For more than 20 years, property owners throughout Southeast Wisconsin and around the state have trusted Cornerstone Security Group, LLC to install high-quality security systems at an affordable price. We'd like to do the same for you.

As a locally owned, family operated company, we take great pride in our team of fast, friendly, specially trained security technicians and sales consultants who can often provide same-day service. As a Cornerstone Security Group, LLC customer you can expect:

• Experience, support and the most advanced technology available
• Customized security solutions 
• The ability to detect the intruder before entry 
• Ownership of all equipment 
• 2-year parts and labor warranty

Our Services

Residential & Commercial Security:

• Security Systems
• Intrusion Detection 
• Video Surveillance 
• Access Control   
• Lone-worker Protection 
• And more