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 Sealing Across Naples
Duct sealing in Naples typically costs $450 – $1,200 for a whole-home system, with most jobs completed in a single visit after a written estimate. We dispatch crews from our Miami office to serve Naples, Bonita Springs, and Marco Island, and we schedule around the seasonal rush that hits every October when snowbirds return to find musty, compromised ductwork. Call (361) 326-5060 for a free estimate with a written price before any work starts.
We’re familiar with the duct layouts common in Naples: short flexible runs in closet-mounted air handlers, multi-return condo systems in Pelican Bay, and the zoned multi-story setups in newer north Naples builds. That local knowledge matters because sealing a Naples system means accounting for humidity loads and salt air exposure that inland Florida markets simply don’t face at the same intensity. Our Duct Sealing team treats every job under The Garrison Standard: arrive inside the window, price in writing, complete the work by the book, and leave the site clean.
Why Hollis Air Duct Cleaning Is Naples’s Preferred Duct Sealing Company
Hollis has been part of the Garrison Partners family since 2004, and our Naples customers know us for showing up when we said we would and charging what we quoted. We don’t compete on teaser prices or coupon bait; we compete on discipline. Every technician is background-checked and uniformed, and every repair carries our 365-Day Done Right Promise in writing. If the seal fails within a year, we return and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday for a scheduling answer. Our Duct Sealing in Naples crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, and we stock filtration products from Aprilaire and Guardsman for fast turnaround on local jobs. When you’re dealing with an October musty-odor complaint or post-storm duct contamination, that responsiveness matters.
Duct Repair in Naples
Duct Repair in Naples addresses the physical damage that precedes or accompanies sealing failures: crushed flexible runs, corroded metal plenums, disconnected collars, and rodent damage in attic or soffit lines. Most Naples homeowners need duct repair when they notice hot rooms, whistling noises, or visible damage after a storm or during seasonal startup. A typical duct repair in Naples runs $280 – $650 depending on accessibility and material type.
Collar and Plenum Rebuilds
Closet-mounted air handlers in Naples condos and villas often suffer from failed plenum collars where flexible duct meets the unit. Heat and humidity cook the mastic loose, and the collar separates or sags. We cut back damaged flex, install a new draw-band connection, and seal with high-temperature mastic rated for attic and closet conditions. This isn’t tape work; tape fails in Naples humidity.
Post-Storm Impact Damage
After Hurricane Ian and subsequent tropical systems, we’ve found wind-driven debris, insulation, and salt-laden dust pulled into return ducts through compromised soffits or roof damage. Repair here means source-removing contamination under negative pressure with HEPA filtration before any sealing or reconstruction begins. Seal over that debris and you’ve trapped it in the system for the next season.
Air Duct Sealing in Naples
Air Duct Sealing in Naples closes the gaps, cracks, and failed joints that pull unconditioned attic air, humidity, and contaminants into your duct system. In this market, sealing is often the critical step that follows cleaning or repair, and it’s especially urgent for part-time residents whose systems sat humid and stagnant through the wet season. A typical whole-system air duct sealing in Naples runs $450 – $1,200, with partial sealing of accessible leaks starting around $280.
Mastic Sealing for Flexible Duct
Naples’ dominant housing stock uses flexible duct runs, and flexible duct seals with water-based mastic, not tape. We brush-apply mastic to every joint, collar, and penetration, then verify with a pressure test. The mastic we use is formulated for high-humidity environments and rated for the temperature swings between a 95-degree attic and a 72-degree conditioned space.
Pressure Testing and Verification
After sealing, we run a duct blaster or pressure pan test to quantify leakage reduction. A sealed system should show minimal leakage to outside. We document the before and after numbers in writing, so you have proof the work was done and done correctly. No guesswork, no “trust us” handshakes.
