Duct Sealing in Gladeview - Leakage Measured, Then Priced in Writing

Fast, Reliable Duct Sealing Across Gladeview

Duct sealing in Gladeview typically runs $450 – $1,200 for a whole-home job on a 1950s concrete block house, and most repairs are completed in a single visit. We also offer Gladeview Dryer Vent Cleaning if your laundry exhaust needs attention. We’ve worked on hundreds of these homes, so we know what’s hiding under the slab before we even run a camera. If you’re dealing with musty air, uneven cooling, or dust that keeps coming back no matter how much you wipe down surfaces, call (850) 660-3272 for a written estimate before any work starts.

Call (850) 660-3272

Gladeview’s housing stock is mostly small, single-story concrete block and stucco homes from the 1950s and 1960s. The original galvanized steel ducts in those houses have been fighting Gladeview’s humid, salty air for six decades. When a duct crumbles or separates, sealing it properly is the difference between cool air reaching your living room and cold air leaking into the slab. That’s the work we do every week here.

Why Hollis Air Duct Miami Is Gladeview’s Preferred Duct Sealing Company

Our Duct Sealing team has seen more of Gladeview’s underslab duct runs than most companies see in their entire service area. The 1950s floor registers, the shallow chases cut into concrete, the corrosion patterns from decades of humidity creeping up from the slab: none of this surprises us anymore. That’s what you want when someone quotes a repair on a 60-year-old duct system.

We show up in uniform, background-checked, and on time. The price is written down before we touch a register, and it doesn’t move at the door. Gladeview homeowners have told us the same story enough times: a low coupon price that turned into something far bigger once the van was in the driveway. We don’t run that game. Roy Castellanos, who leads our crew, holds the operation to The Garrison Code: arrive inside the window, price in writing, do the job by the book, leave the site clean. The 365-Day Done Right Promise backs every job. If a sealed joint fails within a year, we come back and fix it at no charge.

We serve all of Gladeview and coordinate scheduling from our Miami office. Phones are answered by a live person around the clock, so when you call about a duct problem on NW 71st Street or over by NW 74th Street, you won’t sit through a voicemail loop.

Key Takeaways: Duct Sealing in Gladeview

• Whole-home duct sealing in Gladeview typically costs $450 – $1,200, depending on home size and how many runs are accessible.
• Most 1950s-60s concrete block homes here have original galvanized ducts that are corroding from the inside out.
• We can often seal underslab duct runs without tearing up floors, using camera inspection and targeted access at the register boots.
• Every job gets a written price before work starts and is covered by our 365-Day Done Right Promise in writing.

Duct Repair in Gladeview

Duct Repair in Gladeview is the work we do when a run has separated at a joint, crushed under the slab, or rusted through enough to pull humidity and dirt into the airflow. It costs anywhere from $200 for a simple boot reseal to $700 or more when multiple runs need mastic sealing and hardware replacement. The job involves locating the leak with a camera inspection, cleaning out the debris and mold contamination from the section, then sealing every accessible joint with mastic and aluminum tape rated for high heat and humidity.

Floor Register Boot Separation

The original floor registers in these concrete slab homes take a beating. A vacuum cleaner bump, a dropped pot, a kid running through the living room: any of it can crack the seal where the register boot meets the slab. That gap is exactly where dust, sand, and pest debris get pulled into the supply side of your system. We reset the boot, seal the joint with mastic, and reattach the register properly.

Pinholed Galvanized Runs Under the Slab

Sixty years of Gladeview’s humidity and salt air corrodes galvanized steel from the outside in. The result is pinhole leaks that pull damp, unconditioned air from the slab chase into your ductwork. That’s the musty smell when the AC kicks on. We can often reseal these runs with fiberglass-backed mastic applied through the register opening, avoiding any floor tear-out.

Air Duct Sealing in Gladeview

Air Duct Sealing in Gladeview addresses the entire duct network, not just a single failed joint. A typical 1950s concrete block home here runs $700 – $1,200 for full accessible sealing. That includes camera inspection, sealing every joint we can reach with mastic and aluminum tape, and verifying airflow at each register when we’re done. It’s the lasting fix for rooms that never get cool enough, no matter how low you set the thermostat.

Whole-System Joint Sealing

We don’t spot-seal one joint and call it a day. On a whole-system job, we work through every return and supply run, applying mastic to any seam where conditioned air is leaking into the slab. It takes a few hours on a typical Gladeview house. The result is air that actually reaches the rooms it’s supposed to reach, at the temperature your AC produces it.

Leak Verification with Airflow Testing

Before we leave, we check airflow at each register and compare it against the system’s rated output. If a register is still pulling weak after sealing, we know there’s a hidden disconnect further down the run and we’ll locate it with the camera. You get a straight answer about what was found, what was sealed, and what the airflow test showed at the end. No vague “should be better now” language.

Trusted Brands We Service in Gladeview

We work on systems paired with filtration and IAQ equipment from Honeywell and Aprilaire, plus commercial-grade sealing materials from Abatement Technologies. Because Gladeview has so many original galvanized duct runs still in service, we keep stock of mastic, aluminum tape rated for high-humidity environments, and replacement register boots in our Miami hub so we’re not running back and forth when your job is scheduled. Your existing HVAC brand doesn’t matter: if the ductwork is leaking, we can seal it. If your system uses an Aprilaire filter cabinet that’s accumulated debris, we’ll clean and reseal around that cabinet while we’re in there.

Common Duct Sealing Problems We See in Gladeview Homes

• Corroded galvanized ducts under slabs. The 1950s homes around NW 71st Street and NW 74th Street route supply and return runs through shallow chases cut into the concrete. Decades of humidity and salt-laden air create pinhole leaks that pull damp slab air into your supply side, spiking mold growth behind registers.
• Kicked or crushed floor registers. Most Gladeview homes still have original floor registers. When one gets kicked or flattened, the register-to-duct seal breaks. Dirt, sand, and whatever else has settled in the slab chase now has a direct path into your living space.
• Fabric duct tape failures. The grey cloth tape from the hardware store fails within months of a Gladeview summer. High heat and humidity cause the adhesive to dry and crack, leaving the same leak behind. We use mastic and UL-listed aluminum tape designed for ductwork, not a roll from the shelf.
• Disconnected runs from past renovations. These concrete block homes don’t make it easy to reroute ducts. We regularly find runs that were disconnected during a previous bathroom or kitchen renovation and never reattached. That means a portion of your conditioned air has been pouring into the slab for years, not into the room it was designed for.

Pricing for Duct Sealing in Gladeview, FL

We Also Serve Cities Near Gladeview

We work throughout Miami-Dade County, including Duct Sealing jobs in Miami, Miami Beach, Miami Gardens, and Doral. If you’re in Gladeview, we’re already on the road here weekly, and the same written-pricing and 365-Day Done Right Promise apply no matter which side of the county line you’re on.

FAQs About Duct Sealing in Gladeview