Sentinel Fire and Security

Since 1976, Sentinel Fire & Security has been installing and servicing security systems and fire alarm systems in Blaine County.  They have 24 hour local service personnel to deal with any problems you might. have.  If you know someone with an alarm system, it’s most likely from Sentinel Fire & Security.

Our People:

Tom Bowman, General Manager with Sentinel since January, 2013: 32 years in Blaine County
Tom has been working in the alarm industry on and off since 1978 when he and his brother started an alarm company in San Diego.   After moving to Sun Valley “for a winter” in 1981, Tom started his own alarm company here, Ketchum Alarm which he sold to Sentinel  in 1999.  Tom was elected as a Blaine County Commissioner in 2004 and served until July of 2012 when he resigned to take the General Manager position at Sentinel.  Tom and his wife Patti have lived mid-valley since 1987 and raised to kids who are now in college.

Mark Maguregui, Office Manager With Sentinel since 1994
Mark graduated from Boise State University with a degree in accounting in 1993 and been working at Sentinel since 1994. Mark manages all the aspects of the office and is an expert with our monitoring equipment and software.  Mark lives with his wife Paula in Hailey.

Bert Brammer, Bert does everything! With Sentinel and Ketchum Alarm since 1992
Bert was hired by Tom for Ketchum Alarm Company after he received his AA degree from Idaho State University.  Bert is an expert in designing alarm systems of all types, is called in for challenging service issues and can install any low voltage system.  Bert and his wife Kathy live in Blaine County with their son Blake.

Kevin Johnston, Service and Installation 16 years with Sentinel
Born and raised in Blaine County, Kevin has been working at Sentinel full time since 1997, and before that, helped out during summer vacations from school. He lives with his wife Melissa and has two kids.

Casey Kelly, Service and Installation with Sentinel since 2001
Casey is our “go-to” guy for difficult wiring problems and always enjoys a challenge.  Casey started with Sentinel soon after high school and has been a high performer ever since.  He lives with his wife Morgan and their young kids.

Jeannice Shiver, Service Technician with Sentinel since 1999
Jeannice transitioned to part time after her kids came along and shares service call responsibilities with Bert on weekends and holidays.  She’s active in her church and lives with her husband Jeff and kids in Hailey and remains a loyal Aggie.


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