Fast, Reliable Duct Repair & Sealing Across Lebanon
Duct repair and sealing in Lebanon, OH typically costs between $280 and $650 for most residential jobs, with same-day or next-day service available throughout Warren County. We’re Titan Air Duct Cleaning Greater Dayton, and our Duct Repair & Sealing team regularly works the two very different housing stocks that define this market: the tight, retrofitted chases of Lebanon’s 19th-century historic core and the long trunk-and-branch systems in subdivisions that have sprouted across former farmland since the late 1990s. From Broadway’s Queen Annes to the newer builds near the 45036 zip perimeter, we bring Rotobrush and Nikro equipment plus 20 years of hands-on experience to every Lebanon job. Call (866) 834-6947 for a free estimate — your owner is your technician, and Thomas Hernandez personally handles the work.

Why Titan Air Duct Cleaning Greater Dayton Is Lebanon’s Preferred Duct Repair & Sealing Company
Our reputation in Lebanon was built one plaster-wall access cut at a time. Homeowners here aren’t looking for a coupon crew — they’re looking for someone who understands why a 1950s retrofit duct behind original lath behaves differently than a 2005 builder-grade flex run. That’s exactly what we deliver.
Thomas Hernandez, our owner and lead technician, has 20 years in the air duct cleaning trade. He still carries the tools on every job. No dispatchers, no rotating crews, no explaining your home’s quirks to a stranger. When you call (866) 834-6947, you speak to the person who’ll be sealing your ducts.
Our 113 verified reviews averaging 4.7 stars include Lebanon homeowners who’ve watched us navigate spaces that standard equipment simply can’t reach. They mention response time specifically — we’re typically on-site in Lebanon within 24 hours, often same-day for urgent leaks.
We know the local terrain: the Little Miami River corridor that funnels agricultural pollen into duct leaks each spring, the humidity that finds every unsealed joint in July, and the non-standard patchwork metal that retrofitters left behind Mulberry Street decades ago. That knowledge changes how we approach your system.
Our Duct Repair & Sealing Services in Lebanon
Duct Sealing
Lebanon’s split housing market makes duct sealing especially critical. In the historic district around Broadway, we seal 60-year-old metal joints where plaster-wall retrofits created seams that were never properly finished — leaks that force your HVAC to work harder year-round. In newer subdivisions, we seal the gaps where builder-grade installation left fiberglass and drywall dust migrating through your living space. Our sealing process uses mastic compound and metal-backed tape rated for Ohio’s temperature swings, not the cheap foil tape that peels in humid summers.
Mastic Sealant Application
Mastic is our go-to for Lebanon’s legacy metal ducts. This thick, brush-applied sealant fills irregular gaps that tape alone can’t handle — exactly what we need for the non-standard sheet-metal patchwork common in pre-1900 retrofits. On a recent Mulberry Street Queen Anne, we sealed three leaking mastic joints that were forcing the HVAC to cycle 30% more often. The plaster walls and sharp bends made standard flex-line tools useless; we cut custom access panels, applied Abatement Technologies-approved mastic, and restored proper airflow without damaging original finishes.
Metal Duct Repair
Lebanon’s historic homes contain metal ductwork from the 1950s through 1970s that’s simply wearing out — rust at seams, collapsed sections from decades of vibration, and joints that were never properly sealed in the first place. We repair or replace these runs with matching gauge metal, preserving the system’s original routing where possible. In newer Lebanon homes, we address the thinner builder-grade metal that flexes and separates at joints. Our Nikro equipment handles both scenarios without the damage that consumer-grade tools cause to aging metal.
Flex Duct Repair
The suburban subdivisions near Lebanon’s 45036 perimeter rely heavily on flex duct — and it shows. We’ve found crushed runs behind finished basements, disconnected joints in attic spaces, and insulation that’s degraded from Warren County’s humid summers. We repair with proper support spacing and sealed connections that meet current standards, not the sloppy tape jobs that leave your system sucking attic air.
Duct Insulation
Uninsulated or degraded duct insulation is a hidden energy drain in Lebanon homes. In the historic district, retrofit ducts often run through unconditioned spaces with minimal or no insulation. In newer builds, we’ve seen builder-grade insulation compress and fail within five years. We install proper R-value insulation with vapor barriers, sized for Ohio’s climate extremes.
Air Leak Repair
Every duct leak is a pressure leak — your conditioned air escapes, unconditioned air enters, and your system compensates by running longer. In Lebanon’s pollen-heavy environment, those leaks also draw in the agricultural dust and mold spores that the Little Miami River corridor channels through town. We locate leaks with camera inspection and pressure testing, then repair with methods matched to your duct material and access constraints.

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 Lebanon
We work with the equipment and products that serious indoor-air professionals recognize: Rotobrush and Nikro for mechanical cleaning and inspection, Honeywell and Aprilaire for whole-home air quality integration, and Abatement Technologies for sealing and sanitizing compounds. We don’t show up with a shop vac and a brush kit from the hardware store. For Lebanon homeowners, this means we can source proper replacement parts and sealing materials without the delays that send other crews back to Dayton for supplies. When your 1970s metal duct needs a specific gauge patch or your new build’s flex run requires a particular collar fitting, we’ve got it on the truck or can get it fast.
