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 Chatsworth?
Duct repair and sealing in Chatsworth typically costs $350 to $1,200 for a single-family home, with most jobs landing between $550 and $850. Small sealed leaks in an accessible attic run closer to $350, while replacing crushed flex runs or sealing a sprawling older system pushes toward the top of that range. The written estimate you get on site is what sets your final price.
That $550 to $850 middle band covers the work we see most often in Chatsworth: a handful of disconnected joints, torn flex duct near a plenum, or a run that was crushed during an earlier HVAC swap. It’s not a number pulled from thin air. It reflects what materials and labor actually run here, and the scope of damage our technicians find once they’re in the attic or crawlspace looking at the problem.
Duct Cleaning Chatsworth has handled duct work across the Chatsworth area since 2017. We treat repair as its own service, not an upsell tacked onto a cleaning. When a technician finds a break during a cleaning visit, the point is to fix it, not hand you a second contractor’s number.
Key Takeaways
- Typical duct repair and sealing in Chatsworth: $350 to $1,200, most jobs $550 to $850.
- Sealing accessible joints is the low end; replacing crushed or disconnected flex runs is the high end.
- Attic heat and retrofitted HVAC systems are the two biggest cost drivers in this market.
- Free estimates. Call (888) 494-4745. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Duct Repair & Sealing Cost Breakdown (2026)
Every job is priced from what’s actually wrong with the duct system. Still, these line items give you a realistic picture of how a quote in Chatsworth adds up.
| Line Item | Typical 2026 Range | Notes |
|---|---|---|
| Sealing accessible joints and seams (mastic and tape) | $350 – $600 | Best-case scenario: leaks you can reach without demolition |
| Repairing disconnected or slipped flex duct runs | $200 – $450 per run | Common after HVAC replacements and in older attic installs |
| Replacing crushed or collapsed flex duct | $250 – $550 per section | Usually found where ductwork was stepped on or pinched |
| Full system sealing (whole-house, 10-15 runs) | $850 – $1,200 | For older systems with leaks throughout |
| Duct repair combined with duct cleaning in Chatsworth | $500 – $1,400 | Repair before or after cleaning, priced together |
| Dryer vent cleaning (separate service) | $150 – $275 | Not part of duct repair; quoted on its own |
These are typical ranges, not a quote. The written estimate sets the final price, and it’s free.
What drives the number up or down
Access is the biggest swing. A sealed joint you can reach from a ladder in the garage or a low attic costs far less than a run buried behind finished drywall. The number of runs matters too: sealing one or two leaks is a short visit; sealing a system with fifteen leaky joints takes longer and uses more material. Damaged insulation on flex duct adds cost, since you can’t just tape over torn insulation and call it done. And if the problem turns out to be a crushed run under a floor, we’re pricing removal and reinstall, not just a seal.
On the lower end, well-maintained systems with metal duct and accessible joints come in near $350 to $500. On the higher end, an older Chatsworth home with a mix of flex and sheet metal, some runs crushed during a past remodel, and joints that have already failed once will land closer to $1,000 or more.
What Affects Duct Repair & Sealing Pricing in Chatsworth
- Attic heat. Chatsworth summers push attic temperatures well above 120 degrees, and that heat breaks down flex duct over time. Overheated, brittle ductwork fails at the seams and connections first, which is exactly where we find the leaks. Replacement, not just repair, becomes the answer more often here than in cooler climates.
- Home age and HVAC history. Many Chatsworth homes date to the 1960s through the 1980s. When a system that old has had its HVAC replaced two or three times, the original ductwork often got crushed or disconnected during those swaps. A technician inspecting that kind of system prices more than a single repair.
- Duct material. Flex duct is cheaper to repair but more prone to crushing and tearing. Rigid sheet metal costs more to seal but holds up longer. Most Chatsworth homes are a mix, and the mix changes the quote.
- Contamination. If the ducts are also dirty or carry buildup from a renovation, we bring in Abatement Technologies equipment to handle more than routine dust. Cleaning before sealing usually makes sense, and both get priced into the estimate.
- Light commercial jobs. Small offices and retail spaces run on different duct layouts with larger plenums and rooftop units. Those quotes are separate from residential pricing.
- Hidden damage. Some crushed runs only show up after a camera or a technician is in the attic. We price what we can see and confirm, and we don’t guess at dollars for damage we haven’t found.
How to Save on Duct Repair & Sealing
The single best way to keep the cost down is to catch the problem early. A leaky joint is a $50 repair. A crushed run under a floor is a $500 replacement. When you notice rooms that don’t heat or cool evenly, or dust settling faster than it should, that’s the time to call, not after a year of the system running against itself.
- Get a free estimate before doing anything else. Our estimates cost nothing and give you a real scope of work, not a guess.
