THE 10 BEST Mold Testing 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 | Objective testing without remediation conflicts | Portland, OR | By Appointment | 4.8/5 |
| Mold Inspection Sciences | Mold testing, inspection, CIRS inspection, post-remediation clearance | Scientific approach with no remediation services | Portland, OR | By Appointment | 4.7/5 |
| Alpha Environmental | Mold testing, inspection, removal, asbestos & radon services | Full-service environmental testing and remediation | 11080 SW Allen Blvd, Ste 100, Beaverton, OR 97005 | Mon-Fri: 8am-5pm | 4.6/5 |
| Environmental Testing Associates | Mold inspection, testing, VOC testing, wellness coaching | Unbiased third-party testing with health focus | 3132 SW Marigold St, Portland, OR 97219 | Mon-Fri: 8am-5pm | 4.7/5 |
| PNW Mold Masters | Mold testing, air contaminant testing, structural drying | Fast and easy home testing services | 2046 NW 16th Ave, Portland, OR 97209 | Mon-Fri: 7am-5pm | 4.5/5 |
| Atlas Labs | Mold testing, asbestos testing, lead testing, same-day service | Quick laboratory testing with rush options | 14795 SW 72nd Ave, Portland, OR 97224 | Mon-Fri: 8am-5pm | 4.8/5 |
| MSE Environmental | Mold testing, asbestos testing, lead testing, compliance consulting | Healthcare and commercial compliance testing | Portland, OR | 24/7 Available | 4.4/5 |
| Oregon Restoration | Mold mitigation, water damage restoration, full reconstruction | Complete restoration from testing to rebuilding | Portland Metro, Bend, Eugene | 24/7 Emergency Service | 4.6/5 |
| Pure Maintenance Portland | Mold testing, dry fog remediation, lifetime warranty | Patented non-toxic mold removal technology | 4949 S. Macadam Ave. #101, Portland, OR 97239 | Mon-Fri: 8am-7pm | 4.5/5 |
| Great Northwest Environmental | Mold testing, asbestos surveys, radon testing, lead inspection | Comprehensive environmental hazard testing | 4800 Meadows Rd, Suite 300, Lake Oswego, OR 97035 | 24/7 Available | 4.4/5 |
#1. Mold Testing Services of Oregon – Best for Objective Testing Without Remediation Conflicts
Key Highlights:
- Specializes exclusively in mold inspections and testing with no remediation services to ensure unbiased results
- Uses cutting-edge technology including thermal imaging and moisture detection equipment
- Partners with accredited laboratories for scientifically sound testing and comprehensive assessments
Mold Testing Services of Oregon (MTSO) stands out in Portland for its commitment to objective testing. Because they do not perform any remediation work, their findings remain completely transparent and free from conflicts of interest.
Their inspector Garrett has earned exceptional reviews for his thoroughness and professionalism. Clients appreciate how he takes time to explain findings clearly and provides actionable insights.
The company uses laboratory-grade equipment to detect hidden mold and moisture issues. They serve residential and light commercial properties throughout Portland.
Their services include standard mold inspections, mycotoxin assessments, and radon testing. Each property receives a tailored approach based on its unique challenges.
MTSO understands that more than 90% of homes have at least one indoor air quality problem. They help identify these issues to protect your health, comfort, and safety.
#2. Mold Inspection Sciences – Best for Scientific Approach With No Remediation Services
Key Highlights:
- Over 75,000 mold investigations completed across 12 states with 20+ years of experience
- Uses FLIR infrared camera technology for advanced, non-invasive moisture detection
- Science-based approach with no conflicts of interest since they never perform remediation
Mold Inspection Sciences brings scientific expertise to Portland’s mold testing industry. For over two decades, they have built a reputation on proven methodology and unbiased recommendations.
Their inspectors use advanced FLIR infrared technology to identify potential moisture sources. This allows them to pinpoint testing areas with precision that traditional methods cannot match.
The company serves homeowners, businesses, and those dealing with mold-related illnesses like CIRS. They provide detailed inspection reports, testing protocols, and post-remediation clearance testing.
Because they focus solely on inspection and testing, clients trust their recommendations completely. There is never pressure to use specific remediation contractors.
Their industry-standard equipment is meticulously maintained and regularly calibrated. This ensures sample integrity and result accuracy every single time.
#3. Alpha Environmental – Best for Full-Service Environmental Testing and Remediation
Key Highlights:
- Over 25 years of experience serving the greater Portland area with comprehensive services
- Full-service company handling mold, asbestos, radon, oil tanks, and indoor air quality
- Professional team with excellent customer service and systematic approach to projects
Alpha Environmental has become Portland’s go-to company for complete environmental solutions. They offer both testing and remediation under one roof, making the process seamless for property owners.
