About Sentinel Security

Sentinel Security & Investigations has been keeping watch over Washington, PA for 48 years.

On March 24, 1976, John Petronka founded the company as Sentinel Security & Investigation Services at 60 Franklin Farms Road, where it stands to this day. Ever since, Sentinel has been committed to providing reliable, expert security guard service, private investigations, process service, and more for individuals, organizations, events, and local businesses near you.

About the Owner
Second-generation Owner and Private Investigator Chris Petronka is a lifelong resident of Washington County, PA. He has been a licensed PI for over 25 years, has accumulated 37 total years of experience in security and investigations, and has made contacts at the local, state, and federal levels of law enforcement. Chris holds an degree in economics from Allegheny College and an MBA from Kent State University.

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Member of

Logo for and link to the Pennsylvania Association of Licensed Investigators.Pennsylvania Association of Licensed Investigators

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Logo for and link to the Washington County Manufacturer's Association.Washington County Manufacturers Association

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You can contact Sentinel for a free consultation at (724)225-7957.