Common Duct Repair & Sealing Problems We See in Lebanon Homes
- Sharp bends and non-standard patchwork in historic retrofits trap debris at joints that standard flex-line wands miss completely. We’ve opened access panels on Broadway homes to find decade-old accumulations that previous “cleanings” never touched — because the equipment literally couldn’t make the turn.
- Builder-grade ducts in 2000s subdivisions still carry drywall and fiberglass dust years after move-in. Poor initial sealing lets this debris migrate through supply registers long after construction ended. Sealing the system properly stops the migration and finally clears the air.
- The Little Miami River corridor channels agricultural pollen and mold spores into duct leaks during spring and fall. For Lebanon allergy sufferers, sealing isn’t a luxury — it’s the difference between manageable seasons and months of indoor misery. We’ve seen families reduce their antihistamine reliance simply by stopping the infiltration.
- Humid summers establish mold in ducts with inadequate return-air capacity. This is especially common in historic-home retrofits where the original system design didn’t account for proper airflow. Sealing leaks and repairing return pathways breaks the moisture cycle that feeds mold growth.
Pricing for Duct Repair & Sealing in Lebanon, OH
Most residential duct sealing jobs in Lebanon run $280–$450 for partial-system work and $480–$650 for whole-home sealing. Metal duct repair typically falls between $320 and $580 depending on access difficulty and material gauge. Mastic sealant application alone — ideal for targeted leak repair in legacy systems — generally ranges from $180 to $340.
What moves you within these ranges? Access is the big variable. Original plaster walls in the historic district take more time than unfinished basement runs in newer homes. The extent of damage matters too — a single separated joint versus multiple rusted sections requiring replacement. System size and whether we need to cut access panels or can reach everything through existing openings.
We don’t guess over the phone. Every Lebanon estimate starts with a hands-on inspection — free, no obligation, and conducted by Thomas Hernandez himself. You’ll know exactly what needs doing and what it costs before any work starts. Call (866) 834-6947 to schedule.
| Service | Typical Range in Lebanon |
|---|---|
| Partial-system duct sealing | $280 – $450 |
| Whole-home duct sealing | $480 – $650 |
| Metal duct repair (per section) | $320 – $580 |
| Mastic sealant application | $180 – $340 |
| Flex duct repair/replacement | $220 – $420 |
| Duct insulation (per run) | $160 – $290 |
We Also Serve Cities Near Lebanon
Our duct repair and sealing work extends throughout Warren County and into neighboring communities. We regularly service Springboro to the north, Mason to the southwest, Carlisle to the east, and Franklin to the southeast — all within our standard response area. The same owner-led service, the same professional-grade equipment, the same local expertise applied to each community’s specific housing stock and conditions.
Serving Lebanon, OH — Our Local Coverage Area
We’re based in the Lebanon 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 Lebanon
Standard flex-line cleaning wands can’t navigate the sharp bends and non-standard sheet-metal patchwork that 1950s–70s retrofitters installed in Lebanon’s pre-1900 homes. We cut custom access panels in original plaster to reach these sections with Rotobrush equipment and camera verification, then seal the joints that standard tools miss entirely. Call (866) 834-6947 — we’ll inspect your specific routing and show you exactly what’s accessible and what isn’t.
Yes, duct sealing stops the migration of construction debris that’s still circulating through poorly sealed builder-grade systems. We seal the supply and return joints that allow drywall and fiberglass dust to bypass your filter, then clean what’s trapped in the system. Most Lebanon homeowners in 2000s-built subdivisions see noticeable improvement within a week. Call (866) 834-6947 for a free inspection and estimate.
Sealing is more important than cleaning alone if you have duct leaks, because the Little Miami River corridor channels agricultural pollen and mold spores directly into your system through those gaps. Cleaning removes what’s already inside; sealing stops new infiltration. For Lebanon allergy sufferers, the combination is what actually works. We can test your system for leaks and show you the pressure readings — call (866) 834-6947.
We cut discrete access panels in non-visible locations — closet ceilings, basement soffits, behind removable trim — then restore the plaster and lath properly after repair. On a Mulberry Street Queen Anne, we sealed 60-year-old metal ducts where plaster-wall retrofits had left sharp bends and unsealed seams, using Rotobrush’s flex-line with a custom camera to locate leaks that standard approaches missed. Every access decision is discussed with you beforehand. Call (866) 834-6947 to walk through your home’s specific layout.
Most Lebanon homeowners see 15–25% reduction in HVAC runtime after proper sealing, especially with the legacy metal systems common in the historic district where decades of vibration have opened joints. The payback period typically falls between 18 and 36 months depending on your current leakage severity and energy rates. We measure before-and-after pressure to document the improvement. Call (866) 834-6947 for a free estimate that includes projected savings.
Ready to stop losing conditioned air and start breathing cleaner? Thomas Hernandez and our team at Titan Air Duct Cleaning Greater Dayton are here to help Lebanon homeowners with honest assessments, professional-grade work, and no middlemen. Whether you’re dealing with century-old retrofit metal or a new build that never got properly sealed, we’ll show you exactly what’s happening in your ducts and what it’ll take to fix it. Call (866) 834-6947 today for your free estimate — we’re typically on-site in Lebanon within 24 hours.
Written by Thomas Hernandez, Owner at Titan Air Duct Cleaning Greater Dayton, serving Lebanon and the Greater Dayton area with 20 years of hands-on experience.