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 Cleburne
We serve Cleburne from our Dallas-Fort Worth dispatch office, and our crews know the difference between a 1960s ranch off West Henderson and a 2005 build on the south side near Chisholm Trail Parkway. That local knowledge matters because duct sealing in Cleburne isn’t a generic job. The bentonite drilling dust that settles into every attic here, the original galvanized runs buried in decades of blown-in insulation, and the high water-table moisture near the Nolan River bottom all create failure modes you won’t find in a Fort Worth manual. When you call (361) 326-5060, you’ll reach a live person who can schedule a free estimate and explain what our technicians will actually look for in your specific house.
Why Hollis Air Duct Cleaning Is Cleburne’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Cleburne customers come back because we write the price down before we touch anything and we leave the site clean. The 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails or the airflow drops within a year, we return and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed, and they arrive inside the quoted window. They carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, not hardware-store patch kits. When we seal ducts in Cleburne, we explain what we found, show you camera footage if you want to see it, and price the repair before we open a single can of mastic.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to get on the schedule.
Air Duct Sealing in Cleburne
Air Duct Sealing in Cleburne means finding where conditioned air is escaping your supply ducts or where unconditioned attic air is being pulled into your returns, then closing those gaps with mastic, mesh, and mechanical fasteners that last. Most Cleburne homes we work on lose 20 to 30 percent of their heated or cooled air through leaks before it ever reaches the registers. In a town where AC runs hard from May through September, that’s money bleeding into your attic every hour the compressor kicks on.
Our typical Air Duct Sealing job in Cleburne runs $450 to $950 for a whole-system seal on a single-family home. Smaller partial repairs on one or two disconnected branch runs start around $280. We price by the system, not by the vent, and we write it down before we start.
What We Find in Older Cleburne Homes
The post-war ranches and bungalows built from the 1950s through the 1970s dominate Cleburne’s core neighborhoods. Their original galvanized steel trunk lines were never designed for today’s continuous cooling loads, and decades of expansion and contraction have opened seams you can’t see from the register. We pull these runs out of the blown-in insulation, inspect with a camera, seal the joints, and reinstall them properly. No ceiling demolition required.
When Sealing Becomes a Repair
Sometimes we open an attic and find a branch run completely disconnected, crushed by a homeowner who stepped on it years ago, or rusted through at the seam. Sealing alone won’t fix that. We’ll show you the damage, quote the repair separately, and only proceed with your go-ahead. The written price covers everything we agreed to, nothing more.
Duct Sealing Services in Cleburne
Duct Sealing Services in Cleburne cover the full range of what it takes to make your ductwork hold pressure: inspection with remote camera, leak detection, mechanical reconnection of separated runs, mastic sealing of joints and seams, reinforcement with fiberglass mesh at high-stress points, and post-repair airflow verification. We don’t spray a sealant fog and call it done. Our Duct Sealing team works by hand, joint by joint, because that’s the only way to guarantee the seal lasts through a Cleburne summer.
Our Duct Sealing Services in Cleburne typically range from $450 to $950 for a complete system, with smaller targeted repairs starting at $280. Whole-system replacement of deteriorated flex duct runs in newer homes can run $1,200 to $2,400 depending on linear footage and attic access.
The Bentonite Dust Problem
Cleburne sits over the Barnett Shale, and the fine pale bentonite drilling dust that coats everything in town doesn’t stay outside. It filters into attics, settles on duct surfaces, and works its way into joints and seams. That dust is abrasive and hygroscopic, meaning it attracts moisture. In the humid Cleburne attic environment, it accelerates corrosion and prevents standard tape adhesives from bonding properly. We clean the joint surfaces before we seal them, and we use mastic rated for contaminated substrates.

Flex Duct in South and East Side Subdivisions
The 1990s and 2000s builds on Cleburne’s south and east sides used flex duct systems strung through hot attics. Over time the inner liner kinks at the air handler connection, the insulation sleeve slides, and the plastic collar separates from the register boot. Sealing these requires more than caulk. We often need to rebuild the connection with a proper metal start collar, secure the flex with nylon draw bands, then seal the assembly. Our technicians carry the fittings and tools to do it in one visit.

