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 Connerton
Duct sealing in Connerton typically runs $400 – $900 for a whole-home seal, and most jobs are completed in a single visit with the price written down before we start. If your upstairs never cools evenly, your energy bills spike in July, or you feel hot spots near the master bedroom, you’re probably losing conditioned air through gaps in your ductwork.
We know Connerton. Our crews dispatch from the Miami office and cover the full master-planned community regularly, from the newer builds off Connerton Boulevard to the townhome clusters near the community center. We’ve worked in enough of these homes to recognize the patterns: flex duct that kinks in the attic heat, builder-grade seams that separate after the first humid summer, and the steady stream of construction debris that gets trapped in systems installed before the drywall was even finished. Call us at (361) 326-5060 for a free estimate, and we’ll show you exactly where your air is escaping.
Why Hollis Air Duct Cleaning Is Connerton’s Preferred Duct Sealing Company
Connerton homeowners call us because we’ve earned a reputation for showing up inside the window and leaving the price where we found it. Our Duct Sealing in Connerton work is backed by the 365-Day Done Right Promise in writing, not a handshake.
We’ve sealed ducts in homes along Connerton Boulevard, in the townhome courts near the village center, and in the newer single-family sections still filling out the master plan. That repetition matters. We know which builders used rigid trunk lines and which ran flex duct across unconditioned attics where Florida humidity works on the seams year-round.
Our technicians are background-checked, uniformed, and equipped with professional-grade tools from Rotobrush and Nikro. The price is written before any work starts. If the seal fails within a year, we come back at no charge, including a free second visit. That’s The Garrison Standard, and it’s how we’ve operated since 2004.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues.
Duct Insulation in Connerton
Duct Insulation in Connerton addresses a problem that worsens every summer when attic temperatures climb past 130 degrees and your cooled air warms up before it ever reaches the vent. Most Connerton homes have flexible ductwork routed through unconditioned attic spaces, and even perfectly sealed ducts will bleed temperature if the insulation jacket has compressed, torn, or degraded from humidity exposure.
We see this most often in two-story homes built between 2015 and 2020, where long trunk lines run across the attic peak before dropping to second-floor bedrooms. The insulation looks intact from below, but our inspection cameras reveal compression where installers walked the line, gaps at support straps, and condensation staining that means the R-value has collapsed.
A typical duct insulation job in Connerton runs $300 – $700 depending on linear footage and accessibility. We use professional-grade materials from Abatement Technologies and Guardsman, matched to Florida’s humidity demands.
When Insulation Matters More Than Sealing
Some Connerton homes have tight seams but terrible thermal performance. If your ducts are sealed but your second floor still runs 8 – 10 degrees warmer, the insulation is the likely culprit. We measure surface temperature along the full line and show you the numbers before recommending any work.
Builder-Grade Insulation Limitations
The standard insulation on flex duct installed during original construction is rarely sufficient for Connerton’s attic conditions. We upgrade to higher-R jackets where accessible, or wrap exposed trunk lines with additional layers that maintain performance even at peak summer loads.
HVAC Duct Sealing in Connerton
HVAC Duct Sealing in Connerton fixes the conditioned air you’re paying to create and then losing into your attic, your crawl space, or the gaps between walls. In a community where most homes were built after 2015, the leaks usually aren’t from age, they’re from installation quality: seams that were never mastic-sealed, collars that rely on tape alone, and flex duct pulled tight around corners until the inner liner tears.
Our process starts with a pressure test to quantify the leakage. We seal accessible joints with duct mastic, a water-based compound that remains flexible and won’t dry out like tape. For buried lines or tight attic runs, we use aerosol sealant technology that finds leaks from the inside and bonds permanently without tearing open walls.
Whole-home HVAC duct sealing in Connerton typically costs $400 – $900. The return comes in lower energy bills, more even temperatures room-to-room, and less strain on your compressor.
Pressure Testing Before and After
We run a duct blaster or calibrated fan test to measure leakage in CFM at 25 Pascals. You see the before number, we do the work, and you see the after. No guessing, no claims without proof.
