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.
Fast, Reliable Air Duct Cleaning Across Duvall
Air duct cleaning in Duvall typically runs $425 – $650 for a full system on a standard two-story home, and most jobs take four to six hours once our crew arrives. If you’re noticing dust settling back on shelves a day after wiping them, or if your heat pump has been working harder than it should, your ducts are the likely culprit. We serve every neighborhood in Duvall, from the older lots along NE Big Rock Road to the newer builds up on the ridge, and we answer the phone at (737) 727-2314 when you call.
What you won’t get from us: a quote that changes when the van pulls up, a per-vent price that balloons on a return-side run, or a clean the crew can’t prove. What you will get: one flat price per system agreed before we take off a single register, and photographs of your actual ducts when the job is done.
Why Cardinal Air Duct Cleaning Is Duvall’s Preferred Air Duct Cleaning Company
Duvall homeowners call us because we do the one thing this trade often skips: we tell you the truth about what your system actually needs. That starts with a camera inspection of the supply and return runs, not a quick look at the filter slot and a canned pitch. The Snoqualmie Valley is damp for most of the year, and that moisture turns alder pollen and cottonwood fuzz into a paste that lines return ducts and the air handler itself. A furnace-only cleaning, the kind common in colder cities, misses exactly where Duvall’s air actually gets dirty.
Omar Haddad leads our crew and has built the team around one standard from Relay Home Co., our parent company founded in 2005: the written price lands in your hand before work begins, and it does not move. We’re held to The Relay Visibility Guarantee on every booking. That means a live trackable arrival window, a tech whose name you know before they knock, and before-and-after photo documentation sent straight to your phone. Duvall customers consistently tell us the same thing: the transparency is the reason they recommended us to a neighbor.
Our technicians are background-checked, uniformed, and trained on professional-grade equipment, not truck-mounted shop vacs with a brush attachment. We run Rotobrush agitation systems, Nikro HEPA vacuums, and Abatement Technologies containment units. For a house in Duvall, that equipment matters more than it does in a dry, high-desert city, because the material you’re pulling out of the ducts here is heavier, wetter, and more likely to be packed into the branching runs.
HVAC Duct Cleaning in Duvall
HVAC duct cleaning in Duvall is really supply-and-return cleaning plus an air-handler check, because almost every house in this valley heats and cools with a heat pump. That’s the difference between what we do here and what a furnace-only company would do in Spokane or Wenatchee. Heat pumps move air differently, and the air handler sits in a garage, a closet, or a crawl space where valley humidity keeps dust and pollen sticky. When we clean HVAC ducts in Duvall, we open both the supply and return sides, agitate the interior surfaces with a powered brush, and pull everything loose into a HEPA-filtered negative-pressure stream so it doesn’t recirculate into your living room.
For a typical Duvall home, HVAC duct cleaning runs $425 – $650 depending on square footage, the number of returns, and how much buildup the camera inspection reveals. Most customers schedule this every three to five years, though houses with big dogs, recent drywall work, or a cedar shake roof shedding into the attic may need it sooner.
Supply and Return Runs, Treated as One Job
Some companies price per vent, which quietly incentivizes skipping the return side where valley pollen actually concentrates. We don’t. The flat price covers every supply and return register in the system, plus the main trunk lines and the air handler cabinet. The camera inspection before we quote tells us whether the job is straightforward or whether we need extra passes through heavily caked branch runs.
Air Handler and Blower Motor Attention
In Duvall’s heat-pump homes, the air handler is the collection point for whatever the filters miss. Alder catkins, cottonwood lint, and the fine gray dust that comes off construction adhesive in 1990s builds all settle there. We open the handler, inspect the blower wheel and evaporator coil, and clean them as part of the job when the inspection calls for it. That’s not an add-on we pitch at the door. It’s in the flat price.
Vent Cleaning in Duvall
Vent cleaning in Duvall means more than registers and grilles. It means pulling each cover, cleaning the boots and the first few feet of run behind them, and checking that airflow from every room actually matches the system’s design. In a valley this humid, vent boots collect condensation, and condensation collects dust into a paste that narrows the airway. Some homes here also have bathroom exhaust vents and dryer vents that need the same attention. We clean the vent runs that matter to your air quality and to your energy bill, not just the pretty metal covers you see from the hallway.
Vent cleaning as part of a full Air Duct Cleaning job is included in the $425 – $650 flat price. If you only need specific vents done, like a bathroom exhaust that’s stopped pulling moisture or a dryer vent that’s building lint, we’ll give you a separate written price before we touch anything. No per-vent math at the door.
