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.
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AfterHow Much Does Air Duct Cleaning Cost in Seattle?
Air duct cleaning in Seattle typically costs $450 to $950 for a standard single-family home, with most households landing around $600. Larger homes over 3,000 square feet, homes with multiple HVAC zones, or systems that haven’t been cleaned in a decade can run $1,100 to $1,800. Every job we quote at Linden Air Duct Cleaning comes with the price in writing before any work begins – no surprise invoices when the crew is packing up. If you’re curious about pricing in other markets, see How Much Does Air Duct Cleaning Cost? (2026 Price Guide) - Los Angeles, NC.
That range covers the whole job: negative-pressure extraction, source removal at every vent, agitation of the duct walls, and a final visual check. What it doesn’t cover – and what most quotes you’ll find online quietly leave out – is the cost of a technician who shows up without a background check. For context on what our Air Duct Cleaning services include nationwide, see our full service overview. You’re letting someone into your home. We think the price should reflect that reality.
Key Takeaways
- Standard Seattle home (1,500-2,500 sq ft): $450-$750
- Larger home or multi-zone system: $800-$1,800
- Dryer vent cleaning add-on: $125-$225
- Air duct repair (sealing, reconnecting, patching): $200-$1,200 depending on the scope
- Every quote from Linden is in writing before work starts, and every repair carries the 365-Day Done Right Promise
Air Duct Cleaning Cost Breakdown (2026)
Here’s how the numbers actually break down for a typical Seattle home. We’ve organized this the way we quote jobs – line by line, so you can see where the money goes.
| Service | Typical Price Range | Notes |
|---|---|---|
| Standard whole-home duct cleaning (1-2 HVAC zones) | $450-$750 | Covers supply and return ducts, all registers |
| Large home cleaning (3,000+ sq ft, 3+ zones) | $800-$1,800 | Priced by vent count and system complexity |
| Dryer vent cleaning | $125-$225 | Standalone or bundled; Seattle’s damp climate adds lint-clog risk |
| Air duct repair (sealing leaks, reconnecting runs) | $200-$1,200 | Written guarantee on every repair |
| Mold or moisture remediation | $600-$2,500 | Rare, but common in older Ballard and Wallingford basements |
| HVAC coil cleaning add-on | $150-$350 | Often bundled with a full clean |
| Sanitizing or antimicrobial treatment | $100-$300 | Usually unnecessary unless there’s actual growth |
The biggest cost driver is vent count. A 1,200-square-foot bungalow in Fremont might have 8 vents. A 3,800-square-foot house in Magnolia with two furnaces could easily have 30. Each vent takes time, equipment, and access. The second driver is condition – a system that’s never been touched in 15 years takes longer than one cleaned three years ago. And the third is access: finished basements, tight crawlspaces, and ceiling-mounted runs in older Seattle homes add labor that a simple ranch plan doesn’t.
What shouldn’t drive the price is the quality of who’s doing the work. We use Rotobrush and Nikro equipment – the same trade-trusted brands that show up on the best commercial jobs. You’re not paying for a guy with a shop vac and a ladder.
What Affects Air Duct Cleaning Pricing in Seattle
- Number of vents and HVAC zones. Seattle homes range from 6-vent condos in Belltown to 40-vent estates in Broadmoor. Vent count is the single largest price factor.
- System age and access. Pre-1970 homes in Queen Anne and Capitol Hill often have original ductwork with tight transitions and limited attic access, which slows the work.
- Duct material. Flexible duct (common in newer construction) cleans differently than rigid sheet metal or fiberglass duct board. Fiberglass-lined ducts require gentler agitation and sometimes cost more.
- Visible contamination. If we find rodent debris, water staining, or heavy mold in a crawlspace – both real issues in Seattle’s wet climate – the job expands beyond a standard clean.
- Add-on services. Dryer vent cleaning, coil cleaning, and repair work are priced separately. Bundling them usually saves $75-$150 over booking each alone.
