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Welcome visitors! Make sure to check out our latest informational piece on how to secure your home to make sure you're home is safe as possible before calling a home security company. Nationwide Alarm CO 1835 Merrick Avenue Merrick, NY 11566 (516) 378-1688 (516) 546-0312   Lic. by nys department of state. Our specialties include burglar alarms, fire alarms, intercoms, security cameras and telephone systems. Our preferred brands include ademco, commercial, directv and the cyclone design logo are registered trademarks of directv, inc., and are used with permission. , dsc, fbi, napco and residential. We can assist you with hardware and programming available separately. , installation & servicing, insurance company credit & certificates , radio monitoring, residential & commercial, sales, telephone intercom systems and u.l. central station monitoring. We've served residential and commercial customers. We've been in business since 1971. Open for business 24 hours service.   Share Your Review If you have used the services of Nationwide Alarm CO we'd love to hear from you! Use the form below to review and comment on your experience.   Your Name: (First name + last initial) City, State: , My Rating: My Review: Do not enter html Please enter this code into the box below. Enter Code:   Please note: all reviews are screened for spam and take 24-48 hours to be approved.       You are here: Installation » » Nationwide Alarm CO

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