DNA Testing

Legal & non‑legal DNA testing handled with confidentiality.

DOT Drug Testing

DOT‑compliant 5‑panel testing for regulated employers.

Non‑DOT Drug Testing

5, 9 & 10 panel drug testing for individuals & businesses.

Reliable Testing Solutions Designed for Accuracy, Speed, and Peace of Mind

At StephLab Services, we provide professional mobile drug and DNA testing services for individuals, employers, and organizations across Texas. Our process is simple, discreet, and compliant, ensuring accurate results while minimizing disruption to your schedule.

Whether you need DOT-regulated testing, non-DOT screening, or legally admissible DNA testing, our trained collectors and trusted laboratory partners deliver results you can rely on.

Our Services

DOT Drug Testing

DOT-compliant 5-panel drug testing for regulated employers, owner-operators, and safety-sensitive positions.

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Non-DOT Drug Testing

Flexible non-DOT testing options, including 5-panel, 9-panel, and 10-panel tests for employers, individuals, and private needs.

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Oral Fluid Drug Testing

Observed oral fluid testing for accurate and less invasive screening.

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Rapid Drug Testing

Same-day rapid drug testing solutions for urgent needs, on-site testing, and immediate screening requirements.

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DNA Testing Services

Professional DNA collection services, including legal, non-legal, and family relationship testing.

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Immigration DNA Testing

USCIS-compliant immigration DNA collection services for family-based immigration cases.

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Why Clients Choose StephLab Services

Mobile testing at your location; home, workplace, or job site
Confidential, secure, and professional collections
DOT and Non-DOT compliant procedures
Clear communication and guided booking process
Trusted lab partnerships for accurate results
Flexible scheduling and fast turnaround times

How It Works

Step 1 – Schedule Your Test

Step 2 - Mobile Collection

Step 3 - Results & Follow-Up

Proudly Serving Communities Across Texas

StephLab Services provides mobile testing services throughout Texas. Whether you’re an individual, a small business, or a large employer, we come to you, saving time and simplifying compliance.

Professional Standards You Can Rely On

Trained and certified collectors
Secure handling of all samples
Strict confidentiality protocols
Partnered with accredited laboratories
Clear documentation and compliance support

TESTIMONIALS

What Client Our Says About Us

StephLab Services made the entire process easy and professional. The mobile service saved us time and kept everything compliant.

— John M.

StephLab Services was professional from start to finish. The mobile service made things very convenient, and the entire process was explained clearly.

— Sara K.

I needed a reliable testing service, and StephLab Services delivered. Scheduling was easy, the collector arrived on time, and everything was handled discreetly.

— Carlos Garcia

Frequently Asked Questions

What is the difference between DOT and Non-DOT testing?

DOT testing follows federal regulations for safety-sensitive roles, while non-DOT testing is used for private or employer-specific screening.

Do you offer mobile testing?

Yes. We provide on-site mobile testing across Texas.

Are DNA tests confidential?

Absolutely. All DNA collections are handled with strict confidentiality and secure procedures.

How long does it take to receive results?

Turnaround time depends on the test type. We provide clear expectations at the time of booking.

Do I need an appointment for mobile testing services?

Yes, appointments are required to ensure proper scheduling and availability. This allows us to provide timely, professional service and prepare the correct testing materials for your needs.

Is my information kept confidential?

Absolutely. All client information, test results, and documentation are handled with strict confidentiality and in accordance with applicable privacy and compliance standards.