About Us

Zip Drug Testing, LLC. is a 24/7 mobile drug testing service. We are a fast, affordable, and convenient service to assist you in all your drug testing needs. Serving Houston and greater Houston area. 


We offer a variety of tests available to suit your needs such as:

  • D.O.T. testing
  • Non-D.O.T testing
  • Pre-employment
  • Random
  • Reasonable suspicion/cause
  • Post Accident
  • Routine Drug Testing
  • Return to Duty
  • Personal
  • Legal
  • Probation 
  • Follow-up
  • Other


Zip Drug Testing, LLC. is able to test anywhere at anytime.  Save yourself time and money by bringing the testing to you. Ensure the integrity of specimen and collection process to get the best results. 



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