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Alarm Detection Systems is one of the largest independently-owned,full-service UL-listed monitored security companies in Colorado. Our local presence means that we understand your needs and will design systems that meet local ordinances. Privately owned and operated since 1968, Alarm Detection Systems understands that nothing is more important than the safety of your family and the protection of your business.
Many customers praised the professionalism, responsiveness, and helpfulness of the staff and technicians.
Service Quality
Overall, customers reported satisfaction with the quality of service provided, including prompt and effective problem resolution.
Contract Issues
Several reviews highlighted frustrations with contract terms, particularly regarding automatic renewals and cancellation policies.
Pricing Concerns
Customers expressed dissatisfaction with high service fees and unexpected charges for technician visits.
Safety and Reliability
Customers felt secure with the monitoring services and appreciated the quick response to alarms and issues.
NP
nicole Pablo
Aug 21, 2025
5.0
Darren was very pleasant and got the job done! Will be sure to ask for him again!
LL
Lelanda Lee
Jul 15, 2025
5.0
Your service tech Daniel came to our home to troubleshoot our system that had a failed communications issue. He was polite and respectful, and he competently restored our system’s second communication connection. He also helped change the batteries in some of our system’s detection devices like glass breaks and the like. We were pleased with the results of his efforts.
AB
Abigail Burns
Sep 13, 2024
5.0
Jessie and Sandra have been wonderful to work with! They are super responsive and very helpful in issuing work orders to a community I manage. If I could give more than 5 stars I would! Great job ladies! Your customer service is amazing!
TR
Tom Robichaud
Oct 17, 2021
1.0
I have been a customer for 15 years. Safe systems bills 3 months in advance. I turned off my phone line in July but was paid up until October. I have asked for a refund for the months they provided no service and no they are sending me a past due notice for the next 3 months that they still can not provide service. I have had several phone calls, emails and snail mail interactions expressing they can not provide service. stop trying to intimidate me.
SH
Sharon Hay
Mar 15, 2019
5.0
My experience with Mike was very enjoyable and he was very clean and he helped me to understand what to do with the system. He works very nicely.
Frequently Asked Questions About Alarm Detection Systems, Inc. Colorado
What types of security products does Alarm Detection Systems, Inc. Colorado offer?
They offer burglary & intrusion systems, security cameras, fire alarms, card access, alarm monitoring, and home security solutions.
What fire protection services are available at Alarm Detection Systems, Inc. Colorado?
They provide fire alarm installation, testing, repair, sprinkler system testing, and fire extinguisher testing services.
How can I contact Alarm Detection Systems, Inc. Colorado for security services?
You can contact them at their main phone number +1 303-444-1191 or their alternate number +1 719-475-2647.
Are Alarm Detection Systems, Inc. Colorado's services available every day?
Yes, they are open 24 hours a day, seven days a week.
Where is Alarm Detection Systems, Inc. Colorado located?
They are located at 421 S Pierce Ave, Louisville, CO 80027, USA.
What certifications and associations does Alarm Detection Systems, Inc. Colorado hold?
They are associated with UL, The Monitoring Association, Electronic Security Association, National Fire Protection Association, NetOne, and PSA Security Network.
What brands are used by Alarm Detection Systems, Inc. Colorado for their security systems?
They use brands such as Honeywell, DMP, Apex, and Samsung.
Can I get a free security evaluation from Alarm Detection Systems, Inc. Colorado?
Yes, they offer free security evaluations; you can contact them through their featured message link.
What nearby places can I visit around Alarm Detection Systems, Inc. Colorado?
Nearby you can visit Safe Systems, Inc. for home automation and education services, Third Street which has coffee shops and grocery stores, and Louisville Glass, Inc. which offers window and auto glass services.
How can nearby places like Safe Systems, Inc. complement my visit to Alarm Detection Systems, Inc. Colorado?
Safe Systems, Inc. provides home automation and security systems education which can complement Alarm Detection Systems' security products and services, making it convenient to explore both offerings in the area.
Are there any coffee shops near Alarm Detection Systems, Inc. Colorado where I can relax before or after my appointment?
Yes, nearby coffee shops include Third Street, B.W. Cooper’s Iced Brew Tea, and Ainducex.