Fast, Reliable Duct Repair & Sealing Across Columbus
Duct repair and sealing in Columbus typically costs $280-$650 for most residential jobs, with same-day service available when you call before noon. We’re Bellows Air Duct & Vent Co., and our Duct Repair & Sealing team has been driving out to Columbus from our Los Angeles headquarters for over 42 years - though we’ve built deep local knowledge of Central Ohio’s unique housing stock along the way. Call (844) 685-6342 and you’ll reach a live person, 24 hours a day. We’ll give you an upfront price before any work starts, and we back every job with our 90-Day Done Right Promise in writing.
Columbus isn’t like other Midwest markets. The city sits in the Scioto River valley where July dew points regularly exceed 65°F, then seals tight for six months of forced-air heating. That cycle - summer moisture infiltration followed by winter recirculation - creates conditions we don’t see in drier climates. In neighborhoods like Clintonville, German Village, and Italian Village, we’re working with 1910s-1950s homes that originally ran gravity-feed coal furnaces later converted to gas forced-air, often keeping the original sheet-metal ductwork in place. Those systems carry 60-plus years of accumulated debris, deteriorating asbestos duct-wrap from mid-century insulation, and compacted fiberglass from later retrofits. A technician who treats that like standard suburban flex-duct will miss the real problem.
Why Bellows Air Duct & Vent Co. Is Columbus’s Preferred Duct Repair & Sealing Company
We’ve earned our reputation in Columbus by showing up when we say we will and doing what we promised - no paperwork, no arguing if something needs adjustment. Our 90-Day Done Right Promise means if the work isn’t right, we return at no charge. That’s been our policy since 1984, and it’s stamped on every invoice.
Our technicians are background-checked and uniformed, and they carry equipment from Rotobrush and Abatement Technologies - the same brands serious HVAC contractors specify. Most jobs are completed in a single visit. When you call (844) 685-6342, a live person answers, not a voicemail tree or app.
We know the local conditions that matter. Columbus’s position downwind of large-scale agricultural operations elevates mold spore and grain-dust loads entering HVAC intakes during spring and fall harvest seasons. We’ve scoped ducts in Clintonville bungalows where the trunk line runs through an unheated crawlspace, and in Italian Village row houses where supply runs are buried in interior wall cavities. That familiarity means we quote accurately and finish completely - no surprise return trips, no hidden costs.
Our Duct Repair & Sealing Services in Columbus
Duct Sealing with Mastic Sealant
Mastic sealant is our preferred method for most Columbus homes with metal ductwork, especially the converted-gravity systems common in Clintonville and the Near East Side. Unlike tape, which degrades in high humidity, mastic forms a permanent flexible bond that withstands the Scioto River valley’s moisture cycles. We apply it with brushes and specialized tools at every joint, seam, and penetration. In German Village, where many 19th-century brick homes have supply runs routed through interior wall cavities and subfloor joist bays, we use flexible-shaft contact tools to reach buried runs that standard truck-mount rigs can’t touch. A technician who doesn’t scope the routing before quoting will underbid and underperform every time.
Flex Duct Repair
Flex duct is common in Columbus’s postwar Cape Cods and in student-rental conversions near the OSU campus in 43210, where HVAC systems often go unmaintained across multiple tenant cycles. We replace crushed, torn, or rodent-damaged flex duct with properly sized runs, sealed at both ends with mastic and mechanical fasteners. The dense student-rental market around Ohio State produces heavily loaded ducts with matted debris - we camera-inspect before and after to document the actual condition, not just make a claim.
Metal Duct Repair
Original sheet-metal ductwork from the coal-furnace era is worth preserving when it’s structurally sound, but it needs specialized attention. In Columbus’s 1910-1955 housing stock - the brick craftsman bungalows in Clintonville, the Victorian row houses in Italian Village - we see rusted sections, separated joints, and failed supports. We fabricate custom patch pieces and replacement sections to match non-standard trunk sizing, then seal with mastic rated for the contamination profile: coal particulate residue, deteriorating asbestos wrap, and compacted fiberglass. This isn’t suburban new construction. The materials and methods have to match the house.
Duct Insulation
Uninsulated or poorly insulated ductwork in unheated crawlspaces and attics wastes significant energy in Columbus’s long heating season. We install new fiberglass duct wrap or rigid insulation board, properly sealed and vapor-barriered, using products from Aprilaire and other professional-grade manufacturers. In Clintonville bungalows with crawlspace trunks, this is often the difference between comfortable rooms and perpetual cold spots. We also handle safe removal of deteriorating asbestos duct-wrap from mid-century retrofits, following proper containment procedures - this is not a homeowner job, and it’s not a task for a contractor who doesn’t know the local regulatory requirements.
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 Columbus
We specify equipment from Rotobrush, Abatement Technologies, and Aprilaire - brands that HVAC professionals choose when the job matters. Our Rotobrush flexible-shaft tools let us access interior-wall duct runs in German Village and Italian Village that rigid truck-mount systems simply cannot reach. We stock mastic sealants, insulation materials, and replacement duct components sized for the non-standard trunk dimensions common in Columbus’s older housing stock. That means faster turnaround and fewer return trips. When we quote a job, we’re quoting from experience with the actual materials the house requires - not a generic estimate that changes once we see what’s there.
