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Mold Testing Services of Oregon
Certified Mold Testing in Portland.
Clear Results. No Guesswork.
MICRO-certified mold inspections for Portland-area homes and businesses. Independent testing only — no remediation, no conflict of interest.
5.0 stars — 280 verified reviews
How We Work.
Call for a Tailored Quote
Tell us about your property and concerns. We give you a straight price based on what your situation actually needs.
Certified Inspector Shows Up
Garrett personally handles most inspections — thermal imaging, moisture detection, and lab-grade sampling on-site.
Clear Results. You Know What to Do.
Accredited lab results with plain-language findings. You leave knowing exactly what's in your home and what to do next.
Serving Portland Metro and Southwest Washington
Our Services
Mold & Mycotoxin Testing
Lab-grade mold and mycotoxin sampling for homes and light commercial. RealTime Labs analysis. Results you can act on.
Indoor Air Quality Testing
Over 90% of homes have at least one air quality problem. We find what's affecting your health, comfort, and safety.
Certified Radon Testing
Radon is the second leading cause of lung cancer. We test your home accurately so you know your risk and what to do.
Most inspectors also do the cleanup
so you never know if the results are real.
Mold Testing Services of Oregon is a MICRO-certified, family-owned mold inspection company based in Portland, Oregon serving residential and light commercial clients throughout the Portland Metro area and Southwest Washington. Owner Garrett Dayfield has conducted thousands of inspections since 2005 and performs no remediation — keeping every result objective and independent.
MICRO-certified and fully insured — recognized by the City of Portland
Independent testing only — no remediation means no conflict of interest
Accredited lab analysis through EmLab P&K, Eurofins, and RealTime Labs
Family owned since 2002 — Garrett personally handles most inspections