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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After
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Before
AfterFast, Reliable Air Duct Cleaning Across Kent
Air duct cleaning in Kent typically runs $350 – $650 for a full residential system and $800 – $2,400 for commercial buildings, with most jobs scheduled within a few days of your call. We dispatch from our Seattle office and serve Kent homeowners directly, from East Hill to Panther Lake to the Valley floor. If you’re smelling musty air each spring or noticing dust that won’t quit, call us at (361) 326-5060 for a free written estimate.
We’ve worked in Kent long enough to know the local housing stock: post-war ramblers with original sheet-metal ducts, 1980s split-levels with asbestos-wrapped joints, and 1990s tract homes with flexible runs that sag in the crawlspace. That variety matters because different duct types need different cleaning methods. Our Air Duct Cleaning team arrives with Rotobrush rotary systems, Nikro negative-air machines, and the agitation tools needed for whatever your Kent home has.
Why Hollis Air Duct Cleaning Is Kent’s Preferred Air Duct Cleaning Company
Kent sits in the Green River Valley, where damp marine air and winter flooding create some of the highest indoor humidity levels in the Puget Sound region. That moisture feeds mold and mildew in ductwork far more aggressively than in Seattle or Bellevue, making Kent duct cleaning as much about moisture control and microbial remediation as it is about dust removal. We’ve built our local reputation on recognizing that difference and treating it accordingly.
Our technicians follow The Garrison Code on every Kent job: arrive inside the quoted window, price in writing before touching equipment, complete the work by the book, and leave the site clean. Every technician is background-checked and uniformed, so 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, not a voicemail loop.
The 365-Day Done Right Promise backs every job in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiating, no runaround. We’ve operated this way since 2004 as part of the Garrison Partners family, and that standard hasn’t changed.
Air Duct Cleaning Services in Kent
Air Duct Cleaning Services in Kent cover the complete removal of dust, debris, microbial growth, and moisture residue from your home’s duct network, including supply runs, return runs, registers, and the main trunk lines. Most Kent homeowners need this service every 3 – 5 years, sooner if they notice musty odors, visible mold, or increased allergy symptoms. A typical residential full-system clean in Kent runs $350 – $650, depending on system size, accessibility, and whether crawlspace ductwork requires additional remediation.
Residential Duct Cleaning
Our residential service starts with a video inspection so you see what we see inside your ducts. We then seal the system and apply negative pressure using a HEPA-filtered Nikro unit while rotary brushes from Rotobrush agitate debris loose. For Kent’s older homes with sheet-metal ducts, we pay special attention to rusted seams and loose joints that can release debris back into airflow.
Commercial Duct Cleaning
Commercial systems in Kent’s retail and warehouse spaces often run larger trunk lines with heavier loading. We scale equipment accordingly, using Abatement Technologies filtration and multi-stage cleaning for buildings up to 50,000 square feet. Pricing starts around $800 and scales with system complexity.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
HVAC Duct Cleaning in Kent
HVAC Duct Cleaning in Kent addresses the entire heating and cooling distribution system, not just visible vents. Because Kent’s wet, mild winters and humid springs mean HVAC systems run less continuously than in hotter or colder climates, dust and biological growth settle in ducts during long off-cycles. The valley’s occasional flooding events can also introduce silt and moisture into crawlspace ductwork, requiring decontamination beyond routine cleaning. Expect $400 – $750 for most residential HVAC duct systems in Kent, with crawlspace remediation adding $150 – $400.
Supply and Return Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back. Both sides need cleaning, but returns typically carry more debris because they draw unfiltered air. In Kent homes with pets or recent remodeling, return ducts often show the heaviest loading. We clean both sides and verify airflow balance before finishing.
Video Inspection and Documentation
We run a camera through your system before and after cleaning. You get to see the difference, and we get a record of any structural issues like rust, sagging flexible duct, or water damage that cleaning alone won’t fix. This matters especially in Kent’s mid-century housing stock, where original ducts may need sealing or replacement recommendations.
Trusted Brands We Service in Kent
We carry and install filtration and cleaning equipment from Aprilaire, Abatement Technologies, Guardsman, and Rotobrush. For Kent customers, this means we stock common parts locally and can source less common items quickly through our Seattle office. If your system uses Honeywell media filters or Aprilaire whole-house purifiers, we service those in place and can recommend upgrades when your ductwork is clean enough to make them worth running. Fast turnaround matters here because a system left open after cleaning is a system collecting new debris.
