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 Boynton Beach
Duct sealing in Boynton Beach typically runs $450 – $1,200 for a single-family home and $800 – $2,500 for a condo or townhome with shared chases, with most jobs completed in one scheduled visit. We’re Hollis Air Duct Cleaning, and our crews handle the coordination-heavy work that Boynton Beach properties demand, from 1960s concrete-block ranches west of Federal Highway to high-rise condos along Ocean Avenue where HOA boards require proof of insurance and NADCA-compliant methods before any work begins. Call (361) 326-5060 for a written estimate.
Our dispatch and scheduling are coordinated from our Miami office, but our technicians live and work in Palm Beach County. They know the difference between sealing a standalone system in Leisureville and navigating the access restrictions of a coastal high-rise where one vertical chase serves six units. That local knowledge keeps the job moving and keeps you from getting stuck between your HVAC problem and your property manager’s rules.
Why Hollis Air Duct Cleaning Is Boynton Beach’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family. The Garrison Standard means we arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean. In Boynton Beach, that discipline matters extra. HOAs don’t tolerate crews who show up late, leave debris in common hallways, or can’t produce certificates of insurance on request.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Every repair carries our 365-Day Done Right Promise in writing. If the seal fails or the leak returns 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, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday when your AC is blowing 85-degree air through a leaking chase.
Boynton Beach’s mix of aging single-family stock and newer condo construction means we see two completely different duct sealing problems in the same zip code. Our crews carry both the mastic and foil tape for corroded galvanized ranch ducts and the coordination experience for high-rise access. That range is hard to find in a market where most outfits specialize in one or the other.
Duct Sealing Services in Boynton Beach
Duct Sealing Services in Boynton Beach address the leaks, gaps, and separations in your HVAC ductwork that waste cooled air and pull humid, salt-laden air into your system. In a typical Boynton Beach home, we find 20 – 30% air loss through leaks in attics, crawl spaces, and the shared chases of multi-unit buildings. A full duct sealing job for a single-family home runs $450 – $1,200; condo and townhome systems with shared vertical chases run $800 – $2,500 depending on access and HOA coordination requirements. We use mastic sealant, metal-backed tape, and mechanical fasteners, not the hardware-store foil tape that peels off in our humidity.
Leak Detection and Assessment
We start every job with a pressure test and camera inspection. In Boynton Beach’s older concrete-block homes, we regularly find supply ducts separated at the plenum or return ducts pulling attic air through rusted seams. In condos, the camera reveals whether the leak is in your unit’s accessible ductwork or in the shared chase that requires HOA approval to enter. We show you the footage before quoting. The price is written down before any sealing begins.

Sealing Methods for Coastal Conditions
Standard duct tape fails in six months here. We use water-based mastic rated for high-humidity environments, applied with brushes and spray equipment from Abatement Technologies, plus metal-backed tape at all joints. For severely corroded galvanized ducts, we may recommend partial replacement with flexible duct or sheet metal rather than sealing a surface that will rust through again. We explain the trade-off and let you decide.

