Open Accessibility Menu
The Reliable Results You Need, When You Need Them Drug, Alcohol,
and DNA Testing

Also offering Non-Invasive Prenatal Paternity (NIPP) Testing
Fastest Labs McAllen
Today's Hours: 9:00 AM - 5:00 PM See More Hours
1205 E Hackberry Ave
McAllen, TX 78501
(956) 625-4279
Walk-ins Welcome! After hours and post-accident 24/7 service available.


Clean, Fast Testing. Reliable Results.

When you need drug, alcohol, or DNA testing in McAllen, turn to the professionals at FastestLabs®. With more than a decade of industry experience, our team of certified collection agents can handle a wide range of personal testing needs, including random employee drug testing, DOT-compliant drug and alcohol testing, paternity and maternity testing, immigration DNA testing, pre-employment screenings and background checks, adoption DNA testing, and much more. Whether you are an individual, a small business owner, the manager of a large company, the director of an athletic league, or the head of a volunteer organization, we are happy to work with you to find a personalized testing solution that meets your unique needs.

Why You Should Choose Fastest Labs

At Fastest Labs McAllen, we are committed to our clients. We go above and beyond to make sure that your drug, alcohol, or DNA testing service is a positive, comfortable experience.

We do this by offering:

  • Clean lab facilities
  • Fast wait times
  • Instant test results
  • Complete accuracy
  • Mobile testing
  • Quality customer care
  • Affordable pricing

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

Sign in with iPad
  • Fastest Labs building
    Find Your
  • Fastest Labs online appointment
    Request Your
  • Fastest Lab rep assisting you
    Visit Your Nearest
    Fastest Labs
  • Handing a patient the results
    Quickly Receive
    Your Test Results

McAllen DNA & Drug Testing

Reliable, Easy McAllen Lab Testing Services

No other testing lab in McAllen meets our level of customer service, speed, or accuracy. We proudly offer unparalleled drug, alcohol, and DNA testing services throughout the region, all at the very best prices. We even work to meet or beat our competitors’ rates.

When you visit our clean, state-of-the-art lab, our friendly and professional staff will assist you promptly. We’re available to answer your questions and address your concerns throughout the entire process to ensure that your experience with us is entirely enjoyable.

Ready to schedule your drug, alcohol, or DNA test? Contact Fastest Labs McAllen at (956) 625-4279 today to get started!

Fastest Labs rep cutting patient's nails

Our Partners

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

Request an Appointment

Walk-ins and same day appointments are welcome! Please call to inquire about weekend and after-hour appointments.
  • Please enter your first name.
  • Please enter your last name.
  • This isn't a valid phone number.
    Please enter your phone number.
  • This isn't a valid email address.
    Please enter your email address.
  • Please select a current date.
  • Please select a desired time.
*Indicates required field