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TDM Mold Inspection & Testing Services

"Where Expertise Meets Integrity."

Proudly Serving Washington, DC, Maryland, and Virginia

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Meet Our Team!

Derrick D. Johnson

Sheress Y. Belton

Tyren K. Johnson

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Hailing from Fort Walton Beach, Florida, Tyren K. Johnson serves as the Director of web services for TDM. In addition to conducting mold inspections, Tyren manages the team’s digital presence—maintaining the website, optimizing user experience, and ensuring that online tools and resources run smoothly. His blend of technical expertise and field knowledge ensures both the digital and on-site aspects of TDM’s mission are carried out with precision and care.

Pittsburgh native, Derrick D. Johnson is a 20 Year + Service-Disabled Veteran and Certified Indoor Environmental Consultant (CIEC). As founder of TDM, he combines his military discipline and environmental expertise to help families address mold-related health and housing concerns with care and professionalism.

Washington D.C native, Sheress Y. Belton is the Director of community outreach for TDM , and a Certified Mold Inspector. With a strong background in environmental assessments and client advocacy, she plays a vital role in both field operations and outreach. A natural communicator and social butterfly, Sheress is known for her ability to connect with others and make clients feel informed, comfortable, and supported.

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