Bathroom and Dryer Vent Runs
Duvall humidity means bathroom vents work hard, and a clogged exhaust vent can push moisture into the attic where it condenses on framing. That’s a slow-rot problem nobody wants to find during a re-roof. We clean those runs, check the damper, and send you before-and-after photos so you can see the difference.
Smartphone Photos, Not Stock Images
When the job wraps, you receive photos of your actual ducts and vent runs, taken inside the system before and after. That’s the Relay Standard in practice. You don’t have to trust a claim. You can look at the evidence on your phone.
Trusted Brands We Service in Duvall
We work on every major brand installed in Snoqualmie Valley homes, including Honeywell filtration units, Aprilaire media cabinets, and Guardsman UV systems. Our techs arrive with parts and filter replacements for most common configurations, which saves Duvall homeowners a second visit. When a media cabinet or electronic air cleaner needs attention during the duct job, we handle it right then, on the same visit, for the price agreed before we started.
Common Air Duct Cleaning Problems We See in Duvall Homes
- Return-side neglect. Crews in a hurry clean the supply runs and skip the returns, but in Duvall the returns are where damp pollen and lint settle deepest. We always clean both sides, and the camera shows us if a previous company didn’t.
- Heat-pump air handlers packed with valley dust. Cottonwood and alder pollen drawn in from shaded lots along the river get past standard filters and coat the blower wheel and coil. A filter change won’t fix that; the handler needs direct cleaning.
- 1990s two-story builds with long flex runs. Many homes off NE Big Rock Road and along the valley floor have flex duct branch lines that sag and collect debris in low points. Those runs need agitation, not just vacuum, to come clean.
- No proof the job was done. Homeowners who used a low-price outfit often can’t verify anything was cleaned. Our before-and-after photos of your own ducts mean you never have to take anyone’s word for it.
Pricing for Air Duct Cleaning in Duvall, WA
A full-system air duct cleaning for a typical Duvall home runs $425 – $650. Single-story homes under 1,500 square feet usually sit at the lower end. Two-story homes with two returns and longer branch runs sit at the higher end. If the camera inspection shows heavy buildup in flex ducts or an air handler that needs mechanical cleaning, the written price reflects that before we begin. That price does not change at the door.
Why are some quotes for Duvall duct cleaning $149 or $199? Those are per-vent or teaser prices, and the invoice once the tech is inside is almost always several times that. We post the whole-system number up front. Call (737) 727-2314 for a free estimate, and you’ll have a real range before we ever schedule a visit.
We Also Serve Cities Near Duvall
Our crews cover the whole Snoqualmie Valley corridor and the Eastside, including Sammamish, Monroe, Woodinville, and Redmond. If you’re outside Duvall proper, you can learn more about how we work across the area on our Air Duct Cleaning in Duvall page, or just call us and we’ll confirm your address.
Serving Duvall, WA - Our Local Coverage Area
We’re based in the Duvall area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Duvall
Every three to five years is right for most Duvall homes. Valley humidity, cottonwood season in late spring, and alder pollen in early spring all shorten that window, especially for homes with pets, carpet, or recent remodeling dust. If you can’t remember the last time it was done, a camera inspection will tell you in fifteen minutes. Call (737) 727-2314 and we’ll book one.
The flat price covers every supply and return register, the trunk lines, branch runs, air handler cabinet, blower wheel inspection, and the camera inspection before and after. No per-vent pricing, no add-on for taking the handler apart if the inspection says it’s needed. The written price you approve before we start is the price you pay.
No. A proper duct cleaning in Duvall is a scheduled job that takes hours, not an emergency call. We’ll find the next available slot that works for you and give you a live trackable arrival window so you’re not stuck waiting through a four-hour block. Most Duvall jobs are booked within a few days.
Yes. In Duvall, almost every home runs a heat pump, which means the air handler and both the supply and return sides are in constant use through wet and dry seasons alike. A furnace-only clean misses the return runs where valley pollen concentrates and skips the air handler where that same debris settles. We treat the whole system as one job, because in a heat-pump house, that’s what it is.
You’ll receive before-and-after photos of your own ducts, taken by our camera during the inspection and after the clean, sent to your phone. The photos show the interior of the trunk lines and branch runs, not stock images. That’s the Relay Standard on every job in Duvall, and it’s why our customers don’t have to wonder. Call (737) 727-2314 for a free estimate and we’ll walk you through exactly what to expect.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Duvall and the Snoqualmie Valley with transparent pricing and photographic proof on every job.




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