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 Carrollwood
We dispatch our Duct Sealing crews to Carrollwood from our Miami office, and we’ve learned the neighborhood’s quirks after years of working its ranch homes and split-levels. Carrollwood’s 1960s through 1980s housing stock sits under heavy oak canopy that dumps pollen and debris into attics year-round, and the humid subtropical climate here means air conditioning runs almost constantly. That combination – old flex duct, high humidity, and nonstop blower operation – creates leaks that most homeowners don’t notice until their energy bill climbs or a room stops cooling evenly. If you’re seeing either, call us at (361) 326-5060. We’ll quote a written price before we touch anything.
Why Hollis Air Duct Cleaning Is Carrollwood’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. We operate under The Garrison Standard: arrive inside the quoted window, price in writing before work starts, complete the job by the book, and leave the site clean. In Carrollwood, that standard matters because the work is often more complex than it first appears.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Every job carries 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. The price we write down is the price you pay. It does not move at the door.
Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for someone to pick up.
Air Duct Sealing in Carrollwood
Air Duct Sealing in Carrollwood is rarely a simple matter of brushing mastic over a joint. The homes here – mostly single-family ranches and split-levels built from the 1960s to the 1980s – often contain original flex duct in attics that has been compromised by decades of high humidity, loose insulation, and in some cases, fine sand drawn in from nearby golf course bunkers. We start with a camera inspection to see what we’re actually dealing with before we quote any work.
A typical Air Duct Sealing job in Carrollwood runs $450 – $1,200 depending on accessibility, the condition of existing ductwork, and whether we find disconnected runs or asbestos tape that must be handled first. We do not quote per-vent pricing. We price the whole system, in writing, before we start.
Asbestos Tape Identification and Safe Handling
Many Carrollwood homes from the 1980s have asbestos tape wrapping duct joints. Sealing over it without proper abatement traps fibers and creates a health hazard. We identify this tape during camera inspection and remove it under negative pressure with HEPA filtration before applying new sealant. This step adds time and cost, but skipping it is not an option under The Garrison Code.
Disconnected Flex Runs in Attics
Flex duct in Carrollwood attics often collapses or disconnects at the air handler because years of loose insulation and humidity have degraded the original connections. Simple mastic sealing won’t fix a duct that’s no longer attached. We reconnect the run, support it properly, then seal – so the repair lasts.
Duct Sealing Services in Carrollwood
Duct Sealing Services in Carrollwood address the leaks, gaps, and separations that develop in aging HVAC systems over decades of continuous use. Our crews use professional-grade equipment from Nikro and Abatement Technologies to pressurize the system, measure leakage, and apply mastic and mesh to accessible joints. The goal is straightforward: restore the duct system so it delivers the air you’re already paying to cool, instead of losing it into the attic.
Most Carrollwood homeowners need Duct Sealing Services after noticing hot rooms, rising electric bills, or dust blowing from registers. The cost for a standard sealing job in this market typically falls between $450 and $1,200, with more complex cases involving asbestos abatement or multiple disconnected runs reaching the higher end. We always provide a written price before any work begins.
Static Pressure Testing Before and After
We measure static pressure at the air handler before we start and after we finish. This gives us a hard number that proves the system is moving air more efficiently. In Carrollwood’s older homes, we regularly see pressure drops of 20 – 40% after proper sealing and reconnection of flex runs.

Mastic and Mesh Application
We seal accessible joints with duct mastic reinforced with fiberglass mesh. This outlasts foil tape and creates a flexible, durable bond that holds up in hot Carrollwood attics. We don’t use hardware-store tape as a permanent solution.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Carrollwood
Our equipment roster includes Nikro negative-air machines, Rotobrush rotary brush systems, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. These are the same tools commercial crews use, not hardware-store gear. For Carrollwood customers, this means we stock the parts and materials to complete most jobs without waiting on special orders. If your system uses Honeywell or Aprilaire filtration components, we can inspect, clean, and seal around them without disrupting the manufacturer’s specifications. Fast turnaround matters in a climate where you can’t leave the AC off for long.
