Air Duct Cleaning Cost in Seattle - One Price Per System, Agreed Before We Start

Every visit starts with

Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

Worth knowing

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

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Before & after – our own jobs

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How Much Does Air Duct Cleaning Cost in Seattle?

Air duct cleaning in Seattle typically costs between $450 and $950 for an average single-family home with one HVAC system, and most Seattle households land right around $650-compare that to How Much Does Air Duct Cleaning Cost? (2026 Price Guide) - Los Angeles, CA to see how markets differ. Larger homes, a second furnace, or heavy pet hair can push the number toward $1,100 or more, while a small condo with a short duct run often comes in under $400. The price you’re quoted should be a written number before any work starts, and at Morton’s it always is.

We’re Morton’s Air Duct Cleaning, and since 2005 we’ve cleaned ducts and dryer vents across the Seattle area for families who just want to know the cost and the plan before anyone touches the house. If you’d rather skip the reading and get a firm number, call (323) 918-4345 and a live person will answer, day or night.

Key Takeaways

• A typical Seattle single-family home pays $450-$950 for a full air duct cleaning.
• Condos and smaller homes with one short duct run often fall in the $300-$450 range.
• Adding dryer vent cleaning usually runs $125-$225 more.
• Seattle’s damp climate, older housing stock, and long heating seasons all shape what a clean actually involves.
• Every Morton’s job comes with a written price upfront, shoe covers and drop cloths, quiet tools during nap hours, and the 365-Day Done Right Promise.

Air Duct Cleaning Cost Breakdown (2026)

Here’s how the numbers shake out for a typical Seattle home. These ranges reflect 2026 pricing for the Seattle metro and include labor, equipment, and standard clean-up. Your written estimate reflects your actual home, not an average.

The size of your home is the single biggest driver. A 1,100-square-foot craftsman in Ballard with one furnace and short ducts is a very different job than a 3,000-square-foot house in Magnolia with two systems and a finished basement. Number of vents and registers matters too: a home with 18 supply registers takes longer than one with eight. Pet hair is the wild card we see most in Seattle. A household with two golden retrievers can carry three times the debris of a home with no pets, and that adds real time to the clean.

Access is the other variable people don’t think about until we’re standing in their hallway. If your furnace sits in a tight closet, behind a finished basement ceiling, or under a stairwell in a 1920s Wallingford bungalow, the crew has to work more carefully to reach every run. That can nudge the price up. It’s one of the reasons we walk the home before quoting rather than giving a number over the phone.

What Affects Air Duct Cleaning Pricing in Seattle

• Size and layout of the home. Square footage, number of floors, and how many supply and return registers you have all translate into time on the job. A rambler in West Seattle with a simple single-zone layout costs less to clean than a split-level in Shoreline with two zones.
• Number of HVAC systems. Two furnaces means two full duct networks to clean. We quote each system separately so you can see exactly what the second one adds.
• Pets. Seattle has one of the highest pet-ownership rates in the country, and dander plus hair coats duct walls fast. We factor pet load into the estimate and choose pet-safe products where they’re available.
• Debris and buildup level. A home that hasn’t had ducts cleaned in a decade carries more dust, and sometimes construction debris from a recent remodel. Heavier buildup takes longer to clear.
• Duct accessibility. Older Seattle homes frequently have ducts routed through crawlspaces and finished ceilings. Tight access slows the work, and we’d rather quote it honestly than surprise you later.
• Add-ons you choose. Dryer vent cleaning, sanitizing, or a second system are optional line items, and we list each price individually so nothing gets bundled without you knowing.

One local factor worth naming: Seattle’s damp, cool climate means our heating systems run hard from October through April, and that long season pulls more dust and moisture through the ducts than a milder climate would. Homes near the water in Alki or along Lake Washington sometimes show more condensation-related buildup, which is why we look at moisture as part of the assessment rather than just dust volume.

To see how this fits into our full range of services, visit our home page.

What Actually Happens During a Clean (and Why It Sets the Price)

Price and process are connected, so it helps to know what you’re paying for. When our crew arrives, they put on shoe covers and lay drop cloths before equipment comes through the door. Your floors are protected from the moment we walk in, and that protection is included on every visit, not sold as an upgrade.

We use professional equipment from brands like Rotobrush and Nikro to agitate and extract debris from the duct walls, not just blow air through the system. On many jobs we also handle filtration components from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, depending on what your system uses. Entry-level rental gear doesn’t reach the way this equipment does, which is a big part of why a professional clean lasts longer than a surface pass.

We work around your household, not the other way around. If a toddler is napping down the hall, the crew runs quieter tools and holds off on the louder stages. If a nervous dog is crate-trained in the living room, we keep the path clear and check with you before moving anything. Before we leave, we take a photo of the clean-up so you can see the space was left better than we found it.

