Nelson Alarm prides itself on being a full-service provider of quality burglar and fire alarm systems throughout Indiana. Got a business and a home? Our motto says it all "Only The Best!" Our team of technicians understands the importance of quality install and repairs. We keep an extensive inventory of parts in stock in our office and on our trucks.

Why? Because it ensures there are no delays in getting your system up and running in a timely manner whether it's for a new security system installation, or a security system repair.

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About Us Report

Since 1991, Nelson Alarm has become the go-to Indianapolis Security System Company for homes and businesses. Starting with the motto, "Only The Best, " we aim to give you a customized security system that's intuitive to operate and powerful enough to fully protect what you love. And since our team all live and serve in the local Indianapolis area, we're not only protecting our clients - we're also protecting our friends and neighbors.

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Nelson Alarm has been a trusted Indianapolis security company for almost 30 years and is ready to help you find the right business or home security solution for you and your family. One of our experienced sales consultants will contact you to discuss all of your security needs.

Home Security Report

At Nelson Alarm, the most important service we can offer is helping to protect your family and home. As a leading LOCAL home security company in Indianapolis, our home security systems have been a core strength for more than 30 years. Come work with us and our internal team of Indianapolis home security systems experts to help keep your family and home safe.

Home Alarm & Security Report

Every Indianapolis home is unique and deserves to have a home alarm package custom-designed just for you. While keeping your family safe from intrusion and fire may be priority number one, there are plenty of variables that can affect your final home security system.

Jeffrey Dalstrom

Dec 16, 2021

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Nelson alarm was fantastic! We needed 8 security cameras (4 indoor, 4 outdoor) at our business. The work they did was fast, affordable, and even better than we expected! Their crew was great to work with too. I highly recommend their services.

Kendra Hutchinson

Oct 26, 2021

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I love everything about Nelson alarms. Mark was out today, outstanding work and wonderful customer service.

Donna Watzke

Oct 03, 2021

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Excellent service from Mark. He called ahead of time, explained what he was doing, and made sure we knew how to operate our updated system.

Patricia Mendez

Jul 23, 2021

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This is a great company. I have used their services for almost 10 years. Their after-hours tech, Tristan, was extremely helpful walking me through an issue due to a low battery. And there was the courteous follow-up on Monday to make sure I was happy with the service,

Alex Ramion

May 29, 2021

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The company I work for has used Nelson Alarm for fire and burglary for over a decade now and they have always been an easy company to work with. Their response time to system issues or needing to put the system in test mode has always been top notch. Their technicians are always professional, courteous, and knowledgeable. They also have a range of options so you can decide on the quality of equipment that you want for the application, from best value to best quality.

Todd Nierman

Apr 12, 2021

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We've been customers for over 20 years. Just went through an upgrade. The salesman (Jim) and installation techs (Elliott and Steven) were professional, conscientious, timely and a pleasure to work with. Highly recommend Nelson.

Nicholas Bol

Mar 04, 2021

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Great experience with Nelson alarm. They were able to schedule and upgrade to our system with less than a weeks notice, and when they had a cancellation they offered an earlier slot to us. Spencer was the tech who came into upgrade our system and he was great. Very flexible with my schedule, efficient in getting it installed, and personable when showing me how to use the system. Would highly recommend Nelson Alarm to anyone who asks!

Scott Kennedy

Feb 25, 2021

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My wife and I just had the team from Nelson Alarm install a new security system with outside surveillance cameras at our home. They did a tremendous job with having to install this new technology in an older home. The guys were professional, courteous and friendly. They made the process very easy and made sure we understood how to use the technology. I would highly recommend Nelson Alarm in protecting your home.

Elizabeth Goble

Feb 12, 2021

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Nelson Alarm is a great company. We are out of there service area, but since we have another store that uses them, they agreed to helping us out! I would definitely recommend them. Their team is great, there product is good, and it was a lot less expensive than our other options.

Kris Wendholt

Jan 17, 2021

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Tech provided exceptional service and answered all questions I had. There were a few issues with set up but he stayed until all issues were resolved and made sure I fully understand the system before leaving. Would highly recommend!

Martin Reist

Nov 17, 2020

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Aaron at Nelson Alarm was incredibly kind, knowledgeable and professional. He helped out Alarm our service on technical questions we had and now have a much better understanding of how to use our system. A+ for Aaron!

Ricks Service Center

Oct 17, 2020

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GREAT SERVICE. GREAT MANAGEMENT. GREAT COMPANY! We had a few issues at the shop with vandalism and theft. Nelson Alarm took GREAT care of us and made it affordable to upgrade our security system to help us with the issues. The entire team was awesome through the whole experience. HIGHLY RECOMMENDED!

Raymond V.

Mar 08, 2019

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I have had my old alarm with Nelson Alarm for approximately 21 years. I started having some false alarms being sent in lately, and thought maybe, just maybe, after 21 years, it needed some service. And it did. Actually many of the parts had gone to rest and could not be purchased any longer. So, It was time for an upgrade. And what an upgrade it turned out to be.

I want to thank Tasha, who pays attention to the customer and the needs and is very informative as to how this was happening at the same time (about) every day. My sales person, Bob Lewis, who understood what I needed, and did not even try to oversell me. and especially our technicians, Rex, and Gus, and Finally their installer Josh. Josh made sure that all devices were operating nicely and I could get any info on the APP that is now letting me talk to the alarm.

His training was easily understood and very complete. Would I mention them to anyone? O yes, they are the best. If you go to them based on this review please let them know that Ray V sent you. You will see what I mean. They are priced well, and act quickly if there is a problem! Thanks for listening! Hopefully we'll have a sunny day soon.