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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After
Before
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Before
AfterFast, Reliable Duct Sealing Across Bithlo
Duct sealing in Bithlo typically runs $450 – $1,200 for a whole-home system, and most jobs are scheduled within a few days of your call. We’re the local Duct Sealing crew that serves Bithlo directly from our Miami office, with dispatch and scheduling coordinated for the Central Florida area. Call us at (361) 326-5060 for a free estimate.
We know Bithlo’s roads, its housing stock, and the particular way its sandy soil and year-round AC load punish ductwork. From the ranch-style homes off Lake Pickett Road to the manufactured homes near the Econlockhatchee River, we’ve sealed ducts in the kinds of properties that dominate this community. Our technicians arrive uniformed, background-checked, and with the job priced in writing before any work starts.
Why Hollis Air Duct Cleaning Is Bithlo’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our reputation in Bithlo is built on showing up when we said we would and leaving the site clean. Bithlo homeowners don’t call us for flash; they call us because we’re predictable. The price we write down before work starts is the price on the invoice. No one at Hollis has authority to change it at the door.
Our response time to Bithlo is typically two to four business days for standard duct sealing, with emergency scheduling available for active leaks or system failures. We know the area’s unpaved stretches and rural routes, so we plan drive time realistically and communicate if weather or road conditions affect our arrival window. That’s The Garrison Standard: arrive inside the quoted window, price in writing, complete the job by the book.
Roy Castellanos leads our operation, and every technician works under The Garrison Code: accountable, verifiable, and squared away. Background checks are completed before hiring, uniforms are worn on every job, and our 365-Day Done Right Promise covers every repair in writing. If the seal fails within a year, we return and make it right at no charge, including a free second visit.
Duct Sealing Services in Bithlo
Duct Sealing Services in Bithlo address a problem most homeowners don’t notice until their energy bill climbs or a room stops cooling evenly: conditioned air leaking into attics, crawlspaces, and wall cavities before it reaches the registers. Because so much of Bithlo sits on sandy, unpaved stretches and open land, ducts here load with fine silica grit that behaves nothing like household dust – it scours flex duct seams and pinholes them faster, so sealing failures show up as sand trails at registers rather than as obvious tears. A typical whole-home duct sealing in Bithlo runs $450 – $1,200 depending on system size, accessibility, and whether we need to remove debris before the sealant can bond.
Leak Detection and Pressure Testing
We start every sealing job with a pressure test to quantify leakage in CFM25 – cubic feet per minute of air loss at 25 pascals of pressure. In Bithlo’s older ranch homes, we regularly see systems losing 25 – 35% of conditioned air to the attic. That number tells us where to look and how much sealing the system actually needs.
Mastic and Mesh Tape Application
We seal metal trunk lines and plenums with mastic and reinforced mesh tape, not duct tape. Duct tape fails in Bithlo’s attic heat within months. Mastic remains flexible and airtight for years. On flex duct, we use UL-181 rated foil tape on the vapor barrier, then seal the inner liner if accessible.
What happens when you call
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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 Bithlo
Duct Insulation in Bithlo is often the companion service to sealing, because uninsulated or poorly insulated ductwork in a 140-degree attic wastes the very air you just paid to seal. In Bithlo’s climate, where AC runs nearly year-round, attic ducts without proper insulation can gain 15 – 20 degrees before the air reaches your living room. We install foil-faced fiberglass insulation or closed-cell foam wraps depending on duct type and attic clearance, with typical Bithlo jobs running $300 – $800 for partial systems and $800 – $1,500 for full attic re-insulation.
Fiberglass Wrap for Metal Ducts
Metal trunk lines in Bithlo’s older homes benefit from R-6 or R-8 fiberglass wrap with a reinforced vapor barrier. We seal all seams in the insulation jacket with matching tape so moisture can’t penetrate and degrade the fiberglass. This matters especially after Bithlo’s summer storms, when attic humidity spikes.
Foam Board for Plenums and Trunk Transitions
At plenum connections and rectangular trunk transitions, we use rigid foam board with mastic-sealed edges. These junctions are high-velocity points where unconditioned air infiltrates most aggressively. Foam board holds its shape and R-value where flexible wraps sag or compress.
Trusted Brands We Service in Bithlo
Our equipment roster includes Rotobrush rotary brush systems for agitation cleaning, Nikro negative-air machines for debris extraction, and Abatement Technologies HEPA filtration to protect your home’s air during the job, plus Bithlo Dryer Vent Cleaning as part of our full service lineup. For duct sealing materials, we use professional-grade mastics, UL-181 tapes, and Guardsman insulation products – the same supplies commercial HVAC crews rely on, not hardware-store substitutes. We stock common sizes and materials locally, so Bithlo customers aren’t waiting on special orders when a seal fails in July heat.
