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Find Mold & toxic material testers in Portland

Avatar for PNW Mold Masters
PNW Mold Masters
5.0(
6
)

Angi Approved

In business since 2024

Free estimates

Emergency services offered

"The company came to our house for mold removal and water removal work. The guys was very professional, explained about everything they did very well. And clean around them after they finished the job. I’m highly recommend for everyone. Thank you Peter ."
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alpha Environmental Services Inc
Alpha Environmental Services Inc
4.7(
112
)

Angi Approved

In business since 2002

Free estimates

Warranties offered

"The guys from Alpha took care of our attic issue in no time at all. They were clean and tidy in the access area - you'd never know they were even there. We would highly recommend them......."
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Oregon Restoration Co.
Oregon Restoration Co.
4.7(
149
)

Angi Approved

In business since 2008

Emergency services offered

Warranties offered

"Ambrosio was friendly and kind, made a thorough search through the attic and rooms of the house to evaluate the roof leak and resulting mold, and gave a detailed estimate of all the work that would be involved in remediation. Didn't charge for gas or estimate. We since haven't been able to get in contact for next steps, but appreciated the timely and thorough response for our initial request for evaluation."
2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for ACCURACY PROPERTY RESTORATION
ACCURACY PROPERTY RESTORATION
5.0(
8
)

Angi Approved

In business since 2018

Free estimates

Emergency services offered

"Everything went well from start to finish. Yoni and his team were nice, professional and on schedule. They cleaned the mold in our loft ceiling, installed proper ventilation, insulation, sheetrock and painted. The trim around the skylights looks perfect. The paint is perfect as well. They left our living room clean. We definitely recommend Accuracy U.S.A."
3 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Cascade Radon Inc
Cascade Radon Inc
4.9(
157
)

In business since 1990

Free estimates

Emergency services offered

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."
Recommended by99%of homeowners
Global Plasma Solutions
5.0(
1
)

In business since 2008

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Recommended by100%of homeowners
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FAQs for mold & toxic material test projects in Portland, OR

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Portland, OR homeowners’ guide to mold & toxic material tests

From average costs to expert advice, get all the answers you need to get your job done.