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.
Carrier Air Duct Cleaning in Seattle, CA | Hollis Air Duct Cleaning
Carrier air duct cleaning in Seattle typically runs $380 to $720 for a full system, depending on home size and duct condition, and most jobs finish in a single visit. We’re an independent Carrier service provider, not a manufacturer-authorized shop, which means we focus on what’s actually moving through your ducts instead of pushing warranty paperwork. Seattle’s damp climate turns ordinary dust into a moisture problem fast, and Carrier systems here need cleaning that addresses condensation and mold, not just debris. Call (361) 326-5060 for a written quote before any work starts.
Why Seattle Residents Choose Us for Carrier Service
We’ve spent years inside Seattle’s pre-1940 Craftsman bungalows, mid-century ranches, and newer infill townhomes, and the Carrier equipment in those houses runs into the same wet-crawlspace problems over and over. Roy Castellanos, who runs Hollis Air Duct Cleaning, came up through the sheet metal and air conditioning program at Los Angeles Trade-Technical College and spent years doing hands-on duct work before this company. So when we open a Carrier air handler in a Seattle crawlspace, we already know what we’re likely to find: sagging flex duct, condensation pooling, and seals that failed years ago. Clean ducts, straight answers – that’s the whole job. Every visit comes with a written price before work begins, background-checked uniformed technicians, and the 365-Day Done Right Promise: if it’s not done right, we return and fix it at no charge.
We understand Carrier’s line from the Carrier sales & service side of the trade, including WeatherMaker furnaces, Performance series gas furnaces, Infinity heat pumps, and Comfort air handlers. But we also know what Seattle’s 150-plus rainy days do to that equipment once it’s installed. Our independence means no warranty games and no pressure to replace a system that just needs its ductwork cleaned and sealed properly.
Common Carrier Air Duct Cleaning Problems We Solve in Seattle
- Sagging flex duct holding standing water. In Seattle crawlspaces with poor drainage, flexible duct runs on Carrier systems sag and collect water. That water breeds mold and pushes a musty smell through every register. We inspect with video, find the low spots, and either re-support, clean, or replace the affected sections.
- Condensation inside ducts on heat pump hybrids. Seattle’s love affair with heat pumps means many homes now run cooler, more humid air through ductwork originally sized for a gas furnace. That temperature drop creates condensation inside the ducts, which feeds mildew. Carrier Infinity heat pump owners see this often. Cleaning alone won’t fix it; the ducts need sealing and insulation work too.
- Undersized, leaky original ductwork in pre-1940 homes. Craftsman bungalows in Seattle’s older neighborhoods often have original Carrier duct runs that are too small for modern air handlers. Leaky seams pull crawlspace air into the system and strain the blower. We seal what’s salvageable and give you a straight repair-vs-replace assessment on what isn’t.
- Deteriorating asbestos tape on vintage ducts. Many mid-century Seattle homes have Carrier ducts wrapped in asbestos tape that’s now crumbling in damp attics. We don’t disturb it during cleaning; we identify it, tell you what’s there, and recommend a licensed abatement contractor if removal is needed before sealing.
- Mold growth from standing water in crawlspaces. A 1920s Craftsman in Ballard taught us this one directly. The homeowner’s Carrier WeatherMaker furnace was delivering musty air. Our video inspection found sagging flex duct full of standing water and mold. We cleaned, sealed, replaced the damage, and installed a drainage solution. That’s a Seattle-specific failure mode we see regularly.
Carrier Service in Seattle: What Local Conditions Mean for Your Equipment
Here’s the thing about Seattle that changes how Carrier duct cleaning works here: the city gets over 150 rainy days a year, and a large share of the housing stock sits over dirt crawlspaces that never really dry out. That means Carrier ductwork in Seattle collects standing water in ways you won’t see in a drier city 20 miles east. Flexible duct sags under its own weight, water pools in the low points, and within a season you have mold growing inside the system. So when a Seattle homeowner calls about a musty smell coming from their Carrier registers, we don’t start with brushes. We start with a video inspection and moisture mapping to find exactly where the water is entering and pooling. In a damp Ballard crawlspace or a Ravenna attic, that’s the difference between a cleaning that lasts and one that fails again before next winter. Carrier owners in this city aren’t dealing with a dust problem; they’re dealing with a water problem that happens to live inside their ducts.