Their services extend far beyond basic mold testing. They handle asbestos abatement, oil tank decommissioning, radon mitigation, and sewer scopes.
Clients consistently praise their customer service and communication. The scheduling department receives high marks for kindness and responsiveness.
Real estate professionals frequently recommend Alpha Environmental for their reliability. They understand the urgency of real estate transactions and work efficiently.
The company is fully licensed, bonded, and insured. They pride themselves on company values that translate into service exceeding industry standards.
#4. Environmental Testing Associates – Best for Unbiased Third-Party Testing With Health Focus
Key Highlights:
- IAC2-certified indoor air quality experts with certified health and wellness coaching
- Independent third-party testing with no financial interest in remediation contracts
- Comprehensive testing for mold, mycotoxins, VOCs, bacteria, dust, and other contaminants
Environmental Testing Associates (ETA) combines environmental testing with wellness coaching for a unique approach. They understand that indoor air quality directly impacts your overall health and wellbeing.
The company maintains strict independence from remediation contractors. This ethical stance ensures their assessments remain completely unbiased and factual.
ETA uses scientific methods without scare tactics. They provide accurate data that healthcare providers can use for treatment decisions.
Their services include infrared thermography, consultation, and pre- and post-remediation verification testing. They work with homeowners, property managers, contractors, and medical practitioners.
Located in Southwest Portland, they serve clients within a 50-mile radius. Their expertise extends to various airborne contaminants beyond just mold.
#5. PNW Mold Masters – Best for Fast and Easy Home Testing Services
Key Highlights:
- Specializes in quick and reliable testing for mold and air contaminants
- Professional team trained in mold assessment and remediation techniques
- Focus on providing peace of mind through thorough but efficient testing
PNW Mold Masters makes mold testing straightforward and stress-free for Portland homeowners. Their streamlined process gets you answers quickly without sacrificing quality.
The company understands the anxiety that comes with potential mold problems. They respond promptly and schedule testing without long wait times.
Clients appreciate their honest, professional approach. First-time homeowners particularly value the guidance provided throughout the entire experience.
The Pacific Northwest climate creates perfect conditions for mold growth. PNW Mold Masters knows exactly where to look in local homes.
Their certified professionals explain findings in clear, understandable terms. You will never feel confused about what is happening in your property.
#6. Atlas Labs – Best for Quick Laboratory Testing With Rush Options
Key Highlights:
- Over 50 years of analytical laboratory experience with same-day testing available
- Multiple convenient locations including Portland and Salem with 24-hour drop boxes
- Comprehensive testing for mold, asbestos, lead, and air quality samples
Atlas Labs provides the fastest turnaround times in the Portland area. When your project cannot wait, their rush service delivers same-day results with comprehensive analysis.
The company operates multiple locations for your convenience. You can drop samples at their labs or use their mail-in service.
Their experienced technicians provide friendly service with accurate results. They test for black mold and other common types found in Pacific Northwest homes and businesses.
The laboratory uses stringent quality control protocols. This ensures integrity and precision throughout the testing process.
Atlas Labs serves both residential and commercial clients. They understand that construction projects and renovations often need quick environmental testing to proceed.
#7. MSE Environmental – Best for Healthcare and Commercial Compliance Testing
Key Highlights:
- Specializes in healthcare compliance including Legionella, USP 797, and USP 800 testing
- Expert mold inspectors for residential and commercial properties
- Fast deployment and completion to ensure property safety and health
MSE Environmental fills a crucial niche in Portland’s environmental testing market. They provide the expertise needed for healthcare facilities and commercial properties facing strict regulations.
The company helps customers navigate complex compliance issues. They create smooth standard operating procedures and sampling protocols.
Their mold inspectors examine crawl spaces, ceilings, and roofing shingles. They identify mold types and recommend the best actions to take.
Working with MSE Environmental helps you avoid costly fines and legal action. They stay current with EPA and OSHA regulations.
Regular testing prevents environmental problems from becoming expensive repairs. The longer these hazards go untreated, the harder they become to fix.
#8. Oregon Restoration – Best for Complete Restoration From Testing to Rebuilding
Key Highlights:
- IICRC-certified in both mold remediation and water damage restoration
- Complete reconstruction services to restore properties to pre-loss condition
- 24/7 emergency response with offices in Portland, Bend, and Eugene
Oregon Restoration is the largest and fastest-growing independent restoration company in the region. They earned the 2024 SBA Director’s Award for Excellence and made the 2025 Inc. 5000 list.
