How Much Does Duct Repair & Sealing Cost in Columbus?
Our Duct Repair & Sealing services in Columbus, OH typically cost between $350 and $1,200 for a standard residential job, with most homeowners paying around $500–$750 when a combination of mastic sealing and minor section repairs is involved. If your system only needs Aeroseal injection or basic sealing on accessible joints, you’re often looking at the lower end of that range — major repairs involving flex duct replacement or damaged plenums can push past $1,000. Call (844) 945-2561 for a free estimate specific to your home’s system.
Duct Repair & Sealing Cost Breakdown (2026)
The table below reflects Affordable Duct Repair & Sealing in Columbus, OH pricing ranges we see across Columbus homes in 2026 — from older ranch-styles in Clintonville with deteriorating flex duct to newer builds in Powell or Dublin where improper installation left joints unsealed from day one.
| Service Type | Typical Cost Range | Notes |
|---|---|---|
| Mastic sealant application (accessible joints) | $150 – $350 | Best for visible supply and return joints in basements or crawlspaces |
| Aeroseal injection sealing (whole-system) | $900 – $1,800 | Pressurized sealant reaches leaks inside walls and ceilings; most thorough option |
| Flex duct section replacement (per section) | $150 – $400 | Common in Columbus attics and crawlspaces where flex degrades over 15–20 years |
| Sheet metal duct repair (per section) | $200 – $500 | Includes cutting, fitting, and sealing new metal sections to existing trunk lines |
| Plenum repair or replacement | $300 – $700 | Supply or return plenums near the air handler; labor-intensive access |
| Duct boot & register seal repair | $75 – $200 | Leaky boots at floor or ceiling registers; often overlooked but significant loss point |
| Full duct sealing + cleaning combination | $600 – $1,400 | Most common package; sealing after cleaning ensures contaminants aren’t pushed into fresh gaps |
These ranges hold for most single-family homes in Columbus — typically 1,400 to 2,800 sq ft with a forced-air system. What moves the needle on your final number most is how accessible your duct system is, how many linear feet of ductwork need attention, and whether the leakage is in open basement runs or buried inside finished walls. Homes in Bexley and Upper Arlington with fully finished basements cost more to service than those with open utility spaces, simply because access takes longer. We walk through all of that during the free estimate, so you’re never guessing.
What Affects Duct Repair & Sealing Pricing in Columbus
- Duct material and age: Flex duct installed in the 1990s and early 2000s — very common in Columbus suburbs like Westerville and Grove City — degrades and collapses at connection points, requiring full section replacement rather than simple sealing. Older sheet metal trunk-and-branch systems are more durable but often have decades of failed foil tape at every joint.
- System accessibility: A ranch home in Hilliard with an open basement and exposed ductwork takes a fraction of the labor time of a two-story colonial in New Albany where supply runs travel through finished ceilings. Tight attic spaces in older Clintonville bungalows can add 1–2 hours of labor per visit.
- Extent of leakage: We use pressure diagnostics to measure leakage rate before we touch anything. A system losing 15–20% of conditioned air through gaps — which is surprisingly common in Columbus homes over 20 years old — requires substantially more sealant and repair work than one with isolated joint failures.
- Columbus climate and seasonal factors: Central Ohio’s swing from humid summers to sub-zero January wind chills accelerates duct joint failure, especially in unconditioned attic spaces. Homes in northern Columbus zip codes where attic temps can hit 130°F in July see flex duct connections pull apart faster than anywhere in the metro. That seasonal stress means more repair scope than you’d see in a milder climate.
- Sealing method chosen: Mastic and foil tape applied by hand is the most cost-effective approach for accessible leaks. Aeroseal pressurized injection costs more upfront but reaches every leak point in the system without tearing into walls — making it the right call when significant leakage is happening inside finished spaces.
- Combination with duct cleaning: When a duct system is visibly dirty, we recommend sealing after cleaning — sealing over contaminated ductwork locks debris in place and can reduce airflow further. Scheduling both services together is more efficient and typically costs less than two separate visits. Our Duct Repair & Sealing in Columbus page walks through how we sequence the process.
Signs You’re Paying Too Much on Energy Bills Because of Duct Leaks
Most Columbus homeowners don’t call us about duct leaks directly — they call because something else tipped them off. If any of these sound familiar, leaking or damaged ductwork is a likely cause worth investigating before your next HVAC service bill arrives.
- Rooms that never reach the thermostat temperature, especially upstairs bedrooms or rooms over garages
- Visible dust buildup on registers and grilles that returns within days of cleaning
- AEP Ohio or Columbia Gas bills that spiked without a clear usage reason
- A musty or stale smell when the system kicks on — often a sign of conditioned air pulling from unconditioned attic or crawlspace
- An HVAC technician who mentioned “duct issues” or “pressure imbalance” during a recent tune-up
- A new home purchase where no one can tell you when the ducts were last inspected
In Worthington and Reynoldsburg, we regularly see homes where 25–30% of conditioned air is escaping through failed connections before it ever reaches the living space. That’s not just an indoor air quality problem — it’s a direct hit on your monthly utility costs. Fixing it pays back faster than most homeowners expect.
How to Save on Duct Repair & Sealing
There’s no shortcut that replaces proper diagnosis, but there are smart decisions that keep your total cost down without sacrificing results.
- Get the free estimate first — always. Paul Torres can often identify the primary leak points and repair scope during an assessment without committing you to a full Aeroseal job when spot mastic sealing will do the job. Call (844) 945-2561 to schedule a no-cost estimate for your Columbus home.
- Bundle duct cleaning and sealing. If your system is due for cleaning (typically every 3–5 years, or after a renovation), scheduling both services in one visit eliminates a second trip charge and ensures the work is sequenced correctly — clean first, seal second.
