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 Fountainebleau
We dispatch our Duct Sealing crews to Fountainebleau from our Miami office, and we’re usually on-site in Fountainebleau homes within a couple hours of a scheduled appointment. If you’re in the neighborhoods near Fountainebleau Park, along West Flagler Street, or in the apartment corridors near the Palmetto Expressway, we’ve already been in your building type, probably this month. Fountainebleau’s mix of 1950s – 70s slab-on-grade ranches and low-rise apartments has specific duct problems that don’t show up the same way in newer construction or in houses with basements and attics. We know where the leaks hide here, and we know what it costs to fix them before we start the work. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Fountainebleau’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Miami office has handled enough Fountainebleau jobs that we recognize the street names and building vintages before the customer finishes describing the problem. Our technicians are background-checked, uniformed, and expected to operate under The Garrison Code: arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean. Every repair we perform in Fountainebleau is backed by our 365-Day Done Right Promise – if the work fails within a year, we return 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, so you’re not waiting through voicemail loops when you’ve got a musty bedroom that won’t cool.
Air Duct Sealing in Fountainebleau
Air Duct Sealing in Fountainebleau is rarely about chasing an energy-efficiency rebate or hitting a target on a utility bill. In this market, it’s usually about stopping humid outside air from being pulled into duct runs that are leaking under a slab or inside a soffit, then watching that moisture feed mold growth in the air handler and supply lines. A typical sealing job in a Fountainebleau single-family home runs $850 – $1,400, with apartment systems or partial repairs sometimes landing in the $450 – $750 range. The price is written down before we touch anything, and it does not move at the door.
What We Find Under the Slab
Short duct runs buried in slab-on-grade construction or tucked into soffits don’t give up their problems easily. We run a camera first. Disconnected boots, crushed branches from settling, and tape that dried out decades ago – these are the leaks that matter in Fountainebleau, and they’re almost never visible from a register.
Why Sealing Beats Replacement Here
Because the runs are short and the leaks are usually at joints rather than in the duct body itself, sealing with mastic and reinforced mesh typically restores full airflow without tearing up floors. Replacement is the exception in Fountainebleau, not the rule, and we’ll tell you straight when it’s actually needed.
Duct Sealing Services in Fountainebleau
Duct Sealing Services in Fountainebleau from Hollis include camera inspection, source removal under negative pressure with HEPA filtration when contamination is present, antimicrobial treatment on affected supply and return ducts, and mechanical sealing of joints, boots, and trunk connections using mastic and mesh. We rebalance the blower motor afterward so the air actually reaches the rooms that were starving. A full system sealing in a typical Fountainebleau ranch runs $850 – $1,400; partial repairs on specific problem zones start around $450. We do not quote per-vent prices, and we do not bait with a low number that doubles once we’re inside.
The Camera Inspection Step
Skipping this is how you seal the visible joints and miss the crushed branch that’s actually feeding mold into the air handler. Our crews use Rotobrush camera systems to see inside the run before we commit to a scope of work. The customer sees the footage too.

Antimicrobial Before Mechanical Seal
Sealing over biologically contaminated liner without treatment first traps the mildew inside. It will smell again. We treat first, seal second, and document both so the 365-Day Done Right Promise has a clear baseline.

