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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AfterFast, Reliable Air Duct Cleaning Across Federal Way
Air duct cleaning in Federal Way, WA typically runs $350 – $650 for a whole-home system, with most jobs scheduled within a week and completed in a single visit. Our crews dispatch from the Seattle office and serve Federal Way neighborhoods directly, carrying Rotobrush rotary systems and Nikro negative-air machines built for the moisture problems this city’s marine climate creates.
We know Federal Way’s housing stock. The 1960s ramblers near Steel Lake with their original galvanized ductwork. The split-levels off Pacific Highway South. The newer townhome clusters with tighter runs that trap condensation just as badly. Our Air Duct Cleaning team has cleaned and repaired ducts in all of them. We arrive inside the quoted window, write the price before we touch anything, and leave the site clean. That’s The Garrison Standard. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Federal Way’s Preferred Air Duct Cleaning Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. In Federal Way, that track record matters because this city’s duct problems are specific. Marine air. Persistent dampness. Undersized, uninsulated runs in older homes and complex tight systems in newer builds. We’ve seen what works and what wastes money.
Our technicians are background-checked and uniformed. You know who walks in before they arrive. Phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops. No callback queues.
Every job gets a written price before work starts. The number does not move at the door. Every job is covered by our 365-Day Done Right Promise. If the work fails within a year, we come back and make it right at no charge, including a free second visit. That’s not a slogan. It’s in writing on every invoice.
We serve Federal Way from our Seattle coordination office, with crews who know the difference between a 1972 rambler off 320th Street and a 2005 townhome near the Commons. Local knowledge means we bring the right equipment and don’t waste time diagnosing what we’ve already seen.
Vent Cleaning in Federal Way
Vent cleaning in Federal Way addresses the supply and return registers where dust, pollen, and moisture-borne debris first collect, especially in tree-heavy neighborhoods like those around Dash Point and the West Campus area where cottonwood fluff and fir needles enter attic vents and settle in duct boots. A typical vent cleaning job in Federal Way runs $120 – $220 when done as a standalone service, or it is included in a full system cleaning. We remove each register, clean the boot and first few feet of duct with rotary brushes and HEPA-contained vacuums, and inspect for moisture staining that indicates a deeper problem.
When Registers Tell a Bigger Story
Dark staining around a vent in Federal Way usually means condensation is forming behind the register, not just dust accumulating on it. Our techs check for this every time. If we see it, we flag the insulated run or the trunk connection before the moisture feeds mold growth you can smell but not yet see.
Supply Versus Return Vent Work
Supply vents push conditioned air into rooms and tend to collect finer dust. Return vents pull air back and attract larger debris, pet hair, and the pollen that Federal Way’s dense tree cover generates. We clean both, but the approach differs. Returns need stronger agitation. Supplies need finer filtration so we don’t just redistribute particles.
Air Duct Repair in Federal Way
Air Duct Repair in Federal Way fixes the disconnected, crushed, or corroded ductwork that cleaning alone cannot solve, particularly in the 1960s – 1990s housing stock where galvanized steel has rusted through at seams or early flexible duct has sagged and torn at bends. Typical air duct repair in Federal Way ranges from $180 for a simple reconnection to $550+ for replacing a degraded trunk section, with most falling between $250 – $400. We write the price after inspection, before any cutting or sealing begins.
Condensation Damage in Older Systems
Federal Way’s damp winters rust galvanized seams from the inside out. We’ve opened ceilings in homes near Enchanted Parkway to find trunk lines where the bottom three feet have no structural integrity left. Repair means cutting out the failed section, replacing with properly insulated flex or sheet metal, and sealing with mastic, not tape that will fail again.
Tight Townhome Duct Runs
Newer Federal Way multi-family builds use smaller diameter flex routed through structural chases. When these crush or kink, airflow drops and the system overworks. We reroute where possible, replace where necessary, and always verify static pressure after repair so the homeowner knows the system breathes properly again.
Trusted Brands We Service in Federal Way
Our Federal Way crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, with filtration products from Honeywell and Aprilaire. We don’t use hardware-store shop vacs with a brush taped to the hose. The Nikro negative-air machines we deploy create true containment, pulling debris out of your ductwork under controlled suction rather than blowing it through your house. For homes with integrated electronic air cleaners, we stock Honeywell and Aprilaire media filters and can replace them during the same visit. Parts are held at our Seattle coordination point, so Federal Way customers aren’t waiting on cross-country shipping when a repair needs a specific collar, boot, or filtration component.
