At O2 Mold Testing, we believe that every home and business deserves clear, reliable information about indoor conditions. Mold can quietly damage materials and create indoor conditions that may raise concerns long before it becomes visible. That is why our mission has always been simple: to deliver accurate, science-based mold testing services that give people clear results and straightforward next-step guidance.

O2 Mold Testing began in 2005 as a small local team dedicated to investigating suspected hidden mold conditions in Reston, VA and across the DMV area. Over time, our reputation for precision, reliability, and care helped us expand into new regions across the country. Today, we proudly serve homeowners, property managers, and business owners in multiple states, helping them make informed decisions about their indoor environment.
We combine the resources of an established operator with the focus of a specialized mold inspection and testing provider. What started with one city and a few inspectors has grown into a nationwide network built around consistent protocols, certified training, and clear reporting.
At O2 Mold Testing, our strength lies in our people. Each technician is trained and certified to perform careful, science-based inspections. Our network includes professionals with credentials such as Certified Microbial Investigators (CMI), Indoor Air Quality Association (IAQA), IICRC-certified Building Moisture Inspectors (BMI), and ACAC-accredited professionals with deep expertise in mold detection and indoor air quality testing.
Our team includes:
Certified Microbial Investigators (CMI)
Indoor Air Quality Association (IAQA)
IICRC-certified
Building Moisture Inspectors (BMI)
ACAC-accredited professionals
with deep expertise in mold detection and indoor air quality testing.
Among our specialists is Luther Litchfield, a respected mold inspection and testing expert who also contributes educational insights to our blog. His field experience and technical knowledge reflect the professionalism that defines every member of our team - careful, thorough, and committed to helping you understand conditions that may affect the building.

We use professional-grade equipment to uncover what the eye cannot see. Thermal imaging cameras can help identify temperature patterns that may be consistent with moisture behind walls or beneath flooring. Air sampling devices capture airborne spores for laboratory analysis. Moisture meters and surface sampling pinpoint areas of concern before they become major problems. Every test is designed to support accurate documentation and clear, easy-to-follow reporting.



O2 Mold Testing proudly serves numerous communities nationwide, including major metropolitan areas such as the District of Columbia, Baltimore, New York, New Jersey, Miami, and Dallas-Fort Worth. Our teams operate locally to support timely scheduling and region-aware inspections. Wherever we work, our goal remains the same: to provide accurate testing and dependable guidance that helps people make informed decisions.
We treat every property as if it were our own. From the first call to the final report, we are committed to professionalism, transparency, and care. Our goal is not only to identify mold, but to help you understand what was observed and what steps may be appropriate next.
Take the first step toward clearer answers about your indoor environment. Contact O2 Mold Testing today to schedule your inspection or request a consultation with one of our certified specialists.