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San Antonio Fastest Labs Drug, Alcohol DOT & DNA Testing

Fastest Labs of San Antonio is your premier drug testing, alcohol testing, DOT and DNA testing lab. We provide services in San Antonio and the surrounding Lackland AFB, Leon Valley, Alamo Heights and Kirby areas. Our San Antonio lab provides certified drug, alcohol, and DNA testing for both private and legal purposes in San Antonio, Texas. Our lab tests are always affordable for businesses, individuals, students, teens, and corporations in San Antonio, TX. In addition to our San Antonio lab, we have additional labs located across the country and can arrange for testing to be performed in nearly any city in the US. 

Additional testing services our San Antonio lab offers include steroid testing, background screening, employee testing, DOT drug and alcohol testing and so much more! For a list of all tests and screens which our San Antonio lab offers click here

 Get Fast Results Today!

Fastest Drug Testing San Antonio

Current Promotions

$10 Off Legal DNA Paternity
Get $10 off our legal DNA paternity test!
$3 Off 10 Panel Urine Test
Get $3 Off a 10 Panel Urinalysis

Why Choose San Antonio Fastest Labs?

  • Certified Technicians

    Our San Antonio drug testing lab techs are certified professional collection agents and certified professional breath and DOT alcohol screening technicians. Learn More

  • Clean San Antonio Facilities

    Our lab is the cleanest and most comfortable drug testing lab in San Antonio, Texas. Learn More

  • Fast Service & Rapid Results

    You will be served within 5 minutes of your arrival. On most tests you will receive immediate results. On lab tests, your results will be ready in less than 24 hours. Learn More

  • Customer Service in San Antonio

    Our friendly San Antonio lab techs are top notch have the highest customer service ratings in the industry. Learn More

  • Affordable San Antonio Pricing

    We have competitive pricing!

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San Antonio Employer Solutions

San Antonio Employee Drug Test Solutions

Need to implement your San Antonio business's drug testing and alcohol testing policy for your employees? Fastest Labs of San Antonio offers the most comprehensive coverage for drug and alcohol testing and programs that can be customized, designed and implementation for your San Antonio, Texas company and employees. Call our San Antonio lab today to find out how you can have a drug-free workplace by using Fastest Labs!


Approved Collection Sites For:

Please check with the lab nearest you as our San Antonio locations each have their own set of affiliations

eScreen Collection Site San AntonioDISA Collection Site San AntonioQuest Collection Site San AntonioLabcorp Collection Site San AntonioExpertox Collection Site San AntonioClinical Reference Laboratory San AntonioOmega Collection Lab San AntonioAlere Collection Lab San AntonioMedtox Collection Lab San AntonioDISA Collection SIte San AntonioPsychemedics Corporation San Antonio