Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
See the difference
Before
After
Before
After
Before
AfterHow Much Does Duct Repair & Sealing Cost in Columbia?
Duct repair and sealing in Columbia typically runs $350 to $1,200 for most homes, with small single-joint fixes at the low end and whole-system sealing on larger houses at the top. A straightforward seal-and-tape job on accessible attic or basement ductwork commonly lands around $450 to $650, while replacing failed flex runs or sealing a full trunk-and-branch system starts near $900. These are estimated ranges for the Columbia market in 2026, and the written estimate sets your final price.
If you’ve noticed higher energy bills, rooms that never quite heat or cool, or dust settling fast after a cleaning, leaking ducts are usually part of the answer. Sealing them is one of the few home repairs that pays back in comfort and efficiency at the same time. We connect Columbia homeowners with experienced technicians who diagnose the actual leak points rather than guessing. Call (866) 643-6070 for a free estimate. We answer 24/7, with fast dispatch from 7am to 7pm.
Key takeaways:
- Most Columbia duct repair and sealing jobs fall between $350 and $1,200.
- Access matters more than duct length – a sealed crawlspace or finished basement changes the labor cost.
- Sealing alone won’t fix a crushed or disconnected run; that needs repair first.
- Free estimates, upfront pricing, and work that addresses the leak at its source.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s how the individual pieces of a duct job price out in Columbia. Most homes need a combination of two or three of these line items rather than just one.
| Service item | Typical estimated range |
|---|---|
| Sealing accessible joints and seams (mastic and mesh tape) | $350 – $650 |
| Sealing a full trunk-and-branch system | $650 – $1,200 |
| Replacing a failed flex duct run | $250 – $500 per run |
| Reconnecting a disconnected duct at the boot or plenum | $200 – $450 |
| Repairing crushed or kinked rigid ductwork | $300 – $700 |
| Rebuilding a damaged plenum connection | $400 – $900 |
| Register and boot sealing (per register) | $25 – $60 |
| Duct cleaning combined with repair and sealing | $700 – $1,600 |
| Duct insulation repair or replacement in unconditioned space | $300 – $800 |
A few things push the number up. Ducts buried under blown insulation, run through tight chases, or routed above a finished ceiling take longer to reach and seal properly, and labor is most of the bill. Homes with multiple zones or two separate systems cost more because there’s simply more duct to seal. On the other side, an open, accessible attic or basement keeps the price toward the low end. If your ducts have never been cleaned, we usually recommend combining air duct cleaning with the repair so the sealing isn’t locking contamination in place. We use Rotobrush and Nikro equipment for cleaning and Abatement Technologies filtration for containment, because sealing a dirty system just traps what’s already there.
What Affects Duct Repair & Sealing Pricing in Columbia
- Duct location and access. Columbia’s housing stock includes a lot of two-story colonials and townhomes with ductwork in unconditioned attics and between floors. Attic runs are usually easier to reach than chases buried behind drywall, and that difference shows up directly in the labor line.
- How many leaks actually exist. A single disconnected boot is a small job. A system where the plenum, trunk, and half the branch runs have separated is a half-day or full-day project. A proper inspection tells you which one you have before any price is quoted.
- The season and humidity swings. Columbia summers are humid and winters swing hard between mild and freezing. That cycle works on mastic, tape, and flex duct over time, and ducts in unconditioned space take the worst of it. We see more failed seals on attic runs than on basement runs for exactly this reason.
- Duct material. Flex duct is quick to replace but easy to crush and kink. Rigid metal lasts longer but takes more labor to repair properly. Older homes with original rigid ductwork sometimes need section replacement rather than patching.
- Whether cleaning is needed first. Sealing over a contaminated system is a mistake. If the ducts haven’t been cleaned in years, folding cleaning into the repair visit usually costs less than booking the two separately.
- System size and zones. A single-system ranch is one price. A larger home with two air handlers and separate zones means roughly double the duct to seal and roughly double the labor.
For a closer look at how we handle the Columbia market and what a visit involves, that page covers the local picture in more detail.
How to Save on Duct Repair & Sealing
The biggest savings come from catching leaks early, before they turn into disconnected runs and crushed sections that cost real money to rebuild.
- Bundle cleaning with repair. If you’re already booking duct cleaning, adding sealing to the same visit avoids a second trip and usually costs less than scheduling both separately.
- Get the whole system inspected, not just the problem room. A leak in one room often means leaks elsewhere. Fixing them in one visit is cheaper than three separate callouts.
- Ask for a written estimate with line items. You should know exactly what’s being sealed or replaced and what each piece costs before work starts. Free estimates and upfront pricing mean no surprises at the end.
- Don’t skip the register boots. Sealing each register boot is one of the cheapest per-unit items on the list and one of the most common leak points, especially in older Columbia homes.
- Address insulation while you’re in there. If duct runs in the attic have damaged insulation, fixing it during the same visit costs less than coming back for it later.
For an exact quote on your home, call (866) 643-6070. Estimates are free. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost in Columbia?
Duct sealing in Columbia typically costs $350 to $650 for accessible joints and seams, and $650 to $1,200 for a full trunk-and-branch system. The range depends mostly on how much duct is reachable without cutting into walls or ceilings. Call (866) 643-6070 for an exact quote. Estimates are free.
Is it cheaper to repair or replace ductwork?
Repair is almost always cheaper than replacement. Replacing an entire duct system typically runs several times the cost of sealing and repairing the existing runs, and most homes don’t need full replacement. A failed flex run or a disconnected joint can usually be fixed for $200 to $500 instead of rebuilding the whole system.
Can you come today?
Same-day service is often available in Columbia. We answer 24/7, and dispatch runs 7am to 7pm, Sunday through Friday. Call (866) 643-6070 and we’ll get you scheduled as soon as possible.
Do I need duct cleaning before sealing?
Usually yes. Sealing over a dirty system traps dust and debris inside the ducts. If your ducts haven’t been cleaned in several years, combining cleaning with sealing costs $700 to $1,600 together versus booking both separately. Our technicians use Rotobrush and Nikro equipment and carry Abatement Technologies filtration for containment.
Why do ducts leak in the first place?
Most leaks come from failed mastic, dried-out tape, and flex duct that has sagged, kinked, or separated at a joint. Columbia’s humidity swings and attic temperature cycles accelerate that wear. Ducts in unconditioned space fail first. A proper inspection identifies the actual leak points rather than sealing blindly.
Does duct sealing help with air quality?
Yes. Sealed ducts keep dust, attic air, and insulation particles from being pulled into the supply stream. If you also have a Honeywell or Aprilaire IAQ system, sealing the ducts makes that equipment work the way it was designed to. We work with both brands and can advise on the pairing.
Written by the team at Stallion Air Duct Cleaning.
Pricing reflects the Columbia market as of 2026. Stallion Air Duct Cleaning offers free estimates – call (866) 643-6070.
What Our Customers Say
"Did the dryer vent while they were here for a small add on price. The dryer now finishes a load in one cycle instead of two."
- Kristen Mercer"They photographed every return and supply before starting and sent me the file afterward. No upsell to a sanitizing treatment I didn't need."
- Cedric Carter"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Hector Delgado