Alarm One is a security systems company in Denver, Colorado.

Business Type

Commercial and Residential Burglar Alarms, Fire Alarms

Service Area

Denver, Aurora, Arvada, Englewood, Centennial, Highlands Ranch, Littleton, Lone Tree Parker, Castle Rock, Lakewood, CO

What We Do

Welcome to Alarm One!

Alarm One is a security systems company providing outstanding, affordable products to Denver, CO. As a full-service company, we provide high quality alarm systems and expert installation. In addition, we offer 24-hour monitoring.

Alarm One is well-known in Denver where we've outfitted many homes and businesses with reliable security for over 35 years. Many depend on us for alarms that work effectively. Our reputation depends on it, so you can count on consistent quality.

Alarm One offers many security products. Here are a few:

* Burglar Alarms
* Fire Alarms
* Intercom Entry Systems
* Surveillance Systems
* CCTV - Closed Circuit TV

As established security equipment experts, we offer attentive sales professionals and highly trained technicians to ensure you get the most effective security system for your needs. Don't settle for less. For peace of mind, come to Alarm One.

Call today!

• Control Systems
• Doors Security
• Fence Security
• Glass Break Sensors
• Keyless Entry Systems
• Panic Alert Systems
• Telephone Systems
• Time Lapse Systems
• Video Recorders

• Commercial Security Systems
• Design And Installation
• Monitored Security
• Residential Security Systems

Languages Spoken

• English

• Burglar And Fire Alarm Contractor