Trusted Duct Repair & Sealing for Columbus Homeowners
Affordable Duct Repair & Sealing in Columbus, OH typically runs $250–$850 depending on the scope, with most residential jobs completed in a single visit. At Legacy Air Duct Cleaning Columbus, Paul Torres shows up personally as lead technician on your job — not a subcontractor — and we’ve been sealing and repairing duct systems across Franklin County for 8 years. Nearly 1,000 customers reviewed us, and we’re usually able to offer same-day or next-day service when your HVAC system is losing efficiency or your home has uneven temperatures. Call us at (844) 945-2561 for a free, upfront estimate.
We’re not a general handyman service that added ducts to a long menu. We built our entire business around indoor air quality — duct cleaning, dryer vent cleaning, HVAC cleaning, Best Duct Repair & Sealing in Columbus, OH, and air sanitizing — so when we find a collapsed flex run in Blacklick Estates or metal ductwork pulling apart in Grandview Heights, we’ve seen it before and we fix it right. Our Rotobrush and Nikro mechanical agitation systems aren’t consumer-grade shop vacs; they’re the same professional IAQ platforms industrial contractors use. That matters because proper duct sealing requires clean, accessible surfaces and the right mastic or foil tape application — not the duct tape you’ll find at a hardware store.
What Our Duct Repair & Sealing Service Includes
Duct Sealing
Duct sealing closes the gaps, cracks, and disconnected joints that leak conditioned air into your attic, crawl space, or walls before it ever reaches your rooms. In Columbus, we see this problem constantly in homes built during the 1960s–1990s construction booms, where original ductwork was often assembled with minimal sealing standards. Paul Torres tests your system with a pressure differential check, then applies mastic sealant or metal-backed foil tape rated for HVAC temperatures — not the failing cloth duct tape so many homeowners find crumbling away.
Flex Duct Repair
Flex duct — the insulated flexible tubing common in newer Columbus subdivisions and additions — collapses, gets punctured by rodents, or sags at the connections over time. We replace damaged flex runs with properly sized, insulated flex duct, support it every 4–5 feet to prevent sagging, and seal each connection with nylon draw bands and mastic. In Lincoln Village and Whitehall, we’ve found that original flex installed during rapid development in the 2000s is now reaching the end of its reliable lifespan.
Metal Duct Repair
Galvanized steel ductwork in older Columbus homes — think Bexley, Upper Arlington, and the original German Village areas — can corrode at the seams, separate at the drives and cleats, or develop holes from decades of condensation. We re-seam metal ducts, replace rusted sections with matching gauge steel, and apply mastic sealant across every longitudinal and transverse joint. When metal ductwork is beyond practical repair, we’ll tell you honestly and quote a partial replacement rather than chasing leaks indefinitely.
Duct Insulation
Uninsulated or deteriorated duct insulation in unconditioned spaces wastes enormous energy in Columbus’s hot, humid summers and bitter winters. We wrap repaired or new ductwork with fiberglass insulation at the proper R-value for Ohio’s climate zone, then seal the vapor barrier to prevent condensation and mold growth. This is especially critical in homes with ducts running through vented attics — a common configuration in Grove City and Gahanna ranch-style builds.
Mastic Sealant Application
Mastic is a thick, fiber-reinforced paste that remains flexible after curing, making it the professional standard for durable duct sealing. We brush or trowel mastic across every seam, joint, and penetration — including where ducts pass through wall studs or floor joists — at a thickness that won’t crack or shrink. Unlike tape alone, mastic creates a permanent, airtight bond that holds up to the thermal expansion and contraction your Columbus duct system experiences hundreds of times per year.
Air Leak Repair
Air leaks are the hidden tax on your energy bills: the Department of Energy estimates typical homes lose 20–30% of conditioned air to duct leaks. We locate leaks using pressure testing and infrared temperature mapping, then prioritize repairs by severity and accessibility. In Sunbury and Lewis Center, where new construction sometimes prioritizes speed over sealing quality, we’ve found that “new” doesn’t mean “tight” — and we document every repair so you see the before-and-after improvement.
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.