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 Boynton Beach
Duct Insulation in Boynton Beach prevents the condensation that forms when 55-degree conditioned air moves through ducts in 90-degree, 80% humidity attic spaces. Uninsulated or poorly insulated ducts sweat, and that moisture breeds mold, degrades mastic seals, and drips through ceiling drywall. In Boynton Beach’s climate, proper insulation is not an add-on; it’s what makes sealing last. A typical duct insulation job runs $600 – $1,800 for a single-family home, depending on accessible linear footage and whether we’re wrapping existing ducts or replacing water-damaged insulation.
Vapor Barrier Installation
We use insulation with an intact vapor barrier, sealed at all seams with mastic, to keep humid outside air from reaching the duct surface. In coastal properties where salt air accelerates corrosion, this barrier also protects the metal underneath. We inspect existing insulation for compression, tearing, or mold staining before recommending replacement.
Condensation Control in Shared Chases
Condensation in condo vertical chases can damage multiple units. Where HOA access allows, we insulate the full length of exposed ductwork in the chase, not just the portions inside individual units. This requires coordination with building management and proof of our methods, which we provide under The Garrison Standard documentation process.
Trusted Brands We Service in Boynton Beach
We carry professional-grade equipment and materials from Rotobrush, Abatement Technologies, Aprilaire, and Guardsman. Rotobrush rotary brush systems handle the agitation work inside corroded ducts. Abatement Technologies HEPA negative-air machines contain dust and biological material during the job. Aprilaire and Guardsman filtration products replace what salt dust has clogged. We stock these parts and materials locally, so Boynton Beach jobs don’t wait on shipping. When your HOA gives us a 48-hour access window, we show up ready to work.
Common Duct Sealing Problems We See in Boynton Beach Homes
- Leaks in shared vertical chases that HOAs restrict access to. Many Boynton Beach condo owners hire a handyman who seals only the visible supply registers, leaving the real leak in the common chase. We coordinate with property management to access the full system, or we document what we can’t reach so you have proof for your HOA.
- Standard sealants failing in high-humidity, salt-air environments. We’ve peeled failed foil tape off ducts in Ocean Avenue buildings where the adhesive turned to goo in three months. We use mastic rated for coastal conditions, and we warranty the work for 365 days.
- Dryer vent runs through common structure creating lint pathways and fire risks. Many Boynton Beach condos and townhomes have dryer ducts that run through shared walls to a common roof vent. If the connection separates, lint enters the building cavity. We seal these connections with rigid metal and proper supports, and we document the work for HOA compliance.
- Undersized galvanized ducts in 1960s – 1980s ranches rusting from the inside out. West of Federal Highway, we regularly find original ductwork with visible rust holes where condensation and salt air have combined. Sealing alone won’t save these; we show you the camera footage and quote replacement where it makes sense.
Pricing for Duct Sealing in Boynton Beach, FL
A typical duct sealing job in Boynton Beach runs $450 – $1,200 for a single-family home with accessible attic or crawl space ductwork. Condos and townhomes with shared chases, HOA coordination, and restricted access run $800 – $2,500. Duct insulation adds $600 – $1,800 depending on linear footage. These are whole-system prices, not per-vent teaser rates that balloon once the technician is inside.
What moves the price: accessibility (attic vs. sealed chase), extent of corrosion or mold damage requiring pre-cleaning, HOA coordination time, and whether we’re sealing existing ducts or replacing sections that have rusted through. We put the full price in writing before any work starts. It does not move at the door.
Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Boynton Beach
Our crews work throughout Palm Beach County, including Duct Sealing in Boynton Beach and surrounding areas: Delray Beach, Greenacres, Boca Raton, and West Palm Beach. Each job follows The Garrison Standard: written price, written guarantee, background-checked uniformed technicians, and a 365-Day Done Right Promise. If you manage properties in multiple cities, we coordinate scheduling across our service area.
Serving Boynton Beach, FL - Our Local Coverage Area
We’re based in the Boynton 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 Boynton Beach
Yes, most Boynton Beach HOAs require written approval and proof of insurance before any work in common areas or shared chases. We provide certificates of insurance, NADCA method documentation, and written scope of work before scheduling. Call (361) 326-5060 and we’ll contact your property manager directly to handle the paperwork.
Salt-laden ocean air accelerates corrosion in metal ducts and degrades standard sealants faster than inland conditions. We use mastic and hardware rated for high-humidity coastal environments, and we inspect for rust damage that would make sealing a temporary fix. Our 365-Day Done Right Promise covers seal failure from any cause, including salt-air degradation.
Yes, we regularly work in Boynton Beach Leisureville and similar 55+ communities with original ductwork from the 1970s and 1980s. These homes often have undersized galvanized ducts with rust and biological growth. We perform camera inspection, explain what we find, and provide a written price before any sealing or replacement work begins.
Salt dust is a fine white residue from ocean air that accumulates in coastal ductwork and clogs filters faster than typical household dust. It does not directly prevent sealing, but it indicates how aggressively salt air is entering your system through leaks. We remove salt dust during pre-cleaning and seal the entry points to reduce future buildup.
We seal dryer vent connections in shared walls and common roof vents using rigid metal duct, proper supports, and fire-rated sealants, then document the work for HOA compliance. We do not use flexible foil or plastic in concealed spaces. If the run is too long or too damaged for safe sealing, we recommend replacement and coordinate with building management for access.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Boynton Beach and Palm Beach County since 2004.




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