Whole-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.
Before
After
Before
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Before
AfterAir Duct Replacement Across the United States
Some ductwork can’t be saved. Crushed flex runs, rusted trunk lines, sections chewed by rodents, and old duct board that sheds fibers into the airstream are past the point where cleaning or tape will help. Morton’s Air Duct Cleaning has been tearing out failed ducts and putting in new ones for homeowners nationwide since 2005, and every replacement starts with a written price before we touch anything and ends with a 365-Day Done Right Promise. Call (323) 918-4345 and a live person answers, any hour, any day.
Air Duct Replacement Services
Air Duct Replacement means removing damaged or worn-out ductwork and installing new runs, boots, and connections so your system moves air the way it was designed to. It can be one failed branch line or the whole network between your furnace and every register in the house. Most homes we replace ducts in are 20 to 40 years old, or had a past remodel, pest problem, or water event that left the original ducts in bad shape. Morton’s walks the entire system first, marks every section that needs to come out, and puts the full scope and price in writing. A single replaced branch usually runs $300 to $900, and a whole-home replacement commonly lands between $3,500 and $8,000 depending on square footage, number of runs, and attic or crawlspace access. See our Air Duct Repair page if you think a patch might be enough.
Partial Replacement
When only one or two runs have failed, we replace those sections and tie them back into sound ductwork. You pay for what is actually broken and nothing else.
Whole-Home Replacement
When the original system is brittle, leaking at every joint, or sized wrong for the equipment, a full tear-out and new install is cheaper over time than repeated repairs.
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.
Repair or Replace Your Ducts
The honest answer depends on what we find. A few loose joints and a torn section are a repair job, and we will tell you so. Replacement makes sense when damage is spread across the system, when the material itself has broken down, or when the ducts were never installed properly in the first place. Our technicians photograph what they see inside the runs so you can judge for yourself instead of taking our word for it.
When a Repair Is Enough
If the ducts are structurally sound and the problems are limited to leaky joints, a disconnected boot, or one damaged section, sealing and patching costs far less than new runs. We cover that work under Duct Sealing and quote it separately.
When Replacement Is the Better Call
Collapsed flex duct, rust-through on metal trunks, mold growth on duct board, widespread rodent damage, and runs that were crushed or kinked during an earlier remodel all point toward replacement. So does a system that loses so much air through leaks that new equipment can never perform properly. Putting a new furnace or air conditioner on bad ducts wastes much of what you paid for the equipment.
Duct Materials We Install
The right material depends on where the duct runs, how much air it carries, and your local climate. We choose it for the job, not for what is easiest to stock.
Insulated Flex Duct
Flexible duct with a built-in insulation jacket works well for branch lines in attics and between floors. It goes in fast and bends around obstacles, but it has to be pulled tight and supported every few feet. Sagging flex is one of the most common reasons we get called back to other contractors’ work.
Rigid Sheet Metal
Galvanized steel trunk lines and main branches last for decades, move air with less resistance, and clean easily. We use metal wherever the layout allows it, wrapped in insulation when the run passes through unconditioned space.
Duct Board and Fittings
Fiberglass duct board is still common in older homes. When it has shed its lining or taken on moisture, we replace it with metal or insulated flex rather than patching it, because loose fibers and damp board are not something to leave in your airstream.
Signs Your Ductwork Needs Replacing
- Your energy bills keep climbing with no change in how you live. Leaky or disconnected ducts can lose a large share of the air your system makes before it reaches a room.
- Some rooms never get comfortable. A crushed or torn run starves the rooms it feeds, and no thermostat setting fixes that.
- You see insulation or duct lining hanging out of a register. That means the inside of the duct is breaking apart and pieces are traveling with the air.
- You have had rodents or other pests in the attic or crawlspace. Chewed flex and contaminated runs are best removed, not cleaned.
- The ducts are more than 25 years old, or were damaged by water or a remodel. Age, moisture, and heavy-handed construction are what finish off ductwork.
- Your system is noisy, rattles, or whistles at the registers. Undersized or poorly connected runs push air through gaps and tight spots, and you hear it.
Our Replacement Process, Step by Step
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Inspect the whole system. We check every accessible run, boot, and connection, with a camera where we can’t see, and note what is failing and why.
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Written scope and price. You get a list of exactly which sections come out and what goes in, with one price. That number doesn’t change on the invoice.
