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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After
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AfterFast, Reliable Duct Sealing Across Jacksonville Beach
We dispatch crews to Jacksonville Beach from our South Florida coordination office, and we know the drive across I-295 and down A1A well enough to hit our arrival windows. We also offer Jacksonville Beach Dryer Vent Cleaning for homes in the area. If you’re in a beach cottage off 1st Street or a raised home near the pier, your ductwork faces something inland Jacksonville doesn’t: salt-laden air that corrodes metal and opens pinhole breaches faster than almost anywhere else in the metro. That’s why we pressure-test every duct run we seal, verify static pressure at the air handler, and put the price in writing before we touch anything. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Jacksonville Beach’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Duct Sealing team has handled enough coastal jobs to know the difference between surface rust that sealing can fix and deterioration that requires replacement. Jacksonville Beach homeowners aren’t looking for the lowest teaser quote; they’re looking for a crew that shows up uniformed, prices the job before work starts, and stands behind it for a full year.
Our 365-Day Done Right Promise covers every duct sealing job in writing. If the seal fails or the musty odor returns within a year, we come back at no charge, including a free second visit. No negotiation, no runaround. Our technicians are background-checked and uniformed; you know who’s walking into your home before they arrive. And when you call (361) 326-5060, a live person answers, 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
We serve Jacksonville Beach specifically, not as an afterthought to a broader market push. We know the housing stock here: the 1950s-1970s ranches with original galvanized trunk lines, the older beach cottages with flex-duct additions, the newer elevated homes with modern systems still fighting salt-air exposure. That local knowledge changes what we look for during inspection and what we recommend.
Air Duct Sealing in Jacksonville Beach
Air Duct Sealing in Jacksonville Beach means locating and closing breaches in your duct run so conditioned air reaches your rooms instead of leaking into your attic, crawl space, or wall cavities. In this market, the job is rarely about a single disconnected joint. Coastal salt air attacks metal ductwork from the outside while humidity pushes condensation from the inside, creating pinhole leaks along galvanized trunks and rust-scale that breaks the seal at flex-duct collars. A typical Air Duct Sealing job in Jacksonville Beach runs $450 – $950 for a single system, depending on how many breaches we find, whether the plenum needs resealing, and if we need to replace deteriorated flex sections.
Pressure Testing Before Sealing
We don’t guess where your ducts are leaking. We pressurize the duct run and measure static pressure at the air handler, then use that data to locate breaches. In Jacksonville Beach homes within a few blocks of the ocean, we regularly find pressure drops that trace back to pinhole corrosion the homeowner never knew existed. Finding it first saves you from paying for a fogging sanitiser that can’t fix the underlying problem.
Mastic and Mesh, Not Just Tape
We seal breaches with duct sealing mastic reinforced with mesh fabric, applied to clean, prepared metal. In coastal environments, low-grade foil tape fails within a season; salt air and humidity lift the adhesive, and you’re back where you started. Our sealing method is slower than taping, but it holds against Jacksonville Beach’s conditions.
Duct Sealing Services in Jacksonville Beach
Duct Sealing Services in Jacksonville Beach cover the full range of breach repair, from resealing plenum joints and register boots to replacing deteriorated flex-duct sections and sealing trunk-line pinholes. We also inspect for the hidden failure mode we see too often: an air handler pulling unconditioned humid attic air through open plenum joints even after the visible ducts look sealed. That internal condensation keeps microbial growth alive no matter how clean the ducts appear. A full Duct Sealing Services job in Jacksonville Beach typically runs $650 – $1,400 when we include plenum sealing, flex-duct replacement, and post-seal pressure verification.
Camera Inspection of Coastal Ductwork
We run a camera through the duct run before we quote. In Jacksonville Beach, we’re looking for rust-scale, standing water from past hurricane intrusion, and separation at flex-duct collars. What we find changes the scope and the price, and we show you the footage before you decide. No surprises after we start.
Post-Seal Verification
After sealing, we pressure-test again and record the static pressure reading. If it hasn’t improved, we keep looking until we find the breach. The Garrison Standard requires us to verify our work, not just declare it done. You get the before and after numbers in writing.
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 Jacksonville Beach
We seal with professional-grade materials from Abatement Technologies and Guardsman, the same products commercial crews use in hospitals and schools. For filtration upgrades after sealing, we stock Aprilaire media cleaners and Honeywell electronic air cleaners, with parts available for Jacksonville Beach customers without the wait times you’d get ordering direct. Salt-air environments punish inferior materials; we don’t use them. When we recommend a product, it’s because we’ve watched it hold up in Jacksonville Beach conditions, not because it’s the cheapest option in the catalog.
Common Duct Sealing Problems We See in Jacksonville Beach Homes
- Pinhole corrosion on galvanized trunks near the ocean. Homes within a few blocks of the Atlantic routinely show surface rust that opens into pinhole leaks. Fogging sanitiser can’t close a hole; only physical sealing or replacement stops the air loss and moisture intrusion.
