll camera-inspect and show you exactly what we’re seeing. Call (844) 685-6342 for a free estimate.
Yes, mold on registers strongly suggests contamination inside the duct system, especially in East Naples homes that took storm surge or flooding in September 2022. Our technicians regularly find silt lines and mold colonies in return-air chases and subfloor ducts that homeowners didn’t connect to the storm because the damage is hidden. We camera-inspect to confirm extent and location, then clean or replace affected sections before sealing. Don’t wait for respiratory symptoms to confirm what the visible mold is already telling you. Call (844) 685-6342 - estimates are free.
Your supply ducts are colder than the dew point of the humid attic air surrounding them. In East Naples, where June-through-September relative humidity stays high and attics can reach 140°F, poorly insulated flex duct sweats condensation that pools in low spots and feeds mold. The fix is proper insulation on the supply side and ensuring positive slope so any condensation drains rather than collects. We address both. Call (844) 685-6342 for an assessment.
Mastic sealant can seal corroded seams and small gaps in metal ductwork, but it won’t restore structural integrity if the metal is perforated or the joint has separated. In East Naples, where salt-laden air has been attacking these seams for six decades, we often find that mastic alone is a temporary fix. We assess with a camera, repair or replace severely corroded sections, then seal properly with mechanical fasteners and mastic for a lasting repair. Call (844) 685-6342 and we’ll show you what you’re working with.
Every 5-7 years for inspection, with resealing as needed based on condition. East Naples’s combination of near-constant AC operation, high humidity, and aging housing stock means duct systems degrade faster here than in drier climates. If your home is pre-1990 and hasn’t been assessed since Hurricane Ian, we’d recommend a camera inspection now - storm damage and deferred maintenance compound quickly in this environment. Our $89 seasonal tune-up includes a basic duct assessment. Call (844) 685-6342 to schedule.
Ready to stop losing cooled air to your attic and breathe cleaner air in your East Naples home? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate. We’ll give you an honest price before we start, back the work with our 90-Day Done Right Promise, and leave you with camera-verified results you can see.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving East Naples since 1984.