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 Highland Beach
Duct sealing in Highland Beach typically runs $450 – $1,200 for a full system, depending on whether we’re working in a single townhome or a multi-story condo chase with shared access. Most jobs are scheduled within a few days, and our crews are already working A1A corridor properties weekly. Call (361) 326-5060 for a written estimate before any work begins.
Highland Beach sits on a narrow barrier island where nearly every home is a mid- or high-rise condominium facing the Atlantic. That geography shapes every duct sealing job we do here. The salt-laden ocean air, year-round air conditioning, and vertical duct runs through common chases mean leaks don’t just waste energy, they pull humid, corrosive air into systems that were never designed to handle it. We’ve sealed ducts in the older towers near the town’s southern end and in the newer construction up toward the Boca Raton line. We know the condo association protocols, the elevator scheduling constraints, and the floor protection requirements that come with working in oceanfront buildings where marble and limestone lobbies aren’t negotiable.
Our Duct Sealing crews dispatch from our Miami office and carry mastic sealant, metal-backed tape rated for Florida humidity, and aerosol-based duct sealant equipment for pressurized systems. Every technician is background-checked, uniformed, and trained to The Garrison Standard: arrive inside the window, price in writing, complete the job by the book, and leave the site clean.
Why Hollis Air Duct Cleaning Is Highland Beach’s Preferred Duct Sealing Company
We’ve been sealing ducts in Highland Beach since long before the current wave of energy-efficiency rebates made the topic popular. Roy Castellanos and our team have worked in buildings where the original flex-duct from the 1980s has turned brittle, and in newer construction where builder-grade sealing failed within five years of occupancy.
Our reputation here is built on showing up when we said we would and pricing the job before we touch it. The 365-Day Done Right Promise covers every repair in writing: if the seal fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. When you’re coordinating with a condo board that only approves work during specific windows, that responsiveness matters. We also handle Air Duct Cleaning in Highland Beach and Dryer Vent Cleaning in Highland Beach, so we can address multiple systems in one scheduled visit.
Duct Insulation in Highland Beach
Duct Insulation in Highland Beach addresses a problem most mainland homeowners never face: chilled air warming up as it travels through unconditioned vertical chases before ever reaching your vents. In Highland Beach’s oceanfront condos, those chases often sit between exterior walls and humid interior corridors, so bare metal ductwork sweats, drips, and loses capacity before the air hits your living room.
We install closed-cell foam insulation and fiberglass wrap rated for Florida’s marine tropical climate, focusing on the supply plenum and long vertical runs where temperature loss is greatest. Typical duct insulation work in Highland Beach runs $600 – $1,400, depending on linear footage and whether we’re working in an accessible utility closet or a confined chase behind a finished wall.
Condensation Control in Coastal Systems
Highland Beach’s humidity stays high even when thermostats are set aggressively low, which creates condensation on under-insulated ducts. We size insulation to the actual temperature differential, not a generic R-value chart, because a duct running through a 78-degree corridor with 70-degree air inside behaves differently here than it would in a drier climate.
Association-Compliant Installation Methods
Most Highland Beach condo associations require fire-rated materials and documented installation methods for any work in common chases. Our crews carry the product data sheets and install to those specifications without the back-and-forth that delays other contractors.
HVAC Duct Sealing in Highland Beach
HVAC Duct Sealing in Highland Beach targets the leaks that develop at joints, collars, and plenum connections, especially in buildings where salt-air corrosion has degraded original seals. A typical system in one of Highland Beach’s 1970s – 1990s-era condos loses 20 – 30% of its conditioned air to leaks before reaching the vents, which means your compressor runs longer, your humidity stays higher, and your electric bill climbs.
We seal with mastic compound and metal-backed tape for accessible joints, and we offer aerosol-based duct sealing for systems where physical access is limited by finished ceilings or shared chase walls. HVAC duct sealing in Highland Beach generally costs $450 – $1,200 for a complete residential system, with multi-floor condo jobs at the higher end due to coordination and access requirements.
Pressure Testing Before and After
Every HVAC duct sealing job starts with a pressure test to quantify leakage in CFM, then ends with a second test to verify improvement. We show you both numbers. In Highland Beach’s older buildings, we’ve seen post-seal leakage drop from 300+ CFM to under 75 CFM, which is the difference between a system that struggles and one that maintains setpoint without running constantly.
