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Our customer service team is ready to assist you with information on testing services or answers to questions.

National Labs, Inc.

3948 Trust Way

Hayward, CA 94545


Call us at 1 (800) 800 6060, Mon - Fri 8 AM - 5 PM PST (excluding holidays), or email us at  

New! You can now chat with us. Click the chat window below (homepage on mobile).

For information about payment options and policies, please go to 

National Labs makes every effort to address inquiries quickly. Thank you for stopping by. We look forward to talking with you soon. 

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