Independent Inspection & Advisory · Leesburg, VA
Mold & Biotoxin Inspection in Leesburg, VA
Straight answers for Leesburg homeowners and renters — from an inspector who never does the cleanup and never takes a referral fee.
NORMI Certified Microbial Inspector · HBIA Certified Microbial Biotoxin Assessor · IICRC Affiliated · 22+ years
Written & reviewed by W. David Winstead · Last updated 15 September 2026
Call (866) 807-5313
[email protected]
Why mold shows up in Leesburg
Leesburg is a study in contrasts, and both ends of it invite moisture problems. Its walkable Historic District is lined with 18th- and 19th-century brick and stone buildings that predate any modern moisture control, while the subdivisions that have exploded around town bring the opposite risk — tightly sealed new construction where trapped humidity or a single construction-phase leak can start trouble behind fresh drywall.
Set in humid Northern Virginia at the edge of Loudoun’s horse country, Leesburg homes contend with damp basements and crawl spaces, seasonal humidity swings, and the moisture quirks of both centuries-old masonry and modern building envelopes. Historic or brand-new, an independent read on your home’s moisture is worth having.
Most inspectors find mold. We find answers.
AMOLDBUSTER inspects and advises only — no remediation, no referral fees, ever. Because we don’t profit from the cleanup, our only job in Leesburg is to tell you the truth: what’s happening, why, and a clear action plan. We go deeper than a standard spore count for CIRS, MCAS, Lyme, and immune-compromised clients other inspectors overlook.
Every air sample comes with an outdoor control
Indoor spore counts cannot be meaningfully interpreted without a contemporaneous outdoor control, because indoor spore populations derive substantially from outdoor air. A report showing indoor counts with no outdoor reference is not defensible. Many firms skip it on screening work to save a sample. We do not, and we never have.
WDW
W. David Winstead
Founder & Principal Inspector · 22+ years
NORMI Certified Microbial Inspector · HBIA Certified Microbial Biotoxin Assessor · IICRC Affiliated. Not a Certified Industrial Hygienist and not held out as one.
What you receive
A thorough walkthrough with moisture mapping and, where warranted, air or surface sampling sent to an independent accredited laboratory — then a written Field Findings Summary in plain English: what we found, what it means, and a prioritized blueprint you can hand to your physician, attorney, or a remediation contractor of your choosing. Serving Leesburg and nearby Lansdowne, Brambleton, Purcellville, and greater Loudoun County. Guided virtual investigations are available in 47 states, and consultation is available in all 50 states and the District of Columbia.
Nearby areas we also serve
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What we will and will not say about your home
We do not certify a space. We will not describe any building or room as safe, healthy, or suitable for any person or for any named condition. We describe conditions found and work performed, and we issue no clearance letters and no letters of suitability.
There are no accepted thresholds. There are currently no generally accepted regulatory or scientific threshold exposure limits for mold or microbial contamination in indoor environments. We interpret results contextually and will not certify a property against a threshold that does not exist.
We are not physicians. We do not diagnose, treat or interpret clinical laboratory results, and we will not state that any environmental finding caused any symptom or condition. Those judgments belong to licensed healthcare professionals.
Request a Leesburg assessment
Tell us what’s going on — we typically reply within one business day.
Educational & informational use. AMOLDBUSTER is an independent indoor environmental health and assessment service — inspection and consultation only, no remediation, no referral fees. This page does not constitute medical or legal advice, diagnosis, or treatment. Always consult your physician regarding any medical condition.
Healthier Homes. Healthier Families. · On-site assessments in MD, VA, WV, PA, DE · Guided virtual investigations in 47 states · [email protected] · (866) 807-5313
© 2026 WeSpiritus LLC d/b/a Apollo Environmental Solutions / AMOLDBUSTER. All rights reserved. · Reviewed 15 September 2026