IICRC Certified Mold Remediation
Attic Mold? Get Safe Removal in Portland OR & Vancouver WA
RescueHero identifies the source, removes the mold to S520 standard, and corrects the ventilation or roofing defect, all with one contractor.
Why Attic Mold Grows
Four Causes We See in PNW Homes
Roof Leaks
Rain intrusion at flashings, pipe penetrations, vent boots, and ridge caps is the most common cause of attic mold in the PNW. Portland averages 36 to 44 inches of rain per year. Water saturates the OSB or plywood roof sheathing, which is dark and poorly ventilated, mold colonizes wet OSB within 24 to 72 hours. The sheathing and rafters are typically the primary affected surfaces, and water damage restoration must often accompany remediation when sheathing has been saturated.
Bathroom/Kitchen Fans Vented Into Attic
This is an extremely common code violation in older PNW homes and one of the most frequently misdiagnosed causes of attic mold. Exhaust fans should terminate outside the building envelope. When they terminate inside the attic, warm humid air from showers and cooking hits the cold roof sheathing and condenses, creating persistent moisture on wood surfaces. Remediating the mold without redirecting the duct guarantees recurrence.
Blocked Soffit and Ridge Ventilation
Attics require cross-ventilation: cool outdoor air enters at soffit vents along the eaves and exits at the ridge. When soffit vents are blocked by blown insulation, debris, or poor installation, heat and moisture accumulate. The attic runs hot and humid in summer, and condensation forms on sheathing during cold months, exactly the conditions mold needs.
Ice Dams
In freezing events, particularly in Gorge-corridor communities and hillside neighborhoods of Vancouver, WA and Portland, OR, snow on a warm roof melts at the ridge and refreezes at the colder eaves. The ice backs up under shingles and allows water to enter the attic. Ice dam events often cause attic mold that goes undiscovered until the next roofing inspection or home sale. Not sure which cause applies? A free assessment pinpoints the source in under 90 minutes.
Warning Signs
Signs You May Have Attic Mold
Attic mold is often invisible from inside the home, these are the signs to watch for.
Dark Staining on Roof Sheathing
Black, gray, or greenish fuzzy growth on the underside of the roof deck or on rafters, often looks like spray paint from a distance with a fuzzy texture on close inspection.
Musty Smell in Upper Floors
Attic air exchanges into living space through recessed lights and ceiling penetrations. A musty smell in upstairs bedrooms or closets that worsens in winter may originate in the attic.
Found During a Home Inspection
Attic mold is frequently discovered during real estate transactions. Call (360) 300-4111 for a same-week assessment.
Recent Roof Leak or Storm Damage
Any known water entry point is a mold risk within 24 to 72 hours. If you had a roof repair in the last year, check the attic.
Our Process
How We Remove Attic Mold
Every job follows IICRC S520: identify the source first, contain, remove, treat, then correct the root cause so the mold cannot return.
Free Assessment & Source ID
Visual inspection of attic, moisture meter readings on sheathing and rafters, examination of all penetrations and exhaust terminations, before any mold is disturbed.
Containment & Negative Air
Poly containment at the attic access hatch. HEPA air scrubber under negative pressure captures disturbed spores. Full PPE (Tyvek, P100 respirators) throughout.
Insulation Removal & Treatment
Contaminated insulation bagged and removed. All exposed wood surfaces (sheathing, rafters, collar ties) HEPA vacuumed then treated with EPA-registered antimicrobial. Severely degraded sheathing replaced.
Source Correction
We fix the root cause, reroute the exhaust duct, repair roof flashing, clear or add soffit vents. This is the step most remediation-only companies cannot perform. We handle it in the same scope.
Cost & Coverage
What Does Attic Mold Removal Cost?
Typical Cost Range
Attic mold remediation in the Portland/Vancouver metro typically runs $1,500 to $5,000 or more. Severely degraded OSB requiring sheathing replacement increases cost. Source correction (duct rerouting, roofing repair) is scoped and priced separately but handled by the same contractor.
