What are the opening hours?

Monday 9am - 12pm 1pm - 5pm Tuesday 9am - 12pm 1pm - 5pm Wednesday 9am - 12pm 1pm - 5pm Thursday 9am - 12pm 1pm - 5pm Friday 9am - 12pm 1pm - 5pm

Fastest Labs

We provide fast, accurate drug, alcohol, and DNA testing services to businesses and individuals in McAllen, TX, and the surrounding areas.

Fastest Labs is a drug, alcohol and DNA lab collection franchise that prides itself on accuracy, reliability, and efficiency. We've been providing lab testing services to employers and individuals for years, and because of our commitment to excellence, we have earned a stellar reputation for professionalism, reliability, and confidentiality. With Fastest Labs, you get accurate results, fast. That's our promise and that's what we deliver. We specialize in providing our expert drug and alcohol testing services to employers and other organizations seeking to implement drug testing programs. We can collect testing samples on site or in our state-of-the-art, clean drug testing facility. We are proud to serve McAllen, Texas, and the surrounding area. We are committed to providing, fast and accurate drug testing services with a smile!

09/19/2025

Policy review season is here! Fastest Labs helps HR teams update or create drug and alcohol testing policies that meet compliance.

Consult with us today: fastestlabs.com/mcallen

09/16/2025

Save time with on-site employee testing. Whether it’s pre-employment or random screening, we come to you.

Learn how Fastest Labs can support your team: fastestlabs.com/mcallen

09/12/2025

A clear, updated drug and alcohol policy is the foundation of a safer, more compliant workplace. Fall is the ideal time to review your existing policy.

Whether you're managing multiple worksites, working with remote employees, or simply haven't updated your policy in years, Fastest Labs can help. Our team will work with you to revise outdated language, incorporate required testing types (like for-cause or post-accident), and design a policy that reflects your current operations.

Get expert support and peace of mind. Book your consult today: fastestlabs.com/mcallen

09/09/2025

What’s your guess? 💅 Drug traces can stay in fingernails for much longer than in urine or saliva.

Comment below and test your knowledge!

09/04/2025

Notice changes in behavior? Our confidential for-cause testing gives you answers—fast.

Protect your team with confidence: fastestlabs.com/mcallen

09/01/2025

This Labor Day, we pause to recognize and celebrate the dedication, resilience, and hard work of individuals and teams across every industry. Thank you for building, serving, caring, and leading with strength and heart.

Drop a 🙌 in the comments to celebrate the workers in your life—your team, your family, your community.

08/29/2025

Keep your workplace compliant.

As we wrap summer, it’s a perfect time to review your drug & alcohol policies. Are you addressing for-cause testing? Post-accident protocols? DOT compliance?

Key considerations:
✅ Updated language around ma*****na
✅ Clear steps for reasonable suspicion
✅ Defined roles & responsibilities

Your policy isn’t just paperwork — it’s protection.

Need help? Fastest Labs helps create & review policies: fastestlabs.com/mcallen

08/27/2025

An accident on-site? Timing is critical. We provide immediate post-accident drug & alcohol testing to protect your business from liability and keep your team safe.

Prepare your business at fastestlabs.com/mcallen

08/25/2025

Not all tests meet legal standards. Our court-admissible DNA, drug, & alcohol tests follow strict chain-of-custody protocols to ensure results hold up in any legal situation.

Secure legally defensible results at fastestlabs.com/mcallen

08/22/2025

When incidents happen outside regular hours, Fastest Labs is there. Our after-hours and emergency drug & alcohol testing ensures you stay compliant and protect your team — no matter when issues arise.

Learn about after-hours support at fastestlabs.com/mcallen

08/20/2025

Avoid disrupting your team’s busy day. With Fastest Labs’ on-site testing, we bring certified, compliant drug & alcohol testing straight to your workplace — minimizing downtime, keeping productivity up, and employees happy.

Book on-site testing now at fastestlabs.com/mcallen

08/18/2025

Did you know lack of sleep can drive cravings and substance use? The body & brain need rest to fight dependency. What’s your best sleep tip?

Learn more here: fastestlabs.com/mcallen

Address

1205 E. Hackberry Avenue
McAllen, TX
78501

Opening Hours

Monday	9am - 12pm
	1pm - 5pm
Tuesday	9am - 12pm
	1pm - 5pm
Wednesday	9am - 12pm
	1pm - 5pm
Thursday	9am - 12pm
	1pm - 5pm
Friday	9am - 12pm
	1pm - 5pm

Telephone

+19566254279

Website

http://fastestlabs.com/mcallen

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