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The Reliable Results You Need, When You Need Them Drug, Alcohol,
and DNA Testing
Fastest Labs NW San Antonio
Today's Hours: 8:00 AM - 5:00 PM See More Hours
5718 University Heights Blvd
Suite 105, San Antonio, TX 78249
(210) 361-6497
*We will be closed on 5/30* Walk-ins Welcome! After hours and post-accident 24/7 service available.


Fast, Accurate Drug & DNA Tests Near You

Need to verify the paternity of your child? Looking for court-admissible post-accident alcohol testing? Interested in setting up an ongoing random employee drug testing program? Fastest Labs NW San Antonio can help you with all of these and more! With a decade of experience in the industry, our testing lab is able to provide a wide range of drug, alcohol, DOT, paternity, and DNA testing services in Northwest San Antonio and beyond. We can even help you create, implement, and manage a drug and alcohol policy for your workplace that is compliant with Department of Transportation regulations.

What sets our testing lab apart?

  • Multiple testing methods
  • Short waiting times
  • Instant test results
  • Complete accuracy
  • Certified Collectors
  • Clean, comfortable Facilities
  • Mobile, on-site testing
  • Affordable pricing
  • Superior customer service

Frequently Asked Questions (FAQs)

What Types of Drug Tests Do You Offer?

At Fastest Labs NW San Antonio, we offer various drug testing services, including urine, saliva, hair and more.

How Long Will it Take to Get the Results?

In most cases, we provide results a few minutes after the test is administered. Although the majority of our tests provide instant results, we may need to perform further analysis on positive test results in order to confirm our findings. This can take an additional 24-48 hours or more.

Are All DNA Tests Court Admissible?

Not all DNA tests are created equal. Some DNA tests offered cost less and are not court admissible. However, Fastest Labs NW San Antonio offers a DNA testing option that is can be used in court. Our court admissible DNA tests are fast, accurate, and accredited by the AABB. Our company keeps close track to secure sampling and accuracy of our results.

What Types of Drug Testing Methods Do You Use?

Fastest Labs of Northwest San Antonio utilizes a variety of highly accurate testing methods that includes saliva, hair, urine, and more.

What Other Types of Testing Do You Offer?

Fastest Labs NW San Antonio also provides:

  • Athletic drug and alcohol testing
  • Background checks/pre-employment screening
  • Court admissible DNA, drug, and alcohol testing
  • DNA testing for immigration matters
  • Government testing services
  • Military testing services for federal civilian employees
  • Military testing services for U.S. Coast Guard members

Visit our video center to see our technology and tour our labs

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Check Out Our Special Offers

$10 Off Paternity Test
*New clients only. Applies to legal paternity test only. Not valid with any other offer. Must print coupon to redeem.
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Experience the Fastest Labs Difference

Reliable, Easy San Antonio Lab Testing Services

At Fastest Labs, we work hard to provide the fastest, friendliest, and cleanest testing lab in NW San Antonio. We not only provide top-quality paternity, employee, drug, alcohol, and DNA testing services, we also offer unparalleled customer service and personalized attention.

Our certified professional collectors are able to handle a wide range of testing services, including complicated matters involving DOT compliance, legal admissibility, immigration DNA testing, and more. Our services are always discreet, non-invasive, and we take the utmost care to protect your confidentiality concerns.

Looking for drug and DNA testing in NW San Antonio? Contact us at (210) 361-6497 today to find out how we can help!

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Our Partners

  • ExperTox
  • Lab Corp
  • Clinical Reference Laboratory
  • Alere
  • Quest Diagnostics
  • DISA
  • Omega Labs
  • Medtox Laboratories
  • Psychemedics

Request an Appointment

Walk-ins and same day appointments are welcome! Please call to inquire about weekend and after-hour appointments.
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