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 West Little River
Duct sealing in West Little River typically runs $850 – $1,600 for a full system, depending on house size and how many disconnected or crushed runs we find. Most one-story concrete block homes in West Little River fall between $950 and $1,250. Call (850) 660-3272 for a written quote before we touch anything. The crews at Hollis Air Duct Miami work the streets between NW 79th Street and the Airport Expressway regularly, so we know exactly what these 1950s and 60s-era duct systems look like inside.
Why Hollis Air Duct Miami Is West Little River’s Preferred Duct Sealing Company
Roy Castellanos runs our West Little River jobs, and he holds the crew to The Garrison Code on every single visit: arrive inside the window, put the price in writing, do the work by the book, leave the site clean. That is the whole list. No surprises, no van-side renegotiation. Dispatch is coordinated from our Miami office, but the technicians you see in West Little River are local to this corridor and know the housing stock.
Most of the homes we seal here were built before duct sealing was even a trade practice. The result is decades of slow air loss, dust pull-through, and humidity problems that a basic duct cleaning will not fix on its own. Our customers in West Little River call us back because the repair holds. We back every sealing job with the 365-Day Done Right Promise: if it fails within a year, we return and make it right at no charge.
Key Takeaways
- We serve the full West Little River area, from NW 79th Street up to NW 95th Street and the flanking residential blocks off NW 27th Avenue.
- Every West Little River sealing job gets a written price before work starts. The number does not move.
- One-year written guarantee on sealing and insulation work, including a free second visit if anything fails.
Styles & brands we work with
Duct Sealing Services in West Little River
Duct Sealing Services in West Little River mean something specific here: we are dealing with hard, old ductwork that has had decades to pull apart. The typical job involves a camera inspection through the supply and return runs, then re-securing disconnected joints, sealing each seam with mastic, and patching holes where plenum connections have rusted or shifted. In this neighborhood, the failure pattern is consistent: attic heat has dried out the original tape, joints have separated, and the system is pulling hot, dusty attic air into the living space.
A West Little River homeowner needs sealing when the AC runs constantly but rooms stay uneven, when dust reappears on furniture within two days of a full clean, or when utility bills climb during the May-to-October stretch. On average, duct sealing in West Little River costs between $850 and $1,600 for the full system, with most homes falling in the $950 – $1,250 range. That price includes inspection, sealing, and a written one-year warranty.
Supply Duct Sealing
We reseal every accessible supply run from the air handler to each register boot. That includes flattening and refastening collar connections, sealing seams with mastic, and replacing any section that has collapsed. The point is simple: air you paid to cool should make it into the rooms, not into the attic.
Return Duct Sealing
Return runs pull air back to the handler. When they leak, they pull hot attic air, dust, and whatever else is up there into the system. We seal return ducts under negative pressure, which pulls the mastic into the cracks and gaps, then verify with the manometer that pressure balanced across the system.
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.
Duct Insulation in West Little River
Duct Insulation in West Little River is not optional on these homes. Flat and low-pitched roofs put the attic at the hottest point of the house, and uninsulated supply ducts sitting in that heat lose a measurable fraction of the cool air before it ever reaches a room. The problem is worse during the wet season, when humid air condenses on cold duct surfaces and soaks the insulation that is already there.
We insulate supply and return runs with closed-cell duct wrap after sealing, then re-insulate plenums and boots where accessible. Most West Little River homes run $600 – $1,100 for a full attic duct insulation job, depending on the linear footage and condition of what is being replaced. The payoff is immediate: air at the register is measurably colder, and the unit cycles less.
Attic Duct Wrap Replacement
Ripped, water-stained, or rodent-damaged wrap gets stripped and replaced. We install new closed-cell wrap with sealed seams, then button the attic hatch closed with the temperature checked at the farthest register before we leave.
Condensation Prevention
Condensation is the quiet killer for West Little River ductwork. Where we find moisture inside the ducts, we address the cause before wrapping: sealing the leak, correcting panel alignment, and making sure the wrap has no open seams that let humid attic air touch the cold metal.
Trusted Brands We Service in West Little River
We service and seal ductwork from every major brand installed in West Little River homes, and our trucks carry sealing materials that work with them: Rotobrush rotary brush systems handle cleaning before the seal, Nikro negative-air machines keep dust contained during repairs, and Honeywell filtration products help customers who want something better than a standard filter after we close up the system. If the home has an old Guardsman system or an Aprilaire return, the fix is the same: seal it properly, wrap it correctly, and verify the numbers. We stock common sealing supplies on the truck, which keeps turnaround tight for West Little River jobs.
