Drug Testing in Houston, TX

Need a drug test in Houston - for a job, a court, or a custody agreement? You have two ways to get it done. Rapid Same-Day screens are read at the collection site, usually within the hour, at 12 approved same-day centers in the area. Lab drug panels go to a certified laboratory for a full screen with confirmation testing, results usually in 1-2 business days. Order online, we send the order to the center, and you walk in and sign in. Check the center's drug-screening hours before you go - they often end earlier than general hours. Serving Houston since 2008. New job in the Port, the Ship Channel, or an office tower — and HR wants a drug screen by Friday. Houston handles this daily: order online, walk into a same-day test center, and rapid results are read at the collection site, usually within the hour. Lab panels for court or custody run a full laboratory process, usually 1–2 business days. Either way, the deadline gets met.

🔒 100% confidential ⚡ Same-day testing - no appointment needed 💵 All-in pricing - no fees at checkout, ever 📄 Results usually in 1-2 business days
Not sure which test you need? Talk to a Care Advisor - no pressure, just answers. Since 2008.
(866) 873-0879
Have your ZIP code ready - we'll find your nearest test center and the right test while you're on the phone.
Quest Diagnostics Northwest Nearest to you
1919 North Loop W, Suite 125, Houston, TX 77008
M-F 10:00 am-4:00 pm; TSPOT: M-F 6:30 am-5:00 pm
✓ Test at this center Directions
Map showing Quest Diagnostics Northwest
Test centers don't accept payment - you pay securely here; the center just does the draw.
Not your spot? See all 12+ test centers near you →
Over 4,500 testing centers nationwide · 48 states, including New York

Choose your drug test in Houston

Not sure which you need? Answer 3 questions - or call. No pressure, just answers.
Rapid Same-Day - read at the collection site, usually within the hour
6 Panel Rapid Same-Day Drug Test $89
✓ $89 is all-in
10 Panel Rapid Same-Day Drug Test $99
✓ $99 is all-in
Lab drug panels - specimen to a certified laboratory, results usually 1-2 business days
9 Panel Drug Test $99
✓ $99 is all-in
10 Panel Drug Test $99
✓ $99 is all-in
9 Panel Drug Test + Urine Alcohol $113
✓ $113 is all-in
Urine Alcohol Test (Ethanol) $59
✓ $59 is all-in
Need support? (866) 873-0879

Drug-screening centers near Houston

Drug-screening hours often end earlier than a center's general hours - check before you go, and go early.

Quest Diagnostics Northwest
1919 North Loop W, Suite 125, Houston, TX 77008
🕐 M-F 10:00 am-4:00 pm; TSPOT: M-F 6:30 am-5:00 pm
Directions →
Quest Diagnostics Kingsride
12385 Kingsride Avenue, Houston, TX 77024
🕐 M-F 10:00 am-4:00 pm; TSPOT: M-F 7:00 am-5:00 pm
Directions →
Quest Diagnostics Wednesbury
8200 Wednesbury Lane, Suite 450, Houston, TX 77074
🕐 M-F 10:00 am-2:00 pm; TSPOT: M-F 7:30 am-4:00 pm
Directions →
Quest Diagnostics West Houston Medical
12121 Richmond Ave, Suite 124, Houston, TX 77082
🕐 M-F 10:00 am-4:00 pm; TSPOT: M-F 7:00 am-4:30 pm
Directions →
Test centers don't accept payment - you pay securely here; the center just does the collection.

Getting tested in Houston

Same-day centers cluster along the employment corridors — check your ZIP for the nearest one and note the drug-screening hours, which often end earlier than general hours. Go before your window closes; afternoon collections can run out of clock.

What happens after you order

Order online - here's exactly what happens next, and what to bring.

1Order online

Your test pass arrives by email, with your collection site's address and its drug-screening hours.

2We send it ahead

We send everything to the collection site ahead of you - nothing to arrange when you arrive.

3Bring your pass & ID

Bring your test pass and a valid government photo ID - drug collection checks both. It takes about five minutes.

Questions people in Houston ask us

Every one of these gets asked on the phone daily. No judgment, just answers.

What do I bring to my drug test?
Two things: your test pass (on your phone is fine, printed works too) and a valid government photo ID - driver's license, state ID, or passport. Drug screens check both. Go within your pass's time window, and inside the center's drug-screening hours.
How fast do I get my result?
Rapid Same-Day tests are read at the collection site, usually within the hour. Lab panels post to your secure online account, usually in 1-2 business days. A non-negative screen is always confirmed by the laboratory before anything is reported - that's standard process, not a delay you caused.
My employer needs the result - how do they get it?
From you. The report posts to your private account; you download the PDF and share it with the employer yourself. You stay in the chain and see exactly what they see.
Rapid or lab - which one does my situation need?
Ask one question of whoever's requiring the test: do they need a lab-confirmed report, or just a result? Most non-regulated pre-employment accepts the rapid. Courts, custody, and probation almost always want the lab panel - and often a specific panel count, which each product page lists substance by substance.
What if I can't get there within my pass's window?
Call us at (866) 873-0879 and we'll issue a fresh one. Life happens - the test still gets done.
My Houston employer needs the result today — which test?
The Rapid Same-Day tests — they're read at the collection site, usually within the hour. Order online first, check the center's drug screening hours, and go early. Non-negative screens are always confirmed by the laboratory before anything is reported.
More testing in Houston
Drug testing near Houston