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 Lake Worth Beach
We’re the crew Hollis Air Duct Cleaning sends when duct sealing in Lake Worth Beach needs doing right the first time. Our dispatch runs out of our Miami office, and we’ve got trucks on the road to Lake Worth Beach daily, so you’re not waiting a week for an appointment slot to open up. Call us at (361) 326-5060 and we’ll get you scheduled.
Lake Worth Beach isn’t like inland Florida. The salt air coming off the Atlantic, the 1950s bungalows in College Park and Parrot Cove with retrofitted ductwork that was never designed for central air, the year-round humidity that never gives your attic a break. We’ve sealed ducts in the historic districts and the newer developments west of I-95, and the problems we find are different in each. That’s why local experience matters. A technician who treats your 1952 ranch like a 2015 tract home will miss the corrosion at the boot-to-floor junction, seal over wet debris, and leave you with a mastic job that peels inside a season.
Why Hollis Air Duct Cleaning Is Lake Worth Beach’s Preferred Duct Sealing Company
We’ve been doing this since 2004 as part of the Garrison Partners family, and our Duct Sealing in Lake Worth Beach reputation is built on showing up inside the window, pricing in writing before we touch anything, and leaving the site clean. The Garrison Standard isn’t a slogan. It’s arriving when we said we would, writing the price down before any work starts, completing the job by the book, and backing it with our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed. You’ll know who’s walking into your home before they arrive. And when you call (361) 326-5060, a live person answers. No voicemail loops, no callback queues, no waiting until Monday.
We don’t compete on the lowest teaser price. We compete on discipline: show up, price it, do it by the book. Homeowners in Lake Worth Beach who’ve been burned by no-shows and prices that jumped at the door tell us that’s what they were actually shopping for.
Duct Insulation in Lake Worth Beach
Duct Insulation in Lake Worth Beach addresses a specific problem: unconditioned attic and crawlspace runs that sweat in our tropical humidity, bleeding cooled air into spaces where it does no good. In Lake Worth Beach’s 1920s-1950s bungalows, we regularly find uninsulated or poorly insulated supply lines running through attics that hit 120 degrees in July. The temperature differential between your 72-degree supply air and that attic air creates condensation on the duct exterior, which drips onto ceiling drywall and breeds mold in the insulation batts.
A typical duct insulation job in Lake Worth Beach runs $800 – $1,800 depending on linear footage, accessibility, and whether we’re insulating existing sealed ducts or insulating as part of a full sealing-and-wrapping package. We use professional-grade materials from Aprilaire and Guardsman, not the hardware-store wrap some crews show up with.
When Insulation Matters More Than Sealing
Sometimes the joints are tight but the runs are bare. In Parrot Cove homes with original 1950s fiberboard trunks, the material itself has degraded to the point where sealing joints won’t stop the thermal loss. We insulate with foil-faced fiberglass or closed-cell wrap depending on the clearance and the existing condition.
Attic Sweat and Ceiling Stains
That brown spot on your ceiling below the attic hatch? It’s often not a roof leak. It’s condensation dripping off an uninsulated duct. We’ve traced dozens of these in Lake Worth Beach to supply lines that needed wrapping, not patching.
HVAC Duct Sealing in Lake Worth Beach
HVAC Duct Sealing in Lake Worth Beach means finding every point where conditioned air escapes and unconditioned air infiltrates, then sealing them with mastic and mesh, mechanical fasteners, or specialized aerosol sealant depending on the duct material and access. In Lake Worth Beach’s coastal historic districts, this work is complicated by salt-laden ocean air that corrodes galvanized duct boots and joints before humidity-driven microbial growth even becomes visible. Sealing without addressing corrosion at the boot-to-floor junction simply traps moisture inside the failing seam and accelerates it.
A typical HVAC duct sealing job in Lake Worth Beach runs $600 – $1,400 for a single system, with whole-home multi-zone jobs reaching $1,800 – $2,800. The price depends on duct linear footage, accessibility (crawlspace vs. attic vs. conditioned basement), and whether we’re sealing existing accessible joints or need to create access points in soffits or chases.
Mastic and Mesh vs. Tape
Foil tape fails in Florida attics. The adhesive degrades in heat and humidity, and salt air accelerates the breakdown. We seal with water-based mastic reinforced with fiberglass mesh, applied to clean, dry surfaces. It’s the standard commercial crews use, and it’s what we specify for every Lake Worth Beach job.
Aerosol Duct Sealing for Inaccessible Runs
When ducts are buried behind plaster or original ship-lap in College Park bungalows, we can pressurize the system and inject aerosol sealant particles that find leaks from the inside and bond at the edges. It’s not cheap, but it’s sometimes the only way to seal a 1920s retrofit duct without destructive demolition.
Trusted Brands We Service in Lake Worth Beach
Our equipment roster includes Rotobrush rotary brush systems for agitation and debris removal, Nikro negative-air machines for source extraction under controlled pressure, and filtration and sealing products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. We stock common boot sizes, collar replacements, and mastic supplies for Lake Worth Beach jobs so we’re not ordering parts and making you wait. When we find corrosion on a galvanized boot in Parrot Cove, we can replace it same visit rather than scheduling a return trip. That matters in a seasonal business where a two-week parts delay can mean running your AC through another month with a leaking return.
