We've been where you are. We know you need a security contractor who you can trust.

Alarmco, LLC is owned and operated in St. Robert, Missouri.  We specialize in sales, installations and service repair of almost any security system.   

Our monitoring center is local and your call is always answered by a live person 24/7.   

Why Choose Us?

About Us

Total Peace of Mind

When you know you're safe and secure, you can rest easily.



What we do?

Home & Business Security Center


Protecting your home or business is a basic human instinct - you've worked hard for what you have. Why would you jeopardize that? At Alarmco, LLC, we're dedicated to providing you true security and peace of mind. When you know you're safe and secure, you can rest easily.


With 25 years in the security business, you can trust us to protect your home, family, and business. We set ourselves apart with unwavering integrity and a strict code of ethics.

Total Security

Integrate your security solution with the latest technologies.

Total Protection

Your assets are important - make sure they're protected.

  • CCTV installation, maintenance, and retrieval
  • Commercial & Residential Fire Alarm Systems
  • Commercial & Residential Burglar Alarm Systems
  • Service & Maintain your system. 
  • Medical Alert Systems
  • Access Control Systems