Common Duct Sealing Problems We See in West Little River Homes
- Rusted-through sections in uninsulated attics. The 1950s – 70s homes around NW 27th Avenue and north of NW 79th Street put their ducts in hot attics where condensation settles every night. We regularly find rusted return-air ducts that need full section replacement before any sealing can work. Sealing over rusted metal just traps moisture inside the run.
- Crushed and disconnected return runs. Original ductwork in these concrete block homes often sits under stored items, gets walked on by previous contractors, or simply sags at the joints. A crushed return duct starves the air handler and makes the living room feel like a swamp while the thermostat reads 74.
- Slab floor registers leaking by design. Many West Little River homes built with floor registers have never sealed the gap between the register boot and the slab. That gap pulls sand, dust, and debris from the ground under the house directly into the air you breathe.
- Tape-only repairs from earlier handymen. We see foil tape slathered over joints and plenums, already peeling after one wet season. In this humidity, tape dries out and fails within a year. Mastic applied to a clean, dry surface is the only repair that holds.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in West Little River, FL
Duct sealing for a typical one-story West Little River home runs between $850 and $1,600. Smaller two-bedroom houses with short runs and easy attic access start around $850. Larger houses or systems with multiple disconnected joints, slab register work, or collapsed sections can reach $1,600. Duct insulation runs $600 – $1,100 as a separate line item. The biggest variable is what the camera finds: a system with three clean disconnections is a straightforward fix, while one with rusted returns and soaked insulation takes longer. We give you the written quote before any work starts, and it does not move. Call (850) 660-3272 for a free estimate.
We Also Serve Cities Near West Little River
Our Duct Sealing crews also cover Miami, Miami Beach, Miami Gardens, and Doral. If you live just outside West Little River proper, call us and we will confirm the scheduling window for your street.
Serving West Little River, FL - Our Local Coverage Area
We’re based in the West Little River 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 West Little River
You check the temperature drop between the vent nearest the air handler and the one farthest away, and you look for dust that returns within 48 hours of a full clean. In West Little River, a leaking attic duct pulls hot, dusty attic air into the system, which shows up as warm spots in back bedrooms and a constant film of dust on dark furniture. A camera inspection through the supply and return runs confirms it in about 20 minutes. We include the inspection with every quote. Call (850) 660-3272 to schedule one.
Sealing alone will not stop mold if the attic environment stays humid, but it is a necessary first step. In a 1960s concrete block home with an uninsulated flat attic, the condensation that forms on cold duct surfaces every night is what feeds mold growth on dust inside the runs. We seal the leaks so humid attic air cannot enter the ducts, then replace any rusted or mold-contaminated sections before we wrap and insulate. The combination is what cuts the growth cycle.
Because return ducts are pulling attic dust, insulation particles, and debris through gaps you cannot see. The dense lots between NW 79th Street and the Airport Expressway trap pollen and construction dust, and a leaky return run pulls that straight into the house. Once we seal the return system under negative pressure and verify the pressure balance, the dust stops cycling through the living space. Call (850) 660-3272 and we will tell you exactly what is leaking.
Yes, and it might be the single most effective fix for a slab home. The supply ducts in many West Little River slab homes run under the concrete, but the register boots where they meet the floor are rarely sealed. That gap pulls sand and debris from under the slab directly into the air you breathe. Sealing the boots and resealing the supply runs where accessible cost the tightest part of the total job, and the difference in dust is noticeable within a week.
Most West Little River duct sealing jobs are finished in one day, usually five to seven hours. That includes the camera inspection, cleaning the runs with our Rotobrush system, sealing the joints and plenums, and wrapping the attic ducts. Houses with rusted sections or heavy slab register work may stretch to a day and a half. We tell you the schedule in writing before we start, and the crew does not leave until the pressure numbers match.
One West Little River Job, Told Straight
On a 1950s concrete block home off NW 27th Avenue, a camera inspection located a crushed return-air duct in the attic and a disconnected joint right at the air handler. The homeowner had been fighting uneven cooling in the front bedrooms for two years and had already paid another company to clean the ducts twice. We reconnected and sealed the entire supply and return system with mastic under negative pressure, then insulated the ducts to stop the condensation cycle. The uneven cooling and the musty smell were gone within two days. That is the job we keep doing off the same streets in West Little River, because the housing stock is all the same age and the failures are all the same pattern.
If your West Little River home has original ductwork, you probably already know something is wrong. Call (850) 660-3272 for a free estimate. Roy Castellanos will get you a written price, a straight answer on what is actually leaking, and a crew that shows up on time and leaves the site clean.
Written by Roy Castellanos, Owner at Hollis Air Duct Miami, serving West Little River homes with written-price duct sealing and the 365-Day Done Right Promise.