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.
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AfterFast, Reliable Duct Sealing Across Lealman
We’re the crew Hollis Air Duct Cleaning sends to Lealman when homeowners call about leaky ducts, weak airflow, or musty air coming through the registers. Our dispatch runs out of our Miami office, and we’ve got Lealman on regular rotation. Call us at (361) 326-5060 and we’ll get you scheduled, usually within a few days.
Lealman’s not like the newer suburbs. Most of these homes went up in the 1950s and 60s, concrete block with original fiberboard ductwork that’s been breathing Florida humidity for sixty-plus years. We’ve worked on enough of them to know where the problems hide. That matters because duct sealing done wrong here, sealing over mold without treating it first, traps spores inside the liner and you’re right back where you started by next season.
Our Duct Sealing team carries Rotobrush agitation tools, Nikro negative-air machines, and HEPA filtration. We don’t guess at the condition of your ducts. We run a camera first, show you what we’re looking at, and write the price down before any work starts. That’s The Garrison Standard, and it’s how we operate on every job in Lealman.
Why Hollis Air Duct Cleaning Is Lealman’s Preferred Duct Sealing Company
We’ve been at this since 2004 as part of the Garrison Partners family. In Lealman, that longevity means something because we’ve seen the same housing stock age, and we know what fails and when. Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive.
Phones get answered by a live person, 24 hours a day, seven days a week. No voicemail loops, no waiting until Monday for a callback. When you call (361) 326-5060, you talk to a human who can schedule you.
Every job gets a written price before we touch anything, and every repair is covered by our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge, including a free second visit. We put that in writing on every invoice. Competitors in this trade rarely match that in writing.
We serve Lealman specifically, not just as an afterthought on a Tampa route. We know the difference between a 1958 bungalow off 46th Avenue North and a 1960s ranch near 54th Avenue, and we know both likely have attics where flex duct has been baking since the Johnson administration.
Duct Repair in Lealman
Duct Repair in Lealman usually means fixing torn flex duct in hot attics, reattaching collapsed fiberboard runs, or replacing rusted metal connections that have separated after decades of vibration. Most Lealman homeowners need it when they notice weak airflow at one register, hot spots in certain rooms, or their AC running constantly without cooling the house. A typical duct repair in Lealman runs $180 – $450 depending on accessibility and material.
Attic Flex Duct Replacement
Lealman attics hit 140 degrees in summer. That heat degrades flex duct adhesive and causes sags where ducts detach from boots. We cut out the damaged section and install new insulated flex with mechanical connections, not tape that’ll fail in six months.
Supply Boot and Return Box Sealing
The connection between your duct and the register boot is a common failure point in Lealman homes. We remove the old sealant, inspect for condensation damage to the surrounding drywall or framing, and reseal with mastic rated for Florida humidity.
Air Duct Sealing in Lealman
Air Duct Sealing in Lealman is the systematic closure of leaks, gaps, and disconnected joints in your duct system using brush-on mastic, aerosol sealant, or mechanical repair depending on the duct material and condition. Most Lealman homeowners need it when energy bills spike, rooms won’t cool evenly, or they smell musty air from the vents. A typical whole-system air duct sealing in Lealman runs $800 – $1,800 for a single-family home, with larger or more accessible systems at the higher end.
Mold-First Sealing Protocol
In Lealman’s 1950s – 60s concrete-block bungalows, we rarely seal without first inspecting for black mold on fiberboard liners. Sealing over active mold traps spores inside where humidity keeps them growing. We remove the mold with Rotobrush agitation under negative pressure, then seal. This is standard for us, not an upsell.
Aerosol Duct Sealing for Accessible Systems
For metal duct systems in good structural condition, we offer aerosol sealing that pressurizes the ducts and seals leaks from the inside. It’s effective for pinhole leaks and small gaps, but only after we’ve confirmed the duct interior is clean and dry.
Trusted Brands We Service in Lealman
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies, the same brands commercial crews use. For Lealman homeowners, that means we don’t order parts from across the state and make you wait. We carry common sizes of flex duct, mastic, register boots, and Honeywell media filters on the van. If your system uses Aprilaire whole-home filtration or Abatement Technologies HEPA equipment, we service those too. Most repairs in Lealman get completed in one visit because we arrive prepared.
Common Duct Sealing Problems We See in Lealman Homes
- Black mold inside original fiberboard ducts. We open the air handler closet in a Lealman bungalow and find the fiberboard liner spotted with mold from decades of humidity cycling. Sealing over this without treatment guarantees regrowth within months.
- Shared HVAC chases in multi-unit buildings. In denser parts of Lealman, duct leaks in one unit pull conditioned air from neighbors, so sealing only your unit leaves problems unresolved. We inspect chase integrity and coordinate access when needed.
- Torn flex duct with condensation damage. Lealman attics cook flex duct adhesive until it fails, then condensation soaks the insulation. Tape or mastic on wet, degraded flex is a temporary fix at best. We replace the damaged section properly.
- Dryer vent stacks clogged with lint. Many Lealman buildings share a vertical dryer vent stack. Lint buildup creates fire risk, and improper sealing around the duct penetration worsens airflow. We clean the stack and seal penetrations with fire-rated materials.
Pricing for Duct Sealing in Lealman, FL
A typical duct sealing job in Lealman runs $800 – $1,800 for a whole single-family system. Partial sealing of accessible leaks starts around $350. Duct repair for isolated damage runs $180 – $450. What moves you within these ranges: how much of the system we can access, whether we find mold that needs removal first, and whether we’re working with original fiberboard, flex duct, or metal.
We don’t quote per-vent or bait you with a teaser price that doubles once we’re inside. We inspect with a camera, show you the condition, and write one flat price per system before any work starts. That price doesn’t move at the door. Estimates are free. Call (361) 326-5060 to schedule yours.
We Also Serve Cities Near Lealman
Hollis Air Duct Cleaning dispatches crews throughout the region, including Jacksonville, Miami, Tampa, and Orlando. Each location operates independently under The Garrison Standard. If you’re in Lealman, you’re getting our Lealman crew with local knowledge of this specific housing stock.
Serving Lealman, FL - Our Local Coverage Area
We’re based in the Lealman 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 Lealman
Yes, in most cases we can seal fiberboard ducts after removing the mold first. We use Rotobrush agitation under negative pressure with HEPA filtration to clean the interior liner, then apply a brush-on sealant before sealing joints. Call (361) 326-5060 and we’ll camera-inspect to confirm your ducts are structurally sound enough to seal.
We inspect the shared chase before sealing your unit, because leaks in neighboring ducts can undo our work. When chase integrity is compromised, we document it and coordinate with building management or adjacent units to seal the full run. We handle the scheduling complexity so you don’t have to.
Sealing helps if the flex is structurally intact with small leaks at joints. If the flex is brittle, water-damaged, or sagging from failed supports, we replace those sections first, then seal the new connections. We don’t charge you to seal duct that’s going to fail anyway.
Fall and spring are ideal because attics are cooler, making the work faster and the mastic cure more reliable. But we seal ducts year-round in Lealman – summer demand is highest because that’s when leaks become unbearable, and we schedule accordingly.
Yes, if the odor comes from mold or mildew inside leaky ductwork. Sealing prevents humid outside air from entering and condensing, which stops the moisture that feeds mold. If mold is already present, we remove it during the sealing process. Call (361) 326-5060 for an inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lealman since 2004 as part of the Garrison Partners family.