Why Fresno Clients Trust Pillar Lab Services
Who We Are
A Team Committed to Excellence
Why We Started
Pillar Lab Services began with a problem worth fixing. Getting a drug or DNA test usually meant taking time off, driving across town, and sitting in a crowded waiting room. Dalesia Malcolm knew it didn't have to work that way. With a background in compliance, she understood the rules behind testing and the frustration of getting it done. So she built a mobile service that comes to you instead. The goal was simple: make accurate testing easy to reach for people and companies across Fresno and Madera.
Mobile and Made Local
We do things differently than a walk-in clinic. Pillar Lab Services is woman-owned and fully mobile, so we bring testing right to your home, office, or job site. That saves you a trip and keeps personal matters private. It also helps local employers keep their crews on the clock instead of off running errands. We serve Fresno, Madera, Chowchilla, Merced, and the nearby Central Valley towns. You get accurate drug and DNA testing on your schedule, handled with care and done by the book.
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Our Track Record
Numbers That Speak for Themselves
Your Dedicated Specialist
Dalesia Malcolm
Dalesia runs Pillar Lab Services from the ground up. She handles testing personally, drawing on a compliance background to keep every collection accurate and properly documented. Her approach is straightforward: show up on time, respect your privacy, and get the details right the first time.
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.
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Peace of Mind Paternity Testing
Sometimes you just need to know. This test gives you accurate results without legal paperwork.
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Grandparentage DNA Testing
When a parent isn't available, grandparents can help confirm a biological relationship.
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Immigration DNA Testing
We provide AABB-style collection that meets USCIS and embassy requirements.
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Avuncular DNA Testing
This test checks whether a child is biologically related to an aunt or uncle.
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DOT Drug Testing
Employers under federal rules need testing that follows DOT regulations exactly.
Learn MoreNeed 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) 668-0793DISCOVER WHAT OUR CUSTOMERS HAVE TO SAY ABOUT US
REVIEWS
How We Get You Tested — Start to Finish
Call and Tell Us What You Need
It starts with a phone call to (559) 668-0793. We listen to what you're after, whether it's a legal paternity test, immigration documentation, or DOT screening for your company. Then we explain your options in plain terms and confirm which test fits your situation. No guesswork, no upsell. You leave the call knowing exactly what to expect and what it costs.
We Come to You
Pick a time and place that works for you. We bring the collection to your home, office, or job site anywhere in our service area. Everything is handled with proper chain-of-custody when your case requires it, so your results stay valid. The visit is private, careful, and quick. You don't lose half a day sitting in a waiting room across town.
Get Your Results
After collection, your sample goes to the lab for processing. We keep you in the loop on timing so you're never left wondering. When results are ready, they're delivered to you or sent directly to the agency, court, or employer that needs them. You get clear answers handled the right way, start to finish.
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. A peace of mind test gives you the same accurate answer but can't be used legally.
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. Results are sent directly to the requesting agency.
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.
Turnaround depends on the type of test. 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.
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.
Call us at (559) 668-0793 to book. We're open seven days a week, 8am to 6pm. Same simple process for personal tests and company screening.