Salt-Air Corrosion Repair
Because so many Highland Beach units sit directly on the ocean, we regularly find metal duct collars and plenum connections with surface corrosion that compromises the original seal. We clean the joint, apply corrosion inhibitor where appropriate, and seal with materials rated for coastal environments, not standard hardware-store tape that peels within a season.
Trusted Brands We Service in Highland Beach
Our trucks carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration and sealing products from Honeywell, Aprilaire, and Guardsman. For Highland Beach customers, this means we don’t wait on parts shipments from the mainland. We stock mastic sealants, metal-backed tapes, and closed-cell insulation rated for marine tropical humidity, so most jobs are completed in the scheduled window without return visits. The rotary brush systems and negative-air machines we use for companion duct cleaning jobs are the same tools commercial crews deploy in hospitals and schools, maintained to manufacturer spec and checked before every Highland Beach dispatch.
Common Duct Sealing Problems We See in Highland Beach Homes
- Failed seals in original flex-duct from the 1970s – 1980s. Highland Beach’s older oceanfront towers were built with flex-duct that has grown brittle after decades of heat and humidity. The wire helix corrodes, the jacket cracks, and leaks develop at every bend and connection that was never designed to last this long.
- Corroded metal collars and plenum connections from salt-air exposure. Units facing the Atlantic pull corrosive air through intake vents and rooftop equipment, which degrades the metal surfaces where ducts connect to handlers. We see this routinely in buildings along A1A where the ocean is literally across the street.
- Leaks at shared chase access points where multiple units connect. Highland Beach’s vertical condo construction means several units often share a common duct chase. Seals between unit lines fail, and one owner’s conditioned air leaks into a neighbor’s space or into the unconditioned wall cavity.
- Condensation damage from under-insulated ducts in humid chases. When cold air runs through bare metal in a 75-degree corridor with 65% relative humidity, the duct sweats. Water stains ceiling tiles, breeds mold, and eventually destroys the sealant that was keeping the joint tight.
Pricing for Duct Sealing in Highland Beach, FL
Honest pricing matters in a market where some competitors advertise a low teaser rate, then add charges for “extra vents” or “difficult access” once the van is in your building’s loading dock. Hollis does not work that way.
A typical duct sealing job in Highland Beach runs $450 – $1,200 for a complete residential system. Single-story townhomes with accessible crawlspace or attic ducts fall at the lower end. Multi-floor condo units with shared chase access, elevator coordination, and finished-surface protection run toward the higher end. Duct insulation adds $600 – $1,400 depending on linear footage and material.
What moves the price: the number of accessible joints versus joints behind finished surfaces, whether we can use manual sealing or need aerosol-based methods, the condition of existing ductwork (corroded collars take longer), and whether we’re coordinating with a condo association’s specific access rules. We write the price down before any work starts. It does not move at the door. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Highland Beach
Our Duct Sealing in Highland Beach crews regularly travel to neighboring markets. We also schedule duct sealing, duct cleaning, and dryer vent service in Jacksonville, Miami, Tampa, and Orlando. Each location operates under The Garrison Standard with the same written pricing and 365-Day Done Right Promise.
Serving Highland Beach, FL - Our Local Coverage Area
We’re based in the Highland 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 Highland Beach
We typically schedule Highland Beach duct sealing within 3 – 5 business days, and sometimes sooner depending on condo association approval timelines. Because our crews are already working the A1A corridor weekly, we don’t need to dispatch from far inland. Call (361) 326-5060 to check current availability.
We work in every Highland Beach condo and townhome community, from the older oceanfront towers near the town’s south end to the newer construction toward the Boca Raton line. We have experience with the access protocols at buildings up and down A1A.
We do not advertise emergency duct sealing because it is a scheduled, precision job that requires proper assessment and material cure times. However, our phones are answered by a live person 24/7, and we will expedite scheduling if you’re facing an active water intrusion or system failure related to duct damage.
Highland Beach duct sealing runs comparable to Boca Raton and Delray Beach, sometimes slightly higher due to condo coordination and elevator scheduling requirements. The $450 – $1,200 range we quote is specific to this market and building type. Call (361) 326-5060 for an exact quote on your unit.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If the seal fails within one year, Hollis returns and makes it right at no charge, including a free second visit. This applies to all Highland Beach work and is backed by the Garrison Partners family track record since 2004.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Highland Beach and South Florida since 2004.