Brands We Service for Duct Repair & Sealing
We’ve worked extensively with Honeywell whole-home air cleaning and zoning systems, often repairing and sealing the ductwork connected to their F100 and F300 media air cleaners. If your Columbus home has a Honeywell bypass or powered humidifier integrated into the return ductwork, we understand how those connections must remain sealed to prevent bypass air from undermining both humidity control and filtration efficiency.
We’ve also serviced hundreds of Aprilaire dehumidifier and ventilation systems, particularly their E-series energy recovery ventilators in tight, energy-efficient homes around Grandview Heights and Upper Arlington. Aprilaire units require precise duct sizing and sealed connections to achieve their rated performance — a 6-inch flex run with a gap at the collar won’t deliver the cubic feet per minute the system was designed for. Whether you have Honeywell, Aprilaire, or any other make integrated with your duct system, we can repair and seal the infrastructure that makes it all work.
Signs You Need Duct Repair & Sealing Right Now
- Rooms that never reach the thermostat setting. If your second-floor bedroom in Bexley stays 8–10 degrees warmer than the main floor every July, the duct run serving that room is likely disconnected, crushed, or leaking into the attic. You’re paying to cool your insulation while your family sweats.
- Dust that returns within days of cleaning. When ducts pull air from a dusty attic or crawl space through gaps in the return side, that particulate bypasses your filter entirely. We see this pattern frequently in 1970s-era Columbus homes where return plenums were sealed with failing tape.
- Unexplained energy bill spikes. A duct system that was marginally functional can cross into serious inefficiency when multiple leaks develop simultaneously. If your summer electric bills jumped 25% or more without a rate increase or thermostat change, your ducts are the prime suspect.
- Whistling or rushing air sounds from walls or ceilings. These noises indicate high-velocity air escaping through a significant gap — often where a flex duct has pulled off a collar, or where a metal seam has opened. The sound is your duct system literally throwing money into the wall cavity.
- Musty or stale odors when the HVAC runs. Leaky return ducts in damp crawl spaces or basements draw in mold spores, soil gases, and pest debris. In Columbus’s clay-heavy soils, crawl spaces stay humid well into October, making this a persistent regional issue we address regularly.
Our Duct Repair & Sealing Process — Step by Step
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System inspection and pressure testing. Paul Torres arrives with a manometer and digital airflow hood to measure static pressure and airflow at each supply and return register. This baseline tells us whether the problem is a single major leak or widespread deterioration — and we share those numbers with you before any work begins.
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Leak identification and mapping. We pressurize the duct system and use smoke pencils or theatrical fog to visualize leak locations, plus infrared imaging to spot temperature anomalies behind drywall or in unconditioned spaces. In Columbus’s older homes with plaster and lath, this non-invasive approach saves unnecessary wall damage.
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Surface preparation and cleaning. Using our Rotobrush mechanical agitation system, we clean the repair zones to remove dust, grease, and degraded old tape. Mastic and modern foil tapes bond poorly to dirty surfaces — this preparation step is why our seals last when quick fixes fail.
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Repair and sealing execution. We replace damaged flex or metal sections, re-support sagging runs, and apply mastic sealant with a brush or trowel at the manufacturer-specified thickness. Critical joints receive both mastic and metal-backed tape for redundant sealing. For metal ductwork, we use drives, cleats, and S-cleats where structural integrity is compromised.
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Post-repair verification. We re-test static pressure and airflow to confirm measurable improvement, then walk you through the results. Our goal is a duct system that delivers the CFM your HVAC equipment was designed to move — because an efficient furnace or air conditioner can’t overcome leaky infrastructure.
How Much Does Duct Repair & Sealing Cost in Columbus?
A typical duct sealing job in Columbus runs $250–$550 for accessible ductwork in a basement or crawl space, while flex duct repair or metal duct replacement in an attic typically falls between $400–$850 depending on linear footage and accessibility. Small, localized repairs — a single disconnected flex run in a Gahanna ranch, for example — might come in under $300, whereas whole-system sealing with insulation wrap in a larger Upper Arlington home can exceed $1,200.
Several factors move the price: where the ducts are located (attic work in August adds complexity), the extent of damage, whether we need to cut drywall or floor decking for access, and whether your system requires cleaning before sealing can be effective. We don’t upsell unnecessary work — if your ducts are clean enough to seal, we’ll tell you. If they’re clogged with construction debris or decades of accumulation, we’ll explain why sealing dirty ducts traps contaminants and reduces airflow.
