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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Surfside
Duct sealing in Surfside typically runs $450 – $1,200 for a whole-system seal, depending on whether we’re working in a compact single-family near Harding Avenue or a multi-story chase in a Collins Avenue condo tower. We’re the Hollis crew serving Surfside from our Miami office, and we’ve learned that sealing ducts here means something different than it does inland. The salt air, the vertical duct runs, the building management protocols in these beachfront towers, they all change how we approach the job. Call us at (361) 326-5060 and we’ll give you a written price before we start.
Why Hollis Air Duct Cleaning Is Surfside’s Preferred Duct Sealing Company
We’ve been handling Duct Sealing work in Surfside long enough to know the difference between a 1960s low-rise off 96th Street and a 1980s high-rise on the oceanfront. That matters because the access points, the duct materials, and the coordination with building staff are completely different animals.
Our technicians are background-checked and uniformed, and they arrive inside the quoted window. The price is written down before any tool comes out of the van. That’s The Garrison Standard, and it’s how every Hollis location operates, including ours serving Duct Sealing in Surfside.
Phones get answered by a live person, 24 hours a day. No voicemail loops, no “we’ll call you back Monday” when your building manager needs a certificate of insurance by Thursday.
Every repair we make carries the 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit. Not every outfit in South Florida puts that on paper.
Duct Repair in Surfside
Duct Repair in Surfside usually starts with a phone call about a room that won’t cool evenly or a spike in the FPL bill that the homeowner can’t explain. In this town, the culprit is often salt corrosion at the duct boot or a separated flex connection in a vertical chase that’s been rattling since the Reagan administration. A typical duct repair in Surfside runs $280 – $650 for standard fixes, with more extensive corrosion replacement in beachfront towers climbing toward $800 – $1,400.
Rust-Damaged Boots and Plenum Connections
The salt spray along Collins Avenue and Ocean Terrace doesn’t stop at your balcony railing. We regularly find duct boots and plenum connections rusted through in towers built in the 1960s and 70s, where original galvanized steel has had decades of ocean exposure. We cut out the corroded section, fabricate a replacement, and seal it with mastic rated for coastal HVAC applications.
Separated Flex in Shared Chases
In Surfside’s mid-rise buildings, flex duct gets pulled and compressed by maintenance crews working in tight chase spaces. A separated flex run dumps conditioned air into the wall cavity and pressurizes the gap between units. We reconnect with mechanical fasteners and seal with mastic, not tape that’ll peel in the humidity.
Air Duct Sealing in Surfside
Air Duct Sealing in Surfside is the preventative step that keeps conditioned air inside your ducts and unconditioned attic or chase air out of your breathing space. For a typical Surfside condo unit, whole-system sealing runs $450 – $950. Single-family homes with accessible attic ductwork generally fall in the $650 – $1,200 range, depending on how many runs need attention and whether we’re working with original galvanized or newer flex systems.
Mastic Sealing for Coastal Conditions
We use duct sealing mastic, a thick, brush-applied compound that hardens into a permanent seal. Unlike foil tape, which degrades in Surfside’s humidity and salt air, mastic flexes with thermal expansion and won’t peel off in three years. We apply it at every joint, seam, and penetration in the accessible ductwork.
Negative-Air Testing for Verification
After we seal, we test. Our Nikro negative-air equipment pressurizes the system and measures leakage at the duct blower. You’ll see the before and after numbers in writing. If the building engineer wants documentation for the association, we provide it.
Trusted Brands We Service in Surfside
We stock parts and sealing materials from Aprilaire, Abatement Technologies, and Guardsman, the same filtration and containment brands that commercial crews specify for South Florida’s coastal conditions. For Surfside customers, that means we’re not ordering parts from a warehouse three counties away and making you wait. We carry mastic compounds rated for high-humidity environments, corrosion-resistant fasteners, and replacement boots in common sizes for the post-war and mid-century inventory that dominates this market. When a building manager on Harding Avenue needs a certificate of insurance or a specific brand spec for the association records, we’ve got the documentation ready. Fast turnaround here isn’t a slogan, it’s having the right materials on the truck when we pull up.
Common Duct Sealing Problems We See in Surfside Homes
- Salt corrosion at coastal tower duct connections. In the buildings along Collins Avenue, we find rust holes in duct boots and plenum connections that have been eating salt air for forty or fifty years. The conditioned air leaks into the chase, and the unit runs longer to compensate.
- Original galvanized duct with failed seams. Surfside’s 1950s-through-1980s housing stock relied on galvanized steel duct with snap-lock seams. Thermal cycling and humidity open these seams over decades, and the leakage adds up across a full system.
- Flex duct compressed in tight chases. Maintenance access in Surfside’s condo buildings is often limited to small panels in common hallways. Flex duct gets kinked, pulled, or partially disconnected by workers who can’t see the full run.
- Biological growth weakening mastic and tape. The year-round humidity in Surfside promotes mold and mildew inside duct systems. Older tape adhesives fail, and even some sealants degrade when they’re constantly damp. We remove the growth and reseal with compounds formulated for wet conditions.
Pricing for Duct Sealing in Surfside, FL
Here’s what duct sealing costs in Surfside’s market, based on the jobs we’ve priced and completed here:
| Service | Typical Range in Surfside |
|---|---|
| Single-system seal, condo unit (accessible) | $450 – $750 |
| Single-system seal, single-family home | $650 – $1,200 |
| Multi-system building, per unit | $400 – $650 |
| Duct repair with sealing (rust damage, separated flex) | $280 – $650 |
| Extensive corrosion replacement + seal | $800 – $1,400 |
What moves the number? Accessibility is the big one. A condo unit with a drop ceiling and open chase is straightforward. A system buried above a plaster ceiling with no access panel takes longer. The material of your ductwork matters too, galvanized with multiple failed seams needs more labor than flex with a few disconnected points. And if we’re coordinating with building management for common-area access, that scheduling affects the timeline but not the price, we quote the work, not the waiting.
We also handle Air Duct Cleaning in Surfside and Dryer Vent Cleaning in Surfside, and many customers bundle services for efficiency.
Every price is written down before we start. No per-vent add-ons, no surprises when the technician is already in your home. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Surfside
Our crews work throughout South Florida and across the state. We regularly handle duct sealing in Surfside itself, and we’re available in Jacksonville, Miami, Tampa, and Orlando. Dispatch and scheduling are coordinated from our Miami office, with local crews serving each market.
Serving Surfside, FL - Our Local Coverage Area
We’re based in the Surfside 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 Surfside
We typically schedule Surfside appointments within 2 – 4 business days, and we coordinate around building management hours for condo towers that restrict contractor access. Call (361) 326-5060 to check current availability, estimates are free.
Yes, we work across Surfside, from the single-family streets near Harding Avenue to the high-rise condos along Collins Avenue and Ocean Terrace. We carry the insurance certificates and access protocols that building associations in this area require.
We answer calls live 24 hours a day, and we prioritize situations where a duct failure has disabled cooling in a Surfside home or where a building manager needs immediate containment to protect common areas. For scheduled maintenance, we book inside our standard window.
Surfside prices run comparable to Miami Beach and Bal Harbour, slightly higher than inland markets like Kendall because coastal tower work requires additional containment, coordination, and corrosion-rated materials. The ranges we quote above reflect actual Surfside jobs we’ve completed.
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. That’s The Garrison Standard, and it applies to every Surfside customer.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Surfside and South Florida since 2004.