Fast, Reliable Duct Repair & Sealing Across Cleburne
Duct repair and sealing in Cleburne typically costs $180-$650 depending on whether we’re sealing accessible joints with mastic or replacing collapsed flex-duct runs buried under attic insulation. Most Cleburne jobs are completed in a single visit, and our Duct Repair & Sealing in Cleburne crew can usually be on-site within a day of your call.
We’ve been driving out to Johnson County from our Houston headquarters for over 42 years, and we know the territory. Cleburne isn’t a DFW suburb with uniform new construction. It’s a working city surrounded by active farmland and ranchland, with a housing stock that runs heavy on post-WWII ranch homes, 1970s pier-and-beam builds, and newer slab subdivisions on the edges. That mix means every attic is different, every duct system carries its own history, and the dust load coming off those fields is real. When your HVAC kicks on and you see particles in the sunlight, or when one room never heats evenly, the problem is usually in the ductwork, not the unit itself-though our HVAC Cleaning in Cleburne can address unit-side issues too. Call (866) 347-2063 and we’ll come look, camera in hand, and show you exactly what’s going on before we quote a dollar.
Why Bellows Air Duct & Vent Co. of Texas Is Cleburne’s Preferred Duct Repair & Sealing Company
Homeowners in Cleburne call us because we’ve earned a reputation for showing up when we say and leaving the job finished. Wade Kellerman has led this company since its founding in 1984, and the 90-Day Done Right Promise he put in writing still governs every job we run. That means if something isn’t right after we leave, we come back and make it right. No paperwork, no arguing, no charge.
Our technicians are background-checked and uniformed, and they answer to a live person at our office 24 hours a day. Not a voicemail tree, not an app. A real person. When you’re standing in a Cleburne living room with dust pouring out of a register after a storm front rolls through Johnson County, you want to talk to someone who can dispatch help, not leave a message and hope.
We also know the local conditions that break ductwork here. North Texas attic temperatures climb past 130°F in summer, which degrades fiberglass duct liner faster than in cooler climates. The severe-weather corridor that runs through Johnson County forces HVAC systems to run hard ahead of fronts, pulling agricultural dust and humidity into return chases that don’t dry out. And in those older neighborhoods near downtown Cleburne, we’ve seen the same failure mode repeatedly: insulation contractors blew cellulose directly over unsealed duct board, and now that loose insulation migrates into the air stream every time the blower cycles. We fix that. We don’t just patch it and leave.
Our Duct Repair & Sealing Services in Cleburne
Duct Sealing
Leaky ducts are the single biggest efficiency killer we find in Cleburne homes. A typical house loses 20-30% of conditioned air through gaps at joints, boots, and plenum connections. In older Cleburne neighborhoods, especially around West Wardville Street and the post-WWII blocks near downtown, those gaps are often hidden under decades of blown-in insulation. Our Duct Repair & Sealing team starts with a camera inspection to map every leak, then seals accessible joints with professional-grade mastic sealant. We don’t use tape as a permanent fix; tape fails in hot attics. Mastic stays flexible and airtight for years. A full duct sealing job in Cleburne runs $350-$650 for most single-story homes, and the energy savings usually show up on the next electric bill.

Flex Duct Repair
Flex duct is common in Cleburne’s 1970s pier-and-beam homes and in newer attic-run systems on the city’s edges, but it doesn’t last forever. The plastic liner cracks, the insulation compresses, and the sagging sections collect debris at low points. We repaired a sagging flex duct in a 1970s pier-and-beam home on West Wardville Street where attic blow-in insulation had buried the boot connections; the debris load included hay particulates from nearby farmland. After re-securing the flex with mastic sealant and re-wrapping insulation, airflow improved by 30% and the homeowner reported no more dust spikes during summer storms. We also recommended our Dryer Vent Cleaning in Cleburne to complete their home’s airflow maintenance. Flex duct repair in Cleburne typically costs $180-$340 per run, and we can usually complete it in one visit.

Metal Duct Repair
Galvanized metal ductwork still exists in some of Cleburne’s oldest homes, and it can outlast flex duct by decades if properly maintained. The problem we see is rust at seams and disconnected joints where original sealant has hardened and failed. Metal duct repair requires different techniques: we re-seal with mastic, replace rusted sections with matching gauge metal, and sometimes install custom-fabricated transitions. Because metal duct is rigid, access is often the challenge in Cleburne’s low-clearance attics. We carry portable equipment specifically for tight spaces, and we’ll tell you honestly if a section is too deteriorated to save.

Duct Insulation
Even sealed ducts lose efficiency if the insulation is compromised. In Cleburne’s 130°F attics, bare or compressed insulation means your cooled air arrives at the register lukewarm. We see this constantly in homes where previous contractors walked on flex duct during other work, or where rodents have torn insulation in rural-adjacent properties. We re-wrap with formaldehyde-free insulation rated for high-temperature attics, secured with mechanical fasteners that won’t slip. For duct board systems, we sometimes recommend full replacement if the board itself has become brittle, but we’ll show you the camera footage and let you decide.

