Top-rated mold & toxic material testers.

Get matched with top mold & toxic material testers in Portland, OR

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Mold & toxic material testers in Portland

Avatar for Mold Inspection Sciences of Portland
Mold Inspection Sciences of Portland
4.9(
68
)

Serving Portland, OR and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Job done well. I hope I don't need to use a mold inspection team again, but if I do, I'll be using Mold Inspection Science. Thank you guys."
Michael Bains
Brandon Apple
Craig Cooper
Before and after photos showing mold removed
We use these swabs to collect surface samples of mold

+7

Response time1 day
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for PNW Mold Masters
PNW Mold Masters
5.0(
12
)

Serving Portland, OR and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"These guys are the best in the business. I suspected a mold issue in my bathroom, so I called up PNW Mold Masters. They were able to get a technician out in less than 24 hours. Service tech was extremely knowledgeable, professional, and very friendly, which made for a delightful interaction. They did detect mold in my bathroom and promptly came up with an action plan to correct the issue. All in, I had mold problem resolved within 48 hours of my initial call. I would highly recommend PNW Mold Masters to anyone looking to get a test or removal of mold at very market competitive pricing. 10/10 experience. Will call them again for any future issues."
Mold Testing Project
Mold Testing Project
Mold Testing Project
Mold Testing Project
Additional Photos

+3

Response time2 days
Response rate97%
3 neighbors recently requested a quote
Avatar for Armored Restoration
Armored Restoration
4.8(
20
)

Serving Portland, OR and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Kevin and Ricky called 30 minutes before they were due to be at my house to let me know they would be 15 minutes late. When they arrived they were very profession and began examining the wall behind where the dishwasher was. They did testing for moisture and mold and determined that they did not observe black mold or dry rot. They said the "black" was dead mold and explained how I could have determined if it were indeed black mold. They recommended that I obtain some microbial treatment spray and told me exactly what to do to treat the area. They also suggested I get some Kilz paint for bath and kitchen and paint the area after I completed treatment. When I explained that the dishwasher installers would not complete the installation until the treatment was complete, they gave me their card and said to have the installers call them if there were any questions. While they didn't provide any services other than the testing, they provided a lot of information and peace of mind. They literally saved me from hiring a different contractor that would probably have cost me $70,000 to $90,000, based upon what that contractor told me would need to be done. These guys were great and I would highly recommend Armored Restoration!"
Mold
Mold from roof leak
After mold remediation, drywall repair and flooring installed.
Before
Mold

+32

Response time7 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mold CT
Mold CT
5.0(
4
)

Serving Portland, OR and surrounding areas

Approved

In business since 2016

Credit card accepted

Offers commercial services

Mold Consulting and Testing is your first choice for expert and unbiased advice on Mold and Water Damage. We provide onsite inspections and testing for mold, as well as expert witness services throughout the Portland, OR and Vancouver, WA metro and beyond. As a prior owner / operator of a mold remediation business, I have 10 years of experience in the mold remediation industry, and that makes our service unique. Most companies just talk about clean-up, but we've actually done it!

Onsite Inspection
Moldy Attics
Moldy Attics
Containment
Air Testing

+3

Avatar for ACCURACY PROPERTY RESTORATION
ACCURACY PROPERTY RESTORATION
5.0(
8
)

Serving Portland, OR and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Yoni did a great job removing mold and fixing the source of the moisture which is the broken exhaust fan ducts. Would definitely work with him again on other projects."
Drywall Project
Mold Testing and Remediation Project
Water & Smoke Damage Project
Water & Smoke Damage Project
Water & Smoke Damage Project

+35

Response time2 days
2 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Portland Construction & Restoration Solutions
Portland Construction & Restoration Solutions
5.0(
5
)

Serving Portland, OR and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Family-Owned Restoration Built on Process, People, and Integrity.\n\nLocally owned and family-run since 2008, Portland Construction & Restoration Solutions has grown from a small operation into one of the most respected names in the region.\n\nWith around 50 employees and nearly two decades of experience, our team of skilled restoration professionals brings expertise in emergency services, clear communication, and high-quality craftsmanship to every project.\n\nWe are dedicated to putting homeowners first, backed by experienced restoration professionals who deliver trusted, reliable service when it matters most.

Upstairs post demo
Living Post Demo
Kitchen Post Demo
Front Post Demo
Completed Upstairs

+5

Avatar for The Mold Reporters, Inc.
The Mold Reporters, Inc.
4.6(
54
)

Serving Portland, OR and surrounding areas

In business since 1994

"Amy and Peter were so professional and informative - they did a thorough inspection of the space, tested the mold, offered advice, and contacts for remediation of the mold. They were very kind and understanding in a concerning project for me and explained each aspect of their observations and possible solutions for each issue."
Recommended by82%of homeowners
Avatar for Mold Docs
Mold Docs
4.8(
21
)

Serving Portland, OR and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Performed air quality testing and suggested remediation treatment. Appreciate their communication and follow up. Hoping not to need mold remediation in the future, but appreciate their expertise when needed!"
Response time12 hrs
Response rate94%
Recommended by88%of homeowners
Showing 1-10 of 43
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.