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 Lantana
Duct sealing in Lantana, TX typically runs $450 – $1,200 for a whole-home system, and most jobs are scheduled within 48 hours of your call. If you live in one of the older concrete block homes east of US-1, near Hypoluxo Road or the neighborhoods around the Intracoastal Waterway, you’re probably losing conditioned air through corroded galvanized ducts that haven’t been touched since the 1960s or 70s. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our crews serve Lantana from our Dallas-Fort Worth dispatch office. We know what salt air and humidity do to ductwork here. Call us at (361) 326-5060 for a free written estimate.
Why Hollis Air Duct Cleaning Is Lantana’s Preferred Duct Sealing Company
We’ve been in business since 2004, and our Duct Sealing team has worked enough homes in Lantana to know the difference between a quick tape job and real remediation. Our technicians are background-checked and uniformed, and they arrive inside the quoted window. Every job gets a written price before we touch anything, and every repair is backed by our 365-Day Done Right Promise. If the seal fails or the mold returns within a year, we come back at no charge. Phones are answered by a live person 24 hours a day, 7 days a week.
Lantana homeowners don’t need another outfit that quotes low and invoices high. They need a crew that inspects with a camera, explains what they found, and prices the full fix. That’s The Garrison Standard.
Duct Sealing Services in Lantana
Duct Sealing Services in Lantana involve more than closing gaps in metal runs. In this market, especially in the mid-century homes near the Intracoastal Waterway, sealing is often the final step after source removal and microbial treatment. We pressurize the system, locate leaks with smoke or digital manometers, then seal with mastic or specialized tape rated for high-humidity environments. A typical whole-home duct sealing job in Lantana runs $450 – $1,200 depending on accessibility, the extent of corrosion, and whether we need to replace crushed or disconnected sections.
Leak Detection and Pressure Testing
We start every job by measuring static pressure and using visible smoke to find exactly where your conditioned air is escaping. In Lantana’s older homes, we regularly find leaks at the plenum connection, at joints in the attic trunk line, and where flexible duct meets rigid galvanized. The test takes about 30 minutes and gives us a map of what needs sealing.
Mastic Sealing and Joint Repair
We use water-based duct mastic, not standard foil tape, on metal joints in humid attics and crawlspaces. Mastic remains flexible after curing and won’t peel when condensation forms on the duct exterior. For severely rusted sections, we cut out the damaged metal and splice in new galvanized or flexible duct before sealing.
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 Lantana
Duct Insulation in Lantana is critical because uninsulated metal ducts in hot, humid attics sweat. That condensation drips onto ceiling drywall, breeds mold, and destroys the sealant we just applied. We wrap sealed ducts with fiberglass insulation and a vapor barrier, typically R-6 or R-8 depending on attic space. A typical duct insulation job in Lantana runs $300 – $800 for a single-story home, often bundled with sealing work.
Condensation Control in Humid Attics
Lantana’s year-round humidity means attic temperatures can hit 140°F in summer while your supply air runs at 55°F. Without insulation, that temperature differential creates constant sweating. We size the insulation to eliminate surface condensation and secure it with mechanical fasteners, not tape alone.
Insulation Replacement After Mold Remediation
When we find mold inside old duct lining, we remove the contaminated insulation entirely, treat the metal with antimicrobial coating, seal all joints, then install new insulation. Reusing old insulation would reintroduce spores into the airstream.
Trusted Brands We Service in Lantana
We carry equipment and materials from Rotobrush, Aprilaire, and Abatement Technologies. Rotobrush rotary brush systems handle the source removal phase in Lantana’s older ducts. Aprilaire filtration products and Abatement Technologies HEPA negative-air machines protect your home during the job. We stock mastic, insulation, and antimicrobial coatings locally, so we’re not waiting on shipments while your system stays open.
Common Duct Sealing Problems We See in Lantana Homes
- Sealing over rusted or moldy galvanized ducts without first removing microbial growth traps moisture and causes sealant to peel within months. We see this in mid-century homes east of US-1, where homeowners hired a cheap crew that taped over visible rust. The mastic never bonded. We strip it all back, treat the metal, and start clean.
- Using standard foil tape or mastic on ducts in humid crawlspaces or attics where condensation forms, leading to adhesive failure and new leaks. Lantana’s humidity requires sealants rated for wet environments and mechanical reinforcement at stress points.
- Ignoring disconnected or crushed runs found during cleaning and sealing only accessible joints, leaving major pressure losses and continued mold spore distribution. We camera-inspect the full system. If a run is crushed under attic storage or disconnected at a junction box, we repair it before sealing anything.
- Applying sealant to ducts that lack proper insulation, so condensation forms on the exterior and degrades the new seal from the outside. In Lantana, sealing and insulation are a matched pair. One without the other wastes your money.
Pricing for Duct Sealing in Lantana, TX
A typical whole-home duct sealing job in Lantana runs $450 – $1,200. Duct insulation adds $300 – $800. What moves the price: the number of runs, attic accessibility, whether we need to replace rusted or crushed sections, and whether microbial remediation is required first. We do not quote per-vent teaser prices. We inspect, write the full price, and get your approval before touching anything. Estimates are free. Call (361) 326-5060.
In Lantana’s extreme coastal humidity and salt-laden air, duct sealing is often moisture and microbial remediation, not just closing leaks. Original galvanized supply and return ducts in mid-century concrete block homes east of US-1, especially within a mile of the Intracoastal Waterway, corrode from salt air and feed mold colonies in the persistent humidity. We recently worked a 1962 single-story block home on Hypoluxo Road where the homeowner complained of musty odors and uneven cooling. During camera inspection, we found crushed and disconnected runs in the original galvanized ductwork, with rust scale and visible mold growth near the air handler. We performed source removal with negative pressure and HEPA filtration, then sealed the leaks with mastic and applied an antimicrobial coating to the interior before insulating the attic runs to control condensation.
We Also Serve Cities Near Lantana
Hollis crews also handle Duct Sealing in Lantana and surrounding areas including Houston, San Antonio, Dallas, and Fort Worth. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office; local crews serve each market with the same written pricing and 365-Day Done Right Promise.
Serving Lantana, TX - Our Local Coverage Area
We’re based in the Lantana 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 Lantana
Older homes east of US-1 have original galvanized ducts that corrode from salt-laden Atlantic air, while newer condos use sealed flex duct in tight chases with less exposure. The mid-century block homes also tend to have disconnected runs and plenum leaks that decades of humidity have worsened. Call (361) 326-5060 for a camera inspection of your specific system.
No, not if mold is already growing inside the ducts. Sealing alone traps moisture and can make odors worse. We remove microbial growth first, apply antimicrobial coating, then seal and insulate to prevent recurrence. The full remediation is what eliminates the smell. Call (361) 326-5060 for an inspection.
Salt air accelerates corrosion of galvanized metal ducts, creating pinholes and rust scale that standard sealants won’t bond to. We grind or replace rusted sections, treat the metal, and use mastic rated for coastal environments. Homes within a mile of the Intracoastal need this level of prep. Call (361) 326-5060 for a written estimate.
Uneven cooling between rooms, musty odors that return after cleaning, visible rust on vent registers, and utility bills that spike in summer all point to leaks. If your ducts were cleaned but the problems persist, the air is escaping before it reaches your rooms. Call (361) 326-5060 for pressure testing.
Dryer vent sealing is a separate service. We inspect and clean dryer vents, but the duct sealing covered on this page refers to your HVAC supply and return system. If your dryer vent needs attention, we can schedule that as an add-on or standalone job. Call (361) 326-5060 to discuss both.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lantana and the Dallas-Fort Worth area since 2004.