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On-Site Testing Services in Denver, CO

Convenient Workplace Drug and Alcohol Testing With Reliable Results

When you are responsible for keeping a workforce safe and productive, sending people across the city for drug and alcohol tests can feel like a full-time job. As a local on-site testing company Denver employers rely on, Fastest Labs South Denver brings the lab directly to your workplace so your team can stay focused on the job.

We come to your location with a clean, organized setup and certified collectors, then complete testing with as little disruption as possible. Our goal is to help you protect your business, support your policies, and keep schedules on track, all while providing a comfortable experience for your employees.

We work to deliver fast, accurate results using proven methods and the latest technology. You get convenient mobile service backed by the same standards you would expect in one of our facilities.

Streamline your testing requirements with our on-site drug and alcohol testing services in Denver, CO. Get started by calling (720) 924-4333 or contact us online now.

Why Choose Fastest Labs South Denver for On-Site Testing Services?

Flexible Scheduling 

Coordinating testing for a busy team can be challenging, especially when you are working around shifts, tight deadlines, and traffic. Our mobile on-site testing Denver employers use is designed to remove that burden. Instead of sending employees to a facility, we bring our certified collectors to you at a time that fits your operation.

Employment Testing Services Brought to Your Location

We regularly support pre-employment events, random testing cycles, reasonable suspicion situations, and ongoing programs for safety-sensitive positions. Whether you are a small business with a handful of employees or a larger operation with multiple crews, we tailor the visit so that people can get back to work quickly.

Fast, Organized Testing Setup That Minimizes Downtime

Our team arrives with everything needed to set up a clean, efficient testing area using your existing restrooms or a private space. We focus on keeping wait times short, respecting privacy, and maintaining a professional tone that reflects well on your company. Employees complete testing on site, then return to their duties instead of spending time on the road.

Because our mobile services follow the same standards as our facilities, you receive clear documentation, reliable collection procedures, and results that support your policies or regulatory requirements. The result is a smoother testing process that fits into your workday instead of disrupting it.

How Our Mobile Testing Service Works

Call for Assistance with Scheduling and Testing Setup Options

Knowing what to expect makes it much easier to plan an on-site testing event. When you contact Fastest Labs South Denver, we start by discussing your goals, the number of employees you expect to test, and any timing requirements. Together, we choose a date and time that works with your schedule, including early hours or off-peak windows when available.

Before the visit, we review what you will need to provide, such as access to restrooms or a private room where employees can check in. Our team brings the necessary supplies for collections, secure storage, and paperwork, so you are not responsible for any technical details. We keep instructions simple and clear for both managers and employees.

Our Team Arrives for Testing Setup and Sample Collections

On the day of testing, our collectors arrive, set up a clean, organized testing area, and begin calling employees according to your plan. We verify identity, review required forms, and complete collections while maintaining confidentiality and professionalism. Employees typically spend only a short time away from their work area.

Sample Processing and Results Delivery

After collections are finished, we handle packaging and transfer according to established chain-of-custody procedures. Results are then processed through our standard systems, and you receive reporting in line with your program design. Throughout the process, our certified collectors and administrative team work to keep communication clear so you always know the status of your event.

On-Site Drug Testing Options

Every workplace has different testing needs, which is why we offer several on-site drug testing options during a mobile visit. Our collectors can perform urine, oral fluid, and hair collections at your location, and we help you choose the approach that matches your company policy and goals for detection windows.

Many employers rely on urine collections for standard workplace programs, such as pre-employment or random testing. Others prefer oral fluid testing when they want collections that are easy to observe, or hair collections when they are focused on patterns of longer-term use. We explain the practical differences in clear language so you can make informed choices.

When you request on-site drug testing services from our team, we coordinate collection forms, identity checks, and secure handling so that each sample is tracked from employee to laboratory. Our collectors follow recognized protocols to help protect the integrity of your program.

On-Site Alcohol Testing For Employers

Alcohol testing often comes up in time-sensitive situations, such as post-accident checks or reasonable suspicion events. Our on-site alcohol testing Denver employers request gives them a way to address these moments quickly at the workplace rather than delaying decisions while employees travel off-site.

During a mobile visit, our collectors can perform alcohol screenings alongside other testing, or they can focus solely on alcohol, depending on what your policy requires. We work with your designated contact to understand the reason for testing and to help maintain a fair, consistent approach for everyone involved.

For safety-sensitive positions or roles that fall under Department of Transportation rules, we strive to align collections with applicable standards. Our collectors are trained to follow strict procedures, including identity checks and detailed documentation, so that your program has support if questions arise later.

Ready to get started with on-site testing in Denver, CO? Call (720) 924-4333 or contact us online to speak with our team about your options.

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
  • “Carlene is very professional and courteous. I would recommend Fastest Labs to anyone who needs drug testing services.”
    - Steve

Frequently Asked Questions

How does on-site testing at my workplace actually work?

We schedule a time that fits your operation, arrive with certified collectors, and set up in your restrooms or a private space. Employees are called in according to your plan, complete collections, and return to work. We handle paperwork, chain of custody, and secure transfer of all samples.

Can your team handle both drug and alcohol testing on-site?

Yes, we can perform drug and alcohol testing during the same visit. We review your policy and goals, then plan collections so everything runs smoothly. Our collectors bring the appropriate supplies and follow clear procedures for each test type while keeping the process simple for your team.

How quickly can we schedule an on-site visit?

Scheduling time depends on your needs and our current calendar, but we work to provide timely options, especially for urgent requests. When you call, we discuss your situation, suggest available windows, and confirm details so you know exactly when our collectors will arrive.

What do we need to provide for a mobile testing setup?

Most employers only need to provide access to appropriate restrooms or a private area where employees can check in. During planning, we explain any space considerations and answer questions. Our team brings collection supplies, forms, and secure storage so your preparation stays straightforward.

Are your on-site tests accurate and compliant with regulations?

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Your Simple Testing Solution

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    Request Your Appointment
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    Visit Your Nearest Fastest Labs
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    Quickly Receive Your Test Results