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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Before
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Before
AfterFast, Reliable Duct Sealing Across Heartland
Your upstairs bedroom stays hot in July no matter how low you set the thermostat. Your energy bill climbs every summer even though nothing’s changed. In Heartland, where the clay soil shifts foundations and the humidity hangs heavy from May through September, these aren’t coincidences. They’re the symptoms of ductwork that’s pulling conditioned air into your attic instead of pushing it into your rooms.
We run Duct Sealing calls across Heartland regularly, from the newer master-planned communities off FM 740 to the established neighborhoods near Heartland Parkway. Our crews dispatch from the Dallas-Fort Worth office, so we’re typically on-site in Heartland within the scheduled window we quote you. When you call (361) 326-5060, a live person answers, 24 hours a day, and we’ll get you a written price before any work starts.
Why Hollis Air Duct Cleaning Is Heartland’s Preferred Duct Sealing Company
We’ve been sealing ducts in the Dallas-Fort Worth metroplex since 2004, and Heartland’s explosion of new construction has kept our crews busy here for years. Homeowners in communities like Heartland Meadows and the developments along Ridge Road know our trucks because we’ve fixed the same builder-grade flex duct problems in dozens of their neighbors’ homes.
Our reputation here is built on showing up inside the window, pricing in writing, and leaving the site clean. That’s The Garrison Standard, and it applies to every job we run in Heartland.
Roy Castellanos leads our operation, and he insists on background-checked, uniformed technicians on every call. You know who’s walking into your home before they arrive.
Heartland’s soil is notorious. The expansive clay shrinks in drought and swells after rain, and that movement cracks slab foundations, shifts walls, and separates duct joints in attics and crawl spaces. A crew that doesn’t understand that local pattern will seal what they can reach and miss the separations that matter most. We know where to look.
Air Duct Sealing in Heartland
Air Duct Sealing in Heartland means closing every gap, tear, and disconnected joint in your forced-air system so the air you pay to cool actually reaches your rooms. We use duct sealing mastic, a thick, flexible compound that bonds to metal and flex duct alike, plus mechanical fasteners where joints have pulled apart. In Heartland’s climate, where attics routinely hit 140 degrees in August, that sealant has to survive brutal expansion and contraction cycles.
Most Heartland homeowners need sealing when they notice uneven temperatures between rooms, dust blowing from registers, or energy bills that spike without explanation. In newer neighborhoods like those off East Broad Street, we often find plenum connections that were never sealed at all during construction, a shortcut that bleeds 20 to 30 percent of conditioned air into the attic before it ever reaches your vents.
A typical air duct sealing job in Heartland runs $450 to $1,200 for a single system, depending on how many joints need attention and whether we need to repair crushed flex duct runs. We quote that price in writing before touching anything, and it’s covered by our 365-Day Done Right Promise.
What We Seal First
We start at the air handler plenum, the central distribution point where your system connects to the main trunk line. In Heartland’s newer homes, this is where builders most often skip the mastic, leaving a gap that sucks attic air straight into your system. We seal it properly, then work outward through every branch line and register boot.
When Sealing Becomes Repair
Sometimes the flex duct itself is the problem, crushed by storage boxes in the attic or torn where it crosses a truss. When we find that in Heartland homes, we’ll tell you before we proceed and quote the repair separately. No surprises at the door.
Duct Sealing Services in Heartland
Duct Sealing Services in Heartland cover everything from spot repairs on a single disconnected run to full-system resealing after foundation settling has pulled joints apart. We work on both flex duct systems common in homes built after 2010 and the rigid metal trunk-and-branch systems found in some custom builds near the Heartland town center.
Our process begins with a visual inspection of accessible ductwork, plus a pressure test where we pressurize the system and measure how much air escapes. In Heartland’s humid climate, we also check for condensation points where cold duct surfaces meet hot attic air, a condition that degrades sealant over time and can lead to mold growth inside the system.
Most sealing jobs take three to five hours for a typical 2,000-square-foot Heartland home. We quote $450 to $1,200 for standard residential systems, with larger homes or multiple HVAC units running higher. Every price is written down before work starts, and every job carries the 365-Day Done Right Promise.
Pressure Testing Before and After
We measure your system’s leakage in CFM25, cubic feet per minute at 25 Pascals of pressure, before we seal and again after we’re done. You’ll see the number drop. That’s how you know the work actually happened, not just that we said it did.