- Time of year. Late fall and winter are our busiest months in Seattle because heating systems run constantly and homeowners notice dust and odors. Spring and summer scheduling is often easier and occasionally less expensive on bundled jobs.
One more Seattle-specific factor: our climate. The Pacific Northwest averages 150 rainy days a year, and that moisture doesn’t stay outside. Crawlspaces under older West Seattle and Ballard homes regularly sit at 60-70% relative humidity, which is exactly the range where dust in ductwork turns into a food source for mold. We see it in about one in five jobs during the wet months. That’s not a scare tactic – it’s a reason to actually look inside the ducts rather than assume they’re fine.
How to Save on Air Duct Cleaning
You’ll find plenty of duct cleaning coupons floating around Seattle. Some are legitimate. Some are the front end of a bait-and-switch where the $99 “special” becomes $600 once the crew is in your house pointing at things. Here’s how to actually save money without walking into that trap.
- Bundle dryer vent cleaning with duct cleaning. Doing both on one visit saves the trip charge and typically $75-$150 off the total.
- Get the price in writing before anyone knocks. A written quote protects you from the “we found something extra” upsell. It’s also a standing practice at Linden – not a request you have to make.
- Schedule in spring or early summer. Contractors are less booked, and bundling discounts are easier to negotiate. Fall bookings fill two to three weeks out.
- Ask about multi-system pricing. Homes with two furnaces often get quoted as two separate jobs. Ask for combined pricing – most reputable companies will discount the second system.
- Skip the antimicrobial fog unless there’s actual growth. A $200 sanitizing treatment sounds reassuring, but if there’s no visible mold or microbial issue, it’s an upsell. Spend that money on the cleaning itself instead.
Free estimates are standard in our industry. Call (980) 447-2498 and we’ll ask a few questions about your home – square footage, vent count, system age – and give you a real number, not a “starting at” range that doubles on the day.
How Long Does Air Duct Cleaning Take in Seattle?
A standard Seattle home takes 2 to 4 hours for a full duct cleaning. Larger homes or homes with heavy contamination can take 5 to 6 hours. Dryer vent cleaning alone runs 45 to 90 minutes.
If a company promises to clean your whole system in 45 minutes, they’re not cleaning it. They’re vacuuming a few vents and calling it done. Real cleaning means negative-pressure extraction at every run, source removal with agitation tools, and a final walkthrough where you can see the before-and-after photos. That takes time.
We schedule most jobs in a single visit. If we find a problem that requires a return trip – a disconnected duct, a mold issue that needs remediation – we file the follow-up rather than pad the original quote. That’s part of the accountability in the 365-Day Done Right Promise: if the work isn’t right, we make it right. It’s in writing on every job.
Is Air Duct Cleaning Worth It in Seattle?
For most Seattle homeowners with a system that hasn’t been cleaned in 3+ years, yes. For homes with new construction (under 2 years old), light use, and no visible dust issues, no – your ducts are probably clean enough. Here’s how to decide.
Cleaning pays off when:
- You see visible dust blowing out of registers when the HVAC kicks on
- Someone in the house has seasonal allergies that get worse indoors, especially in the fall when the heat first comes on
- You’ve done a remodel or major renovation in the last two years – drywall dust travels deep into ductwork and stays there
- You notice musty or stale odors that don’t clear when you change the filter
- You’ve had any rodent activity. Mice in ductwork are a real problem in older Seattle homes, and their droppings are a genuine health concern
- It’s been 5+ years since your last cleaning, and you notice dust buildup on the return grilles
If none of those apply, save the money this year. We’d rather tell you to wait than sell a service you don’t need. That’s the honest version of the pitch.
For homeowners who do need it, read more about our services to see what a standard visit includes.
What Does a Reputable Air Duct Cleaning Include?
Here’s what should show up in every quote – and what should make you walk away if it’s missing.
