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We understand that one of your primary concerns is the safety and security of your family, home and/or business. At Sentinel Security, security is our only business! With over 29 years experience, we have provided security solutions to clients throughout Northeast Wisconsin (Green Bay, Appleton, Oshkosh, Manitowoc, Black Creek and surrounding areas).

Our quick response to service calls sets us apart from other security companies. There is no job too big or too small. We will work with you to design a security system that offers the best protection, that is easy to use, and provides the level of comfort you are looking for.
Services
Sentinel Security provides security solutions for homes throughout Northeast Wisconsin - Appleton, Green Bay, Oshkosh, Manitowoc, Black Creek. Our home security products and services will help keep you and your family safe from break-ins, fire, carbon monoxide, water backups and temperature changes.
Sentinel Security provides security solutions for businesses throughout Northeast Wisconsin - Appleton, Fox Cities, Neenah, Menasha, Oshkosh, Black Creek, Manitowoc, Greenville, and Kaukauna. Whether you need to secure a retail store, financial institution, manufacturing plant or medical facility, Sentinel Security can help.
After several years of having Sentinel Security on my premise my assessment of their services is that it is a very reputable company which offers top notch security devices. Once these devices are installed in the business or residence, Sentinel Security will not only guarantee security but also privacy.
Reviews (2)
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Mark Weinfurter
Jul 24, 2021
We've used them for our business - N.E.W. Printing for many years. I highly recommend them.
Elizabeth Jeffers
Jan 12, 2019
Sentinel Security is amazing. I would recommend anyone using this company for their security needs. I recently had a computer malfunction, which wiped out my office's access control database. *cue panic* I called Randy at Sentinel and he rearranged his schedule so that he could come check it out right away the next morning. He took time to explain things to me and worked with me so that I learned the system as well.

We ended up getting my problem fixed in less than one day. I am incredibly grateful to him for coming here so promptly and helping me resolve this issue! I suggest anyone who needs help with any sort of security/access control to go to Sentinel Security!