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 Atlantic Beach
Duct sealing in Atlantic Beach typically runs $450 – $1,200 for a whole-home seal, depending on whether we’re working with original galvanized steel in a pre-war cottage or modern flex duct in a piling home. Most jobs take a half day, and we price them in writing before any mastic touches your ductwork. Call (361) 326-5060 for a free estimate.
We’ve worked on enough Atlantic Beach homes to know the difference between a generic leak and what salt air actually does to your ducts. From the original beach cottages off Ocean Boulevard to the newer construction on pilings near Dutton Island Preserve, we’ve crawled through the attics and crawlspaces where Atlantic Beach’s humid, salt-laden air finds every gap. Our crews are dispatched from our South Florida office, but we serve Atlantic Beach directly. No subcontractors. No bait-and-switch pricing. Just background-checked, uniformed technicians who show up inside the window and leave the site clean.
Why Hollis Air Duct Cleaning Is Atlantic Beach’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and that track record matters in a market where fly-by-night duct cleaners come and go every season. Atlantic Beach homeowners call us back because we write the price down before we start, stand behind the work with our Duct Sealing 365-Day Done Right Promise, and send the same kind of accountable crew every time.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week, no voicemail loops. And every job follows The Garrison Standard: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. If the seal fails within a year, we return and make it right at no charge, including a free second visit.
We know Atlantic Beach’s housing stock. The 32233 ZIP includes pre-war cottages with original galvanized ductwork, mid-century ranches on Selva Marina Drive, and newer piling homes where flex duct runs through unconditioned attics. Each type fails differently. Each type needs a different approach. We don’t guess. We run a camera first.
Air Duct Sealing in Atlantic Beach
Air Duct Sealing in Atlantic Beach is rarely a simple matter of slapping tape on a joint. The salt-laden ocean air that makes this town desirable also corrodes metal ductwork from the inside out, and the year-round humidity lets mold colonize any gap where conditioned air meets unconditioned space. We typically find that Atlantic Beach homes need sealing combined with source removal, because sealing over rusted galvanized steel or moldy flex duct just traps the problem.
A typical whole-home seal in Atlantic Beach runs $450 – $1,200. Smaller cottages with accessible crawlspaces sit at the lower end. Larger homes with multiple disconnected runs, crushed flex behind walls, or extensive corrosion requiring section replacement run higher. We price by the system, not by the vent, and we agree on that price before work starts.
Camera Inspection Before Any Seal
We run a camera down every accessible trunk line before we quote. In a 1950s ranch off Seminole Road, we once found a completely separated return duct buried in the crawlspace. The homeowner had been cooling their crawlspace for three years. No amount of sealing the accessible trunk would have fixed that. The camera finds what you can’t see from the register.
Mastic and Mesh, Not Foil Tape
We seal with duct mastic reinforced with fiberglass mesh, not foil tape. In Atlantic Beach’s humidity, foil tape adhesive breaks down within months. Mastic remains flexible, bonds to properly prepared metal, and lasts. For flex duct connections, we use mechanical clamps plus mastic, never tape alone.
Duct Sealing Services in Atlantic Beach
Duct Sealing Services in Atlantic Beach from Hollis include full-system inspection, source removal of rust and biological growth where present, reconnection of separated runs, repair or replacement of crushed sections, and sealing of all joints, boots, and plenum connections with mastic and mesh. We finish with a static pressure test to verify the seal held. If your system still leaks, we find it and fix it before we leave.
Pricing follows the same system-based structure: $450 – $1,200 for most Atlantic Beach homes. Homes requiring extensive section replacement of corroded galvanized duct may exceed this range, but we identify that during inspection and quote it in writing. No surprises at the door.
Source Removal for Corroded Galvanized
Atlantic Beach’s original galvanized steel ductwork corrodes from the inside where salt-laden return air passes over it. Sealing over that corrosion without removing the oxidation first is a waste of money. The mastic won’t bond to rust, and the joint re-opens by the next hurricane season. We use rotary brush systems and HEPA-negative air methods to clean the substrate before we seal. This adds time. It also adds years to the repair.

Flex Duct in Unconditioned Spaces
Newer piling homes often run flex duct through unconditioned attics where Atlantic Beach’s heat and humidity degrade the outer liner. We inspect for tears, sagging, and rodent damage, then seal with appropriate materials rated for the environment. Standard hardware-store solutions fail here. We use products from Abatement Technologies and Guardsman rated for commercial applications.

