Sentry Security

Sentry Security


Our Score


User Score

Sentry Security has been providing full-service residential and commercial security systems to the greater Chicago area since 1985. They are a local, independent company dedicated to customer satisfaction and providing high-quality products. There are contracts associated with Sentry Security's services but the details are not disclosed.


Sentry Security prides itself on great customer service. Sentry is the only Chicago-area company to meet the performance criteria for Best Picks, an independent list of top-quality home service providers for several major metropolitan areas, and they were ranked number 83 on the SDM Magazine's rankings of largest US Security Companies for 2011.


One potential downside to their basic package is that it only provides a one-year parts and labor warranty. Customers may be without coverage on their system for several years unless they pay a monthly service fee to extend the warranty. Typically, if a company demands that customers pay for the system in full they will provide some flexibility on the contract length; however, Sentry does not provide this option.

Our Recommendation

Sentry Security is a fantastic option for those living in the greater Chicago area. They have several decades of experience and thousands of customers to attest to their high-quality services. If you live in the area and are in the market for a home security system Sentry Security would be an excellent choice. View more companies

About Sentry Security

Sentry Security offers a basic security package that is comparable to most companies in the industry. Using Honeywell, GE, or DMP equipment, Sentry offers either a landline or wireless system that includes a control panel, key fob, three door sensors, and a motion sensor. The upfront costs are undisclosed.

Ratings Breakdown
Monthly Monitoring Fee Undisclosed
Install & Equipment Fee $599
Contract Length Undisclosed
Cancellation Policy Undisclosed
System Relocation Fee Undisclosed
Number of Reviews 2
Review Last Updated: January 24, 2020

Real Customer Reviews

The home security reviews on our site are left by both customers organically looking to share their opinions and customers whose opinions have been solicited.

In order to ensure the legitimacy of reviews on, all reviews are moderated by real people. We check each review for fraud and violation of our review guidelines. Customer reviews are unbiasedly checked and used to rank the home security companies on our site. You can read the breakdown of how we rank companies here.

2 Sentry Security Reviews

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Feb 12, 2019

Tom M is a great employee who treats his customers with care and a true desire to make sure their alarm is working properly to provide peace of mind. His expertise and knowledge ,along with making sure his customers are taken care of, is one of the main reasons we will stay with Sentry. Thank you Tom for great service today.



Jim Sofranko Chicago, IL

Mar 7, 2018

They do not seem to be monitoring our service.The alarm has gone off multiple times and we did not receive a call. We tried to cancel the service, but are tied into a three year contract...will run away from Sentry as soon as the contract is done. Do not do business with this company.