Drug & DNA Testing
Mobile DNA and Drug Testing Across Fresno and Madera
People. Answers. A Healthier Tomorrow.
Accurate testing with professionalism, privacy, and care — delivered to your home, office, or job site.
Our Services in California
DNA and Drug Testing, Done Your Way
Legal Paternity DNA Testing
Need results a court will accept? Legal paternity testing follows a strict chain-of-custody process, so your results hold up for custody, child support, and birth certificate cases.
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Peace of Mind (Non-Legal) Paternity Testing
Sometimes you just need to know. This test gives you the same accurate results without the legal paperwork, so it's a faster, simpler option for personal answers.
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Grandparentage DNA Testing
When a parent isn't available for testing, grandparents can help confirm a biological relationship. This test compares a child's DNA with a grandparent's to establish family connection.
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Immigration DNA Testing
Immigration cases often ask for proof of a biological relationship. We provide AABB-style collection and documentation that meets the requirements set by USCIS and embassies.
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Avuncular (Aunt/Uncle) DNA Testing
This test checks whether a child is biologically related to an aunt or uncle. It's useful when a possible parent can't take part in testing.
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Sibling DNA Testing
Want to know if you share one or both parents with someone? Sibling DNA testing measures how closely two people are related.
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DOT Drug Testing
Employers under federal rules need testing that follows DOT regulations exactly. We provide compliant collection for safety-sensitive roles in trucking, transit, and more.
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Non-DOT Drug Testing
Running pre-employment, random, or reasonable-suspicion screening? Non-DOT testing lets you set your own panels and policies.
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REVIEWS
Who We Are
A Team Committed to Excellence
How It Started
Pillar Lab Services started with a simple idea: testing should come to you. With a background in compliance, we saw how hard it was for people and companies to get fast, reliable results. So we built a mobile service that meets clients where they are. Today, the focus stays the same — accurate drug and DNA testing that keeps the community safe.
What Makes Us Different
Most testing means driving across town and sitting in a waiting room. We flip that. As a woman-owned, fully mobile service, we bring collection straight to your home, office, or job site across Fresno and Madera. That means less time off work and more privacy for personal tests. You get the same accuracy without the hassle of a clinic.
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Fast results you can trust
Once the lab receives your samples, results are ready within 2–3 business days and sent straight to your email. We partner with AABB and SAMHSA accredited labs to process every sample — so the answers you get are accurate, reliable, and handled to a national standard.
Confidential
Your information stays private. We never share client details without a signed release.
Fast
Results in 2–3 business days, delivered straight to your email.
Reliable
Processed through AABB and SAMHSA accredited labs.
Need answers fast? Need to stay compliant? Can't get to a clinic?
We bring accurate DNA and drug testing right to your door — call today and get scheduled
Call (559) 668-0793Who's This Perfect For
Beyond individuals and families, we provide Legal Paternity and DNA testing services for a wide range of partners across the Central Valley
Our Track Record
Numbers That Speak for Themselves
Why Choose Pillar Lab Services
The Difference is Clear
We Come to You
No clinic. No waiting room. We bring drug and DNA testing to your home, office, or job site anywhere in Fresno, Madera, and the surrounding area. That saves you a trip across town and keeps your day moving. It also gives personal tests the privacy they deserve.
Woman-Owned and Local
Pillar Lab Services is woman-owned and run right here in the Central Valley. You work directly with someone who knows the area and cares about doing right by neighbors. That means clear answers and real accountability. You're never just a number on a form.
Built on Compliance
Pillar Lab Services comes from a compliance background, so the details get done right. From DOT rules to legal chain-of-custody, the process follows the standards your case or company needs. That protects your results and your peace of mind. No cut corners, no guesswork.
Fast and Flexible Scheduling
Open seven days a week, 8am to 6pm, with appointments that fit your schedule. Need testing soon? We work to get you booked quickly, whether it's one personal test or a full crew. You get results without the long wait.
Frequently Asked Questions
Got Questions? We've Got Answers!
Yes. Pillar Lab Services is fully mobile, so we bring drug and DNA testing directly to your home, office, or job site. We serve Fresno, Madera, Chowchilla, Merced, and nearby cities. Just call to set up a time that works for you.
Yes, the main difference is how the sample is collected and documented. A legal paternity test follows a strict chain-of-custody process, so the results can be used in court for custody, child support, or birth certificate matters. A peace of mind test gives you the same accurate answer but can't be used legally. Choose legal if any court or government office is involved.
Immigration DNA testing proves a biological relationship for USCIS or an embassy. The process uses approved collection and documentation, and samples are coordinated between the people being tested, even if they're in different locations. Results are sent directly to the requesting agency. Call us and we'll walk you through exactly what your case needs.
Yes. We provide DOT drug testing that follows federal regulations for safety-sensitive roles in trucking, transit, and other regulated industries. We come to your worksite to collect samples, which keeps your drivers and crew working instead of driving to a clinic. Call to set up testing for one employee or your whole team.
Turnaround depends on the type of test, since DNA and drug panels are processed differently. Once we collect your sample, it's sent to the lab and you're told when to expect results. We keep you updated through the process so you're never left guessing. Call us for the timeline on your specific test.
Yes. When a parent can't take part, we offer grandparentage, sibling, and avuncular (aunt/uncle) testing to help establish a biological relationship. These tests compare DNA between available family members. They're often used for legal, estate, or personal reasons. We'll help you decide who should test for the clearest result.
We serve Fresno, Madera, Chowchilla, and Merced, plus nearby cities like Clovis, Selma, Sanger, Kerman, Atwater, and Los Banos. Because we're mobile, we cover a wide stretch of the Central Valley. If you're not sure whether you're in range, just call and ask. We'll let you know right away.
Call us at (559) 668-0793 to book. We'll ask what type of test you need, confirm the details, and set a time to meet you at your home, office, or job site. We're open seven days a week, 8am to 6pm. Same simple process for personal tests and company screening.