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 Cleburne
We stock sealing and repair materials from Abatement Technologies, Guardsman, and Aprilaire so we don’t waste your time ordering parts. Abatement Technologies supplies the negative-air equipment we use to test system pressure before and after sealing. Guardsman and Aprilaire provide the filtration products we recommend when a sealed duct system still needs better air cleaning at the return. Our Rotobrush rotary brush systems clean joint surfaces before mastic application, which is critical in Cleburne where bentonite contamination would otherwise cause premature seal failure. Because we carry this inventory on our Cleburne service vans, most jobs finish same-day without a return trip.
Common Duct Sealing Problems We See in Cleburne Homes
- Original galvanized runs buried in blown-in insulation. These 1950s – 1970s steel trunk lines have rusted-through seams and disconnected branch runs that only show up when you pull the duct out for inspection. The insulation hides the damage and traps moisture against the metal.
- Bentonite dust plus attic humidity forming mud-like films. Along the Nolan River bottom and near the old Santa Fe depot, condensation in duct lines mixes with drilling dust to create a coating that pushes flex-duct joints apart and reopens sealed seams within a season if the surface isn’t properly prepared.
- Crushed or kinked flex duct at the air handler. In the newer south Cleburne subdivisions, the original installer often left too little slack at the plenum connection. Years of vibration and thermal cycling kink the inner liner, restricting airflow so severely that sealing alone cannot restore performance.
- Disconnected register boots in ceiling cavities. The drywall contractors in the 1990s builds sometimes pushed boots out of alignment during installation. The flex duct appears connected but has pulled free inside the ceiling, dumping conditioned air into the wall or attic space.
Pricing for Duct Sealing in Cleburne, TX
A typical whole-system duct sealing in Cleburne runs $450 to $950. Partial repairs on one or two leaking branch runs start around $280. If we find deteriorated flex duct that needs replacement rather than sealing, budget $1,200 to $2,400 depending on how much line we replace and how difficult the attic access is.
What moves the price: the age and material of your ductwork, the extent of contamination from bentonite dust, whether we need to remove blown-in insulation to access the runs, and whether disconnected or crushed sections require repair before sealing can begin. We inspect first, write the full price down, and get your approval before we open a tool case. No per-vent pricing, no teaser coupons that balloon at the door, no surprises.
Call (361) 326-5060 for a free estimate. We’ll schedule a time that works, arrive inside the window, and show you exactly what we found before we quote the repair.
We Also Serve Cities Near Cleburne
Our crews run regular routes to Cleburne and the surrounding communities, including Keene, Joshua, Alvarado, and Burleson. The same written pricing, the same 365-Day Done Right Promise, and the same background-checked, uniformed technicians apply in every town we serve.
Serving Cleburne, TX - Our Local Coverage Area
We’re based in the Cleburne 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 Cleburne
The Barnett Shale bentonite dust is unique to this area, and it infiltrates ductwork at rates we don’t see in Fort Worth or Hillsboro. That dust is abrasive, attracts moisture, and prevents standard sealing tapes from bonding properly. Combined with Cleburne’s older housing stock and longer cooling seasons, leaks here cost more and fail faster. Call (361) 326-5060 for a free estimate on your system.
Yes. We access ductwork through the attic, not the ceiling. Original galvanized runs in Cleburne’s post-war ranches sit above the insulation layer, and we pull them up for inspection, seal the joints, and reinstall them without cutting drywall. The only exception is if a register boot has fallen inside the ceiling cavity, which requires a small access hole we patch before we leave. Call (361) 326-5060 to schedule an inspection.
Homes near the historic Nolan River bottom and the old Santa Fe depot sit close to the water table, so duct lines in crawl spaces and low attics see more condensation than properties on higher ground. That moisture mixes with bentonite dust to form a mud-like film inside the ducts that accelerates corrosion and pushes seals apart. We address this by cleaning joint surfaces with rotary brushes before applying mastic rated for wet-contaminated substrates. Call (361) 326-5060 if you live in this area and suspect moisture damage.
Yes, and often more urgently than homeowners expect. The flex duct installed in 1990s and 2000s south side builds degrades in hot attics, with the plastic collar separating from register boots and the inner liner kinking at the air handler. Sealing these systems requires rebuilding connections with proper metal start collars and draw bands, not just caulk. Our technicians carry the parts to do this in one visit. Call (361) 326-5060 for an estimate.
We start with a visual and camera inspection of your supply and return ductwork, then run a pressure test to quantify leakage. We show you the findings, write a price for the recommended sealing or repair, and get your approval. Our technicians clean all joint surfaces, apply mastic with fiberglass mesh reinforcement, reconnect any separated runs, and verify improved airflow and reduced leakage before we leave. The entire process typically takes three to five hours for a whole-house seal. Call (361) 326-5060 to book your appointment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Cleburne and the Dallas-Fort Worth area since 2004.




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