- A written price before any work begins. Not a verbal “starting at.” A number, on paper, that doesn’t change when the crew shows up.
- Negative-pressure extraction. A vacuum strong enough to keep the whole system under negative pressure so loosened dust doesn’t end up in your living room.
- Source removal with agitation tools. Brushes and whips that physically knock debris off the duct walls – not just suction at the opening.
- Register and vent cleaning. Every supply and return register wiped out, not just the room you’re standing in.
- A visual result you can see. Before-and-after photos of what came out. If a company won’t show you, that’s a signal.
- A known technician. At Linden, you get the tech’s name and photo before the visit, and every technician is background-checked, identity-verified, and wearing a photo ID badge shown at your door. That’s the Threshold Standard, and it applies on every call – not just the first one.
We use Rotobrush and Nikro equipment, and we work with air-quality products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman when a job calls for filtration upgrades. None of those brands are magic. They’re just the tools that hold up on real jobs.
What About Cheap Air Duct Cleaning Ads in Seattle?
Seattle has a handful of companies advertising $99 whole-home duct cleaning. If you call them, here’s what usually happens: the “whole-home” price covers one main trunk line and a few vents, and everything else is an add-on. The final bill lands between $500 and $900 – which is the same as a fair quote from a legitimate company, except you spent the first half hour arguing about pricing while the crew stood in your living room.
The $99 ad isn’t always a scam. Sometimes it’s a real loss-leader where the company makes money on add-ons. But you should know what you’re walking into. Two signs to watch for:
- The price only holds if you don’t need “extras.” A written price before work starts eliminates this. If they can’t put a number down before opening a vacuum, that’s a red flag.
- The technician is a stranger. No name in advance, no photo, no ID badge at the door. You’re letting someone walk through your house with your kids and your belongings. That should be a decision you make with information, not hope.
Linden Air Duct Cleaning operates to the Threshold Verified standard. That means every technician who shows up at your door is someone whose name and photo you already have, whose background has been checked, and who will show a photo ID badge when you answer. We’ve been serving homeowners this way since 2004 as part of the Threshold Group family. The phone is answered by a live person 24/7, so if you call at 9pm with a question before your appointment, a real human picks up.
That’s the premium you’re paying for when you book with us. Not flashier equipment. Not a fancier truck. Accountability at every step, in writing.
How Much Does Air Duct Repair Cost in Seattle?
Air duct repair in Seattle typically costs $200 to $1,200, depending on what’s broken and how accessible it is. The most common repairs we see:
- Disconnected duct runs ($200-$500): A flex duct that’s come loose from a plenum or trunk line. Common in attics after a hot summer.
- Leaking seams and joints ($250-$700): Sealing leaks with mastic and mesh. Leaky ducts can waste 20-30% of your heating dollars, so this often pays for itself within a couple of seasons.
- Crushed or kinked flexible duct ($300-$800): Usually from someone walking across ductwork in the attic. Restricts airflow and strains the HVAC system.
- Full run replacement ($600-$1,200): When a duct section is too damaged to repair. Priced by linear feet and accessibility.
Every repair we do comes with a written guarantee and a free second visit if the repair fails within the covered period. That’s standard on every job, not an upgrade you pay for.
If your repair is part of a larger duct cleaning job, we’ll often bundle the pricing so you’re not paying a trip charge twice. Ask when you call.
FAQs – Air Duct Cleaning Cost in Seattle
How much does air duct cleaning cost in Seattle?
Air duct cleaning in Seattle costs $450-$750 for most single-family homes, and $800-$1,800 for homes over 3,000 square feet or with multiple HVAC zones. For comparison, see How Much Does Air Duct Cleaning Cost in Staten Island, NY? (2026 Price Guide). Dryer vent cleaning adds $125-$225. Call (980) 447-2498 for an exact quote on your home – estimates are free.
Is it cheaper to repair or replace ductwork in Seattle?