Carrier Models & Products We Service in Seattle
We clean and seal ductwork attached to Carrier Performance series gas furnaces, Infinity series heat pumps, Comfort series air handlers, and WeatherMaker series systems throughout Seattle service area homes. For critical components like blower motors and control boards, we use OEM Carrier parts when available. For duct sealing mastic, insulation, and flex duct replacement, we carry professional-grade aftermarket materials that often outperform OEM at a better price. We stock common sealing and insulation products locally so Seattle jobs don’t wait on cross-country shipping. Every job includes a video inspection before cleaning and before-and-after photos of the actual ducts you own, not stock images from a brochure.
Carrier Service Pricing in Seattle
What should Carrier air duct cleaning cost in Seattle? For most homes, you’re looking at $380 to $720 for a full system cleaning, with the final number depending on square footage, number of returns, and how much of the ductwork is accessible. Homes with extensive mold or sagging duct replacement will run higher, but we’ll show you the written line-item price before we touch anything. A free estimate includes the video inspection, so you see what we see. Duct sealing adds $150 to $400 on average, depending on how many linear feet need mastic and tape work. No per-vent pricing, no coupon bait. Call (361) 326-5060 and we’ll give you a flat price for your system in writing.
Serving Seattle, WA - Our Local Coverage Area
We’re based in the Seattle 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 – Carrier Air Duct Cleaning in Seattle
Seattle’s 150-plus rainy days and high year-round humidity keep crawlspaces and attics damp for months at a time. Carrier ductwork in those spaces stays cool and wet, and mold spores have everything they need to grow. Drier climates don’t sustain that moisture level, which is why mold inside ducts is a Seattle-specific problem we treat as the primary reason to clean here. If you smell must when the blower kicks on, call (361) 326-5060.
Yes. We use negative-air machines and rotary brush systems sized for residential Carrier ductwork, not hardware-store gear. The process pulls loosened debris out under vacuum rather than pushing it into your living space. Heat pump systems run cooler air than furnaces, so we pay extra attention to condensation points and seal any areas where moisture is collecting. Your Infinity system gets a cleaning that respects its design, not a one-size-fits-all blast.
It changes everything. Ductwork running through a damp Seattle crawlspace is going to have moisture problems that a dry-basement home never sees. We inspect the full run with video before cleaning, find any low spots holding water, and address those first. Cleaning ducts without fixing the water source means the mold comes back. We show you the video so you know exactly what we found and what we did about it.
In Seattle’s climate, we recommend every 3 to 5 years for most Carrier systems, but homes with damp crawlspaces or visible mold should be inspected sooner. If you’ve had water intrusion, a remodel, or pets, the interval shortens. The easiest way to know is a video inspection: if there’s standing water, visible mold, or more than a thin layer of dust, it’s time. Call (361) 326-5060 and we’ll look for free.
For critical mechanical components like blower motors and control boards, we use OEM Carrier parts when they’re available. For duct sealing, insulation, and replacement flex runs, we use professional-grade aftermarket materials that often hold up better in Seattle’s damp crawlspaces than the originals. We’ll always tell you which is which and why, before the work starts.
Service Areas Near Seattle
From our base serving the Seattle service area, we run jobs across the metro and beyond. We handle Carrier duct cleaning for homeowners in Bellevue, Kirkland, Redmond, and Everett regularly. For Carrier owners outside Washington, see our Carrier service in Nashville-Davidson page or our Carrier service in Las Vegas page for details on coverage in those cities.
Book Your Carrier Service in Seattle Today
We show up inside the quoted window, put the price in writing before we start, and stand behind the work for a full year. If it’s not right, we come back free. Call (361) 326-5060 for a free estimate with video inspection. Roy and the team know Seattle ductwork, and we’ll tell you straight what yours needs.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Seattle since 2004.




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