Trusted Brands We Service in Naples
We carry and install filtration and sealing products from Aprilaire, Abatement Technologies, and Guardsman, and our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines. For Naples customers, that means we don’t wait on parts shipments from out of state. A failed collar in a Pelican Bay villa or a compromised return in an Olde Naples cottage gets same-visit resolution with components we stock locally, including everything needed for Naples Dryer Vent Cleaning. We also specify Honeywell dehumidification controls where the local humidity cycle demands it, not as an upsell but as a necessary part of keeping sealed ducts clean through the off-season.
Common Duct Sealing Problems We See in Naples Homes
- Failed mastic in closet-mounted air handlers. Summer attic heat and humidity cook low-grade adhesive loose by the next season, so the leak returns before the owners do. We see this repeatedly in 1990s-era villas off Immokalee Road and in Pelican Bay attached homes.
- Post-storm salt-laden returns treated as sealing-only jobs. Wind-driven debris and insulation pulled into return ducts must be source-removed under negative pressure with HEPA filtration before any joint is sealed. Seal first and you trap contaminants for the next occupancy cycle.
- Sealing without addressing the humidity driver. If a part-time unit sits closed from May through October with the AC off, a perfectly sealed duct still grows microbial film. We pair sealing with dehumidification set-point advice so the system doesn’t repeat the failure.
- Tape “repairs” on flexible duct. Foil tape or duct tape on flex duct is a temporary patch at best. In Naples humidity, it’s a failed seal within one season. Proper sealing requires mastic and mechanical fasteners.
Pricing for Duct Sealing in Naples, FL
A typical duct sealing job in Naples runs $450 – $1,200 for a whole-home system, with partial sealing of accessible leaks starting around $280. Duct repair, when needed before sealing, adds $280 – $650. What moves the price: the number of accessible joints, whether we need to open soffits or ceiling panels to reach leaks, the condition of existing mastic, and whether post-storm contamination requires source removal before sealing can begin.
We give one flat price per system, agreed in writing before any work starts. No per-vent pricing. No add-ons at the door. The price we quote is the price you pay. Call (361) 326-5060 for a free estimate. Our technician will inspect the system, identify the leaks, and write down the exact cost. You approve it before we touch anything.
We Also Serve Cities Near Naples
Our crews regularly work in Bonita Springs, Marco Island, Estero, and Fort Myers Beach. Each shares Naples’ coastal humidity challenges but with distinct housing stocks and occupancy patterns. We schedule Naples jobs alongside these routes for efficient dispatch from our South Florida office.
Serving Naples, FL - Our Local Coverage Area
We’re based in the 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 About Duct Sealing in Naples
Your duct system sat as a dark, humid incubation chamber from May through October, and a failed seal at the plenum collar or a return-side leak pulled hot, humid attic air into the system all summer, feeding microbial growth. We seal the failing joints, source-remove any contamination under negative pressure, and add dehumidification set-point guidance so it doesn’t repeat. Call (361) 326-5060 for an inspection before your next return.
It matters more, not less. Short flexible runs in closet-mounted handlers have fewer joints but higher leakage per joint, and Naples humidity amplifies every gap. A single failed collar can pull enough attic air to contaminate the entire supply side. Sealing is the fix, not overkill.
Have the returns inspected for wind-driven debris, insulation, and salt-laden dust before any sealant goes on. Sealing over contamination traps it permanently. We run a camera inspection and negative-air source removal first, then seal. Call (361) 326-5060 for post-storm duct assessment.
No. Fogging masks odor temporarily but does not remove the microbial film or fix the moisture source. The smell returns when the chemical dissipates. Proper remediation requires source removal under mechanical agitation and negative pressure, plus sealing the leak that fed the humidity, plus humidity control. We don’t sell fogging as a standalone fix.
Yes, or install a dedicated dehumidistat set to 55% relative humidity. A sealed duct system with the AC off still grows microbial film in Naples’ wet season. The energy cost of minimal cooling or dehumidification is far less than the cost of remediation, sealing, and odor removal when you return. We specify Honeywell dehumidification controls for exactly this scenario.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Naples and Southwest Florida since 2004.




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