Repair is almost always cheaper. A typical repair runs $200-$700 versus $2,500-$8,000+ to replace an entire duct system. Replacement only makes sense when the ductwork is failing in multiple places, made of degraded materials, or so contaminated it can’t be cleaned. We’ll tell you honestly which category you’re in – even if the answer is “wait another year.”
Do I need air duct cleaning if my house is new construction in Seattle?
Usually no, unless you’ve done a remodel since moving in. New construction ducts are clean at install, but any renovation – even a small one – pushes drywall dust and debris through the system. If you’ve remodeled in the last two years, cleaning is worth the $450-$750. Call (980) 447-2498 and we’ll ask a few questions to figure out if it’s actually needed.
How often should I get my air ducts cleaned in Seattle?
Every 3 to 5 years for most Seattle homes. Some homes can go 7+ years without issue. Homes with pets, recent renovations, allergy sufferers, or any rodent activity should be on the shorter end. Seattle’s damp climate pushes the timeline up a bit for homes with crawlspaces or older ductwork – we see more moisture-related buildup in Ballard, Wallingford, and West Seattle than in newer suburban builds.
Can I get air duct cleaning done the same day in Seattle?
Sometimes, but not usually. Our schedule typically books 3 to 10 days out, and longer during fall and winter. If you have an urgent issue – a recent rodent problem, water damage, or a system that’s blowing visible dust – call (980) 447-2498 and we’ll see if we can fit you in sooner. A live person answers 24/7, so you’re not leaving a message and waiting.
What’s the cheapest way to get air duct cleaning in Seattle?
The cheapest way is usually to bundle duct cleaning with dryer vent cleaning on the same visit, which saves $75-$150. Scheduling in spring or summer also helps, since fall and winter book two to three weeks out. But the real money-saver is choosing a company that puts the price in writing up front. The $99 ads that turn into $700 invoices at the door aren’t cheap – they’re just expensive in a confusing way.
Why Homeowners Choose Linden Air Duct Cleaning
We’re a locally operated part of the Threshold Group family, serving homeowners since 2004. Not a franchise. Not a lead-generation call center routing your address to whoever’s available. When you call (980) 447-2498, a live person answers and books your job with a technician whose name and photo you’ll have before they arrive.
What you get on every job:
- Written price before any work begins. No exceptions. No surprise invoice.
- 365-Day Done Right Promise. If the work isn’t right, we make it right – in writing, on every job.
- Written guarantee on every repair. Plus a free second visit if a covered repair fails.
- Background-checked, identity-verified technicians. Name, photo, and photo ID badge at the door – every visit.
- Live phone coverage 24/7. A real person, any time you call.
- Professional-grade equipment. Rotobrush and Nikro for the cleaning; Honeywell, Aprilaire, Abatement Technologies, and Guardsman for air-quality products when they’re needed.
Marcus Veale leads our team, and he’s made one thing clear from the start: the customer should never feel uncertain about who’s coming to the door or what the job will cost. That standard shapes every visit.
Air duct cleaning in Seattle isn’t the cheapest home service you’ll book this year. It shouldn’t be. What it should be is honest, verifiable, and backed in writing. That’s what we deliver.
Ready for a real number on your home? Call (980) 447-2498 for a free estimate. A live person answers, day or night.
Pricing reflects the Seattle market as of 2026. Linden Air Duct Cleaning offers free estimates – call (980) 447-2498.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Seattle homeowners since 2004.
What Our Customers Say
"Tech arrived with a badge and a printed sheet of what he'd be doing. Ran a camera through the main trunk before and after so I could see the dust difference. Vents smell cleaner already."
- Gina R."Priced by the system, not by the vent, and he told me up front. No pressure to add the sanitizer and I said no without any fuss."
- Faith N."We had construction dust packed into every register after a remodel. They sealed off the returns, used negative pressure, and left the floors cleaner than they found them."
- Paul E.