Common Air Duct Cleaning Problems We See in Kent Homes
- Musty silt in East Hill and Panther Lake crawlspaces. Many 1960s – 70s homes in these neighborhoods have ductwork routed through unsealed crawlspaces that flood during heavy rain, leaving behind a musty, silt-like residue that standard vacuuming won’t remove. Technicians often have to sanitize and reseal duct runs after water events.
- Rust and loose joints in mid-century ramblers. Kent’s post-war housing boom left thousands of homes with original sheet-metal ducts prone to rust and asbestos-wrapped joints that can loosen over decades of thermal cycling. Cleaning without inspecting these first can release debris into living spaces.
- Sagging flexible duct in 1990s tract homes. Two-story homes built during Kent’s suburban expansion often have flexible duct runs that sag between supports, creating low spots where dust and moisture collect. Rotary brush cleaning restores airflow, but we also flag supports that need reinforcement.
- Microbial regrowth after fogging “sanitiser” treatments. Some competitors sell fogging as a quick fix for Kent’s humidity-driven mold issues. Fogging without source removal leaves dead mold and moisture in place, and regrowth typically returns within a season when humidity stays high.
Pricing for Air Duct Cleaning in Kent, WA
Here’s what Kent homeowners actually pay:
| Service | Typical Range |
|---|---|
| Residential full-system cleaning | $350 – $650 |
| HVAC duct cleaning with crawlspace access | $400 – $750 |
| Crawlspace duct remediation (silt, moisture) | $150 – $400 additional |
| Commercial system cleaning | $800 – $2,400 |
| Video inspection only | $125 – $200 |
What moves the price: system size (number of supply and return runs), accessibility (crawlspace vs. basement), contamination level (routine dust vs. flood residue requiring sanitization), and whether duct sealing is needed after cleaning. We write the price down before any work starts, and it does not move at the door. No per-vent pricing, no surprise add-ons. Call (361) 326-5060 for a free written estimate.
We Also Serve Cities Near Kent
Our crews work throughout south King County, including Kent, Renton, Auburn, Federal Way, and Maple Valley. Scheduling is coordinated from our Seattle office, with local technicians serving each area. If you’re outside Kent city limits but in the surrounding community, the same pricing structure and 365-Day Done Right Promise apply.
Serving Kent, WA - Our Local Coverage Area
We’re based in the Kent 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 Kent
Kent’s position in the Green River Valley traps damp marine air and flood moisture that pushes indoor humidity higher than Seattle or Bellevue, so duct runs here grow mold and mildew sooner during the long off-cycles of mild winters and humid springs. That makes Kent duct cleaning a moisture-control and microbial-remediation job, not just a dust job. Call (361) 326-5060 if you’re smelling musty air each spring.
Yes, and standard vacuuming alone won’t fix it. At a 1960s rambler off James Street in East Hill, our tech found the return duct running through an unsealed crawlspace that had taken on rain water, leaving a musty silt film on the sheet-metal and rusted seams. We set up negative pressure with a HEPA-filtered Nikro unit, used agitation tools to break the residue loose, then sanitized and resealed the duct run – the homeowner’s “musty smell every spring” complaint was gone. Call (361) 326-5060 for an inspection.
No, not as a standalone treatment and not without source removal first. Fogging kills surface mold but leaves dead spores and moisture in the duct. In Kent’s high-humidity environment, regrowth typically returns within a season. A genuine clean removes the source material, controls moisture, and then applies sanitization only where needed. We don’t sell fogging upsells to homeowners who haven’t had proper agitation cleaning first. Call (361) 326-5060 for an honest assessment of what your system actually needs.
NADCA, the National Air Duct Cleaners Association, sets the industry standard for source removal: put the system under negative pressure, mechanically agitate debris loose, and extract it with HEPA filtration. Any contractor claiming to “clean” ducts without these three steps is not following NADCA standards. We follow them on every Kent job, and we document before-and-after condition so you can verify the work. Call (361) 326-5060 to ask about our process.
Every 3 – 5 years for typical households, every 2 – 3 years if you have pets, allergies, or recent remodeling, and immediately after any flooding event that reaches crawlspace ductwork. Kent’s humidity means microbial growth can establish faster than in drier climates, so we recommend video inspection if you notice musty odors before the scheduled interval. Call (361) 326-5060 to schedule.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Kent since 2004.