Science-Based Testing. Unbiased Results. Clear Answers.
WO₂ Environmental Diagnostics brings engineering-level rigor and certified expertise to every air, water, and mold investigation across Stafford County and Northern Virginia.
Science-based diagnostics for the air you breathe, the water you drink and the moisture hiding behind your walls.
Indoor Air Quality(IAQ)
Detection and Analysis of: Mold Spores, VOCs, Particulate Matter, CO/CO₂, and HVAC Contamination.
Learn more →Mold, Moisture & Water Intrusion Investigations
Comprehensive mold inspections, thermal imaging, moisture mapping, and hidden water intrusion analysis.
Learn more →Water Sampling and Testing
Screening for bacteria, heavy metals, PFAS, and chemical contamination in well water.
Learn more →Post-Remediation Verification(PRV)
Independent clearance testing once remediation work is complete.
Learn more →Real Estate Environmental Inspections
Pre-purchase environmental due diligence for buyers, sellers & investors.
Learn more →Not sure what you need?
Tell us what's going on like a smell, a symptom or a stain and we'll recommend the right test.
Ask us →We test. We don't sell you a fix.
Because we're not a remediation company, our results aren't biased toward finding (or missing) a problem to sell you on. You get an independent read laboratory-certified analysis and a report you can actually use for your health, your negotiation or your peace of mind.
Schedule Inspection
Book online or by phone. We'll confirm timing within one business day.
On-Site Assessment
Our technician inspects the property and identifies key areas of concern.
Sample Collection & Lab Analysis
Samples go to an accredited third-party lab for verified results.
Receive Results & Recommendations
Get a clear report with findings and next steps in 48–72 hours.
Serving Stafford County & Northern Virginia
Residential homeowners, property managers, real estate professionals, investors, and remediation partners throughout Stafford County, Fredericksburg, Spotsylvania, Prince William, Fairfax, Arlington, Alexandria, Loudoun, and Fauquier.
Get answers about your property.
Book an inspection or ask a question. We'll help you figure out the right test for your situation.