Security Systems & Services in Smithtown, NY

Comprehensive list of Smithtown, New York based companies offering installation, maintenance and repair of home and business security systems, CCTV & burglar alarms, guard and video surveillance services.

Business Listings

A-Expert Security Systems. is a owner operated, complete service alarm firm. With ten years in the business, we strive for excellence in everything we do. As an incentive, Our firm issues discount certificates to your homeowner's insurance firm after the completion of a burglar/fire system.


IAL Total Security has been in business since 1968! And of course, we provide competitive prices, and customize your system to suit your budget. We support all brands of automatic gate operators, such as GTO, Door King Systems DKS, Chamberlain, FAAC, Liftmaster, MegaTower, Cincinnati, Amano, HY Security and more.


Interested in Home Automation, but don't know where to begin? WE NOW HAVE THE LOWEST SHIPPING RATES EVER! See our new ground rates now. And in the process, it gives you unmatched security, control, and peace of mind. Plus, add-on lever lock and deadbolt are compatible with any Z-Wave gateway! Vera is a simple solution for total home control, security and energy savings.



Suburban Security is a NYS Licensed, insured and bonded supplier of Security Officer Services, exclusively servicing Nassau and Suffolk counties. Each and every service point on Long Island is in continuous communication with our 24hr dispatcher station, as well as our field supervisors on patrol in our marked patrol vehicles.


Offers 20 years of professional service striving to supply the finest protection in both Fire Alarm & Burglar Alarm Security, as well as owning our own 24hr U.L. approved Central Station with state of the art equipment, monitoring both regional and national accounts. Our retail and wholesale outlet Alarm Depot offers one of the biggest selections of security equipment over the counter.


Gunning Business Machines was established in 1967 by Joseph Gunning selling and servicing office equipment and cash registers. It is a family run and operated firm. We have decades of combined knowledge in sales, service and support with Point of Sale POS systems for the restaurant, retail and grocery industries. The firm stayed on the cutting edge with technologies for retailers.


Universal Security Systems has over 1000 satisfied clients in the New York Metropolitan Area. Construction Services Universal Construction Services Group supplies the infrastructure installation for electronic security systems as well as physical security system installation. Typical projects include security fencing, vehicle barriers, guard booths as well as light and cameras poles.


Gold Shield Alarm Company is based on a reputation of excellence. In 1999, we combined over twenty years of law enforcement expertise and extensive knowledge in alarm systems to form a firm unique to the Alarm Industry. Although many firms offer alarm systems, none provide personalized service and crime prevention consulting.