- Bundle repair with cleaning when it makes sense. If your ducts are also dirty, sealing after cleaning usually saves versus two separate visits. Ask about air duct cleaning in the same visit.
- Fix accessible leaks before they spread. Small sealing jobs cost less than replacing a whole run later.
- Ask for the scope in writing. A written estimate that lists each run and each joint keeps the job honest and lets you compare fairly.
- Check whether a past remodel left damage. If you know ductwork was re-routed when a bathroom or kitchen was added, tell us. That points the technician straight to the likely break.
One thing we don’t do is quote over the phone and pretend it’s final. Duct work hides under insulation and behind drywall until someone’s up there looking. Free estimate, then a written price. Call (888) 494-4745 to schedule. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Why We Price Repair Separately From Cleaning
Plenty of companies clean ducts and then hand off any broken runs to an HVAC contractor. That leaves you coordinating two companies, two schedules, and often two sets of assumptions about what’s causing the problem. We do both cleaning and repair in-house. That’s the whole reason we carry Rotobrush and Nikro systems alongside sealing materials and replacement flex duct on the same truck. It’s also why a cleaning visit and a repair visit don’t have to happen on different days.
Our equipment lineup is professional-grade, not shop-vac shortcuts. Rotobrush and Nikro are the same platforms used in NADCA-aligned duct cleaning protocols, and we stock Abatement Technologies gear for tighter, more contaminated systems. We’re also familiar with Honeywell and Aprilaire filtration and air quality systems, which matters when a repair turns into a conversation about what’s circulating through the house between filter changes. That’s the question that actually drives most calls we get.
If the ductwork in your Chatsworth home is older and negleced, the first thing we do is inspect the accessible system and document what we find. Then you get an estimate in writing. No guesswork, no dollar figure pulled from a call.
FAQs – Duct Repair & Sealing Cost
How much does duct repair and sealing cost in Chatsworth?
Most duct repair and sealing in Chatsworth runs $550 to $850, with a full range of $350 to $1,200. Small accessible sealing jobs start near $350; replacing crushed runs and sealing a sprawling older system pushes toward $1,200. Call (888) 494-4745 for a free estimate and a written price.
Is it cheaper to repair my ducts or replace them entirely?
Repair almost always costs less than a full replacement. Sealing joints runs $350 to $600, while replacing a whole duct system is a separate, much larger project outside our scope. If the damage is limited to a few runs, repair wins on cost every time. Call (888) 494-4745 and we’ll tell you honestly what your system needs.
Can you come out and give me an estimate today?
Yes. Same-day estimates are often available across Chatsworth. Call (888) 494-4745. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. Every estimate is free and written.
My dryer is taking two cycles to dry a load. Is that duct repair?
Probably not. A slow dryer usually means a clogged vent, not damaged ductwork. Our dryer vent cleaning service handles that, and it typically runs $150 to $275. It’s priced separately from duct repair and worth doing as a fire-safety step, not just for performance. Call (888) 494-4745 to schedule.
What if the technician finds more damage during the repair?
We stop and tell you. Any additional work gets a revised written estimate before we touch it. You won’t get a surprise number at the end of the job. Call (888) 494-4745 if you have questions about how the process works.
Why Chatsworth Homeowners Call Us
The combination of a hot, dry climate, a lot of older housing stock, and HVAC systems that have been replaced more than once means Chatsworth has its share of compromised ductwork. If your air conditioning is running longer than it used to, or some rooms never quite cool down, there’s a good chance a duct problem is part of the cause. We find it, quote it honestly, and fix it.
Our three services are cleaning, dryer vent care, and repair. That’s it. We don’t install HVAC systems, we don’t clean chimneys, and we don’t dabble in unrelated trades. When you call us for duct work, that’s what you get: a technician and equipment that are purpose-built for duct and ventilation systems, not a generalist squeezing in one more line item.
We also do the work for property managers and light commercial clients across the area, so if you’re managing a small building or a rental, we can scope and price that separately. Same standards, same written estimate.
How to Get Started
If you’re not sure whether you need repair or just cleaning, the visit clarifies it. We inspect what’s accessible, document any failed joints or crushed runs, and give you a written price. If sealing is all that’s needed, we tell you. If a run needs replacement, we price it. Either way, the estimate is free and there’s no pressure to decide on the spot.
Call (888) 494-4745 for your free estimate. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. Clean ducts are the start; sealed, repaired ducts are the finish. If you’re in Chatsworth and the system is running ragged, we can get out there and find out why.
Pricing reflects the Chatsworth market as of 2026. Duct Cleaning Chatsworth offers free estimates – call (888) 494-4745.
Written by the team at Duct Cleaning Chatsworth, serving Chatsworth since 2017.
What Our Customers Say
"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Ruben Morales"Two guys, about three hours, plastic down at every register, and they wiped the vent covers before putting them back."
- Sofia Guzman"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Brooke Vaughn