How do i contact guardian protection? *By clicking the button below to submit the form, I am authorizing Guardian Protection or its agents to contact me about its offers and services by text messages, telephone calls (including via automated telephone dialing systems and prerecorded messages) and e-mail at the telephone number (s) and e-mail address (es) provided above.Who isguardian protection services? Guardian Protection Services is the nation’s largest privately held security company. Guardian sells, installs, and monitors home and business security systems. Monitoring of lives and property is our business.Is guardian protection a good company to use? Guardian Protection reviews mention Guardian’s helpful customer service, quick response times and easy-to-use equipment. How do you cancel Guardian Protection services? Contact Guardian Protection directly if you wish to cancel a Guardian Protection service contract, but be aware the company charges an early termination fee on most plans.What is the guardian customer service department? Guardian’s Customer Service Department is your first contact for general questions about your security system, billing, or insurance certificates, and updating your emergency contact list. To schedule service, programming and repair work, please contact the Guardian Service Department.