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Fastest Labs South Denver
The Reliable Results You Need, When You Need Them Drug, Alcohol, and DNA Testing
Fastest Labs South Denver
Fastest Labs South Denver
6810 South Dallas Way Greenwood Village, CO 80112
(720) 924-4333
  • Today's Hours: Closed
  • Fastest Labs South Denver
    • Monday
      9:00 AM - 5:00 PM (We’re Still Open – Appointments Encouraged!)
    • Tuesday
      9:00 AM - 5:00 PM (We’re Still Open – Appointments Encouraged!)
    • Wednesday
      9:00 AM - 5:00 PM (We’re Still Open – Appointments Encouraged!)
    • Thursday
      9:00 AM - 5:00 PM (We’re Still Open – Appointments Encouraged!)
    • Friday
      9:00 AM - 5:00 PM (We’re Still Open – Appointments Encouraged!)
    • Saturday
    • Sunday
    Walk-ins Welcome!
    After hours and post-accident
    24/7 service available.
Walk-ins Welcome!
After hours and post-accident
24/7 service available.


Committed to Superior Quality

With more than a decade of experience in the personal testing industry, Fastest Labs® has built a reputation for superior quality drug, alcohol, and DNA testing in South Denver and throughout the surrounding areas. We are proud to offer the cleanest, fastest lab facilities and the friendliest, most skilled staff. Whether you need random drug testing, alcohol testing, genetic reconstruction, paternity testing, or general DNA testing, we are happy to help you understand your options and find a personalized solution that meets your needs. We understand that the results of your test are extremely important, which is why we take the utmost care to provide you with fast, accurate test results that you can trust.

Our Drug, Alcohol & DNA Testing Methods

When it comes to drug and alcohol testing, you may wish to screen for long-term use, very recent consumption, or both. Additionally, when conducting a DNA test, you may be looking for any number of answers, including questions of paternity, maternity, twin zygosity, personal genealogy, and much more. At Fastest Labs South Denver, we offer a variety of testing methods that can answer your questions and help you get a clear picture of a person's genetic history or drug and alcohol use background. Depending on your specific testing goals, our certified collectors will help you select the testing method that's right for you.

Our various testing methods typically involve collecting one of the following samples:

  • Saliva
  • Urine
  • Hair
  • Finger/toenails
  • Sweat
  • Skin
  • Breath

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

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Call (720) 924-4333 today to learn more about our testing services in Greenwood Village. You can also request an appointment online with us!
Check Out Our Special Offers
  • Special Offer
    $5 Off Breath Alcohol *New clients and personal testing only. Not valid with any other offer. Must print coupon to redeem.
  • Special Offer
    $5 Off Hair Test *New clients and personal testing only. Not valid with any other offer. Must print coupon to redeem.

Your Simple Testing Solution

  • 1
    Request Your Appointment
  • 2
    Visit Your Nearest Fastest Labs
  • 3
    Quickly Receive Your Test Results

South Denver DNA & Drug Testing

Reliable, Easy Greenwood Village Lab Testing Services

Once the sample or samples have been collected, we will carry out thorough, rapid analysis and provide you with the results. In most cases, the results of your test are available instantly, though we do recommend additional testing for any non-negative drug or alcohol tests. We take extensive care to preserve test accuracy by ensuring a secure chain of command, proper sample isolation, and taking measures to reduce the risk of contamination or tampering. This means that you can fully rely on the results of your test. In fact, most of our testing services are legally-admissible and adhere to strict regulations set forth by the Department of Transportation.

Need fast, accurate drug, alcohol, or DNA testing in South Denver? Call us at (720) 924-4333 to schedule your service today! Walk-in and same-day appointments are available.

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Request an appointment online or call (720) 924-4333 today!
We look forward to assisting you.
Why Us?

Hear From Our Customers

  • “In our business, we have to run drug screens on all new employees. I have used Fastest Labs several times and they're friendly, efficient and you have the results quickly. New employees have commented that it was nice to not have to wait for a long time to get it done. I highly recommend Fasted Labs.”
    - Kim Peterson
  • “We drug screen all prospective new employees and FASTEST Labs of South Denver has done a great job for us. They are friendly, professional and we get our results very quickly. We are able to make decisions and get Agents on the job quickly because of their fast and professional services. If you need drug testing services, this is the place to go. I highly recommend them.”
    - John Kuenning
  • “The team at FASTEST Labs is an absolute pleasure to work with. Carlene and her team are professional, know their stuff, are thorough and super efficient. They get the candidates in and out quickly, so they don't waste time waiting for their turn. I highly recommend them! Side note: they're a lot of fun to work with as well!”
    - Jackie
Our Partners
  • Quest Diagnostics
  • Lab Corp
  • DISA
  • Alere
  • Omega Labs
  • Medtox Laboratories
  • Clinical Reference Laboratory
  • Psychemedics
  • ExperTox
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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9:00 AM - 5:00 PM