Fast, Reliable Duct Repair & Sealing Across Columbus
Duct repair and sealing in Columbus typically costs $280–$650 for most residential jobs, with flex duct repairs running $180–$340 per section and full mastic sealing of an older rigid system reaching $500–$900. We’re usually on-site within a day across Franklin County. Call (844) 945-2561 for a free estimate.
We’ve been working Columbus homes for eight years, and there’s no duct problem in this city we haven’t handled. From the 1950s ranches in Hilltop with their original gravity-flow trunk lines to the flex-duct subdivisions that exploded across Hilliard and Dublin in the 2000s, Columbus presents a split housing stock that demands different repair approaches. Paul Torres, our owner, shows up personally as lead technician on your job — not a rotating subcontractor crew. That’s how we’ve earned 935 verified reviews at a 4.7-star rating. If your energy bills are climbing, rooms aren’t heating evenly, or you’re catching dust plumes from vents, your ductwork is likely leaking conditioned air into attics and crawlspaces. Our Duct Repair & Sealing team handles everything from spot repairs to full-system sealing.
Why Legacy Air Duct Cleaning Columbus Is Columbus’s Preferred Duct Repair & Sealing Company
Nearly 1,000 customers reviewed us because we solve problems that generalist HVAC companies miss. Columbus isn’t a one-size-fits-all duct market. The older neighborhoods near I-70 and I-270 have rigid metal systems from the coal-conversion era, while the outer-ring suburbs built during the city’s 1990–2010 population surge rely on flexible ductwork that’s now hitting its failure window. We know both.
Paul Torres serves as lead technician on every project. That means the person with eight years of specialized air duct experience — not a trainee with a weekend certification — is the one crawling through your attic, identifying leak points, and sealing joints. We’ve built our reputation on this accountability.
Our response time to Columbus neighborhoods averages same-day or next-day. We’re not routing crews from Cincinnati or dispatching from a national call center. We’re local, and our schedule reflects that.
The proof is in the review volume. A 4.7-star rating across 935 verified reviews in a single specialty — indoor air quality — shows consistency that franchise operations with scattered service lines rarely match.
Our Duct Repair & Sealing Services in Columbus
Duct Sealing with Mastic Sealant
Mastic sealant is our go-to for stopping air leaks at joints, seams, and connections — but the application differs dramatically across Columbus’s housing stock. In Hilliard and Grove City flex-duct homes, we’ve found DIY mastic jobs that homeowners applied after watching online tutorials. The problem: attic temperature swings in central Ohio range from below 20°F in January to above 140°F in July. Cheap latex-based mastic cracks within two seasons. We use fiberglass-reinforced, UL 181-rated mastic rated for thermal cycling, applied to clean, mechanically secured joints. In a Dublin two-story from 2004, we recently sealed 34 feet of flex-duct trunk connections that were losing an estimated 22% of conditioned air into the attic. The homeowner’s summer electric bill dropped 18% the following month.
Flex Duct Repair
Flex duct repair is our most frequent call from the 1990s–2010s suburban ring — Hilliard, Dublin, New Albany, Grove City, Pickerington. Columbus has been one of the fastest-growing large cities in the Midwest since 1990, producing vast rings of builder-grade tract homes where flexible ductwork was installed and never cleaned post-construction. Unlike older Rust Belt neighbors like Cleveland or Dayton, Columbus’s dominant housing stock is 1990s–2010s flex-duct systems run through hot, unconditioned attic spaces — these sag, kink, and trap drywall dust and insulation fibers from original construction that circulates until a first professional cleaning. We replace crushed or torn sections with insulated flex duct (R-6 or R-8 depending on attic exposure), support it with proper strapping every 4 feet to prevent future sagging, and seal connections with professional-grade clamps and mastic. A typical flex duct repair in Columbus runs $180–$340 per section.
Metal Duct Repair
Metal duct repair in Columbus means working with history. In a Hilltop ranch from the 1950s, we found the original gravity-flow trunk lines — oversized rectangular ducts from the coal era — grafted onto a 1970s forced-air conversion. Decades of compacted particulate required extended manual agitation with a Rotobrush to seal leaks and restore airflow. These older systems in Linden, Hilltop, and the South Side often leak at seams where incompatible sheet-metal patchwork was applied during gravity-to-forced-air conversions. We don’t just slap tape on these. We mechanically re-seam where possible, install custom-fabricated transition pieces where original trunks are too oversized for modern airflow, and apply reinforced mastic. The goal is preserving the durable metal infrastructure while making it compatible with your current HVAC system.
Duct Insulation
Duct insulation isn’t optional in Columbus’s climate — it’s a performance necessity. July dew points in central Ohio regularly hit the upper 60s°F, and flex ducts running through 140°F attics create condensation zones that promote mold colonization near supply registers. We install closed-cell foam insulation wraps or replace uninsulated flex with pre-insulated R-8 product. In winter, poorly insulated metal trunks in unconditioned basements lose heat before it reaches your bedrooms. A typical duct insulation job in Columbus runs $450–$780 depending on linear footage and attic accessibility.
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 work with professional-grade equipment and components from Rotobrush, Nikro, Honeywell, and Aprilaire — the same platforms used by industrial IAQ contractors, not consumer-grade vacuums. For Columbus customers, this means we stock compatible parts locally and don’t wait on drop-shipping when your system needs a repair. Our Rotobrush and Nikro mechanical agitation systems handle everything from delicate flex-duct interiors to century-old metal trunks with packed debris. When we recommend a component — whether it’s a Honeywell media filter housing for your return plenum or Aprilaire humidity control integrated with your sealed duct system — it’s because we’ve installed it in Columbus homes and tracked the results.
