Fast, Reliable Air Duct Cleaning Across Gladstone
Air duct cleaning in Gladstone typically runs $350–$650 for a full residential system, with most jobs completed in a single visit and video inspection included. We’re familiar with the river-bottom neighborhoods off River Road and the post-war ranch homes throughout the 97027 zip code — Richard Anderson and our crew make the trip from the Seattle area with scheduling that respects your time, not ours. Call (877) 335-1974 for a free estimate and we’ll give you an honest arrival window.

Gladstone’s not a generic Portland suburb. The confluence of the Clackamas and Willamette Rivers traps moisture in crawl spaces and duct runs that hillside homes in West Linn simply don’t experience. We’ve learned that lesson across 11 years of owner-led work — Richard Anderson runs the equipment personally on every job, and that hands-on accountability matters when you’re dealing with biological contamination inside someone’s walls.
Why Landmark Air Duct Cleaning Service Washington Is Gladstone’s Preferred Air Duct Cleaning Company
Our Air Duct Cleaning team has built a reputation in the Portland metro by staying in our lane — air ducts, dryer vents, and indoor air quality, period. We’re not an HVAC company padding revenue with a sideline service. That specialist focus shows in our numbers: 732 verified reviews averaging 4.9 stars, earned one job at a time with Richard Anderson on the equipment.
Gladstone customers specifically mention the difference owner-led service makes. Richard doesn’t delegate to rotating crews — he’s the lead technician who inspects, cleans, and seals your system. In a city where crawl-space ductwork failures are common, that continuity matters. You get the same eyes on your system from quote through completion.
Response time to Gladstone runs same-week for standard bookings, with emergency slots available when mold or water contamination creates immediate air quality concerns. We know the local geography: the low-lying streets near the Clackamas River corridor, the 1970s subdivisions off Gladstone Street, the ranch homes with original galvanized duct near Jennings Lodge. That local knowledge speeds diagnosis and avoids the “we’ll figure it out when we get there” approach that wastes your afternoon.
Our Air Duct Cleaning Services in Gladstone
Residential Duct Cleaning
Gladstone’s housing stock — predominantly post-WWII ranches and bungalows built from the late 1940s through the 1970s — presents a specific challenge. Many of these homes still run original galvanized or early flexible duct systems that were never designed to be sealed against moisture. Our residential cleaning protocol starts with a video inspection to map joint integrity and moisture intrusion points, then uses Rotobrush HEPA equipment to remove biological contamination without damaging aging duct walls. We clean the full supply and return network, not just what’s accessible from the registers.
Commercial Duct Cleaning
Commercial properties along McLoughlin Boulevard and the small business corridors near the Gladstone city center need scheduled cleaning that doesn’t disrupt operations. We’ve worked with property managers who need after-hours service and documentation for tenant health compliance. Our Nikro commercial systems handle larger CFM volumes, and Richard Anderson personally verifies post-cleaning airflow metrics before signing off.
Supply Duct Cleaning
Supply runs in Gladstone homes often suffer from the worst moisture damage because they terminate at floor registers in river-bottom crawl spaces. Cold, saturated air channels into these low points during fall and winter, producing persistent valley fog and humidity that hillside communities avoid. We inspect supply trunks for sagging flex sections that pool condensation, clean with negative-air containment to prevent cross-contamination, and flag sections requiring repair or replacement.
Return Duct Cleaning
Return ducts pull air from your living space back to the handler — meaning any mold or mildew in these lines circulates directly through your HVAC system. In Gladstone’s damp microclimate, return plenums in crawl spaces are particularly vulnerable to biological growth. Our return cleaning includes register-level HEPA vacuuming, trunk line mechanical brushing, and sanitizer application using products from Honeywell and Aprilaire where appropriate.
Full System Cleaning
This is our most requested service in Gladstone for good reason. A full system cleaning addresses supply, return, trunk lines, plenums, and the air handler cabinet as one integrated unit. In river-bottom homes where moisture has compromised multiple components, partial cleaning often leaves recontamination pathways open. We bundle video inspection, mechanical agitation, HEPA extraction, and joint sealing into one visit — one trip, one accountable technician, one invoice.

Video Inspection
Before we touch anything, we show you what we’re dealing with. Our video inspection service feeds a high-resolution camera through your duct network, capturing mold blooms, moisture stains, debris accumulation, and structural damage. For Gladstone homeowners who’ve been told “your ducts are fine” by generalist HVAC techs who never looked inside, this documentation is often revelatory. We archive the footage and provide a summary of recommended work with line-item pricing.
