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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AfterFast, Reliable Duct Sealing Across Neptune Beach
Your Neptune Beach home’s cooling costs keep climbing, and the second bedroom never gets comfortable. That’s often not your HVAC unit failing; it’s air leaking through corroded duct joints before it ever reaches your vents. In Neptune Beach, where salt-laden coastal air eats through galvanized steel ductwork faster than almost anywhere in Duval County, duct sealing isn’t an upgrade. It’s maintenance that should have happened years ago.
We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our Duct Sealing team works the beachside streets of Neptune Beach regularly. From the mid-century ranches along Seagate Avenue to the 1970s condos near the oceanfront, we’ve sealed and replaced ductwork in homes that share your exact problems. Scheduling and dispatch run through our Miami office, but the crew that arrives at your door knows Neptune Beach’s housing stock and its particular headaches. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Neptune Beach’s Preferred Duct Sealing Company
We’ve been in business since 2004, and the Garrison Standard we operate under was built for customers who’ve been burned by bait-and-switch pricing and no-show contractors. Neptune Beach homeowners aren’t looking for the cheapest bid. They’re looking for the bid they can trust.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. We price every job in writing before touching your system, and that number doesn’t move at the door. Our 365-Day Done Right Promise covers every repair in writing: if the seal fails within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops. No callback queues. And because we serve Neptune Beach and the surrounding beach communities regularly, we’re familiar with the short-run duct systems in oceanfront condos and the original galvanized lines in 1950s bungalows. That local knowledge means faster diagnosis and no surprises.
Duct Sealing Services in Neptune Beach
Duct Sealing Services in Neptune Beach address a problem most homeowners don’t know they have: conditioned air escaping through gaps, corroded joints, and separated connections before it reaches your living spaces. Our crews use professional-grade mastic sealant and metal-backed tape to close leaks permanently, not the hardware-store foil tape that peels off in Florida humidity. A typical whole-house duct sealing job in Neptune Beach runs $450 – $850 depending on system size and accessibility, with partial sealing of problem zones starting around $250.
Leak Detection and Assessment
We pressurize your duct system and measure airflow loss to find exactly where your money is escaping. In Neptune Beach’s older homes, we regularly locate leaks at corroded joints where salt air has degraded the metal, or at connections that have separated due to decades of thermal expansion. The assessment itself is included in your written estimate.
Mastic Sealing and Joint Reinforcement
Our technicians apply UL-181 rated mastic sealant, a thick compound that remains flexible and bonds to metal even in damp coastal conditions. For joints in high-vibration areas or where corrosion has weakened the surrounding metal, we reinforce with metal-backed tape before sealing. This is the method specified by ASHRAE and the one we back with our 365-Day Done Right Promise.
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.
Duct Insulation in Neptune Beach
Duct Insulation in Neptune Beach solves a different but related problem: cooled air warming up as it travels through hot attic spaces, or heated air losing temperature in winter. Even perfectly sealed ducts waste energy if they lack proper insulation. In Neptune Beach’s climate, where attics routinely exceed 130 degrees in summer, uninsulated or degraded duct wrap can raise your cooling costs by 20 percent or more. A typical attic duct insulation job in Neptune Beach runs $600 – $1,200 for a complete wrap of accessible lines, with spot repairs starting at $300.
Fiberglass Wrap Replacement
Original duct insulation in Neptune Beach’s 1950s – 70s homes has often compressed, torn, or absorbed moisture over decades. We remove degraded material and install new R-6 or R-8 fiberglass wrap with a reinforced vapor barrier, secured properly so it won’t sag or gap. The vapor barrier is critical here: Neptune Beach’s humidity will destroy insulation that isn’t sealed against moisture penetration.
Reflective Radiant Barrier Integration
For ducts running through particularly hot attic zones, we can integrate reflective radiant barrier material to reduce heat gain. This isn’t a replacement for proper insulation, but in combination with sealed, wrapped ducts, it measurably reduces the temperature differential your HVAC system must overcome. We explain exactly where it helps and where it doesn’t, so you don’t pay for what you don’t need.