Common Duct Sealing Problems We See in Carrollwood Homes
- Asbestos tape on 1980s duct joints. The tape fails and crumbles when disturbed, and sealing over it without proper abatement traps fibers in the airstream. We identify it during camera inspection and remove it under controlled conditions before applying new sealant.
- Flex duct collapsed or disconnected in attics. Years of loose insulation pressing down, combined with Carrollwood’s attic humidity, cause flex runs to sag, kink, or pull free from the air handler. The homeowner feels weak airflow; we find a duct dumping cooled air into the insulation.
- Fine sand in return ducts near golf courses. Homes along the Carrollwood Village golf course pull bunker sand into return ducts. The abrasive particles wear through sealant at the blower motor and supply plenum, creating leaks that recur even after standard sealing.
- Original ductwork never professionally cleaned or sealed. Many Carrollwood homes have duct systems that have run continuously since the Carter administration without maintenance. Decades of accumulation hide leaks, and the first thorough inspection often reveals multiple failure points.
Pricing for Duct Sealing in Carrollwood, FL
Here’s what duct sealing costs in Carrollwood’s market:
| Service | Typical Range |
|---|---|
| Standard duct sealing (accessible joints, no asbestos) | $450 – $750 |
| Sealing with flex run reconnection (1 – 2 runs) | $650 – $950 |
| Sealing with asbestos tape abatement | $900 – $1,200 |
| Comprehensive sealing with multiple disconnected runs | $1,000 – $1,500 |
What moves the price: attic accessibility, the number of disconnected runs we find, presence of asbestos tape requiring abatement, and whether we need to remove debris or sand buildup before sealing. We do not quote per-vent teaser prices. We inspect, we write down one flat price for the whole system, and that number does not change at the door. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Carrollwood
Our crews work throughout the region, and we regularly dispatch to Carrollwood from our South Florida scheduling office. We also serve Jacksonville, Miami, Tampa, and Orlando with the same written pricing and 365-Day Done Right Promise.
Serving Carrollwood, FL - Our Local Coverage Area
We’re based in the Carrollwood 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 Carrollwood
We identify asbestos tape during our initial camera inspection and remove it under negative pressure with HEPA filtration before applying any new sealant. Sealing over asbestos tape without proper abatement traps fibers in your airstream and violates our safety protocols under The Garrison Code. The abatement step adds to the job cost but protects your home’s air quality and ensures the new sealant bonds to clean metal. Call (361) 326-5060 for a free estimate that includes asbestos assessment.
Homes near the Carrollwood Village golf course draw fine bunker sand into return ducts through ground-level intakes and gaps in the building envelope. The sand is abrasive. It wears through sealant at the blower motor and supply plenum, and it recirculates through living spaces. We see this pattern regularly enough that we check for sand accumulation as part of our standard inspection in that neighborhood. Call (361) 326-5060 if you’ve noticed gritty dust near your registers.
Standard duct sealing in Carrollwood runs $450 – $750, with more complex jobs involving asbestos abatement or multiple disconnected flex runs reaching $900 – $1,500. We do not use per-vent pricing. We inspect your system, write down one flat price for the complete job, and that price does not change once work begins. Estimates are free – call (361) 326-5060.
No. Sealing applies to intact joints and connections. If your flex duct has collapsed, kinked, or pulled free from the air handler, we need to reconnect and support it first, then seal. We regularly find this condition in Carrollwood’s 1960s – 1980s ranch homes where attic humidity and loose insulation have degraded original connections over decades. The repair is straightforward once identified, but it requires hands-on reconnection, not just mastic. Call (361) 326-5060 for an inspection.
Most well-maintained duct systems need sealing inspection every 5 – 10 years, but Carrollwood’s conditions – continuous AC operation, high attic humidity, and aging original ductwork – mean we recommend checking every 3 – 5 years. If you’ve never had your ducts inspected and your home was built before 1990, schedule a camera inspection now. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Carrollwood and the greater Tampa Bay area since 2004.




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