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Protect your home. Shoe covers, drop cloths, and covered furniture near the work. Attic and crawlspace debris stays contained.
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Remove the old ductwork. Failed sections are cut out and hauled away, not left behind in the attic.
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Install, seal, and insulate. New runs are sized to the equipment, supported properly, and sealed at every joint with mastic, not just tape.
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Test and walk through. We check airflow at the registers, clean up, and show you the finished work before we leave.
Sizing and Sealing the New System
A new duct system is only as good as its design. Runs that are too small choke the airflow and make the blower work harder. Runs that are too large lose velocity, and air never reaches the far rooms. We size each branch to the room it serves and to the capacity of your furnace or air handler, and we keep runs as short and straight as the house allows. Every seam, boot, and takeoff is sealed with mastic and then insulated where it passes through attics, crawlspaces, or garages.
Sealing matters as much as the ducts themselves. A brand new system with leaky joints performs like an old one. If your existing ducts are mostly sound, our Duct Sealing service may do more for your bills than a full replacement. We’ll tell you which is the better spend.
Cleaning After Replacement
New ductwork connects to an existing furnace cabinet, blower, and coil, and those parts hold years of dust. Connecting clean new runs to a dirty air handler defeats half the purpose. When you add a HVAC Cleaning visit to a replacement job, we clean the blower, coil, and cabinet while the system is open, so the whole path from equipment to register starts fresh. If your existing ducts are intact and just dusty, Air Duct Cleaning may be all you need. You can also start at our home page to see everything we do.
How Much Does Air Duct Replacement Cost?
Price depends on how much duct comes out, what goes in, and how hard the work is to reach. As a general guide:
- Single branch or boot replacement: $300 to $900.
- Several runs in one area of the house: $1,200 to $3,000.
- Whole-home replacement: $3,500 to $8,000 for a typical single-family home, higher for large or multi-system houses.
- Tight crawlspaces and finished ceilings: add labor, because access is slower.
These are ranges, not quotes. We give you an exact written price after we inspect the system, and it doesn’t move once you approve it. Pricing is per job. There are no subscriptions and no surprise add-ons.
Why Homeowners Choose Morton’s
Morton’s has worked on residential ductwork since 2005. We replace what is broken, leave what is working, and show you photos of both. Our crews carry the Cedarwell Care Promise into every home: written pricing, shoe covers, drop cloths, and a clean worksite when we leave. Behind every job sits our 365-Day Done Right Promise. If something isn’t right within a year, we come back and fix it at no charge.
Where We Work
Morton’s Air Duct Cleaning serves homeowners across the United States through local crews who work to the same standard on every job. Each location is independently owned and chooses to follow it: written pricing, floor protection, photo proof, and a year-long promise behind the work. Wherever you are, the process is the same.
Frequently Asked Questions About Air Duct Replacement
Air duct replacement is removing damaged ductwork and installing new runs, boots, and connections in its place. It can cover one failed section or the entire system. At Morton’s, every replacement starts with an inspection and a written price, and new ducts are sealed and insulated before we leave.
A single branch can be done in a few hours. Most whole-home replacements take one to three days, depending on the size of the house and how easy the attic or crawlspace is to work in. You get a time estimate with your written quote.
A single branch usually runs $300 to $900, and a typical whole-home replacement runs $3,500 to $8,000. Access, materials, and the number of runs move the price. You get an exact written price before any work begins. Call (323) 918-4345 for a free estimate.
Often yes. Leaky joints, a loose boot, or one torn section can usually be repaired for much less. Replacement is the better call when damage is widespread, the material has broken down, or mold or pests have contaminated the runs. We tell you which one applies and show you why.
Common signs are rising energy bills, rooms that never get comfortable, insulation or lining hanging out of registers, rodent activity, and ducts older than 25 years. A camera inspection settles it, and we show you what we find before recommending anything.
Every job carries the 365-Day Done Right Promise. If the work isn’t done right within a year, we come back and make it right at no charge. It is stamped on every job, not offered only when someone asks.
Schedule Your Air Duct Replacement Today
Ready for ducts that deliver the air you are paying for? Call (323) 918-4345 and talk to a live person, any hour of any day. You’ll get a free, no-obligation estimate with a written price before any work begins. Every job is backed by the 365-Day Done Right Promise and the Cedarwell Care Promise.
Written by Paul Adeyemi, owner at Morton’s Air Duct Cleaning, serving homes and businesses nationwide since 2005.