Between 10% and 30% of the air in your home comes from your crawl space and attic. In Portland, that fact carries more weight than almost anywhere else in the country. When the space beneath your floor stays damp for seven months of the year, the air rising into your living space carries whatever is down there with it – moisture, mold spores, rodent contamination, and degraded insulation particles.
Oregon Air Duct Cleaning has been cleaning and restoring Portland-area crawl spaces and attics since the company’s founding in Aurora, Oregon. We are a subsidiary of One Speed Services – the Pacific Northwest’s most comprehensive indoor air quality contractor – and crawl space and attic work is where our full capability shows.
Call (503) 446-3737 or visit oregonairductcleaning.com to schedule. Our call center is open 24 hours a day, seven days a week. Office hours are 7:00 AM to 7:00 PM daily.
Why Portland Crawl Spaces and Attics Need Professional Attention
Portland’s climate is uniquely hard on the spaces above and below your living area. According to the NOAA National Weather Service, the Portland metro area receives 42.8 inches of annual precipitation, the vast majority falling between October and May. That seven-month wet season keeps crawl spaces beneath Portland homes at near-constant humidity, and the EPA’s Moisture Control Guidance identifies crawl space moisture as one of the primary drivers of residential indoor air quality problems.
Portland’s housing stock compounds the problem. Neighborhoods like Sellwood, Hawthorne, St. Johns, Woodstock, Montavilla, and Southeast Portland are filled with homes built between the 1950s and 1980s, many with original vapor barriers that have torn, insulation that has fallen or compressed, and crawl spaces that were never properly sealed against ground moisture. Decades of that moisture pressure degrade insulation, feed mold colonization, and create the damp conditions that draw rodents.
Rodent activity ties it all together. Crawl spaces throughout Multnomah, Washington, and Clackamas counties are an established rodent corridor, particularly from fall through early spring. Rodents nest in insulation, contaminate it with urine and feces, and chew through ductwork and vapor barrier alike, leaving contamination that continues to affect indoor air until it is professionally removed.
What Attic & Crawl Space Cleaning Includes
Our crawl space and attic service addresses both the contamination and the conditions that caused it.
Full evaluation. Every project begins with a complete inspection of the crawl space and attic – documenting moisture levels, insulation condition, vapor barrier integrity, rodent activity, mold presence, and ventilation. You receive a clear picture of what’s there before any work is proposed.
Contaminated material removal. Soiled insulation, torn vapor barrier, rodent droppings and nesting material, and debris are removed and hauled away. This is the step that eliminates the contamination source, not just the symptoms rising into your ducts.
Sanitation and treatment. Affected surfaces are cleaned and treated to address biological contamination. Where mold or heavy rodent contamination is present, restoration-level remediation is available through One Speed Services, our parent company, without any referral gap.
Rodent exclusion and entry sealing. Entry points are identified and sealed to stop the reinfestation cycle – because cleaning a crawl space without closing the access points only resets the clock.
Vapor barrier and insulation reinstallation. New vapor barrier and insulation are installed to restore the moisture control and thermal performance that Portland’s climate demands, following current Oregon building code standards.
Why Portland Homeowners Choose Oregon Air Duct Cleaning
NADCA Certified. Every Oregon Air Duct Cleaning technician holds NADCA certification for air system cleaning specialists – the highest professional standard in the industry.
800+ Five-Star Google Reviews. Oregon Air Duct Cleaning and One Speed Services together have earned more than 800 five-star Google reviews from homeowners and property managers throughout Oregon and Washington.
“David, Travis, and Joe came to work on my crawlspace and repair sump pumps, wet ducts, and the vapor barrier. These three have been great to work with. Always on time, professional, and took as much time as I needed to explain the work completed.”
“I recently purchased an older home with two attics that had rodent activity and poor ventilation. They removed the old insulation, corrected the ventilation, sealed entry points to prevent rodents, and installed high-quality new insulation. My attics are now clean, energy efficient, and properly ventilated.”
BBB Accredited. Our BBB Accreditation reflects an independent evaluation of our business ethics, pricing transparency, and customer service standards.
