THE 10 BEST Mold Inspection Services in PORTLAND, OR
| Business Name | Key Services | Best For | Address | Hours | PS Rating |
|---|---|---|---|---|---|
| Mold Testing Services of Oregon | Mold inspections, testing, mycotoxin assessments, radon testing | Thorough family-owned testing services | Portland, OR 97212 | Mon-Fri: 8:30 AM – 6:00 PM, Sat-Sun: Closed | 4.8/5 |
| Mold Inspection Sciences | Mold inspection, detection, CIRS testing, post-remediation clearance | Independent third-party inspections | 2410 SE 121st Ave, Ste 200, Portland, OR 97221 | Mon-Fri: 7:00 AM – 5:00 PM, Sat: 10:00 AM – 1:00 PM, Sun: Closed | 4.7/5 |
| Alpha Environmental Services | Mold testing, inspection, removal, environmental consulting | Full-service environmental solutions | 11080 SW Allen Blvd, Ste 100, Beaverton, OR 97005 | Mon-Fri: 8:00 AM – 5:00 PM, Sat-Sun: Closed | 4.6/5 |
| Nonprofit Home Inspections | Home inspections with mold testing, radon testing, sewer scopes | Affordable nonprofit inspection services | 1515 SW 5th Ave, Ste 825, Portland, OR 97201 | Mon-Sun: 5:30 AM – 10:30 PM | 4.7/5 |
| PNW Mold Masters | Mold testing, air contaminant testing | Fast and convenient home testing | 2046 NW 16th Ave, Portland, OR 97209 | Mon-Fri: 7:00 AM – 5:00 PM, Sat-Sun: Closed | 4.5/5 |
| Environmental Testing Associates | Mold inspection, asbestos testing, VOC testing, wellness coaching | Health-focused environmental testing | 3132 SW Marigold St, Portland, OR 97219 | Mon-Fri: 8:00 AM – 5:00 PM, Sat-Sun: Closed | 4.6/5 |
| Indoor Science | Indoor air quality evaluations, water quality testing, post-fire testing | Comprehensive IAQ assessments | Portland Metro Area | By appointment | 4.5/5 |
| ServPlus Water Damage Restoration | Water damage restoration, mold remediation, emergency response | 24/7 emergency mold services | Oregon City (serving Portland area) | 24/7 | 4.4/5 |
| Rescom Restoration | Mold removal, dry fog treatment, water damage mitigation | Innovative dry fog mold removal | 4949 S. Macadam Ave. #101, Portland, OR 97239 | By appointment | 4.3/5 |
| MSE Environmental | Mold testing, asbestos testing, healthcare compliance testing | Quick deployment and testing | Portland Metro Area | By appointment | 4.4/5 |

#1. Mold Testing Services of Oregon – Best for Thorough Family-Owned Testing Services
Key Highlights:
- Family-owned business with certified inspectors using thermal imaging and moisture detection technology
- Testing-only company with no conflict of interest, partnering with accredited laboratories
- Provides detailed reports and clear, actionable insights for residential and commercial properties
Mold Testing Services of Oregon (MTSO) stands out as one of Portland’s most trusted mold inspection companies. The business is run by Garrett, who leads a team that focuses exclusively on testing and inspection without performing remediation work. This approach means you get honest results without any pressure to buy additional services.
MTSO uses cutting-edge technology like thermal imaging to find hidden mold problems that you might not see with your eyes. They check every part of your home, from the attic to the crawl space. The team takes samples and sends them to certified labs for accurate testing. Most customers get results within a few days.
What makes MTSO special is their personal touch. Garrett takes time to explain everything in simple words and answers all your questions. Many customers say they found mold in places they never thought to check. The company serves homes and businesses across Portland and the surrounding areas.
#2. Mold Inspection Sciences – Best for Independent Third-Party Inspections
Key Highlights:
- Over 20 years of experience with 75,000+ inspections completed across multiple states
- Science-based approach with no remediation services to ensure unbiased findings
- FLIR infrared camera technology and regularly calibrated industry-standard equipment
Mold Inspection Sciences has been helping Portland homeowners since 2002. They only do testing and never perform mold removal. This means their inspections are completely unbiased. You can trust that they will tell you the truth about your mold problem.
The company uses special cameras that can see moisture inside walls. This helps them find mold before it becomes a big problem. Their inspectors, like Craig, spend several hours checking your entire property. They even look in hidden spaces like attic crawl spaces you didn’t know existed.
Mold Inspection Sciences works with certified labs to test your samples. They provide detailed reports with photos and clear recommendations. The company serves Portland, Vancouver, and surrounding areas. Many real estate agents and homeowners trust them for pre-purchase inspections and post-remediation clearance testing.
