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 Spanaway
Air duct cleaning in Spanaway typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. Our crews dispatch from the Seattle office and carry the same Rotobrush and Nikro equipment we use on commercial jobs throughout Pierce County. Call (361) 326-5060 for a written estimate before any work starts.
We’ve worked in Spanaway long enough to know the difference between a tract house off 176th Street and a manufactured home near Spanaway Lake. The duct problems aren’t the same, and the fix shouldn’t be either. That’s why our Air Duct Cleaning team starts every job with a video inspection, not a sales pitch.
Why Hollis Air Duct Cleaning Is Spanaway’s Preferred Air Duct Cleaning Company
Hollis has been part of the Garrison Partners family since 2004. We don’t compete on coupon prices that jump at the door. We compete on showing up inside the window, pricing in writing, and leaving the site clean. That’s The Garrison Standard, and it’s how we operate on every job in Spanaway.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday.
Every job carries the 365-Day Done Right Promise in writing. If the work fails within a year, we come back and make it right at no charge, including a free second visit. Not every competitor in the Spanaway market puts that in writing.
We know the local roads, the local housing stock, and the local climate patterns that drive duct contamination here. That matters when you’re deciding whether a musty smell is a quick fix or a symptom of moisture trapped in sagging flex duct.
Vent Cleaning in Spanaway
Vent cleaning in Spanaway means more than brushing off a register cover. In this market, supply and return vents collect Douglas Fir pollen through spring and summer, and the marine humidity can bond that debris to interior vent walls where a damp cloth won’t reach. We remove each vent, clean the boot and first few feet of duct behind it with rotary agitation, and reinstall everything properly sealed.
Most Spanaway vent cleaning jobs run $120 – $220 when done as standalone service, or they’re included in a full system cleaning. Homes near the 98387 ZIP with heavy tree cover or near Mt. Rainier’s ash fall paths typically need more frequent attention.
Supply Vent Cleaning
Supply vents push conditioned air into your rooms. When they’re clogged with pollen or dust, your system runs longer and your bills climb. We clean the full boot, not just the visible grille.
Return Vent Cleaning
Return vents pull air back to the handler. They’re your home’s intake lungs, and in Spanaway’s pollen-heavy seasons, they load up fast. A blocked return strains the blower motor and recirculates debris through the system.
Air Duct Repair in Spanaway
Air Duct Repair in Spanaway addresses what cleaning alone can’t fix: sagging flex duct, crushed runs behind drywall, disconnected joints, and moisture damage from condensation in crawlspaces and attics. Most repairs here run $200 – $500 for localized fixes, with full duct replacement in a manufactured home reaching $1,500 – $3,200 depending on access and linear footage.
The housing stock here tells the story. Manufactured homes from the 1970s – 1990s use flex duct that degrades faster than hard pipe. Tract builds from the 1990s – 2000s often have flex runs crushed during insulation upgrades or chewed by rodents in the crawlspace. We find the damage with a camera, show you the footage, and quote the repair in writing before touching anything.
Flex Duct Replacement
Sagging flex duct in a damp Spanaway crawlspace is a moisture trap. We replace it with properly supported runs, sealed with mastic, not tape that peels in humidity.
Duct Sealing and Mastic Application
Leaky joints pull crawlspace air into your supply. We seal with duct mastic, a brush-applied compound that stays flexible and airtight where tape fails. This is standard on every repair we do in Spanaway’s older housing stock.
Trusted Brands We Service in Spanaway
We run professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies on every Spanaway job. Rotobrush rotary brush systems scrub duct walls where debris sticks. Nikro negative-air machines maintain suction so contaminants exit the home, not your living room. For filtration upgrades, we stock Honeywell, Aprilaire, and Guardsman products with fast turnaround from our Seattle supply chain. We don’t use hardware-store vacuums with a long hose. The tools matter because the job is source removal, not redistribution.
Common Air Duct Cleaning Problems We See in Spanaway Homes
- Musty odors after first fall rain. Spanaway’s manufactured homes use belly-board insulation that traps ground moisture under the floor. When the October rains hit, that moisture wicks into sagging flex duct runs and feeds microbial growth. Standard vacuuming won’t fix it; the duct needs physical agitation, negative-air extraction, and often section replacement.
