"go local" be treated like a neighbor not just a customer

N & D  Security

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Your local company

Our main area of focus is Residential security systems.  We use all Honeywell equipment, the #1 manufacturer in the US for alarm equipment.  Our systems are monitored 24/7/365 and you can control your system remotely using your smartphone/tablet/pc. If you currently have an ADT system (they also use Honeywell equipment), switching over to N&D can be quick and easy. Click below to learn more about our services.


Get an estimate

Thanks to Zillow and Redfin we can do a virtual walk-through with an address and have a proposal back in minutes via email. We are also happy to set a time for an in person walk-through. Both are free of cost.



After searching online I found N&D Security had great reviews, so I contacted them via their website. Perry responded almost instantly, on a weekend! We exchanged a few emails and they came out just 3 days later. I didn’t even need a walk-through which I was worried about because of my work schedule. Could not be happier with the process, I will use them as long as I am in the DC area.
— Jason S., Washington DC
We had some security concerns and I called around to several places. Everyone at N & D was immediately responsible and informative. I was given an accurate estimate within hours and was able to request some additional security measures. I was tempted to go with a bigger company, but the personal service you get with a knowledgeable, local company can’t be beat. I recommend N & D without hesitation.
— Lee. A, Arlington, VA
I was looking into options outside of big national providers and came across N&D and I’m glad that I did! N&D is hungry to win new business and Perry and his team have been exceptional each step of the way from discussing service offerings to the installation and addressing all follow up questions that I had. We’re paying a fair price for the coverage I wanted (with no contract) and working with a small (and local) company makes things much easier.
— Brian B., Washington, DC
We highly recommend N&D Security. A family run business that is professional, knowledgeable, affordable, and excels at customer service. Unlike larger security companies, you can actually reach a person when you need help, or a question answered - calls are answered and emails are returned. Installation was simple and on time; the price is fair and more than beats the competition. You will never feel like you have been oversold or manipulated. The star of the company is customer service - these folks care about the job they do, and make it their business to be sure you are happy, safe, and satisfied with the system. Highly recommend.
— Jill J, Washington, DC



Our main objective is to be honest and real with everyone we speak with.  With so many large companies existing today you can't get a straight answer about anything and when you have a problem there is no remorse from the mega companies - you deal with someone who isn't invested in the company who honestly doesn't care.  We treat people as we would like to be treated, we guarantee great work and a constant line of communication to fix any problems that may arise as quickly as we possibly can.  We want to keep you satisfied so being with N&D is a plus not a hassle.  


SEE our HANDIWORK and what we use


company bio

We have been an Arlington, VA based company since 1978 and are family owned and operated.  Everyone in the company has 15 years or more in the security field, we know it in and out.  The N&D family is passionate about protecting our homes and loved ones, we extend that to everyone we come into contact with.  Our interest in technology and electronics is the fabric that holds the company together, we really do love what we do.  We are most known for residential and commercial security systems with 24/7/365 monitoring.  After the installation of a system, we continue to service your system free of charge.  Mega companies with their poor customer service are so frustrating, and we strive to create the opposite experience at N&D.