Common Duct Repair & Sealing Problems We See in Columbus Homes
- Cracked DIY mastic in Hilliard and Grove City attics. Homeowners seal visible joints with hardware-store mastic, but central Ohio’s temperature swings — from sub-zero winter nights to 140°F attic peaks — cause thermal expansion that cracks inadequate applications within two seasons. We remove the failed material and apply reinforced, rated product.
- Negative pressure imbalances from overzealous sealing of oversized trunk lines. In Columbus’s older stock — particularly Linden and Hilltop — technicians without experience in gravity-conversion systems seal every opening they find, creating airflow restrictions that strain blower motors and reduce efficiency. We test static pressure before and after sealing.
- Mold at flex-duct supply registers in summer. Columbus’s humidity promotes condensation where cold supply air meets warm attic temperatures. We find this in Dublin and New Albany homes with under-insulated flex runs. The fix is proper insulation and, where needed, register box sealing — not just surface cleaning.
- Disconnected flex-duct sections in post-1990 subdivisions. Builder-grade installation often relied on single zip ties and minimal support strapping. After 20–30 years of thermal cycling, connections separate completely. We find this blowing conditioned air directly into attics in Hilliard and Pickerington, with homeowners unaware until energy bills spike.
Pricing for Duct Repair & Sealing in Columbus, OH
Here’s what duct repair and sealing costs in Columbus’s market:
| Service | Typical Range |
|---|---|
| Flex duct repair (per section) | $180 – $340 |
| Mastic sealing (partial system) | $280 – $550 |
| Mastic sealing (full rigid system) | $500 – $900 |
| Duct insulation (per linear foot) | $8 – $14 |
| Metal duct repair with custom fabrication | $320 – $680 |
| Full system assessment + sealing | $450 – $850 |
What moves you within these ranges? Attic accessibility, extent of damage, whether we’re working with original gravity-conversion hardware or standard flex-duct, and whether mold remediation is needed before sealing. We don’t quote over email without seeing your system — but we don’t charge to look, either. Call (844) 945-2561 for a free, on-site estimate with exact pricing.
We Also Serve Cities Near Columbus
Our service radius covers the full Columbus metro, including Grandview Heights, Upper Arlington, Bexley, and Whitehall. Whether you’re in a 1920s Bexley colonial with original ductwork or a Whitehall ranch needing flex-duct repair, Paul Torres handles the job personally. Same scheduling, same equipment, same review-backed accountability.
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
Columbus’s combination of hot, humid summers and rapid suburban growth created a unique problem: most flex-duct homes here were built 1990–2010 with builder-grade materials, run through unconditioned attics that hit 140°F, and rarely received post-construction cleaning. The trapped drywall dust and insulation fibers accelerate deterioration, while thermal cycling hardens the plastic liner. In cooler, slower-growth markets, flex duct often lasts longer simply because it wasn’t stressed from day one. Call (844) 945-2561 for an assessment — estimates are free.
Yes, but only with proper preparation and realistic expectations. Those oversized rectangular trunk lines from the coal-conversion era have decades of compacted particulate and often incompatible patchwork at seams. We clean with mechanical agitation first, then apply fiberglass-reinforced mastic to mechanically sound joints. Some sections may need custom-fabricated transitions rather than sealing alone. A typical mastic sealing job for this vintage system in Columbus runs $500–$900. Call (844) 945-2561 for an exact quote — estimates are free.
Proper flex duct repair shows three signs: the new section is fully supported with strapping every 4 feet (no sagging or kinking), all connections are sealed with both mechanical clamps and mastic (not just tape), and the insulation rating matches or exceeds your climate zone (R-6 minimum, R-8 preferred for Columbus attics). We test with a smoke pencil at connections and verify airflow balance at registers before we leave. A typical flex duct repair in Dublin runs $180–$340 per section. Call (844) 945-2561 for an exact quote — estimates are free.
Yes. Columbus’s July dew points in the upper 60s°F create condensation on cold supply ducts in hot attics, which leads to mold and reduced efficiency. In winter, uninsulated ducts in unconditioned spaces lose heat before it reaches your rooms. We consider duct insulation standard for any flex-duct system in a Columbus attic, and often recommend it for basement metal trunks in older homes. Typical duct insulation in Columbus runs $450–$780. Call (844) 945-2561 for an exact quote — estimates are free.
Most New Albany flex-duct homes built 1995–2010 need targeted repair and sealing, not full replacement. We replace damaged sections, re-support sagging runs, and seal connections — typically 60–70% less cost than full replacement. Full replacement becomes necessary only when the majority of runs are brittle, collapsed, or contaminated with mold. We assess honestly; our 935 reviews reflect that. A typical repair-and-seal scope in New Albany runs $450–$850 versus $2,500–$4,500 for full replacement. Call (844) 945-2561 for an exact quote — estimates are free.
Ready to stop losing conditioned air to your attic? Paul Torres will assess your Columbus home’s ductwork personally, explain what needs repair versus what doesn’t, and give you upfront pricing before any work begins. No pressure, no surprises — just eight years of specialized experience applied to your specific system. Call (844) 945-2561 today for your free estimate.
Written by Paul Torres, Owner at Legacy Air Duct Cleaning Columbus, serving Columbus since 2016.