Fast, Reliable Air Duct Cleaning Across Portland
Professional air duct cleaning in Portland typically runs $350–$850 for residential systems and is usually completed in a single visit with same-day scheduling available. We’re Landmark Air Duct Cleaning Service Washington, and our Air Duct Cleaning team makes the drive down I-5 from Seattle to Portland regularly — we know the 97242, 97250, 97252, and 97256 ZIP codes well, and we understand that Portland’s damp crawl spaces and historic housing stock demand a different approach than dry-climate markets.
Richard Anderson, our owner and lead technician, personally oversees every Portland job. We don’t rotate through crews or send salespeople who’ve never run a brush through ductwork. When you call (877) 335-1974, you’re speaking directly to the person who’ll be in your crawl space — and that’s a structural difference most multi-trade HVAC operations simply can’t replicate.
Why Landmark Air Duct Cleaning Service Washington Is Portland’s Preferred Air Duct Cleaning Company
We’ve earned 732 verified customer reviews averaging 4.9 stars — not from being the cheapest option, but from showing up with the right equipment and the right expertise for jobs other companies walk away from. Portland homeowners in Kenton, Raleigh Hills, and throughout the metro know that our 11 years of exclusive focus on air duct and indoor air quality services means we spot problems generalist HVAC techs miss entirely.
Our response time to Portland averages same-day or next-day availability, and we schedule around the parking constraints and narrow alley access that come with the city’s dense bungalow neighborhoods. We carry professional-grade Rotobrush and Nikro systems — the same equipment brands used by commercial restoration contractors — because Portland’s moisture-compromised ductwork demands agitation power that rental-grade machines can’t deliver.
Richard Anderson’s dual role as owner and lead technician means direct accountability on every Portland job. No dispatcher, no rotating subcontractor, no gap between what was promised and who shows up. That owner-led consistency is why property managers from West Haven to West Haven-Sylvan keep our number on file.
Our Air Duct Cleaning Services in Portland
Residential Duct Cleaning
Portland’s pre-1945 housing stock — Craftsman bungalows, foursquares, and Victorians in ZIP codes 97201 through 97210 — presents unique challenges. These homes received forced-air retrofits decades after construction, and their ducts are frequently undersized, irregularly routed through vented crawl spaces, and composed of aging galvanized sheet metal or degraded flex duct. Our residential cleaning protocol starts with a full system assessment, then uses Rotobrush mechanical agitation paired with HEPA containment to remove accumulated particulate without redistributing it through your living space.
Commercial Duct Cleaning
Portland’s commercial buildings — from converted industrial spaces in the Pearl District to medical offices near OHSU — require scheduled cleaning that doesn’t disrupt operations. We work after-hours and weekends, and our Nikro portable HEPA systems contain debris extraction so your staff isn’t breathing disturbed particulate the next business day. Richard Anderson coordinates directly with facility managers to map supply and return configurations before we arrive.
Supply Duct Cleaning
Supply ducts deliver conditioned air to your rooms, but in Portland’s damp climate they’re also the pathway for mold spores and wildfire ash particulate. Our supply duct service includes mechanical brushing of each branch line, followed by negative-air HEPA vacuuming at the trunk connection. In SE Portland’s bungalow neighborhoods, we regularly find supply lines partially blocked by collapsed flex sections — a failure mode that dry-climate technicians rarely encounter.
Return Duct Cleaning
Return ducts pull air back to your HVAC unit, making them the collection point for household dust, pet dander, and — in Portland’s case — fine particulate from severe wildfire smoke events like 2017 and 2020. Return duct cleaning is where we most often find heavy loading that restricts airflow and forces your system to work harder. Our return cleaning includes grille and register removal, trunk line brushing, and filter housing sanitization.
Full System Cleaning
This is our most comprehensive Portland service, and it’s what we recommend for any home with crawl-space ductwork showing moisture damage. Full system cleaning covers supply and return branches, trunk lines, plenums, and accessible boots — plus video inspection to document condition before and after. For Portland’s 1900s-era housing stock, this is the only way to catch collapsed sections and mold colonization that hidden damage hides from surface inspection.
Video Inspection
We consider video inspection non-optional for Portland’s pre-1960 homes. Our camera systems navigate irregular duct routing to reveal collapse points, standing water, and active mold growth that visual access can’t confirm. After the 2020 wildfire smoke events, we also use video inspection to document ash loading in systems that recirculated particulate-laden air for days. The footage belongs to you — we provide it with every inspection.
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.
Trusted Brands We Service in Portland
We clean and service ductwork connected to air quality systems from Honeywell, Aprilaire, Abatement Technologies, and Guardsman — brands we specify and install when Portland homeowners need filtration or sanitizing upgrades after cleaning. Our Rotobrush and Nikro cleaning equipment is professional-grade, not rental or consumer-tier, and we stock compatible antimicrobial treatments and sealants for fast turnaround on Portland jobs. When your 1920s bungalow needs more than cleaning — when it needs a complete air quality strategy — we specify the same equipment brands used in commercial restoration and healthcare environments.
