At Houston Onsite DT, we provide fast, accurate, and professional onsite drug and alcohol testing using DOT-approved breath alcohol analyzer machines. Our certified technicians come directly to your workplace, helping employers meet compliance requirements while minimizing downtime and disruptions. Whether you need pre-employment, post-accident,, reasonable suspicion, random, or return-to-duty testing, our reliable mobile service delivers timely results with the highest level of professionalism, confidentiality, and accuracy-keeping your workplace safe and compliant.

We can help you with DOT & Non-DOT Drug Testing, POCT drug testing, Alcohol Testing, Hair, and Oral Fluid.

Proudly serving Houston and Companies Nationwide.

Email us at: support@houstononsitedt.com or give us a call.

BUILDING SAFER WORKPLACES. ONE TEST AT A TIME. ON SITE. ON TIME. EVERY TIME.