Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Kennedale
Duct sealing in Kennedale is not a once-every-decade job. It’s a recurring necessity because this city sits downwind of the I-20 industrial corridor, and the fine gray particulate that settles into attic and crawlspace ductwork here forces a different maintenance clock than homeowners in Mansfield or Fort Worth face. We run sealed-system diagnostics, find exactly where conditioned air is escaping, and close those leaks with mastic, not tape. If you’re seeing dust on furniture days after cleaning, or your AC runs constantly through July and August, call (682) 255-2572 for a straight answer and a written price before any work starts.
Why Hollis Air Duct Fort Worth Is Kennedale’s Preferred Duct Sealing Company
The Garrison Standard is not a slogan. It’s the rule our background-checked, uniformed technicians work under on every Kennedale job: arrive inside the quoted window, put the price in writing before touching anything, do the work by the book, and leave the site clean. Roy Castellanos leads the crew, and the 365-Day Done Right Promise backs every seal we apply. If a seam fails within a year, we come back at no charge. No negotiation. That’s the kind of guarantee most outfits won’t put on paper, and it’s why homeowners off Dick Price Road and along Little School Road keep our number.
We know Kennedale’s housing stock because we’ve worked inside it. The 1960s and 70s ranch homes with original fiberboard ductwork behave completely differently than the new construction going up near Kennedale Speedway Park. Different failure modes, different sealants, different expectations. That local knowledge means we show up already knowing what we’re likely to find in your attic.
Styles & brands we work with




Duct Sealing Services in Kennedale
Duct Sealing Services in Kennedale mean finding and closing every leak point in your HVAC duct system so the air you paid to condition actually reaches your living spaces. In this city, the job starts with a camera inspection because the gray I-20 dust masks leak locations until you look inside. From there, we apply mastic at every seam, joint, and plenum connection, then run a pressure test to confirm the system holds. A typical whole-home duct sealing job in Kennedale runs $400 to $1,200 depending on duct length, access, and how much of the system is reachable. We put that price in writing before work starts, and it does not move.
Attic and Crawlspace Sealing
Kennedale’s heat-cool cycles punish attic ductwork. Expansion and contraction at joints in older ranch homes breaks apart old tape sealant within a season, sometimes faster. We seal those joints with mastic rated to flex with the duct, so the repair lasts longer than the cheap tape jobs that failed before.

Return-Side Sealing
Unlined returns in split-level Kennedale homes pull fine dust straight from the attic and crawlspace into your air handler. Sealing the supply side alone leaves registers clogged if the return isn’t addressed. We seal both sides, because a system is only as tight as its weakest connection.