The Cedarwell Care Promise shapes all of this. Morton’s is an independently owned member of the Cedarwell family of companies, and every location works to the same C.A.R.E. values: a written price before any work starts, respectful treatment of the home, background-checked uniformed technicians, and a documented clean-up. And because every job carries the 365-Day Done Right Promise, if something isn’t right, we come back and make it right.

How to Save on Air Duct Cleaning

You don’t need a coupon to keep the number down. A few practical moves do most of the work:

• Bundle duct and dryer vent cleaning in one visit. Combining them usually costs less than booking two separate appointments, since the crew is already set up and on site.
• Change your filter before we arrive. A fresh filter helps the system run cleanly after the job, and it costs you a few dollars at the hardware store instead of appearing on the invoice.
• Clear access ahead of time. Pull boxes away from the furnace, unlock the crawlspace hatch, and move anything blocking the return grilles. Less setup time means a tighter estimate.
• Ask about multi-system pricing upfront. If you have two furnaces, ask specifically how the second system is priced rather than assuming it’s included.
• Book outside peak season when you can. Late summer and early fall are calmer for us than the first cold snap in October, and a flexible schedule sometimes means a better rate.
• Get a written estimate before you commit. Any honest company will put the number in writing first. Ours is free, and it’s yours to keep whether you book or not.

One thing worth avoiding: choosing a quote that’s dramatically lower than everyone else’s. In the Seattle market, a price far below the ranges above usually means a shorter job, lighter equipment, or add-on charges that appear after the work is done. We’d rather give you the real number first.

Call (323) 918-4345 for a free estimate, and a real person will pick up. No voicemail, no chatbot, any hour.

Repair or Replace: A Quick Note on Filters and Components

The duct cleaning price is separate from any parts your system might need. During the visit, we sometimes find a filter housing or component that’s past its useful life. We’ll show you what we see and let you decide, with no pressure either way. If a replacement makes sense, options from Honeywell and Aprilaire are common fits for Seattle homes, and we’ll quote the part clearly before installing anything.

If you’d like to understand our Air Duct Cleaning services before booking, our overview covers what a full visit involves from start to finish.

FAQs - Air Duct Cleaning Cost

How much does air duct cleaning cost in Seattle?

Air duct cleaning in Seattle runs $450-$950 for a typical single-family home with one HVAC system, with most households paying around $650. Condos and smaller homes often fall between $300 and $450. Call (323) 918-4345 for an exact quote, and the estimate is free.

Is it cheaper to clean my ducts or replace them?

Cleaning is almost always cheaper. A professional clean in Seattle costs $450-$950, while replacing ductwork can run into the thousands and usually isn’t necessary unless the ducts are physically damaged or badly sized. If we find damage during your visit, we’ll tell you plainly so you can weigh the options with real numbers. Call (323) 918-4345 and we’ll walk through it.

How much does it cost to add dryer vent cleaning?

Adding dryer vent cleaning to a duct job typically adds $125-$225 in the Seattle market, while a standalone dryer vent cleaning runs $150-$275. Bundling it with a duct cleaning is usually the better value since the crew is already on site. Call (323) 918-4345 for a bundled price.

Why is my quote higher than the ranges on this page?

Quotes climb above $950 for a few specific reasons: a second HVAC system (add $175-$325), heavy pet hair (add $75-$200), or difficult duct access in an older Seattle home. All of these add real time to the job. We list every line item in writing before we start, so you’ll always see what’s driving your number. Call (323) 918-4345 to talk through your home.

Do you offer free estimates in Seattle?

Yes, free estimates are standard on every Morton’s job, and you get the written price before any work begins. We’d rather give you a firm number upfront than surprise you on the invoice. Call (323) 918-4345 any hour and a live person will help you schedule.

Why Seattle Families Call Morton’s

Since 2005, Morton’s Air Duct Cleaning has cleaned ducts and dryer vents with the same approach: show up on time, protect the home, explain the price, and stand behind the work. Every technician is background-checked and arrives in uniform. Every visit includes shoe covers and drop cloths. Every job is backed by the 365-Day Done Right Promise and the Cedarwell Care Promise. And if you’ve been burned before by a crew that left a mess or handed you a bigger bill than you agreed to, that’s exactly the experience we built our process to prevent.

Ready for a number you can actually plan around? Call (323) 918-4345 for a free estimate. A live person answers 24/7, and we’ll give you a written price before anyone touches a single duct.

Pricing reflects the Seattle market as of 2026. Morton’s Air Duct Cleaning offers free estimates – call (323) 918-4345.

Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving Seattle since 2005. As an independently owned member of the Cedarwell family of companies, Paul leads a team that works to the Cedarwell C.A.R.E. values on every job.