The best way to avoid overpaying is to get a detailed, itemized estimate that specifies exactly which runs are being sealed or replaced, what materials are used, and how the contractor verifies results. Our estimates are free, include line-item pricing, and come with no obligation. Call (844) 945-2561 to schedule yours — we’ll inspect your system and give you the exact number, not a range designed to get our foot in the door.
Duct Repair & Sealing Near Columbus — Our Service Area
We repair and seal duct systems across Franklin County and into Delaware and Licking counties, with typical response times of same-day to 48 hours depending on season and location. Our regular service area includes Duct Repair & Sealing in Lewis Center, Duct Repair & Sealing in Pataskala, and Duct Repair & Sealing in Sunbury, plus Grandview Heights, Bexley, Upper Arlington, Whitehall, Lincoln Village, Gahanna, Grove City, and Blacklick Estates. Whether you’re in a 1920s brick colonial in Bexley with original galvanized ductwork or a 2015 build in Lewis Center with flex duct that’s failed prematurely, we’ve handled the specific configuration.
Serving Columbus, OH — Our Local Coverage Area
We’re based in the Columbus area and know this community well. Use the map below to find Duct Repair & Sealing near you — if you’re nearby, we can almost certainly help.
Frequently Asked Questions — Duct Repair & Sealing in Columbus
Duct repair and sealing fixes the physical integrity of your duct system — closing leaks, replacing damaged sections, and restoring proper airflow — while duct cleaning removes accumulated dust and debris from inside the ducts. We offer both services because cleaning leaky ducts is temporary at best, and sealing dirty ducts traps contaminants; the two work together for lasting results. Many Columbus homeowners start with our home page to explore our full indoor air quality approach.
Most residential duct repair and sealing jobs in Columbus take 3–6 hours from arrival to final testing, with whole-system sealing in larger homes occasionally extending to a full day. Paul Torres works efficiently but doesn’t rush the verification step — we’d rather spend an extra 30 minutes pressure-testing than leave you with hidden leaks. We’ll give you a time estimate specific to your home when we provide your free quote.
Typical duct sealing in Columbus costs $250–$550 for accessible work, while repairs involving flex duct replacement or metal duct patching range from $400–$850. Whole-system sealing with insulation in larger homes can exceed $1,200. The exact price depends on your home’s duct configuration, accessibility, and whether cleaning is needed first. Call (844) 945-2561 for a free, itemized estimate with no obligation.
Yes — we’ve repaired and sealed ductwork connected to hundreds of Honeywell and Aprilaire air cleaners, humidifiers, and ventilators across Columbus. These integrated systems require particular attention to return duct sealing and proper CFM delivery, which is exactly the expertise 8 years of focused IAQ work provides. We service these brands and all other major makes.
We prioritize calls where the HVAC system is completely non-functional due to duct damage — a collapsed return duct in July or a disconnected supply line in January qualifies as urgent in our book. While we don’t charge emergency premiums, our availability fills fastest during peak heating and cooling seasons. Call (844) 945-2561 and we’ll tell you honestly whether we can reach you today or if first-thing-tomorrow is realistic.
We stand behind our workmanship and will address any seal failure or repair issue attributable to our installation. Specific warranty terms depend on the scope and materials used, which we detail in writing with every estimate. Our 935 verified reviews at a 4.7-star rating reflect how we handle the rare callback — promptly and without argument.
Clear a 3-foot workspace around your furnace, air handler, and any accessible duct runs in the basement or utility closet; move stored items away from crawl space access doors. If you have pets, secure them in a separate room during the work, as we’ll be opening access panels and moving between interior and exterior. We’ll handle everything else, including floor protection and cleanup — you don’t need to pre-clean or pre-inspect anything.
Schedule Your Duct Repair & Sealing Service in Columbus Today
Leaky ducts don’t fix themselves, and every month of delay adds to your energy bills while straining your HVAC equipment. Paul Torres will inspect your system, show you exactly where the problems are, and give you an upfront price before any work begins. Call (844) 945-2561 now for your free estimate — we’re available for same-day and next-day scheduling across Columbus and surrounding communities.
Written by Paul Torres, Owner at Legacy Air Duct Cleaning Columbus, serving Columbus, OH since 2016.