Mastic vs. Tape
Foil tape fails in Heartland attics. The adhesive degrades in heat, and the tape peels. We use water-based duct sealing mastic, rated for the temperature swings your attic sees, applied thick enough that it flexes with the duct instead of cracking.
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.
Trusted Brands We Service in Heartland
Our equipment comes from the same suppliers that outfit commercial jobs across Texas. We run Rotobrush rotary brush systems and Nikro negative-air machines on cleaning calls, and for sealing work we stock mastic and reinforcement mesh from Abatement Technologies and Guardsman. These aren’t hardware-store products. They’re formulated for the heat and humidity that Heartland attics throw at them, and we keep common sizes and repair fittings on our trucks so we’re not making a supply run while you’re waiting. If your system uses Honeywell, Aprilaire, or Guardsman filtration components, we can inspect and reinstall them properly after sealing is complete.
Common Duct Sealing Problems We See in Heartland Homes
- Plenum gaps in new construction. Homes built in Heartland’s master-planned communities over the last decade often have plenum connections that were never mastic-sealed at all. The builder’s crew relied on friction fit and hope, and now your attic is conditioned to 72 degrees while your bedroom sweats.
- Foundation-shifted trunk lines. Heartland’s clay soil doesn’t stay put. After a dry summer or a wet spring, slab movement can pull rigid metal trunk ducts away from branch connections in the attic space above. We find separations of an inch or more that have been dumping air for months.
- Crushed flex duct in attic storage. Homeowners in Heartland’s two-story homes often use the attic for holiday decoration storage, not realizing they’re compressing the flex duct runs that feed the upstairs bedrooms. A crushed 8-inch flex duct moves less than half its rated airflow.
- Condensation-damaged seals. Heartland’s humidity means cold duct surfaces in hot attics sweat, and that moisture degrades older tape and even some mastic applications. We use mold-resistant, high-humidity formulations specifically for this climate.
Pricing for Duct Sealing in Heartland, TX
A typical duct sealing job in Heartland runs $450 to $1,200 for a single residential HVAC system. That covers labor, materials, and the pressure test to verify results. If we find crushed or torn flex duct that needs replacement, we’ll quote that separately before we proceed, same written-price rule.
What moves you toward the higher end: multiple HVAC zones, a larger home with long duct runs, or significant repair work beyond sealing. What keeps you toward the lower end: a straightforward reseal of accessible plenum and branch connections with no repairs needed.
We don’t do per-vent pricing. That’s the bait-and-switch game other outfits play, quoting low per-register and then finding reasons to add charges once the van is in your driveway. One flat price per system, agreed before work starts, period. Call (361) 326-5060 for a free estimate. We’ll look at your system, explain what we find, and give you a written number you can take to any other company for comparison.
We Also Serve Cities Near Heartland
Our crews run sealing jobs throughout the metroplex. We regularly serve Heartland homeowners and also dispatch to Houston, San Antonio, Dallas, and Fort Worth from our Dallas-Fort Worth coordination office. If you’re in one of those markets and found this page searching for local help, we have dedicated pages for Air Duct Cleaning in Heartland and Dryer Vent Cleaning in Heartland as well.
Serving Heartland, TX - Our Local Coverage Area
We’re based in the Heartland 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 Heartland
We typically schedule Heartland appointments within two to five business days, and our crews arrive inside the quoted window. Call (361) 326-5060 to check current availability, estimates are free.
Yes, we seal ducts across Heartland, from the newer master-planned communities to established areas near Heartland Parkway and Ridge Road. If your home has forced-air ductwork, we can inspect and seal it.
Our pricing is consistent across the metroplex, a typical Heartland job runs the same $450 to $1,200 range we’d quote in Dallas or Fort Worth for a comparable system. Travel distance doesn’t affect your price.
If any sealed joint fails, any mastic cracks, or any repaired connection separates within one year of our work, we return and make it right at no charge, including a free second visit. That’s written on every job, not implied.
We show you. Before we seal, we run a pressure test that quantifies your leakage in real numbers. After we finish, we run it again. We also photograph accessible problem areas, plenum gaps, separated joints, crushed flex, so you see what we saw. If your ducts are dirty too, we can handle Air Duct Cleaning in Heartland on the same visit with a separate written price.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Heartland and the Dallas-Fort Worth metroplex since 2004.