- Failed foil tape at flex-duct collars. The adhesive on standard foil tape degrades fast in salt-air and humidity. We find tape hanging loose at register boots and trunk connections, leaking conditioned air into attics and crawl spaces for months before the homeowner notices.
- Open plenum joints pulling humid attic air. Even when visible ductwork looks intact, the plenum connection at the air handler may be open. That draws unconditioned, humid air into the system, causing internal condensation that mimics a duct leak but needs plenum sealing instead.
- Post-hurricane water intrusion and debris. Jacksonville Beach’s hurricane season can force water into duct runs through compromised roof vents or damaged flashing. We inspect for standing water and damaged insulation that would undermine any seal we apply.
Pricing for Duct Sealing in Jacksonville Beach, FL
A typical duct sealing job in Jacksonville Beach runs $450 – $950 for partial sealing of a single system, and $650 – $1,400 for comprehensive Duct Sealing Services including plenum work, flex-duct replacement, and full pressure verification. What moves you up or down within those ranges: how many breaches we find, whether the original ductwork is galvanized or modern flex, accessibility in attics or crawl spaces, and whether we need to replace deteriorated sections rather than seal them.
We give you one flat price per system, agreed in writing before we start. No per-vent pricing. No add-ons at the door. If we find something unexpected during the job, we stop and discuss it; we don’t invoice for surprises. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Jacksonville Beach
Our crews work throughout the Jacksonville metro, including Duct Sealing in Jacksonville Beach and surrounding communities: Neptune Beach, Atlantic Beach, Jacksonville, and Fleming Island. Scheduling and dispatch are coordinated from our Miami office, with local crews serving each area.
Serving Jacksonville Beach, FL - Our Local Coverage Area
We’re based in the Jacksonville 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 Jacksonville Beach
Salt-laden ocean air accelerates corrosion of metal ducts, and the higher ambient humidity pushes more moisture through any breach, creating conditions for microbial growth that inland homes with the same age ductwork rarely see. Sealing the breaches stops the moisture source; fogging without sealing just masks the symptom. Call (361) 326-5060 for an inspection and exact quote.
Duct sealing stops the musty smell if the odor comes from humid, unconditioned air entering through breaches and condensing inside the duct run. If the ductwork itself is heavily contaminated with active mold growth, sealing alone won’t remove it; we may recommend cleaning plus sealing. We assess this during camera inspection and tell you straight which you need. Call (361) 326-5060 to schedule.
We start with camera inspection and pressure testing to locate breaches, then clean the sealing surfaces of rust-scale and debris. We apply mastic and mesh to pinholes and reseal plenum joints, replacing deteriorated flex sections as needed. In older homes, we often find multiple repair layers from previous owners; we document what we find and quote replacement versus sealing honestly. Call (361) 326-5060 for a free estimate.
Most well-sealed duct systems should be reinspected every 5 – 7 years, but in Jacksonville Beach’s salt-air environment, we recommend checking every 3 – 4 years, especially for homes with original galvanized ductwork. If pinhole corrosion is widespread or the trunk line has structural rust, replacement becomes the better value; we’ll tell you when we’ve reached that point. Call (361) 326-5060 to assess your system.
Yes. Low-grade foil tape fails within a season here; we’ve peeled it off in handfuls during follow-up visits. We use Abatement Technologies and Guardsman sealing products rated for commercial applications because their mastic compounds and reinforcement meshes hold adhesion and flexibility under salt-air and humidity cycling. The material cost difference is minor; the callback cost of failure is not. Call (361) 326-5060 for details on what we use and why.
We were called to a mid-century ranch near the Jacksonville Beach oceanfront where the homeowner noticed musty air from the supply and return ducts and a dust film returning days after cleaning. Using a camera inspection, we found rust-scale and pinhole breaches along the original galvanized trunk; we pressure-tested the run and sealed the breaches with mastic and mesh, then verified the air handler’s static pressure returned to spec. The musty odor and visible dust recurrence stopped, and we scheduled a follow-up within the year because salt air will keep attacking any missed breach.
Ductwork within a few blocks of the ocean in Jacksonville Beach routinely shows surface rust and pinhole leaks from salt-laden air, so genuine sealing means locating and closing those breaches by pressure-testing the duct run – not just cleaning and fogging the system. The fogging upsell is common in this market, and it’s a waste if your ducts are leaking. The moisture source stays, so the growth returns within weeks. We tell Jacksonville Beach homeowners exactly what we find and exactly what it takes to fix it, with a written price before we start and a 365-Day Done Right Promise backing the work.
Ready to stop losing conditioned air to your attic and crawl space? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate on duct sealing in Jacksonville Beach. We’ll pressure-test your duct run, show you what we find, and put the price in writing before any work begins. Every job is covered by our 365-Day Done Right Promise: if the seal fails, we come back and make it right at no charge.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Jacksonville Beach since 2004.