- Douglas Fir pollen and Mt. Rainier ash in outdoor air intakes. The Rain Shadow transition zone pulls specific particulates into ductwork that Seattle’s urban core doesn’t see in the same concentrations. These particles are abrasive and accumulate in blower motors and evaporator coils, reducing efficiency before they ever reach a filter.
- Condensation in unconditioned crawlspaces and attics. The marine climate keeps humidity high year-round. Ducts in vented crawlspaces sweat against cold metal or flex duct, creating standing water that standard cleaning ignores. We inspect for this with cameras and address it in our scope.
- Crushed or disconnected flex duct in 1990s – 2000s tract builds. These homes often have flex runs routed through tight wall cavities. Insulation crews, plumbing repairs, or simple settling can kink or detach them. Without camera inspection, you’re paying to clean duct that isn’t even connected to your system.
Pricing for Air Duct Cleaning in Spanaway, WA
Full residential air duct cleaning in Spanaway runs $350 – $650 for most homes, with manufactured homes on the lower end of that range and larger tract homes or two-system properties reaching $750 – $950. Commercial duct cleaning starts around $800 and scales with linear footage and access difficulty.
What moves the price: system size, number of supply and return vents, accessibility of the air handler, and whether we find damage requiring repair. We quote one flat price per system, agreed in writing before work starts. No per-vent add-ons, no “surprise” findings that inflate the bill once the van is in your driveway.
We provide before-and-after photos of your own ducts, not stock images. You’ll see what was there and what we removed. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Spanaway
Our crews cover Graham, Lakewood, Puyallup, and Orting with the same equipment and the same written guarantee. If you’re in one of these areas, Air Duct Cleaning in Spanaway is still coordinated through our local dispatch, and pricing stays consistent across the service area.
Serving Spanaway, WA - Our Local Coverage Area
We’re based in the Spanaway 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 Spanaway
The musty smell appears because moisture trapped in belly-board insulation under manufactured homes gets reactivated when the October rains saturate the ground. That moisture wicks into sagging flex duct runs in the crawlspace, feeding microbial growth that dries out in summer and blooms again in fall. A genuine source-removal clean with agitation and negative-air extraction removes the biological material; fogging alone just masks the odor until the next rain cycle. Call (361) 326-5060 if you’re noticing this pattern, and we’ll inspect with a camera before quoting.
No. Fogging deposits a chemical mist on duct surfaces but does not remove the pollen, dust, or microbial growth that causes odors and restricts airflow. In Spanaway’s damp crawlspaces, that mist can actually add moisture to an already wet environment. We don’t sell fogging upsells. Our method is physical agitation with rotary brushes under continuous negative-air vacuum, which extracts debris rather than coating it. Call (361) 326-5060 for an estimate on real source removal.
Spanaway sits in a humidity and particulate zone that differs from both Seattle’s urban core and Tacoma’s direct marine exposure. We see higher Douglas Fir pollen loads and occasional Mt. Rainier ash infiltration here, plus the specific moisture patterns of manufactured-home belly-board construction that Tacoma’s older basements and concrete foundations don’t replicate. Our cleaning protocols account for these local conditions, not a generic Pacific Northwest template. Call (361) 326-5060 to discuss your home’s specific setup.
A real cleaning includes video inspection of every run, rotary brush agitation of the full duct length, negative-air extraction at the air handler, and before-and-after documentation. For 1990s flex duct, we specifically check for crushed sections behind drywall, disconnected boots, and moisture staining that indicates condensation traps. We quote any needed repairs in writing before starting work. Call (361) 326-5060 to schedule an inspection.
Manufactured homes in Spanaway typically need cleaning every 3 – 5 years, sooner if you have pets, allergies, or notice musty odors after rain. The flex duct and belly-board construction here degrades faster than hard pipe, and the moisture traps create conditions that standard filters can’t address. We inspect with a camera and recommend frequency based on what we find, not a calendar sales pitch. Call (361) 326-5060 for a free evaluation.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Spanaway since 2004 as part of the Garrison Partners family.




Before
After
Before
After
Before
After