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Specializing in the installation of home & commercial security systems, surveillance systems, fire alarms, and much more. Give us a call at (610) 494-9100. Delco Alarm Systems is a second generation family-owned and operated security installation and monitoring company based in Aston, Pennsylvania. We have a reputation for high-quality security system installations and friendly reliable service for over four decades.

We stand by our promise to provide personalized, timely service to our customers. From commercial buildings to residential homes and apartments, schools, and industrial buildings, our team of specialists offers personalized solutions utilizing state of the art technology.
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There are two types of tests to perform: testing signals within your home and testing the signal from your home to the monitoring center. The procedures vary slightly depending on the manufacturer of the system. If you have one, refer to the owners' manual to test according to your system type. If not, the following test procedures should apply to most alarm systems.
Delco Alarm is a security company in Aston, PA who brings decades of professional security experience to your home when you call. We take pride in the services we've provided in the Delaware Country community for over 40 years. Your business is important to us and our knowledgeable staff will make a clear impression of the high level of service you can expect.
Delco Alarm provides security system experience, and expertise for commercial entities of all sizes. Call us for a free security assessment. We'll design a solution that best fits your security requirements. Access control is of prime importance when businesses need to secure important or confidential information and equipment.
Delco Alarm provides security system experience, and expertise for commercial entities of all sizes. Call us for a free security assessment. We'll design a solution that best fits your security requirements. Delco Alarm Systems is highly equipped to design a fire system for your commercial building that will meet local, state and national fire codes.
Reviews (10)
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Lyndsay Spaziani
Apr 10, 2020
My alarm system has worked great the past few years and all the technicians have been professional and friendly! The office staff, however, is very confused and probably needs further training. It is really hard to schedule an appointment. After about 8 back and forth phone calls I was told to stay home until I got a call 30 minutes before the technician came.

They also kept calling the wrong phone number to contact me and gave the technician the wrong number. I stayed home all day and the technician finally came at 5pm. A window of time would've been appreciated, most days I don't have a full day to stay in and wait. I do appreciate the work and demeanor of the technician.
Carl Unger
Jun 29, 2019
I recently got an alarm installed after my home was broken into. Delco Alarm responded in no time and was over instantly to set it up for me. Justin, the sales associate/technician, was knowledgeable and professional. He set everything up and explained their monitoring system and phone app. Would highly recommend. A +
Irena K.
Apr 23, 2019
Update : First year almoust finished, can't wait for second to be over to switch to a different company If you are looking for extra stress in your life - this is the right security company for you. On top of all, you do not protect customers privacy!
Mike Gaffney
Mar 05, 2018
I have been using Delco Alarm for over 20 years both at work and for my personal properties. Always get prompt service. The crews are good at what they do. Clean and courteous to our staff at work and have no problem leaving them in my home when we aren't there. If you are looking for a good local alarm contractor I would highly recommend this company.
Cathy DiLuigi
Feb 22, 2018
This company is the one you want to handle your security issues. RAM-T had Delco Alarm Systems install a surveillance system. They are extremely professional and very knowledgeable in their field. Price was good and service excellent. I would highly recommend them for your security needs.
Rosemary Moran
Dec 23, 2017
Working with Justin was easy and he was extremely responsive to my numerous questions. He is very prompt at responding to phone calls, emails, etc. The installation was easy and the installer was very concerned to make sure the areas I wanted the cameras to focus on were to my satisfaction. I would definitely recommend Delco Alarm to anyone. Thanks again Justin.
Travis Norris
Dec 19, 2017
I have been with Delco Alarms for 20 years. I have used them for home and business as well as some of my business clients. This is a company that offers professional service, support and installations. Very knowledgeable, friendly and professional. I highly recommend using Delco Alarms for your alarm, fire, video camera and other physical security needs. Top notch!
Edward Deisher
Dec 18, 2017
Delco Alarm has been my security company of choice for the last 20+ years. They have monitored 3 of my homes so far. The owners and employees are very knowledgeable and professional. They are always on the cutting edge of the technology. I moved into a new home last year and Delco installed a state of the art system for me. I can control everything from an app on my phone. So easy to use. I would highly recommend them!
Rick Megaro
Jan 22, 2017
I have been a customer of Delco Alarm Systems in Aston, PA for over 20 years. They have always given me excellent customer service and have been very attentive to my needs. Anytime I needed service or had a question, they responded professionally, promptly and fairly. I recommend this company highly! You will not be disappointed!
Chad Weldon
Jan 21, 2017
Have had an absolute frustrating time with this contractor for my small business. From the estimating to install to service. Very long story to short, the work project consisted of installing a new fire alarm and security system in a 6,000 sq foot building. Estimating/Installation was done incorrectly and things were not checked over fully and problems starting coming up.

Service crews came back out over and over and either didn't accept faults or couldn't find the issues. Each time they tried to send me bills that I declined and had to include their president on emails saying I paid thousands of dollars to have a working system and now almost 8 months later still has issues. As a small business owner I understand we are not perfect but man own up to what your a pro at and work your job like I'm going to feed you many new referrals.unfortunately I will now defer people from using Delco.

I hate doing this but this was a rough go at it for me with these guys. **Joe(manager on their team) is the reason I gave them 2 instead of 1 stars. He at least has tried to help.