Common Duct Sealing Problems We See in Lake Worth Beach Homes
- Disconnected 1950s fiberboard trunk joints in College Park and Parrot Cove. These post-war ranch homes were retrofitted for central air with materials that weren’t meant to handle the static pressure of modern systems. We regularly find return-side trunks pulling attic air straight through gaps you could put your hand through.
- Corroded boot-to-floor penetrations from salt air exposure. The galvanized collars and sheet metal boots in Lake Worth Beach’s coastal homes corrode faster than inland equivalents. A boot that looks intact from the living room side can be paper-thin at the attic penetration, leaking conditioned air into the wall cavity.
- Rodent nests in crawlspace and attic ductwork after hurricane season. When storms push pests inland, they seek shelter in unconditioned spaces. We’ve pulled nests packed against supply registers, chewed flex duct, and droppings that make simple sealing insufficient without source removal first.
- Fogging “sanitizers” sold as duct sealing by other contractors. This isn’t a building defect, but it’s a problem we clean up after. Fogging a chemical mist through your registers masks odor. It does nothing for disconnected joints, corroded boots, or the moisture feeding microbial growth. We’ve resealed dozens of Lake Worth Beach systems where the homeowner paid for fogging and got no actual leak remediation.
Pricing for Duct Sealing in Lake Worth Beach, FL
Honest pricing means ranges you can use, not a low teaser that balloons once our van is in your driveway. A typical duct sealing job in Lake Worth Beach runs $600 – $1,400 for a single HVAC system with accessible ductwork. Multi-zone homes or jobs requiring aerosol sealing for inaccessible runs run $1,800 – $2,800. Duct insulation as a standalone service runs $800 – $1,800, and combined sealing-plus-insulation packages typically fall between $1,200 and $2,600.
What moves the price: linear footage of ductwork, number of boots and joints, accessibility (crawlspace work costs more than attic work), whether we need to create access openings, and the condition of existing materials. Corroded boots requiring replacement add material cost. Rodent contamination requiring source removal before sealing adds labor. We write the price down before any work starts, and it does not move at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Lake Worth Beach
Our Duct Sealing crews work throughout South Florida, with regular routes to Jacksonville, Miami, Tampa, and Orlando. Dispatch and scheduling are coordinated from our Miami office, and we maintain equipment and parts inventory to serve all these markets with the same written-price, 365-Day Done Right Promise standard.
Serving Lake Worth Beach, FL - Our Local Coverage Area
We’re based in the Lake Worth 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 Lake Worth Beach
Those bungalows were built before central air existed, so their ducts are retrofits: cramped runs, uninsulated fiberboard, joints that were never designed for the static pressure of a modern blower. In newer Lake Worth Beach homes, ducts are engineered as part of the HVAC system. In College Park and Parrot Cove, we’re often sealing joints that have been leaking since the 1970s retrofit, while also addressing corrosion and disconnection that a 2015 home simply doesn’t have. Call (361) 326-5060 for an exact quote on your specific home.
No. Fogging deposits a chemical film on interior surfaces. It does not close gaps, reconnect separated joints, or stop air from leaking through corroded boots. We’ve resealed Lake Worth Beach systems where the homeowner paid for fogging and saw no improvement in utility bills or comfort because the actual leaks were untouched. Source removal with agitation and negative-air extraction, followed by mechanical sealing with mastic, is what fixes the problem. Call (361) 326-5060 to discuss what your system actually needs.
Salt air corrodes galvanized steel faster than inland humidity alone. In Lake Worth Beach’s coastal historic districts, we regularly find boot-to-floor penetrations where the metal is rusted through from the attic side while looking intact from below. Sealing over that corrosion without replacing the boot traps moisture in the seam and accelerates failure. Our techs inspect every boot and collar with a camera before sealing, and we stock replacements so we’re not leaving you with a partial fix. Call (361) 326-5060 for an inspection.
Storms displace pests, and they seek shelter in unconditioned attics and crawlspaces. We had a 1952 post-war ranch in College Park where the return-side static pressure was pulling attic air straight through disconnected 1950s fiberboard trunk joints, so we ran camera inspection, used agitation tools to break the matted salt-dusted debris loose, and sealed the trunk-to-boot connections with mastic and mesh before wrapping the runs in the unconditioned attic. Our tech also found a rodent nest packed against a supply register after last hurricane season, pulled it as source removal under negative pressure with HEPA filtration on the vac, and the homeowner’s blower motor amps dropped back toward nameplate. Sealing without removing the nest would have trapped contaminants and odor. Call (361) 326-5060 if you’re noticing unusual smells or airflow drops after a storm.
Sealing stops air from leaking in and out. Insulation stops temperature differential from causing condensation on the duct exterior. In Lake Worth Beach’s tropical climate, you often need both. We regularly find sealed ducts in unconditioned attics that still sweat because the supply air is 55 degrees and the attic is 110. The water drips onto insulation, breeds mold, and stains ceilings. We assess each system and recommend what’s actually needed, not what’s easiest to sell. Call (361) 326-5060 for a free evaluation.
Ready to stop bleeding conditioned air into your attic or crawlspace? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. We’ll show up inside the window, write the price down before we touch anything, and back our work with the 365-Day Done Right Promise. Roy Castellanos built this operation on The Garrison Standard, and that’s the standard every Lake Worth Beach job gets.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lake Worth Beach since 2004.




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