Please contact us with any questions you may have about our company or product lines.

Our staff are available to answer inquiries during our regular business hours of 9:00 am to 5:00 pm Pacific Time, Monday through Friday. Our office is closed for the following U.S. holidays each year:

• New Year's Day
• Memorial Day
• Independence Day
• Labor Day
• Thanksgiving Day
• Christmas Day

Mailing address:

Au Cornerstone
P.O. Box 1127
Mount Vernon, WA 98273

Phone: 800-654-6577
Phone: (360) 336-5234
Fax: (360) 336-3522

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