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.
Trusted Brands We Service in Atlantic Beach
We carry professional-grade equipment and materials from Rotobrush, Nikro, Abatement Technologies, and filtration products from Honeywell, Aprilaire, and Guardsman. For Atlantic Beach homeowners, this means we don’t need to order parts and make you wait. Our vans stock mastic, mesh, mechanical clamps, and replacement flex duct rated for humid coastal environments. If your system needs a component we don’t carry, we source it fast through our South Florida supply chain. Most jobs start and finish the same day because we’re prepared for what Atlantic Beach homes actually contain.
Common Duct Sealing Problems We See in Atlantic Beach Homes
- Sealing over rusted, salt-corroded galvanized joints without removing the oxidation first. The mastic won’t bond to rust, and the joint re-opens by the next hurricane season. We see this after homeowners hire cut-rate cleaners who skipped the prep work. The fix costs more the second time.
- Ignoring disconnected or crushed runs found during cleaning and only sealing the accessible trunk lines. The real leakage path stays buried in the crawlspace or unconditioned piling attic. The system still runs constantly. The power bill stays high. We run cameras to find these before we quote.
- Using standard foil tape on flex duct in Atlantic Beach’s unconditioned attics. Year-round humidity and salt air break down the adhesive within months. We use mechanical clamps plus matic rated for the environment, not tape that turns to dust.
- Failing to address water intrusion after hurricanes or nor’easters before sealing. Beachfront homeowners often find sand and salt residue blown into outdoor HVAC units and ductwork. Sealing over wet or contaminated duct traps mold. We dry, clean, then seal.
Pricing for Duct Sealing in Atlantic Beach, FL
A typical duct sealing job in Atlantic Beach runs $450 – $1,200 for a complete whole-home seal. Smaller cottages with straightforward access and minimal corrosion fall at the lower end. Larger homes, extensive corrosion requiring section replacement, or multiple disconnected runs found during inspection push toward the higher end. We price by the complete system, not per vent, and we write that price down before any work starts.
What affects your specific cost: the age and material of your ductwork (original galvanized versus modern flex), accessibility (crawlspace versus sealed attic), extent of corrosion or biological growth requiring source removal, and whether we find disconnected or crushed runs during camera inspection. We don’t give estimates that balloon once the technician is inside. The price we write is the price you pay.
Call (361) 326-5060 for a free, no-obligation estimate. We’ll inspect your system, show you what we find, and give you a written price you can take to another company for comparison. We’re confident you’ll come back to us.
We Also Serve Cities Near Atlantic Beach
Our crews work throughout the Jacksonville beaches area, including Atlantic Beach, Neptune Beach, Jacksonville Beach, Jacksonville, and Yulee. Same standards, same written pricing, same 365-Day Done Right Promise at every location.
Serving Atlantic Beach, FL - Our Local Coverage Area
We’re based in the Atlantic Beach 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 Atlantic Beach
Because cleaning alone doesn’t seal the gaps where humid, salt-laden outside air enters your duct system. In Atlantic Beach, we often find that musty odors come from unsealed joints in unconditioned crawlspaces or attics where mold grows on the duct surface. Cleaning removes the mold; sealing stops the humid air that feeds it. Call (361) 326-5060 for an inspection that includes both.
We can often seal original galvanized ducts if the metal is structurally sound and we remove corrosion first. In Atlantic Beach’s salt air, we see plenty of surface rust that cleans up fine, and we see some ducts that have thinned to the point of replacement. The camera inspection tells us which yours are. We quote both options in writing. Call (361) 326-5060 to schedule.
Salt air corrodes galvanized steel from the inside out and degrades adhesives on tape-style seals within months. Inland neighborhoods deal with dust and pollen; Atlantic Beach deals with corrosion and accelerated adhesive failure. That’s why we use mastic and mesh instead of tape, and why we prep corroded metal before sealing. The coastal environment demands different materials and methods.
Check for water stains around ceiling registers, musty odors when the system runs, and unusual short-cycling of the blower motor. Sand and salt residue can blow into outdoor units and ductwork during storms, and water intrusion creates sudden mold contamination. Don’t seal wet ducts. If you suspect storm damage, call (361) 326-5060 for an inspection before the next season makes it worse.
Yes. Flex duct in unconditioned piling attics faces heat, humidity, and rodent pressure that rigid metal doesn’t. We use mechanical clamps plus mastic rated for the environment, never foil tape alone. We also inspect for sagging that creates low spots where condensation pools. The sealing method matches the material and the environment it’s in.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Atlantic Beach and the Jacksonville beaches area since 2004.




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