Common Duct Repair & Sealing Problems We See in Columbus Homes
- Failed sealing from moisture-cycling damage. Columbus’s humid summers and tight winter heating season cause standard duct tape and inferior sealants to fail repeatedly. We see this in Clintonville and Upper Arlington homes where previous repairs lasted one season. Mastic sealant rated for high-humidity environments is the only lasting solution.
- Blocked or collapsed runs in converted-gravity systems. Decades of loose fiberglass retrofit insulation settle and compact in 1950s-era ducts, especially in Italian Village and Olde Towne East row houses. On a recent job in Italian Village, we sealed a 1950s converted coal furnace duct system where decades of loose fiberglass retrofit insulation had settled and blocked a main trunk. Using flexible-shaft contact tools from our Rotobrush kit, we accessed the buried run through a subfloor joist bay and applied mastic sealant at every joint, restoring full airflow while avoiding any asbestos disturbance.
- Asbestos duct-wrap deterioration in pre-1980 homes. Mid-century asbestos insulation crumbles and releases fibers into airflow. We encounter this regularly in Clintonville and German Village. Safe handling requires containment procedures and specialized removal - not standard brush cleaning or mastic application over the damaged material.
- Poor adhesion from contaminated surfaces. Columbus’s unique debris mix - coal particulate, agricultural grain dust, and mold spores from humid valley summers - prevents standard sealants from bonding properly. We clean and prep surfaces with methods matched to the actual contamination before applying sealant. Skip this step, and re-leaks follow within months.
Pricing for Duct Repair & Sealing in Columbus, OH
Most residential duct repair and sealing jobs in Columbus fall between $280 and $650. Here’s how typical work breaks down:
- Mastic sealant application for accessible metal ductwork: $280-$420
- Flex duct replacement (per run): $180-$340
- Metal duct repair with custom fabrication: $340-$580
- Duct insulation replacement (per trunk section): $220-$450
- Asbestos duct-wrap removal with containment: $450-$850
Factors that affect your specific price: accessibility (crawlspace and interior-wall runs take longer), extent of contamination requiring pre-cleaning, whether custom metal fabrication is needed for non-standard sizing, and asbestos handling requirements. We disclose the full price before lifting a single tool - the number on the phone is the number on the invoice. Call (844) 685-6342 for a free estimate. We also offer $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Columbus
Our Duct Repair & Sealing in Columbus coverage extends to Grandview Heights, Upper Arlington, Bexley, and Whitehall - the same day, the same standards, the same upfront pricing. Whether you’re in a 1920s bungalow near Grandview Avenue or a postwar ranch off East Broad in Whitehall, we scope the job properly and quote it honestly.
Serving Columbus, OH - Our Local Coverage Area
We’re based in the Columbus 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 Columbus
Original gravity-feed coal furnaces used larger, slower airflow ducts than modern forced-air systems, and when those were converted to gas in the 1940s-1960s, contractors often adapted rather than replaced the trunk lines. In Columbus neighborhoods like Clintonville and the Near East Side, that means 8-inch by 20-inch or 10-inch by 24-inch trunks that don’t match today’s standard 6-inch round or rectangular stock. We fabricate custom patch and transition pieces on-site. Call (844) 685-6342 and we’ll measure what you have - estimates are free.
Summertime moisture infiltration into unconditioned duct spaces degrades standard tapes and inferior mastics within one to two seasons in Columbus. We specify high-humidity-rated mastic sealants that remain flexible and bonded through repeated wet-dry cycles. The same sealant that holds in Arizona won’t last here. If your previous repair failed after a single summer, that’s likely why. Call (844) 685-6342 for an inspection - we’ll show you the difference on camera.
Interior duct repair and sealing typically does not require a historic district permit in German Village, but any work that modifies exterior walls, chimneys, or visible architectural features may. We coordinate with Columbus’s Historic Resources Commission when the scope involves exterior penetrations or structural modifications. For standard sealing and interior repairs, we proceed with our normal containment and documentation procedures. Unsure where your job falls? Call (844) 685-6342 and we’ll walk through it - estimates are free.
Look for white or gray fibrous blanket insulation, often 1-2 inches thick, wrapped around metal ducts with metal banding or wire - common in Columbus homes built 1945-1975, especially in Clintonville and Olde Towne East. If the material is crumbly, damaged, or releasing visible fibers, stop work immediately and call us. We handle asbestos duct-wrap removal with proper containment, negative air pressure, and disposal procedures. Never disturb suspected asbestos yourself - the health risk is real, and Columbus’s older neighborhoods have plenty of it. Call (844) 685-6342 for safe evaluation.
Yes - this is routine work for us in Clintonville, where many 1920s bungalows have main trunk lines running through dirt or stone crawlspaces beneath the first floor. We access the space, inspect with camera, clean and prep the metal surfaces, then apply mastic sealant at every joint and seam. We also recommend adding or replacing insulation to prevent condensation and heat loss during Columbus’s long heating season. Most crawlspace jobs are completed in a single visit. Call (844) 685-6342 for a free estimate.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Columbus since 1984.