#3. Alpha Environmental Services – Best for Full-Service Environmental Solutions
Key Highlights:
- Over 25 years serving the Portland area with 50+ full-time employees
- Complete range of services from testing to removal and environmental consulting
- Licensed, bonded, and insured with expertise in multiple environmental hazards
Alpha Environmental is a one-stop shop for all your mold needs. They can test for mold, remove it, and help prevent it from coming back. The company has been working in Portland for over two decades and knows exactly where mold likes to hide in Oregon homes.
Their team includes certified inspectors who understand how buildings work. They check your attic, basement, crawl space, and walls using moisture meters and visual inspections. If they find mold, they can provide removal services right away. Alpha also helps with radon, asbestos, and other environmental problems.
The company offers free estimates and responds quickly when you call. Their staff is friendly and explains everything in clear language. Many customers appreciate that Alpha handles everything from start to finish. They work with insurance companies and make sure all permits and regulations are followed properly.
#4. Nonprofit Home Inspections – Best for Affordable Nonprofit Inspection Services
Key Highlights:
- Registered 501(c)(3) nonprofit organization offering sliding fee scale pricing
- Certified inspectors with thermal imaging included in all inspections
- Guaranteed same-day reports with comprehensive mold sampling services
Nonprofit Home Inspections is unique because they operate as a nonprofit. This means they focus on helping people instead of making big profits. They offer lower prices based on what you can afford. Their mission is to make sure everyone has access to safe housing.
The company provides full home inspections that include checking for mold. They use thermal imaging to find moisture problems and offer mold sampling as an add-on service. Their inspectors, like Charles and Tom, are former contractors who really understand buildings.
When they find mold, they send samples to accredited labs for testing. You get results within a few business days along with a detailed MoldReport. The nonprofit also offers free services to other organizations that help low-income families. Their inspections are thorough and their reports are easy to understand.
#5. PNW Mold Masters – Best for Fast and Convenient Home Testing
Key Highlights:
- Quick and reliable testing for mold and air contaminants
- Professional and honest service with detailed reporting
- Specializes in helping first-time homeowners understand mold issues
PNW Mold Masters focuses on making mold testing simple and stress-free. They understand that finding mold can be scary, especially for first-time homeowners. Their team takes time to explain everything and guide you through the process.
The company offers fast testing services for homes and businesses in Portland. They check your property for mold and other air quality problems. Many customers praise them for being professional, honest, and easy to work with.
PNW Mold Masters helps you understand why mold grows and what you can do about it. They look at ventilation issues and moisture sources. Their goal is to give you peace of mind about your indoor air quality. The company serves the Portland metro area and responds quickly to calls.
#6. Environmental Testing Associates – Best for Health-Focused Environmental Testing
Key Highlights:
- IAC2-certified independent third-party inspection company
- Offers wellness coaching for environmental toxins alongside testing services
- Specializes in VOCs, infrared thermography, and remediation scope development
Environmental Testing Associates (ETA) takes a unique approach by combining testing with wellness coaching. They don’t just find mold; they help you understand how it affects your health. The company is certified and operates as an independent third party.
ETA tests for many indoor contaminants including mold, asbestos, lead, and volatile organic compounds. They use infrared cameras to find hidden moisture problems. Their team includes a certified health and wellness coach who can provide guidance on environmental toxins.
The company has been serving Portland since 2003. They use a scientific approach without scare tactics. ETA works with homeowners, property managers, and landlords. Their reports are thorough and include recommendations for fixing problems. Many customers appreciate their honest and straightforward service.
#7. Indoor Science – Best for Comprehensive IAQ Assessments
Key Highlights:
- Over 25 years of experience in indoor air quality testing
- Layered approach using visual inspection, equipment analysis, and laboratory testing
- Provides moisture mapping, cause and origin reports, and post-fire testing
Indoor Science brings decades of expertise to Portland’s mold inspection market. They use a scientific approach that starts with looking at your property and then uses specialized equipment. This helps ensure you only pay for the testing you actually need.
The company spends much more time at your property than typical inspectors. They look inside walls, under carpeting, in ductwork, and throughout HVAC systems. Their goal is to find the root cause of mold, not just identify where it is growing.
Indoor Science also offers post-fire testing and energy optimization consulting. They work with property owners, restoration companies, and insurance carriers. Their reports simplify complex technical information so you can understand exactly what needs to be done. They have a network of restoration partners who can provide competitive bids.