Attic Access Challenges
Connerton’s two-story homes often have tight attic scuttles and truss layouts that make hand-sealing difficult. Our crews carry extendable tools and inspection cameras to reach junction boxes and trunk splits that would otherwise go untouched. We document every sealed joint with photos.
Trusted Brands We Service in Connerton
Our Connerton crews work with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, and we stock filtration and sealing products from Honeywell, Aprilaire, and Guardsman. That means no waiting on parts shipped from out of state. If your system needs a specific collar size, mastic compound, or insulation jacket, we typically have it on the van. For duct sealing jobs that reveal deeper issues, we also handle Air Duct Cleaning in Connerton and Dryer Vent Cleaning in Connerton, often scheduling both services in one visit to minimize disruption to your day.
Common Duct Sealing Problems We See in Connerton Homes
- Construction debris in new ductwork. Because Connerton is still actively building out, neighbors on the same street can be in brand-new homes while others are just a few years old. Technicians often find that “new home” duct calls are actually about clearing drywall dust from recent construction, not accumulated household dust. That debris accelerates seal failure by abrading mastic and clogging collars.
- Flex duct sagging in attic heat. Connerton’s humid subtropical climate means attics regularly exceed 130 degrees in summer. Flexible ductwork routed across unconditioned spaces softens, sags between supports, and kinks at bends. Each kink creates turbulence that separates seams and raises static pressure.
- Condensation degrading tape adhesives. High humidity in attic spaces produces condensation on duct surfaces, especially where cold supply lines cross warm attic air. Standard foil tape loses adhesion within two to three years under these conditions. We replace tape with mastic on every job.
- Builder-grade seams at second-floor drops. Connerton’s open-floor-plan homes require long duct runs to reach second-floor bedrooms. Builders often use speed collars and minimal fastening to meet construction schedules. These joints separate under thermal expansion cycles, leaking cooled air directly into the attic.
Pricing for Duct Sealing in Connerton, FL
Whole-home duct sealing in Connerton typically runs $400 – $900. Partial sealing of a single zone or accessible trunk line starts around $250. Duct insulation, when needed alongside sealing, adds $300 – $700 depending on linear footage.
What moves the price: attic accessibility, the extent of leakage we find during pressure testing, whether we need aerosol sealant for buried lines, and whether insulation replacement is required. We do not quote per-vent or per-register pricing. You get one flat price per system, agreed in writing, before any work begins.
Every estimate is free. We inspect the accessible ductwork, run a pressure test if indicated, and hand you a written price. No teaser coupons, no bait-and-switch, no invoice that grows once the van is in your driveway. That’s The Garrison Standard, and it’s how we’ve priced every job since 2004.
Call (361) 326-5060 to schedule your free estimate.
We Also Serve Cities Near Connerton
Our Duct Sealing crews cover the full region from our Miami dispatch office, with regular routes to Jacksonville, Miami, Tampa, and Orlando. Connerton homeowners get the same written pricing, background-checked technicians, and 365-Day Done Right Promise that we bring to every market we serve.
Serving Connerton, FL - Our Local Coverage Area
We’re based in the Connerton 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 Connerton
We typically schedule Connerton appointments within 2 – 4 business days, with dispatch coordinated from our Miami office. Emergency calls for major air loss or system strain get priority scheduling. Call (361) 326-5060 for next available openings.
Yes, we seal ducts throughout the master-planned community, from the established homes near Connerton Boulevard to the newest builds still under construction. Our crews know the builder patterns and common duct layouts in each phase.
We prioritize calls where duct failure has caused complete system shutdown or dangerous attic conditions, and our phones are answered by a live person 24/7. Most standard sealing jobs are scheduled within a few days.
Connerton pricing is consistent with our broader Florida market, $400 – $900 for whole-home sealing. Attic accessibility and home size affect cost more than city location. We do not charge travel fees to Connerton.
Every duct sealing job is covered by our 365-Day Done Right Promise in writing. If the seal fails within one year, Hollis returns and makes it right at no charge, including a free second visit. The warranty is not prorated and does not require you to purchase additional services.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Connerton and the surrounding Florida communities.




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