Trusted Brands We Service in Neptune Beach
Our equipment roster includes professional-grade tools from Rotobrush, Nikro, and Abatement Technologies, plus filtration and sealing products from Honeywell, Aprilaire, and Guardsman. We stock mastic compounds, metal-backed tapes, and insulation materials sized for the short-run duct systems common in Neptune Beach’s beachside condos and townhomes. That means no waiting on parts for standard jobs. For the older galvanized systems we encounter in mid-century ranches, we carry transition fittings and repair sleeves that let us seal what can be saved and replace what can’t, all priced in writing before work begins.
Common Duct Sealing Problems We See in Neptune Beach Homes
- Salt-corroded joints in original galvanized ductwork. The constant sea breeze along Neptune Beach’s oceanfront streets accelerates corrosion on any exposed metal. We regularly open attic hatches to find duct joints that have rusted through completely, blowing conditioned air directly into the attic space.
- Separated flex duct at plenum connections. The 1970s and 1980s condo clusters near First Street often used flex duct with inadequate support. Decades of vibration and thermal cycling have pulled connections loose, creating gaps that no amount of HVAC tuning can compensate for.
- Pinhole leaks from internal rust flakes. In homes that have never had duct cleaning, decades of moisture accumulation have created rust flakes that protrude inward, perforating the duct wall from the inside out. This is especially common in Neptune Beach’s unconditioned crawl spaces where ground moisture meets salt air.
- Failed tape seals from previous DIY or cut-rate repairs. We peel off brittle, peeling foil tape on nearly every older home we service. Florida’s heat and humidity destroy it within months. Our mastic seals are the permanent solution, and they’re what we guarantee for 365 days.
Pricing for Duct Sealing in Neptune Beach, FL
Whole-house duct sealing in Neptune Beach typically runs $450 – $850. Partial sealing of identified problem zones starts around $250. Duct insulation runs $600 – $1,200 for complete attic wrap, with spot repairs from $300. What moves you within these ranges: system size (square footage and number of zones), attic accessibility, whether we need to remove degraded old insulation first, and the extent of corrosion damage we find once we’re inside.
We don’t quote per-vent pricing, and we don’t bait you with a teaser rate that doubles once the van is in your driveway. One flat price per system, agreed in writing before we start. You’ll see exactly what you’re paying for and why. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Neptune Beach
Our crews work the full beach corridor and inland Duval County, including Air Duct Cleaning in Neptune Beach and Dryer Vent Cleaning in Neptune Beach, plus Jacksonville Beach, Atlantic Beach, Jacksonville, and Yulee. Same standards, same written pricing, same 365-Day Done Right Promise at every address.
Serving Neptune Beach, FL - Our Local Coverage Area
We’re based in the Neptune 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 Neptune Beach
We schedule Neptune Beach appointments within a few business days of your call, sometimes sooner depending on current demand. Our dispatch team coordinates from our Miami office, but the crew serving your home is local to the Jacksonville metro area and knows the beach communities. Call (361) 326-5060 to check next available slots.
Yes, we work the full Neptune Beach area including the oceanfront condo clusters near First Street, the mid-century ranch streets between Seagate and Florida Boulevard, and the bungalow pockets closer to the Intracoastal. Salt air damage looks different in each zone, and we’ve sealed ducts in all of them.
We don’t classify duct sealing as an emergency service; it’s a scheduled repair that we complete thoroughly rather than rushing. However, our phones are answered by a live person 24/7, and if a leaking duct has caused a system shutdown or water damage, we’ll prioritize your appointment and get a technician out as soon as possible.
Not significantly. Labor rates are consistent across our service area. The variable is condition: Neptune Beach’s salt-corroded ducts sometimes require more extensive repair or partial replacement than inland systems, which can push a job toward the higher end of our range. We identify this during your free estimate, not after work begins.
Every duct sealing and insulation job we complete in Neptune Beach is covered for 365 days from completion. If any seal fails, any joint reopens, or any insulation sags or gaps within that year, we return and make it right at no charge. This includes a free second visit. The promise is written on every invoice, not implied.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Neptune Beach and the Jacksonville beach communities.