The company handles every step from initial mold detection through final reconstruction. Their specialized team manages both mitigation and rebuilding phases.
They collaborate directly with insurance adjusters on your behalf. This makes the claims process seamless and removes administrative burden from property owners.
Oregon Restoration uses advanced filtration systems to remove airborne mold spores. They apply environmentally safe products that eliminate mold without harsh chemicals.
Their comprehensive approach addresses both visible mold and underlying causes. This prevents future mold growth and protects your investment long-term.
#9. Pure Maintenance Portland – Best for Patented Non-Toxic Mold Removal Technology
Key Highlights:
- Patented VaPure dry fog technology for one-day mold removal without demolition
- EPA-registered, non-toxic treatment safe for families and pets
- Lifetime warranty on mold removal services with comprehensive testing options
Pure Maintenance Portland brings innovative technology to mold treatment. Their patented dry fog system eliminates mold from every conceivable space without tearing apart your home.
The VaPure system uses particles so small they cannot condense on surfaces. The sterilant dwells in the air and permeates all areas including hard-to-reach spaces.
This method is completely non-toxic and family-friendly. You can return home the same day without worrying about harsh chemical residues.
Pure Maintenance provides both air testing and ERMI testing. This gives you a complete picture of your indoor environment before and after treatment.
Their lifetime warranty demonstrates confidence in their process. If mold returns, they will retreat your property at no additional cost.
#10. Great Northwest Environmental – Best for Comprehensive Environmental Hazard Testing
Key Highlights:
- Specializes in asbestos, mold, radon, and lead testing throughout Oregon and Washington
- 24/7 service availability with free consultations and competitive pricing
- Certified, licensed, and insured with comprehensive coverage including errors and omissions
Great Northwest Environmental provides complete environmental testing solutions. They handle multiple hazards that commonly affect Portland area properties.
Their expertise covers asbestos sampling and surveys, lead paint assessment, mold air quality sampling, and radon testing. This one-stop approach saves time and coordination.
The company serves homeowners, contractors, property managers, and government agencies. They understand different needs across residential, commercial, and industrial sectors.
Great Northwest Environmental offers convenient drop-off or pick-up services. This flexibility makes sample collection easy regardless of your schedule.
Their 24/7 availability means you can contact them any time. Quick turnaround on reporting helps you make informed decisions about your property.
How Much Does Mold Testing Cost in Portland?
Mold testing costs in Portland typically range from $200 to $600 depending on the property size and number of samples needed. A basic inspection with two to three air samples usually costs around $300 to $400.
More comprehensive testing including ERMI testing or multiple rooms can reach $500 to $800. Some companies offer package deals that include both inspection and testing services.
Many Portland mold testing companies provide free visual inspections. They assess your situation and recommend appropriate testing based on what they observe.
The investment is worthwhile considering Portland’s damp climate. Catching mold early prevents expensive remediation and protects your family’s health.
Always ask about what is included in the quoted price. Some companies bundle lab fees while others charge separately for analysis.
How Long Does Mold Testing Take in Portland?
The actual mold testing process typically takes one to three hours depending on property size. An inspector will examine your entire home including attics, crawl spaces, and basements.
They use moisture meters and thermal imaging to identify problem areas. Air samples are collected from multiple rooms plus one outdoor sample for comparison.
Lab results usually come back within three to five business days. Some companies offer rush processing for next-day results if you need answers quickly.
The inspection itself is non-invasive and will not disrupt your daily routine. You can remain in your home during the testing process.
After receiving results, the company will explain findings and answer questions. They provide recommendations for next steps if elevated mold levels are detected.
Can Portland’s Rainy Weather Cause Mold Problems?
Portland’s climate creates ideal conditions for mold growth with an average of 39 inches of rain annually. The combination of moisture and moderate temperatures allows mold to thrive year-round.
Homes with poor ventilation are especially vulnerable. Bathrooms, crawl spaces, and basements often develop mold issues from inadequate air circulation.
Water intrusion from roof leaks or foundation issues compounds the problem. Even small leaks can create enough moisture for significant mold colonies.
Regular inspections help catch problems early. Portland homeowners should check vulnerable areas several times per year especially during wet seasons.
Proper ventilation and moisture control are your best defenses. Running exhaust fans, using dehumidifiers, and fixing leaks promptly prevents most mold growth.
Professional testing provides peace of mind that your indoor air quality remains healthy. This is especially important for families with allergies, asthma, or other respiratory conditions.