What happens when you call
- 1
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.
Trusted Brands We Service in Fountainebleau
We stock parts and materials from Honeywell, Aprilaire, and Abatement Technologies for Fountainebleau customers, which means no waiting on a Miami warehouse run for filtration upgrades or antimicrobial products that match your existing system. Our equipment roster includes Nikro negative-air machines and Rotobrush rotary systems – the same tools commercial crews use, maintained to manufacturer spec, and explained in plain terms while we’re in your home. Fast turnaround matters in a climate where AC doesn’t get a day off, and we keep the common sizes and treatment chemicals on our vans so we’re not making two trips.
Common Duct Sealing Problems We See in Fountainebleau Homes
- Foil-tape failures on mid-century trunk joints. The constant cycling between cool supply air and warm attic or soffit temperatures, combined with Fountainebleau’s year-round humidity, dries out adhesive within a season or two. The tape looks intact from the outside but has long since stopped sealing.
- Disconnected runs hidden under slab edges. In the 1968 ranches and similar homes near Prairie Avenue and throughout Fountainebleau’s core neighborhoods, settling or minor foundation movement pulls boots away from trunk lines. The leak is under the floor, invisible, and pulling in humid outside air every time the blower cycles.
- Crushed soffit branches near the air handler. Compact layouts and short runs mean the ductwork is sometimes squeezed into tight chases. We’ve found branches flattened to half their design diameter, creating back-pressure that starves downstream rooms and condensation that feeds mold.
- Sealing over contamination without treatment. Some crews in a hurry will slap mastic on moldy liner and call it done. The leak is closed, but the biological material is now trapped and still off-gassing. The musty smell returns within weeks.
Pricing for Duct Sealing in Fountainebleau, FL
Here’s what duct sealing actually costs in Fountainebleau, based on the jobs we’ve completed here:
| Scope | Typical Range |
|---|---|
| Partial repair (1 – 2 problem zones, camera inspection, seal with mastic/mesh) | $450 – $750 |
| Full system sealing (single-family home, camera inspection, treatment if needed, complete joint and boot seal, rebalance) | $850 – $1,400 |
| Full system with antimicrobial treatment and source removal | $1,100 – $1,800 |
What moves the number: whether we find biological contamination that needs treatment before sealing, how many access points we need to cut to reach soffit or slab-edge runs, and whether the air handler itself needs attention. We price it after inspection, write it down, and that’s the price. No per-vent add-ons, no equipment fees that appear at the end. Call (361) 326-5060 for a free estimate – we’ll give you a range over the phone based on your home’s description, then firm it up on-site.
We Also Serve Cities Near Fountainebleau
Our crews work throughout South Florida and across the state, including Fountainebleau and nearby Jacksonville, Miami, Tampa, and Orlando. Scheduling and dispatch for the Fountainebleau area are coordinated from our Miami office, with local crews who know the building stock and the specific duct problems that come with it.
Serving Fountainebleau, FL - Our Local Coverage Area
We’re based in the Fountainebleau 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 Fountainebleau
Fountainebleau’s tropical monsoon climate means air conditioning runs almost continuously, creating a perpetually damp environment inside ducts that promotes mold and mildew growth. When leaks pull in humid outside air, that moisture feeds biological contamination in the air handler and supply lines – a problem far less severe in drier inland climates where ducts get seasonal rest. Call (361) 326-5060 for an exact quote – estimates are free.
Yes, in most cases. The leaks in Fountainebleau’s slab-on-grade homes are typically at boot-to-trunk joints or in short soffit runs, accessible through existing access panels or small cuts that we seal afterward. Full floor demolition is rare; we confirm what’s reachable with a camera inspection before pricing any invasive work. Call (361) 326-5060 for an exact quote – estimates are free.
Cleaning removes debris and contamination from inside the duct; sealing closes the gaps that let new contamination in and conditioned air out. In Fountainebleau, we regularly see homes that have been cleaned repeatedly but still smell musty because a disconnected slab-edge run keeps pulling in humid outside air and feeding mold growth the cleaning can’t stop. Call (361) 326-5060 for an exact quote – estimates are free.
Signs we see constantly in Fountainebleau: one or two rooms that never reach setpoint despite the rest of the house cooling fine, musty odors that return within weeks of cleaning, or excessive humidity readings at registers. The only way to confirm is a camera inspection – we run the line and show you what we find before quoting any repair. Call (361) 326-5060 for an exact quote – estimates are free.
It does when we find biological contamination inside the duct, which is common here due to constant AC operation and high humidity. Sealing over moldy liner without treatment traps the contamination inside; we treat first, seal second, and document the condition so our 365-Day Done Right Promise covers the full repair. Call (361) 326-5060 for an exact quote – estimates are free.
Ready to stop the musty smell and get every room in your Fountainebleau home to setpoint? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, written estimate. We’ll run a camera inspection, show you exactly what we find, and give you a flat price before any work starts – backed by our 365-Day Done Right Promise in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Fountainebleau and South Florida since 2004.




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