Common Duct Sealing Problems We See in Bithlo Homes
- Sand-scoured flex duct pinholes. Bithlo’s unpaved roads and open properties generate fine silica grit that infiltrates attic and crawlspace ducts through soffit vents and gaps. This grit doesn’t just collect – it abrades the inner liner of flex duct, creating pinhole leaks that spray sand onto furniture below. We see this most often in homes near Lake Pickett Road and other rural stretches.
- Mastic failure over dirty surfaces. Mastic and mesh tape applied over sandy, dusty flex duct without source removal first – the grit layer keeps the seal from bonding, and it peels within a season of near-year-round AC run time. We always clean before we seal.
- Sealed trunks with ignored flex runs. Sealing the visible trunk and ignoring the attic flex runs, where summer attic heat has already hardened and cracked the inner liner, so leakage just migrates to the next joint. A complete sealing job addresses both.
- Musty odors misdiagnosed as duct leaks. Sealing ducts while well-water or septic musty odors are still being pulled from the air handler closet – homeowners blame the ducts, but the seal won’t fix a moisture source the system is recirculating. We identify the actual source before recommending sealing.
Pricing for Duct Sealing in Bithlo, FL
Whole-home duct sealing in Bithlo typically costs $450 – $1,200. Partial sealing of a single zone or problem area runs $200 – $450. Duct insulation adds $300 – $1,500 depending on coverage. What moves you within these ranges: system size (single-zone versus multi-zone), attic accessibility (crawl versus walk-in), whether we need to clean debris before sealing, and whether flex duct needs re-strapping or replacement.
We do not quote per-vent prices. We price per system, agreed in writing before work starts. Every Bithlo job gets a written scope and fixed price. If we find additional problems during the job, we stop and discuss before proceeding – no invoice surprises. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Bithlo
Hollis Air Duct Cleaning dispatches crews throughout Central and North Florida, including Jacksonville, Miami, Tampa, and Orlando. Our Bithlo customers are served by the same Miami-based scheduling team that coordinates our broader Florida operation, with local technicians assigned to your area.
Serving Bithlo, FL - Our Local Coverage Area
We’re based in the Bithlo 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 Bithlo
Every 3 – 5 years for homes on unpaved stretches, compared to 5 – 7 years for paved-road properties in less dusty environments. The silica grit load here is abrasive and persistent. After summer thunderstorms, Bithlo technicians often find that power outages and system restarts cause dust and debris to settle in ducts, leading to a spike in calls about musty odors and reduced airflow. Call (361) 326-5060 to schedule an inspection and we’ll tell you where your system stands.
Sometimes, but not always. Storm moisture can infiltrate attic ducts through existing leaks, promoting biological growth that smells musty when the system restarts. However, many Bithlo homes are on well water or septic systems, which can add musty odors that residents often mistake for duct problems. We inspect for both duct leakage and external moisture sources before recommending sealing. Call (361) 326-5060 and we’ll sort out the actual cause.
Yes. Manufactured homes are common in Bithlo, and their duct systems – typically flex duct in the belly cavity or overhead – are actually easier to access and seal than site-built attic systems. The same $450 – $1,200 range applies, though many manufactured homes fall in the lower half due to smaller system size. We check for rodent damage in the belly cavity, which is frequent in rural Bithlo settings.
Yes, we seal ductwork in detached workshops, barn offices, and guest quarters with independent HVAC systems. These are often mini-split or small-package units with short duct runs, priced individually after inspection. Bithlo’s many rural properties with outbuildings are a regular part of our work. Call (361) 326-5060 to describe your setup.
We follow SMACNA duct sealing standards and EPA ENERGY STAR duct sealing guidelines, with all materials rated UL-181 for HVAC application. Every Bithlo job is documented with before-and-after pressure test results, and covered by our 365-Day Done Right Promise. If the seal fails within a year, we return and make it right at no charge, including a free second visit.
On a ranch-style home off Lake Pickett Road, our tech found flex duct in the attic sagging between straps, with sand tracked down the inside of the supply and return ducts and register boots blowing grit onto the furniture. We ran a camera inspection, used agitation tools with negative pressure and HEPA filtration to pull the load out, then sealed the pinholes and re-strapped the runs so the blower motor wasn’t fighting leakage. The homeowner’s musty odor complaint dropped off on the follow-up call.
Ready to stop losing conditioned air to your attic? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, written estimate on duct sealing in Bithlo. We’ll show up in the window we quoted, price the job before we touch it, and stand behind the work for a full year.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Bithlo and Central Florida since 2004.