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Best mold testing and remediation specialists near Gresham, OR

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Top-Rated Mold testing and remediation specialists in Gresham - Updated Nov 2026

Avatar for Mold Inspection Sciences of Portland
Mold Inspection Sciences of Portland
4.9(
68
)
Mold & Toxic Material Test

Serving Gresham, OR and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Craig was professional, knowledgeable, prompt and courteous. He gave me a good idea of what to expect in dealing with the mold problem, which was a big help since I've not dealt with such things in the past."
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
Recommended by96%of homeowners
Avatar for Alpha Environmental Services Inc
Alpha Environmental Services Inc
4.7(
134
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Gresham, OR and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"We hired Alpha Environmental Services to remove mold in our attic. They responded quickly to our emails and were able to complete the work right away. They explained the procedures thoroughly and kept us informed with before-and-after photos. Friendly, knowledgable, and reasonably priced, I would definitely recommend this company."
Heating Oil Tank
Radon Reduction System
Removal of Underground Tank
Response time1 day
Response rate100%
Recommended by85%of homeowners
Avatar for Armored Restoration
Armored Restoration
4.8(
20
)
Dry-rot, Water or Pest Damage - Major RepairMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Gresham, OR and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"We had a leak in our tub that caused significant damage to everything around it. Kevin came out and did a thorough inspection, walked us through what the process was going to look like, and started demo a couple days later. Chris and Garrett primarily worked on our project and had great attitudes, always friendly, and communicated every step of the way. Our bathroom is now put back together and looks great."
Mold
Mold from roof leak
After mold remediation, drywall repair and flooring installed.
Before
Mold

+32

Response time7 hrs
Recommended by100%of homeowners
Avatar for PNW Mold Masters
PNW Mold Masters
4.1(
16
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairIndoor Air Quality Testing+3 more

Serving Gresham, OR and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"My condo is dated and lacks proper ventilation- aka no fans in the bathroom. So that combined with living in the pacific northwest is a recipe for disaster and perfect breeding ground for mold to accumulate. After dealing with a smell that would not quit for months I decided it was finally time to have my home inspected and gave Mold Masters a try. As a first time home owner I was unsure what to expect. Mold Masters was professional, honest, and guided me through the whole experience. I would highly recommend this business to anyone looking to improve their home and health."
Mold Testing Project
Mold Testing Project
Mold Testing Project
Mold Testing Project
Additional Photos

+3

Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Mold CT | Mold Consulting & Testing
Mold CT | Mold Consulting & Testing
5.0(
4
)
Indoor Air Quality TestingMold & Toxic Material Test

Serving Gresham, 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 Mold Test Company OR
Mold Test Company OR
3.8(
79
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Gresham, OR and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+70

Response time2 days
32 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Crawlspace Masters, Inc.
Crawlspace Masters, Inc.
4.9(
94
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairToxicity and Mold - Removal - For Business

Serving Gresham, OR and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I was not able to view the final work as the house had changed ownership by the time the work was completed. But I can say that the technicians that I met were sympathetic regarding the situation, professional, and timely. First of all, compliments to Michael who volunteered to work on his Friday off in an attempt to get work done before the change in ownership took place. Thank you! The remediation took longer than anticipated because additional damage was discovered with the removal of debris and the ownership changed in the interval. But the crew kept to the schedule and successfully worked thru the change of ownership. You are appreciated. Thank you."
After
After
After
After
After

+221

Response time2 days
Response rate95%
40 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

The answer to whether it’s safe to use a moldy dishwasher is: It depends. Mold exposure affects people differently. It’s possible that even a small amount of mold in your dishwasher could contribute to respiratory issues and other health problems, especially if you have an underlying health condition. Mold is capable of surviving the high heat and detergent used in a dishwasher cycle, so it’s important to ensure that you act quickly at the first sign of mold, or contact a house cleaner near you to stay on top of any potential mold problems.

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

If you’ve spotted a skunk or know that one of these furry creatures sprayed one of your family members, your answer is fairly obvious. However, a skunky smell in your house that isn’t coming from these critters may be a sign of a dangerous gas leak. If you suspect this, leave your home immediately and call emergency services. It could also be a build-up of dangerous gas in your home’s septic system or plumbing. Call a professional plumber near you to make an assessment.

Yes, if there is mold in your drywall mud and you then use it to build walls in your house—or if mold develops in your set drywall, like it can in hot and humid areas—it can lead to illness. Mold in your drywall (or other parts of your home) can make existing respiratory conditions or allergies worse, and the effect can be more intense for those who have existing health issues or compromised immune systems.

Slime mold isn’t toxic to your dog, even if they eat it. Toxicity and comfort are two different things, and if you notice your dog eating slime mold, you should stop them, but not worry too much. Expect a period of gastrointestinal distress, and possibly some other complications, but your dog should be ok within a few days.

The Gresham, OR homeowners’ guide to mold testing and remediation services

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