- Address it before HVAC replacement. We see it often: a homeowner in Gahanna invests in a new high-efficiency furnace or heat pump, then wonders why their bills didn’t drop. A leaking duct system wastes the efficiency gains of any new equipment. Sealing first — or at minimum before — a new unit is installed maximizes your return on both investments.
- Don’t patch with foil tape from a hardware store. Standard foil tape isn’t UL 181-rated and fails within a few years, especially in Columbus attic environments. Mastic sealant or UL 181-approved tape applied correctly lasts the life of the duct system. Doing it twice costs more than doing it right once.
- Check for utility rebates. AEP Ohio and Columbia Gas of Ohio periodically offer rebates for verified duct sealing as part of their energy-efficiency programs. We can help you document the work for rebate submissions — ask about this when you call.
FAQs — Duct Repair & Sealing Cost in Columbus
How much does duct sealing cost in Columbus, OH?
Duct Sealing Cost in Columbus, OH ranges from $150–$1,800 depending on the method and scope. Spot mastic sealing on accessible joints typically runs $150–$350. A full Aeroseal pressurized injection job — which seals the entire system including leaks inside walls and finished ceilings — costs $900–$1,800 for a standard Columbus home. Most homeowners doing a combination of accessible sealing and minor repairs land in the $400–$750 range. Call (844) 945-2561 for a free estimate tailored to your system.
Is Aeroseal worth the cost for a Columbus home?
Aeroseal is worth the investment when a significant portion of your duct leakage is happening inside finished walls or ceiling cavities — areas you simply can’t reach by hand. For Columbus homes built in the 1980s and 1990s with supply runs through finished floors and walls, Aeroseal is often the only method that seals the system completely. If your leaks are mostly in an accessible open basement or crawlspace, mastic sealant applied manually will likely do the job at a lower cost. A pressure diagnostic before any work begins tells you which approach makes sense. Call (844) 945-2561 and we’ll walk through it with you.
How long does duct repair and sealing take?
Most residential duct repair and sealing jobs in Columbus take 2–5 hours depending on system size and access. A focused spot-sealing session on an accessible basement system can be completed in 2 hours. A full Aeroseal injection on a larger two-story home, combined with prep and post-verification testing, typically runs 4–6 hours. When sealing is combined with a full duct cleaning, plan for a 4–7 hour visit for a complete service on a standard Columbus-area home.
Can I seal my ducts myself to save money?
You can apply mastic sealant to visible, accessible joints yourself, and for minor surface leaks on open basement ductwork, it’s a reasonable DIY task if you use the correct UL 181-approved materials and follow manufacturer application guidelines. What you can’t do yourself is measure system leakage accurately, diagnose leaks inside finished cavities, or apply pressurized Aeroseal injection — those require equipment and training. More importantly, incorrect sealing can restrict airflow or trap contaminants. For anything beyond a handful of accessible joints, professional service pays for itself in accuracy and longevity. Call (844) 945-2561 to discuss what level of service your system actually needs.
Does duct sealing actually lower energy bills?
Yes — the U.S. Department of Energy estimates that leaky ducts can account for 20–30% of conditioned air loss in a typical home, and Columbus homes with aging flex duct systems regularly test at the higher end of that range. Sealing a system with significant leakage typically reduces heating and cooling costs by 10–20% annually, depending on the severity of the leaks and how efficiently the system runs post-repair. For a Columbus home spending $200/month on heating and cooling, that’s a realistic $240–$480 per year in savings — often recovering the cost of sealing within the first one to two utility seasons. Call (844) 945-2561 for a free estimate and we can give you a realistic picture of what your specific system’s leakage means for your energy spend.
Why Columbus Homeowners Choose Legacy Air Duct Cleaning
We’ve been doing one thing in Columbus for 8 years: ducts, air quality, and the systems connected to them. Not as a sideline to general HVAC service — as the core of what we do every single day. That focus shows up in the details: Paul Torres personally serves as lead technician on every job, so the most experienced person in the company is the one assessing your system and doing the work. There’s no rotating crew of subcontractors, no surprise faces at your door.
We run professional-grade Rotobrush and Nikro mechanical systems — the same equipment used by industrial IAQ contractors — and we work with trusted air quality brands including Honeywell, Aprilaire, Abatement Technologies, and Guardsman when air quality enhancement is part of the solution. Nearly 1,000 Columbus homeowners have left us reviews averaging 4.7 stars, not because we’re the cheapest option in the market, but because we show up prepared, explain what we find, and do the work correctly.
If you’re researching duct repair and sealing, start with our home page to see the full range of services we offer — from cleaning and sanitizing to dryer vent service and air quality solutions — all handled by a single company that knows your system end to end.
Ready for a Free Duct Repair & Sealing Estimate in Columbus?
If your Columbus home has rooms that don’t heat or cool evenly, dust that reappears faster than it should, or energy bills that don’t match your usage, your duct system is worth a serious look. Paul Torres and the Legacy Air Duct Cleaning team serve Duct Repair & Sealing Near Me in Columbus, OH and the surrounding metro — from Worthington and Westerville to Hilliard, Grove City, and Gahanna — and we’ll give you a straight assessment of what’s actually happening in your system before recommending any work.
Call (844) 945-2561 to schedule your free estimate. No pressure, no upsell — just a clear picture of what your ductwork needs and what it’ll cost to fix it right.
Written by Paul Torres, Owner at Legacy Air Duct Cleaning Columbus, serving Columbus, OH since 2017.
Pricing reflects the Columbus market as of 2026. Legacy Air Duct Cleaning Columbus offers free estimates — call (844) 945-2561.