What happens when you call
- 1
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 Gladstone
We run professional-grade Rotobrush and Nikro cleaning equipment — the same systems used by commercial restoration contractors, not rental-store units that lack suction power and HEPA containment. For air quality upgrades following cleaning, we stock and install products from Honeywell, Aprilaire, and Abatement Technologies. Guardsman sanitizing treatments are available for properties with confirmed biological contamination. Having these brands on hand means Gladstone customers don’t wait weeks for special orders; we complete the full service arc — cleaning, repair, sealing, sanitizing — in the original visit when possible.
Common Air Duct Cleaning Problems We See in Gladstone Homes
- Mold blooms at flex duct low points. The river-bottom topography channels cold, saturated air into Gladstone neighborhoods, and crawl-space flex duct sections sag over time, creating water traps. We regularly find visible mold colonies at these low points — a failure pattern tied directly to Gladstone’s flood-plain geography that rarely appears in jobs just a few miles uphill in Oregon City.
- Loose joints in uninsulated galvanized trunks. Post-war ranch homes with original duct systems often have unsealed joints that pull damp crawl-space air directly into the airflow. These systems weren’t designed for the moisture load Gladstone’s microclimate delivers.
- DIY cleaning residue re-contaminating systems. Self-reliant homeowners sometimes rent equipment or attempt brush-and-vacuum cleaning, leaving behind debris that re-contaminates the system within weeks — especially in damp river-bottom conditions where biological growth accelerates on any remaining organic matter.
- Detached workshop supply runs with moisture-trapping sag. Longer supply lines to outbuildings often use uninsulated flex duct that sags between supports, trapping condensation from humid outside air. These runs require careful inspection and often section replacement, not just cleaning.
Pricing for Air Duct Cleaning in Gladstone, OR
| Service | Typical Range in Gladstone |
|---|---|
| Residential duct cleaning (standard ranch/bungalow) | $350–$550 |
| Full system cleaning with video inspection | $500–$650 |
| Commercial duct cleaning (per CFM / linear foot) | $0.35–$0.65 per sq ft of served space |
| Supply or return-only cleaning | $225–$375 |
| Video inspection as standalone service | $150–$225 |
| Duct repair / sealing (per linear foot) | $8–$18 |
| Flex duct section replacement | $125–$275 per section |
What moves you within these ranges? System accessibility (crawl space height, duct location), contamination severity (light dust vs. established mold requiring sanitizer), and whether we find damage requiring repair during video inspection. Older Gladstone homes with original galvanized systems often need more joint sealing than newer construction. We quote upfront after inspection — no range-shifting once we’re on site. Estimates are free: call (877) 335-1974.
We Also Serve Cities Near Gladstone
Our service radius covers the full Clackamas County river-bottom corridor, including Jennings Lodge to the north, Oatfield and Oak Grove to the east along the Clackamas River, and West Linn to the south. Each community has distinct ductwork challenges — West Linn’s hillside homes face different pressure dynamics than Gladstone’s low-lying properties — and we adjust our approach accordingly.
Serving Gladstone, OR — Our Local Coverage Area
We’re based in the Gladstone 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 Gladstone
Yes — the sustained moisture load from Gladstone’s confluence microclimate means crawl-space ductwork stays damp far longer between rain events, accelerating mold growth that elevated homes in West Linn or Lake Oswego rarely experience. Biannual inspection and annual cleaning is a practical health necessity here, not a discretionary service. Call (877) 335-1974 to schedule — estimates are free.
We can and do — longer supply runs to outbuildings are common on Gladstone’s acreage properties, and we inspect these lines for the moisture-trapping sags that uninsulated flex duct develops over time. Our equipment handles extended reach, and Richard Anderson evaluates whether cleaning alone is sufficient or if section replacement is the smarter long-term fix. Call (877) 335-1974 for an exact quote.
Not when done correctly — our Rotobrush systems use controlled mechanical agitation designed for aging metal duct, and we pre-inspect with video to identify sections too compromised for brushing. In 11 years of owner-led work, we’ve developed protocols that clean without perforating thin-gauge galvanized walls. If we find damage, we flag it before proceeding and offer repair options. Call (877) 335-1974 to discuss your specific system.
Yes — video inspection is standard on every Gladstone job and available as a standalone service for $150–$225. The high-resolution feed documents mold blooms, moisture stains, and structural damage in real time, with archived footage you can reference for insurance or property records. Many Gladstone homeowners use this documentation to verify whether previous “clean” assessments were accurate. Call (877) 335-1974 to book.
We can — sagging flex duct with moisture retention is one of the most common issues we find in Gladstone’s river-bottom homes, particularly in the low-lying neighborhoods near the Clackamas River corridor. We remove the waterlogged section, replace it with properly supported new flex or rigid duct, and seal the connection points to prevent re-entry of damp crawl-space air. This repair typically runs $125–$275 per section depending on access and length. Call (877) 335-1974 for an exact quote — estimates are free.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Gladstone and the greater Portland metro since 2014.