What happens when you call
- 1
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 Kennedale
Duct Insulation in Kennedale homes matters more than in surrounding suburbs because unconditioned attics here hit brutal temperatures from May through September, and poorly insulated ducts lose conditioned air to the attic before it ever reaches a register. We wrap or replace insulation on exposed duct runs, seal the duct body first, then insulate over it so you’re not paying to cool attic air. Typical duct insulation for a single-story Kennedale ranch runs $600 to $1,800 depending on linear footage and accessibility. The written quote you get before we start is the price you pay when we finish.
Attic Duct Wrap
Fiberboard ductwork in 1970s Kennedale homes often has insulation that’s compressed, torn, or saturated with dust from decades of attic heat. We remove the failed wrap, seal the duct, and re-insulate with proper R-value material matched to the local climate. The result is cooler supply air and a system that doesn’t work as hard.
Outbuilding and Shop Duct Runs
Many Kennedale properties have detached workshops, pool houses, or garage apartments with flexible duct runs that separate at couplings when temperatures swing. Those leaks are often worse per linear foot than anything in the main house. We inspect, seal, and insulate those runs the same way we treat your home system, with the same written price and the same one-year promise.
Trusted Brands We Service in Kennedale
We work on duct systems connected to every major HVAC brand, and we use professional-grade sealing tools from Rotobrush and Nikro, with filtration products from Abatement Technologies, Honeywell, Aprilaire, and Guardsman. That equipment matters when you’re pulling decades of I-20 dust out of a 50-year-old duct system. Having the right negative-air machines and HEPA filtration on the truck means we finish the job without blowing that fine gray particulate back into your Kennedale living room. If your system needs a specific filter or component, we stock common parts for fast turnaround on local jobs.
See the difference
Before
After
Before
After
Before
AfterCommon Duct Sealing Problems We See in Kennedale Homes
- Fiberboard joint failure on ranch homes: The 1960s and 70s construction around Kennedale often used fiberboard ductwork, and decades of heat-cool cycling breaks down the sealant at those attic joints. We see leaks reopen within a single season when tape was used instead of mastic.
- Gray I-20 dust clogging registers: The industrial fallout along the I-20 corridor deposits a fine gray particulate into duct systems at rates far higher than Mansfield or Arlington. Even a well-sealed supply side can’t stop this dust if the return side is pulling unfiltered attic air.
- Condensation at panned joist returns: Older Kennedale split-levels often have panned joist returns that sweat during humid summers. That moisture dissolves poorly applied tape sealant, and the leak returns before the season ends.
- Outbuilding duct separation on acreage properties: Flexible duct runs to workshops and pool houses on larger Kennedale lots separate at couplings due to temperature swings and ground movement on unpaved-road properties. Those separations leak conditioned air into unconditioned spaces and pull in dust from the surrounding open land.
Pricing for Duct Sealing in Kennedale, TX
Whole-home duct sealing in Kennedale typically runs $400 to $1,200. Duct insulation adds another $600 to $1,800 depending on footage and access. The biggest variable is access: a single-story ranch with an open attic is faster to work in than a split-level with tight crawlspace sections. Outbuilding duct runs are priced per project, and we give you a written number before any work begins. What we don’t do is quote a low teaser price and inflate it after the van is in your driveway. The price Roy Castellanos writes on your estimate is the price you pay. Call (682) 255-2572 for a free estimate.
We Also Serve Cities Near Kennedale
Our Duct Sealing crews cover the entire southern DFW metro. If you’re in Mansfield, Fort Worth, Haltom City, or Bedford, we bring the same written pricing, the same 365-Day Done Right Promise, and the same background-checked technicians to your door. Learn more about all our services on the Duct Sealing in Kennedale page or call us directly.
Serving Kennedale, TX - Our Local Coverage Area
We’re based in the Kennedale 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 Kennedale
Every two years is a realistic interval for Kennedale homes exposed to I-20 corridor fallout. The fine gray particulate loads duct interiors faster than neighboring suburbs, and leaks that were sealed properly can still develop at joints where heat-cool cycling stresses the connections. A camera inspection every 24 months catches reopened leaks before they cost you real money on the utility bill. Call (682) 255-2572 to schedule an inspection.
Duct sealing alone will not fully stop dust if your return side is pulling unfiltered air from an unpaved-road environment. The dust comes from the return pulling attic or crawlspace air into the system, and sealing only the supply side leaves that path open. The correct sequence is to seal both supply and return, then HEPA-vacuum the system under negative pressure so the dust already inside doesn’t recirculate. We do both on every Kennedale sealing job.
Older Kennedale ranch homes built in the 1960s and 70s typically have fiberboard ductwork that degrades differently than the sheet metal used in new construction. Fiberboard absorbs moisture from humid summers, expands, and breaks the bond of tape sealant. It also doesn’t hold tape well from day one. Mastic is the correct sealant for fiberboard because it flexes with the material, and that’s what we use on every ranch home job.
Yes, wood heat changes the preparation step before sealing. Creosote-laden particulate from wood stoves coats the interior of metal ducts and prevents mastic from bonding properly. If we’re sealing ducts in a home that burns wood regularly, we mechanically clean the sealing surfaces first, then apply mastic. Skipping that step means the seal fails within months.
Outbuilding duct runs are often longer, installed with flexible duct, and exposed to bigger temperature swings than the main house system on a Kennedale acreage property. Flexible duct separates at couplings due to thermal expansion and ground movement, and those leaks are impossible to see without a camera inspection. We treat outbuilding systems the same as home systems: inspect, seal, pressure test, and cover under the 365-Day Done Right Promise. Call (682) 255-2572 for a written quote on any outbuilding ductwork.
Written by Roy Castellanos, Owner at Hollis Air Duct Fort Worth, serving Kennedale and the surrounding DFW metro.