Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Palmetto Estates
Duct sealing in Palmetto Estates typically runs $450 – $1,200 for a whole-home job, depending on how many leaks we find and what the ducts are made of. We’re the crew that shows up when we said, writes the price down before touching anything, and stands behind the seal for a full year. Palmetto Estates homes sit in the Redland agricultural belt, which means your ducts pull in fine black muck soil, pesticide drift, and organic dust that neighboring suburbs never see. That’s exactly why we treat sealing as the real fix, not an upsell after a cleaning. Call (850) 660-3272 and we’ll give you a written quote before any work starts.
Why Hollis Air Duct Miami Is Palmetto Estates’s Preferred Duct Sealing Company
We’ve worked enough homes off SW 168th Street, SW 152nd Avenue, and around the 33187 zip code to know what Palmetto Estates ductwork actually looks like after 40 or 50 years. The houses out here were mostly built between the 1960s and 1990s, and a lot of that original ductwork is still in place. Roy Castellanos leads our team, and he’s built the whole operation on The Garrison Standard: written prices, written guarantees, and a 365-Day Done Right Promise that says if the seal fails within a year, we come back at no charge. No arguing, no re-quote, no “that’s a different problem now.”
What that means for you in Palmetto Estates is simple. You know the price before we start. You know who’s walking into your home, because our technicians are background-checked and uniformed. And you know the work is covered in writing for a full year. We answer our phones with a live person, 24 hours a day, seven days a week. When a post-storm leak opens up a duct boot at 9pm, you’re not leaving a voicemail and hoping someone calls back Monday. You call, you get a person, and we schedule the visit on the spot.
Our Duct Sealing crews carry Rotobrush rotary brush systems and Nikro negative-air machines, plus commercial-grade mastic and UL 181 foil tape. That’s the same gear commercial building crews use, and it matters when you’re sealing 50-year-old fiberglass duct board that’s been soaking up Redland humidity for decades. We explain what we’re doing in plain English on every job. No jargon, no moving targets.
Styles & brands we work with
Duct Insulation in Palmetto Estates
Duct Insulation in Palmetto Estates is usually about replacing the original fiberglass wrap on attic duct runs that’s gone thin, torn, or fallen off entirely. When insulation fails, the cold air inside the duct hits warm attic air and condenses. That condensation drips, soaks the duct board, and feeds mold. In Palmetto Estates, the attic air is brutal: high humidity, 120-plus degrees in summer, and hurricane-season moisture that never really dries out. A typical insulation replacement runs $350 – $800, depending on how many linear feet of duct we’re rewrapping and whether the attic is walkable or tight.
What the job involves
We remove the old fiberglass wrap, clean the duct exterior, and install new R-6 or R-8 insulation with vapor barrier facing. The barrier is the key part. Without it, moisture moves straight through the insulation and condenses on the duct surface anyway. Most original Palmetto Estates homes never had a proper vapor barrier on attic ductwork. That’s a 50-year-old gap we close on nearly every insulation job.
Signs you need it now
Look for water stains on the ceiling below attic ducts, a musty smell when the AC first kicks on, or visible condensation on duct exteriors. If your air handler is attic-mounted, which is common in the low-slope roof homes throughout Palmetto Estates, the problem gets worse faster. The shorter the roof, the less ventilation the attic gets. Heat and moisture sit up there and work the insulation hard.
HVAC Duct Sealing in Palmetto Estates
HVAC Duct Sealing in Palmetto Estates is what we do when the ducts aren’t just dirty, they’re leaking. A typical whole-home sealing job runs $500 – $1,100, and that includes finding the leaks, sealing them with mastic and UL 181 foil tape, and retesting to confirm the system holds pressure. Most Palmetto Estates homes we visit were built with duct systems that have never been pressure-tested. The leaks have been there since the house went up. Leaky ducts pull attic air, crawlspace air, and in this area, fine Redland soil into the airstream you breathe.
What we seal and how
We seal supply and return runs, boots, collars, and plenum connections. Mastic goes on the rigid joints, foil tape on the flex connections, and we always follow up with a digital manometer test to verify static pressure after the job. That last step has become non-negotiable in Palmetto Estates because the winter growing season loads filters with black muck so fast that restricted airflow can mask or mimic a leak. You have to know what the pressure is actually doing.
When sealing beats another cleaning
If you had your ducts cleaned and the dust came back within a few weeks, you have a leak pulling unfiltered attic or field dust into the system. Cleaning removes what’s there. Sealing stops what keeps coming in. In Palmetto Estates, with the amount of organic dust moving through the air during planting and harvest, sealing is usually the piece that makes a cleaning actually last. That’s the pattern we see on nearly every older home out here.
Trusted Brands We Service in Palmetto Estates
We stock mastic and UL 181 foil tape rated for the job, and we’re set up to work on duct systems that use Honeywell filtration, Aprilaire media cabinets, and Guardsman UV components. The Rotobrush rotary brush system and Nikro negative-air machines we run are the same ones commercial duct crews use. The point is this: when we seal your ducts in Palmetto Estates, the filtration and airflow components upstream don’t get compromised by undersized repairs or the wrong material. We keep the common sizes and fittings on the trucks, so most sealing jobs are done in a single visit without waiting for a parts run from Miami.
Serving Palmetto Estates means knowing that a lot of the ductwork in this area is original 1960s and 1970s fiberglass duct board. That material reacts differently to mastic than modern sheet metal does. The board swells in humidity, which cracks mastic-only seals within two seasons. We account for that with the right tape-plus-mastic combination and a pressure retest to prove the seal holds. A generic duct company that works mostly in newer Miami suburbs may never have seen that failure mode. We see it every week out here.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Palmetto Estates Homes
- Mastic-only seals cracking on 1960s fiberglass duct board. Palmetto Estates humidity makes the board swell and contract, and mastic alone can’t flex with it. Within two seasons the seal fails and the leaks come back. The fix is a mastic and UL 181 foil tape combination, then a pressure retest.