Oregon Energy Trust Trade Ally. As a certified Energy Trust of Oregon Trade Ally, our insulation and air sealing work qualifies Portland homeowners for cash incentives – reducing out-of-pocket costs for homeowners served by PGE, Pacific Power, NW Natural, and Cascade Natural Gas.
Family-Owned, Oregon-Based. Oregon Air Duct Cleaning was founded by Chris and Shelly Gage in Aurora, Oregon. When you call (503) 446-3737, you reach a local family business – not a national franchise.
1,000+ Hours of Supervised Training. Every technician completes over 1,000 supervised labor hours before working independently, in every crawl space and attic condition the Pacific Northwest produces.
Serving Portland and the Surrounding Metro Area
Oregon Air Duct Cleaning serves Portland and all surrounding communities including Beaverton, Hillsboro, Gresham, Lake Oswego, Tigard, Tualatin, Sherwood, West Linn, Oregon City, Milwaukie, Clackamas, Happy Valley, Canby, Wilsonville, and Aurora – as well as Salem, Vancouver, Albany, Corvallis, and communities throughout Oregon and Washington.
Oregon Air Duct Cleaning – a subsidiary of One Speed Services. 22050 Boones Ferry Rd NE, Aurora, OR 97002. CCB License: #229176. Phone: (503) 446-3737. Email: Support@OneSpeedServices.com. Office Hours: 7:00 AM to 7:00 PM daily. Call Center: 24 hours a day, 7 days a week.
Visit oregonairductcleaning.com to schedule online or request pricing.
Frequently Asked Questions – Attic & Crawl Space Cleaning in Portland, Oregon
Why does my Portland home’s air quality depend on the crawl space and attic?
Between 10% and 30% of the air in your home originates in the crawl space and attic through a process called the stack effect – warm air rises and escapes through the attic, drawing replacement air up from the crawl space below. In Portland, where the EPA documents crawl space moisture as a primary indoor air quality driver, that means moisture, mold spores, and rodent contamination from below are continuously pulled into your living space.
How do I know if my Portland crawl space needs cleaning?
Common signs include musty odors, higher humidity indoors, visible mold, evidence of rodent activity, sagging or fallen insulation, and rooms that never quite feel comfortable. Because most homeowners never enter their crawl space, a professional inspection – which Oregon Air Duct Cleaning provides at no charge – is the reliable way to know.
Do you seal rodent entry points, or just clean up after them?
Both. Cleaning a crawl space without sealing entry points only resets the reinfestation clock. Our process identifies and seals access points so the contamination doesn’t return, and heavier remediation is available through One Speed Services without a referral gap.
Can Portland homeowners get rebates on insulation and air sealing work?
Yes. As an Energy Trust of Oregon Trade Ally, our insulation and air sealing work qualifies customers of PGE, Pacific Power, NW Natural, and Cascade Natural Gas for cash incentives. Oregon’s HOMES program, active in 2026 with $113 million in federal Inflation Reduction Act funding, offers additional rebates up to $10,000 that can be stacked. We advise on all applicable programs during the free evaluation.
What’s the difference between Oregon Air Duct Cleaning and One Speed Services for crawl space work?
Oregon Air Duct Cleaning focuses on duct-related services and the crawl space and attic cleaning that connects to your air quality. One Speed Services, our parent company, handles the full restoration scope – mold remediation, structural crawl space restoration, basement waterproofing, and more. Both operate from the same Aurora headquarters with the same team, so broader work is handled without any referral gap.
Oregon Air Duct Cleaning – a subsidiary of One Speed Services. Attic and crawl space cleaning, air duct cleaning, restoration, repair, replacement, sealant, and dryer vent services serving Portland, Beaverton, Gresham, Lake Oswego, Tigard, Oregon City, Salem, Vancouver, and communities throughout Oregon and Washington. NADCA certified. BBB Accredited. Oregon Energy Trust Trade Ally. CCB #229176. Call (503) 446-3737 or visit oregonairductcleaning.com.