#8. ServPlus Water Damage Restoration – Best for 24/7 Emergency Mold Services
Key Highlights:
- 24/7 emergency response with technicians arriving within 90 minutes
- IICRC-certified specialists serving Portland since 2001
- Full-service restoration from water damage to complete mold remediation
ServPlus specializes in handling mold problems that come from water damage. They are available day and night, seven days a week. When you call, a real person answers who can help right away. Their technicians arrive fast to stop the problem from getting worse.
The company does more than just find mold. They remove water, dry your property, and eliminate mold completely. Their team has special equipment like air scrubbers and HEPA filters. They work with your insurance company to make the process easier.
ServPlus has been serving Portland for over 20 years. Their customer-first approach means they care about making your home safe again. Many customers say the team is professional, kind, and efficient. They handle everything from small mold spots to major contamination in homes and businesses.
#9. Rescom Restoration – Best for Innovative Dry Fog Mold Removal
Key Highlights:
- Specialized dry fog mold removal technology that avoids expensive demolition
- Free visual inspection and consultation included
- Over 20 years of general contracting experience with mold specialization
Rescom Restoration offers a special method called dry fog mold removal. This process can eliminate mold without tearing down walls. It saves money and time compared to traditional removal methods. The owner, Jason Ray, has over 20 years of experience as a general contractor.
The company starts with a free inspection where they explain how complex mold really is. They use moisture meters to check if materials are wet. Rescom looks at your attic and crawl space to find common moisture problems. They help you understand your testing options.
Their dry fog process leaves you with mold-free air and stops mold from spreading. Rescom offers free re-inspections after treatment. They serve homes and businesses throughout the Portland metro area. Many customers appreciate that Rescom goes beyond just removing mold by improving ventilation and preventing future growth.
#10. MSE Environmental – Best for Quick Deployment and Testing
Key Highlights:
- Rapid deployment with quick turnaround on testing results
- Expertise in healthcare compliance including Legionella, USP 797, and USP 800 testing
- Comprehensive environmental hazard identification and regulatory compliance support
MSE Environmental focuses on speed and thoroughness. They can deploy quickly to your Portland property and complete jobs fast. The company tests for mold, asbestos, and lead-based paint. They also help businesses meet healthcare compliance requirements.
Their expert mold inspectors examine damaged areas including crawl spaces, ceilings, and roofing. They take air and surface samples to identify the exact type of mold present. MSE knows all the EPA and OSHA rules about mold treatment and disposal.
The company helps property owners avoid fines and legal problems by ensuring compliance with regulations. They keep up with the latest guidelines and offer testing that is both safe and effective. MSE serves residential and commercial properties throughout the Portland area with professional and knowledgeable service.
How Much Does a Mold Inspection Cost in Portland?
Mold inspection costs in Portland typically range from $300 to $600 for a standard home. The price depends on the size of your home and how many samples you need tested. Most companies charge separately for the inspection visit and laboratory testing.
A basic inspection with two air samples usually costs around $400 to $500. One sample tests the air inside your home while another tests outside air for comparison. If you need more samples from different rooms or surface testing, costs go up by about $100 to $150 per additional sample.
Some companies offer package deals that include inspection and testing together. Others charge for travel time if you live far from their office. Remember that spending money on a proper inspection can save you thousands later. Finding mold early prevents bigger damage and health problems down the road.
Do I Really Need Professional Mold Testing?
Professional mold testing is important when you suspect hidden mold or have health symptoms. If you can see mold growing on surfaces, you already know it exists. But professional testing tells you what type of mold you have and how bad the problem is.
Testing becomes necessary when you smell musty odors but cannot find the source. It also helps after water damage, when buying or selling a home, or when family members have unexplained allergies. Professional inspectors use special equipment to find mold inside walls and other hidden places.
Do-it-yourself test kits from stores are not reliable. They often give wrong results because of shipping problems and lack of proper controls. Professional inspectors know where to look and how to collect samples correctly. They work with certified labs that give accurate results you can trust. This information helps you make smart decisions about remediation.
How Long Does the Mold Inspection Process Take?
A typical mold inspection takes about 2 to 5 hours depending on your home size. Small apartments might only need 2 hours while large houses can take all day. The inspector walks through your entire property looking for signs of moisture and mold growth.
During the inspection, they check your attic, basement, crawl spaces, bathrooms, and kitchen. They use moisture meters and thermal cameras to find hidden problems. If samples are needed, collecting them adds about 30 minutes to the process. The inspector explains findings with you before leaving.
Getting lab results takes 3 to 5 business days for standard testing. Some companies offer rush service that provides results within 24 to 48 hours for an extra fee. After results come back, the company sends you a detailed report. Many inspectors will call to explain the results and answer your questions. The entire process from inspection to final report usually takes one week.