- Roof rats and tree frogs chewing through foil tape on attic duct collars. The farmland that surrounds Palmetto Estates brings pest pressure most Miami suburbs don’t deal with. Animals gnaw through tape seals on attic collars, reopening leaks even on properly sealed systems. We use stainless steel mesh over critical attic connections on homes with active pest intrusion.
- Post-hurricane leaks at disconnected boots. Wind-driven rain forces duct joints apart where the boot meets the ceiling register on low-slope roofs. After any named storm, pressure testing usually shows leaks at those exact points. We check them after every major wind event, not just when you call us for a problem.
- Crushed flex runs behind knee walls and under attic flooring. Older Palmetto Estates homes often have flex duct run in places nobody can see. On a 1970s home off SW 168th Street, our camera inspection found a crushed 14-inch return flex duct behind a knee wall. We replaced it and then used mastic and UL 181 foil tape to seal all supply and return registers, dropping the blower motor’s amp draw by 18% and killing the dust plume that was coating the living room every time the AC kicked on.
Pricing for Duct Sealing in Palmetto Estates, FL
A whole-home duct sealing job in Palmetto Estates runs $500 – $1,100. If you need duct insulation replaced at the same time, that adds $350 – $800 depending on linear footage and attic access. Homes with original 1960s fiberglass duct board tend to land on the higher end because the material needs more prep and the right sealant combination to hold. Homes with mostly sheet metal ducts seal faster and cost less. The price is written down before any work starts. What we quote is what you pay. Call (850) 660-3272 for a free estimate, and we’ll put numbers on paper before a single tool comes off the truck.
The 365-Day Done Right Promise covers every seal, every boot, every collar. If anything we sealed fails within a year, we come back and fix it at no charge. Including a free second visit. That’s not a negotiation. It’s in writing on every job, and it’s how Roy Castellanos has run this crew since day one.
We Also Serve Cities Near Palmetto Estates
Our duct sealing crews cover Palmetto Estates and the surrounding communities: Miami, Miami Beach, Miami Gardens, and Doral. Same written pricing, same 365-Day Done Right Promise, same background-checked uniformed technicians on every job. If you’re in one of those areas and need duct sealing, call (850) 660-3272 and we’ll get you scheduled.
Serving Palmetto Estates, FL - Our Local Coverage Area
We’re based in the Palmetto Estates 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 Palmetto Estates
Because the Redland-area dust that’s filling your ducts isn’t coming from inside the ducts. It’s being pulled in through leaks in the ductwork from the attic, the knee walls, and the unsealed boots where ducts meet registers. Cleaning removes what’s already collected. Sealing stops the constant inflow of field soil and organic dust that refills the system within weeks. If you had a cleaning and the dust came back in a month, the real problem is a leak, not a dirty duct. Call (850) 660-3272 and we’ll pressure-test the system to find exactly where it’s pulling from.
Farm operations adjacent to Palmetto Estates create two direct problems for duct seals. First, fine black muck soil from tilled fields moves through the air during the winter vegetable growing season and gets pulled into duct leaks, which means we always verify static pressure after every sealing job instead of assuming the seal fixed the airflow issue. Second, farmland harbors roof rats and tree frogs that chew through foil tape on attic duct collars, reopening seals within months. We address both by pressure-testing after the job and using pest-resistant materials on attic connections in homes with active intrusion. These are failure modes we simply don’t see in Cutler Bay or Kendall.
Yes, because the mold smell usually comes from condensation, and condensation usually comes from air leaks and failed insulation around the air handler and the ducts connected to it. When warm humid attic air meets cold duct surfaces, water forms. In Palmetto Estates, where attic-mounted air handlers sit under low-slope roofs with minimal ventilation, that condensation never fully dries. Sealing the connections and replacing failed insulation stops the condensation at the source, which kills the moisture that mold needs. The smell fades once the surfaces stay dry.
It involves a different access strategy than a typical attic job. With a low-slope roof, the attic space is often tight, hot, and partially inaccessible from a standing position. We use extended-reach tools, camera inspections, and sometimes access from inside the home through ceiling registers to reach buried or cramped duct runs. The work is slower and more physically demanding, which is reflected in the higher end of our $500 – $1,100 range for whole-home sealing. But the standard doesn’t change: every joint we can reach gets sealed, every job gets pressure-tested, and the price is written before we start. Call (850) 660-3272 and we’ll tell you exactly what your roof situation means for the job.
For most Palmetto Estates homes, a properly sealed duct system should be re-tested every three to five years, and after any major hurricane or wind event that could have shifted the ductwork. The agricultural dust itself doesn’t wear out seals, but the pest pressure and the humidity-driven expansion of old duct board do. If we find cracked mastic, chewed tape, or pressure loss during a retest, we reseal the affected sections. Homes within a quarter mile of active farm fields usually need retesting more often than homes deeper into the residential streets, simply because the constant soil dust loads the system and reveals any small leak faster than a cleaner environment would.
If your ducts are leaking, or you just want to know where the dust is coming from, call (850) 660-3272. We’ll give you a free estimate, a written price, and a straight answer about what your Palmetto Estates ductwork actually needs.
Written by Roy Castellanos, Owner at Hollis Air Duct Miami, serving Palmetto Estates and surrounding communities.