Common Air Duct Cleaning Problems We See in Portland Homes
- Mold regrowth within 30–60 days after inadequate treatment. Portland’s 144 annual days of measurable rainfall and persistent marine-layer humidity mean crawl spaces never fully dry. When technicians skip EPA-registered antimicrobial application or fail to address the moisture source, mold recolonizes almost immediately in SE and N Portland’s vented crawl spaces.
- Collapsed flex duct going undetected without video inspection. The 1970s–80s flex duct common in Portland retrofits degrades from moisture exposure in ways that aren’t visible from registers. We’ve found completely blocked sections that homeowners lived with for years, assuming their HVAC was simply undersized for the house.
- Recontamination from unchanged crawl-space conditions. Cleaning ducts without addressing unsealed vents, groundwater intrusion, or missing vapor barriers is temporary work in Portland. We evaluate the full moisture picture and recommend dehumidifiers or encapsulation when the environment demands it.
- Wildfire ash loading from 2017 and 2020 smoke events. Portland’s position downwind of Oregon’s timber country created particulate exposure that dry-climate cities simply don’t experience. Fine ash penetrates standard filtration and accumulates in duct corners and trunk connections, requiring mechanical agitation to dislodge.
Pricing for Air Duct Cleaning in Portland, OR
A typical residential duct cleaning in Portland runs $350–$650 for homes under 2,500 square feet with accessible ductwork. Full system cleaning with video inspection ranges $550–$850. Commercial duct cleaning starts around $800 and scales with system complexity. Several factors push Portland jobs toward the higher end: crawl-space access difficulty in pre-1945 homes, active mold requiring antimicrobial treatment ($150–$300 additional), and collapsed sections needing repair access.
We don’t quote over email without understanding your specific system — but we do provide free, no-obligation estimates in Portland, and Richard Anderson personally assesses every job before work begins. Call (877) 335-1974 to schedule yours.
We Also Serve Cities Near Portland
Our service radius extends throughout the Portland metro, including Kenton with its industrial-to-residential conversions, Raleigh Hills and its mid-century ranch stock, West Haven, and West Haven-Sylvan — each with distinct duct configurations and moisture profiles we’ve documented across hundreds of jobs. The same owner-led service, same equipment, same direct accountability.
Serving Portland, OR — Our Local Coverage Area
We’re based in the Portland 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 — Air Duct Cleaning in Portland
Yes — Portland’s persistent humidity creates active mold growth in crawl-space ductwork that dry-climate cities rarely face, making cleaning and moisture assessment more time-sensitive for pre-1960 homes. Our crew recently serviced a 1920s Craftsman bungalow on SE Belmont Street in 97202. The crawl-space flex duct from the 1970s was both mold-coated and partially collapsed from moisture damage. We used Rotobrush agitation and HEPA vacuuming, then applied an EPA-registered antimicrobial treatment to the accessible ductwork, preventing further microbial spread. Call (877) 335-1974 for a free estimate — we’ll evaluate your crawl-space conditions alongside your ducts.
Video inspection reveals collapsed flex duct, standing water, and mold colonization hidden in irregular crawl-space routing that visual inspection from registers cannot access. In SE Portland’s bungalow-dense blocks, technicians regularly encounter flex-duct sections installed in the 1970s–80s that are simultaneously coated in mold and partially collapsed from moisture-related material breakdown — a combination almost unheard of in drier Oregon markets like Bend or Medford but routine in Portland’s crawl-space duct runs, where humidity never fully retreats. Without video, you’re paying for cleaning while blocked sections continue restricting airflow. Call (877) 335-1974 to schedule inspection with your cleaning.
Cleaning alone won’t stop mold regrowth if the underlying moisture source remains unaddressed — antimicrobial treatment and crawl-space humidity control are essential in Portland’s climate. We’ve seen mold return within 30–60 days when technicians skipped treatment or failed to identify unsealed vents, groundwater intrusion, or missing vapor barriers. Our full system cleaning includes moisture-source assessment and recommendations for dehumidifiers or encapsulation when your crawl space demands it. Call (877) 335-1974 and we’ll evaluate the complete picture, not just the ducts.
Portland’s combination of chronic dampness and downwind exposure to Oregon timber-country wildfires creates unique dual contamination — mold from humidity plus fine ash particulate from severe smoke events in 2017 and 2020. Unlike cities with only one challenge, Portland ducts frequently harbor both biological and combustion particulate loading, requiring cleaning protocols that address both contaminant types without cross-contaminating living spaces during the process. Our HEPA-contained extraction and mechanical agitation are specifically configured for this dual loading. Call (877) 335-1974 to assess your system’s wildfire exposure.
Yes — these are our specialty. Portland’s inner ZIP codes are dominated by 1905–1945 homes that received forced-air retrofits decades after construction, with ducts frequently undersized, irregularly routed, and composed of aging materials. We understand the access constraints of these systems and carry equipment sized for tight crawl spaces and basement cavities. Richard Anderson personally evaluates each retrofit system for structural integrity before cleaning, and we document condition with video so you understand what you’re working with. Call (877) 335-1974 for an estimate on your historic Portland home.
Ready to address your Portland home’s ductwork with a specialist who understands what this climate and housing stock demand? Call (877) 335-1974 for a free estimate. Richard Anderson, our owner and lead technician, will assess your system personally — same-day and next-day appointments available across Portland and surrounding communities.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Portland since 2014.