Common Air Duct Cleaning Problems We See in Federal Way Homes
- Standing moisture in uninsulated galvanized trunks. The 1960s – 70s ramblers near Steel Lake were built with ductwork that has little or no wrap, and Federal Way’s marine air keeps metal surfaces below dew point for months. We find water pooling in low runs that crews without cameras never see.
- Visible mold growth at register boots. Musty smells that homeowners blame on carpets often originate at the duct boot, where cold supply air meets warm humid wall cavities. Cleaning the boot helps; insulating it properly stops recurrence.
- Debris-choked returns in tree-heavy neighborhoods. Homes near Dash Point and the West Hill area pull outdoor air through attic vents and crawl spaces. Returns clog faster here than in open prairie settings, restricting airflow and forcing the blower to overwork.
- Fogging upsells that leave moisture sources untouched. We’ve been called to Federal Way homes six months after a “sanitizing” treatment where the musty smell returned because the crew misted chemicals over wet ducts without removing the growth or fixing the condensation.
Pricing for Air Duct Cleaning in Federal Way, WA
Whole-home air duct cleaning in Federal Way typically runs $350 – $650 for a single-system residential job, depending on system size, accessibility, and whether the air handler and blower require cleaning. A full system cleaning with video inspection, register removal, trunk line agitation, and air handler service usually falls in the $450 – $550 range for a 1,500 – 2,500 square foot home. Commercial duct cleaning for Federal Way’s retail and office spaces starts around $800 and scales with linear footage and HVAC unit count.
What moves the price: homes with crawl space or attic ductwork that requires extra access time; systems with significant mold or moisture damage needing source removal beyond standard cleaning; and multi-zone systems with more than one air handler. We do not quote per-vent pricing. That structure invites bait-and-switch. We price per system, in writing, before work starts.
Every estimate is free. Call (361) 326-5060 and we’ll schedule a walkthrough.
We Also Serve Cities Near Federal Way
Our crews work throughout south King County, including Air Duct Cleaning in Federal Way and surrounding communities. We regularly schedule jobs in Auburn, Pacific, Milton, and Kent, often routing same-day neighboring appointments to keep travel time down and arrival windows tight. If you’re in these areas and seeing the same moisture patterns, the same housing stock issues, or the same musty-duct symptoms, we apply the same inspection standards and written pricing.
Serving Federal Way, WA - Our Local Coverage Area
We’re based in the Federal Way 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 Federal Way
Federal Way’s marine west coast climate keeps dew points in the 44 – 48°F range through much of the wet season, and the 1960s – 70s homes near Steel Lake have original ductwork with minimal insulation. That combination means metal duct surfaces stay below dew point for months, condensation forms, and mildew grows where homeowners can smell it before they can see it. Homes in drier eastern suburbs with better-insulated or newer ductwork don’t face the same sustained moisture load. Call (361) 326-5060 for an inspection if you’re catching musty odors near registers.
No. Fogging treats the symptom, not the source. In Federal Way’s damp climate, a sanitizer misted into wet ducts kills surface growth temporarily but leaves the moisture and dead material in place. The next stretch of marine air reactivates the problem. We do source removal with agitation and negative-air HEPA extraction, then address the condensation cause. Call (361) 326-5060 for a genuine fix.
It starts with a camera inspection of the trunk line, because original galvanized duct in these homes often hides standing water or rust. We set up negative-air containment at the air handler, remove and clean every register and boot, agitate the trunk and branch lines with rotary brushes, and clean the blower assembly and coil cabinet. We don’t fog. We don’t seal without inspecting. And we flag uninsulated runs for Duct Sealing in Federal Way so the moisture problem doesn’t regenerate. Call (361) 326-5060 to schedule.
Federal Way’s dense fir and cottonwood canopy produces debris loads that concentrate at registers and return grilles, especially in spring and fall. Vent cleaning as a standalone service clears the visible collection points, improves airflow at the room level, and lets us inspect boot conditions without the full-system commitment. For homes that had a full cleaning two years ago but are seeing reduced airflow or allergy symptoms, vent cleaning often solves the problem without redundant trunk work. Call (361) 326-5060 to discuss whether your system needs full service or targeted vent work.
Consider repair when cleaning has been done within two years but airflow remains poor, rooms stay unevenly heated or cooled, or musty smells return within months. In Federal Way, these patterns usually mean disconnected flex, crushed runs from cable or plumbing work, or rusted galvanized seams that leak conditioned air into attics or crawl spaces. Another cleaning won’t seal a gap. We inspect with cameras, write the repair price, and guarantee the fix for 365 days. Call (361) 326-5060 for an honest assessment.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Federal Way and south King County since 2004.