What Affects the Price
Square footage of affected sheathing, linear footage of contaminated rafters, insulation type and volume, severity (Condition 2 localized vs. Condition 3 widespread), and source correction scope. A free assessment gives you a clear scope and estimate before any work starts.
Insurance Coverage
Storm-caused roof leaks are often covered under homeowners insurance as part of the water damage claim. Ice dam damage is commonly covered under HO-1/2/3 policies. Gradual moisture from a poorly vented fan typically falls under maintenance exclusions; we assess the cause and work with your adjuster when coverage applies.
Why RescueHero
Disaster Is Stressful Enough
We take the weight off your shoulders, fast response, real expertise, and an insurance process we handle for you.
Fast 24/7 Response
We answer day or night and arrive on-site in 90 minutes or less, because water damage spreads by the hour.
We Handle Your Insurance
We document the loss and bill your insurance company directly, so you can focus on your family.
IICRC-Certified Crews
Trained, certified technicians using industrial drying, thermal imaging and proven methods to restore your home.
Local Experts Since 2003
Two decades restoring Portland-metro homes and businesses, ranked in the top 4% of Washington contractors.
How It Works
Three Steps to Your Home Restored
A clear, calm process from your first call through the final repair.
Call & Rapid Response
Call (360) 300-4111 any time. We dispatch a crew and arrive on-site in 90 minutes or less to assess the damage and stop it from spreading.
Mitigate & Dry
We stop the source, extract water, and set up industrial drying to prevent mold and further loss, documenting everything for your claim.
Restore & Rebuild
From repairs to full reconstruction, we return your home to pre-loss condition and handle your insurance claim from start to finish.
Licensed, Bonded & Insured
Fully licensed in Oregon & Washington (WA #PALIYCL840CR · OR CCB #178996), with full insurance for your peace of mind.
IICRC Certified
Our technicians are trained and certified to IICRC industry standards for water, fire and mold restoration.
Workmanship You Can Trust
We don’t leave until it’s done right, restored to pre-loss condition or better.
Insurance Claims Made Easy
We Work Directly With Your Insurance
Attic mold from a storm-caused roof leak is often covered under homeowners insurance as part of the water damage claim, the mold is a direct consequence of the covered event. Ice dam damage is also commonly covered under HO-1/2/3 policies. Gradual moisture from a poorly vented fan or chronic ventilation neglect typically falls under maintenance exclusions; we assess the cause and work with your adjuster when coverage applies.
- Billed directly to your insurance carrier
- Full photo & moisture documentation
- We advocate for a fair, complete claim
- You choose your contractor, not the insurer
Built on Trust
Two Decades of 5-Star Craftsmanship
RescueHero is the restoration arm of the Paliy family’s construction company, rated 5.0 on HomeAdvisor and ranked in the top 4% of Washington contractors by BuildZoom. The same proven team and standards, now restoring homes and businesses after disaster.
“The work was done efficiently and professionally, with very good communication.”
“Great work! Fast, clean, customer friendly!”
“Art and David were extremely professional and answered all my questions while installing our new floors.”
Verified reviews of the Paliy family’s construction & remodeling work (BuildZoom). Restoration reviews coming as RescueHero launches.
Questions & Answers
Attic Mold Removal: Frequently Asked Questions
What causes mold in an attic?
How do you get rid of attic mold?
Does insurance cover attic mold from a roof leak?
Do I need to replace my attic insulation if it has mold?
Where We Work
Serving the Portland & Vancouver Metro
Fast, local response across the entire Portland/Vancouver metro. Our crews are based right here, so when you call, help is already on the way.
View All Service Areas
Attic Mold Gets Worse Every Rain Season. Don’t Wait Until the Next Home Inspection.
Call us today and we will have a technician on-site within 90 minutes to assess the mold and identify the source at no charge.
Get Help Now
Tell Us What Happened
Tell us what happened and we’ll call you right back. For an active emergency, please call or text (360) 300-4111, we answer 24/7.