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At Post Alarm Systems, we've partnered with the very best security solutions providers in the industry to bring together the finest, most technologically advanced systems to keep your home and business safe and secure. If you have questions about getting started with an alarm system, or are a client who needs assistance, please complete the form below, or call us toll free: 800-654-7678. We look forward to hearing from you!

If you are requesting a call back after our normal business hours 8-5 Monday through Friday, please call our 24 hour monitoring station at 800-654-7678 and they will put you in contact with a sales representative quickly.

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Los Angeles Offices
47 East Saint Joseph Street
Arcadia, CA 91006
get directions

Toll Free: 800-654-7678
Local: 626-446-7159
Fax: 626.446.5811


Orange County Branch
3303 Harbor Boulevard, Suite D-6
Costa Mesa, CA 92626
Phone: 949.261.9734