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 build our trucks with equipment we’d want in our own homes. For duct repair and sealing, that means Rotobrush portable inspection systems for camera work in tight Cleburne attics, Nikro HEPA containment for debris removal, and Honeywell and Aprilaire air quality components when we’re integrating sealing work with filtration upgrades. We stock common flex-duct sizes, mastic, and insulation materials on every truck, so we’re not driving back to a warehouse while your attic hangs open. Most Cleburne repairs are same-day completions because we arrive prepared.
Common Duct Repair & Sealing Problems We See in Cleburne Homes
- Cellulose insulation migration into duct board. In older neighborhoods near downtown Cleburne, insulation contractors blew cellulose directly over unsealed duct surfaces. Now every blower cycle pulls loose fibers through gaps into the air stream. We seal the exterior, clean the interior, and stop the contamination at its source.
- Collapsed flex duct buried under attic insulation. Post-WWII and 1970s homes in 76031 and 76033 often have low-clearance attics where techs can’t even see ductwork without removing blow-in insulation first. We excavate carefully, repair or replace the collapsed section, and restore insulation placement without compressing it.
- Sagging flex-duct boots in newer subdivisions. Edge-of-city slab homes built after 2000 frequently have attic-run flex duct with poorly secured boot connections. Gravity and vibration pull the duct loose over time, creating leaks that blow conditioned air into the attic. We re-secure with mechanical supports and mastic sealant.
- Humidity damage in return-air chases after storms. Johnson County’s severe-weather corridor means homes run HVAC hard ahead of fronts, then lose power or cycle irregularly. Return chases that take in humid outdoor air rarely dry fully, and we’ve found mold growth inside repaired duct sections that weren’t properly sealed against moisture intrusion. We seal against both air and water vapor.
Pricing for Duct Repair & Sealing in Cleburne, TX
We’re not going to quote you a $49 “whole house special” and then find $800 worth of “surprise problems” in your attic. Our pricing is upfront, before we lift a tool.
| Service | Typical Range in Cleburne |
|---|---|
| Mastic duct sealing (accessible joints, single system) | $350-$650 |
| Flex duct repair/replacement (per run) | $180-$340 |
| Metal duct section replacement with custom fabrication | $280-$520 |
| Duct board repair or partial replacement | $320-$580 |
| Full duct insulation re-wrap (per run) | $220-$400 |
What moves you within these ranges? Accessibility is the big one. A duct run in an open attic with plywood decking takes half the time of the same repair buried under two feet of cellulose in a 1950s Cleburne pier-and-beam crawl space. The extent of contamination matters too; agricultural dust and hay particulates that have accumulated for years require more thorough cleaning before we can seal effectively. And the age of the material itself: duct board from the 1960s or 1970s is often too brittle to repair and needs section replacement.
We offer free estimates in Cleburne, and our $50 Off Any Repair Over $250 standing offer applies to duct work. Veterans and seniors receive a permanent 5% discount. Call (866) 347-2063 for an exact quote on your specific system.
We Also Serve Cities Near Cleburne
Our service radius covers all of Johnson County and into southern Tarrant County. We regularly run Cleburne calls alongside work in Keene, Joshua, Burleson, and Crowley. The same technician, same truck, same upfront pricing whether we’re working on a ranch house near Cleburne’s Lake Pat Cleburne or a newer build up toward Burleson. If you’re unsure whether you’re in our service area, call and we’ll tell you straight.
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 - Duct Repair & Sealing in Cleburne
Because the insulation contractor blew cellulose directly over unsealed duct board without sealing the exterior first. This is far more common in Cleburne’s older neighborhoods than in newer suburbs, and every time your blower cycles, it pulls loose fibers through small gaps into your air stream. We seal the exterior duct surfaces with mastic, then clean the interior contamination. Call (866) 347-2063 for a camera inspection and free estimate.
Yes. We carry portable equipment specifically for low-clearance attics, and our technicians are experienced at working in the confined spaces common to post-WWII Cleburne homes. We sometimes need to remove and later replace blow-in insulation to access ductwork, but we do it carefully and restore your attic’s thermal barrier before we leave. Most tight-access repairs in Cleburne are completed in a single visit.
Duct sealing should be inspected every 3-5 years in Cleburne, and sooner if you notice dust spikes, uneven heating or cooling, or rising energy bills. The agricultural dust load from surrounding Johnson County farmland accelerates seal degradation and contaminates systems faster than in purely suburban environments. If your home is in 76031 or 76033 and has never had professional duct inspection, we recommend starting with a camera assessment now.
Yes. Johnson County’s position in an active severe-weather corridor means we regularly repair duct sections where humidity intrusion has caused mold growth or material deterioration, particularly in return-air chases that don’t dry fully after storm events. We seal against both air leakage and moisture vapor, and we’ll show you the camera evidence of what we found. If storm damage is extensive, we’ll give you an honest assessment of repair versus replacement.
Brittle duct board usually needs section replacement rather than repair. The fiberglass resin hardens and cracks over decades, especially in Cleburne’s extreme attic heat, and patches won’t hold. We can replace individual sections with new duct board or transition to flex duct where access allows, and we’ll show you the camera footage so you can see exactly what we’re seeing. Full system replacement is sometimes the better long-term value, and we’ll tell you if that’s the case. Estimates are free; call (866) 347-2063.
Ready to stop losing conditioned air to your attic and breathing agricultural dust every time the blower kicks on? Call Bellows Air Duct & Vent Co. of Texas at (866) 347-2063 for a free estimate on duct repair and sealing in Cleburne. We’ll answer with a live person, schedule you promptly, and show up with camera equipment and the right materials to finish the job in one visit. Wade Kellerman has stood behind every job since 1984, and that 90-Day Done Right Promise still means what it says: if it’s not right, we make it right. No paperwork, no arguing.
Written by Wade Kellerman, Owner at Bellows Air Duct & Vent Co. of Texas, serving Cleburne and Johnson County since 1984.