Why Monitoring Matters: The Difference Between Alerts and True Protection
When it comes to home security, many homeowners assume that simply receiving alerts on their phone is enough. While notifications are useful, they don’t guarantee
Skip the hassle of DIY—get professional installation, 24/7 monitoring, and trusted security backed by expert support.
UL Listed, CSAA Five Diamond Certified and FDNY Approved monitoring center is built, staffed and maintained to meet or exceed the stringent standards of security, reliability and customer service.
Be confident in our technicians. We are NYS and NJ licensed and insured to install low-voltage security, surveillance and home installation systems in addition to performing home maintenance services.
Our home security and home automation systems use WiFi and Z-Wave industry standards. We are an official Honeywell security and home automation system installer.





See what real customers have to say about their experience with greensite security services.
Posted on Google Steven BaumTrustindex verifies that the original source of the review is Google. Greensite did a great job setting up our home security system. They were very professional and caring. I recommend them highly.Posted on Google Andrew MallorTrustindex verifies that the original source of the review is Google. Mike and his team are the best. Everyone from the technicians to the service team. Attention to detail and great follow up. They've outfitted my home, office and building. Highly recommend.Posted on Google GloriaTrustindex verifies that the original source of the review is Google. Green Brite was a PLEASURE to deal with! Everyone is very professional, polite, respectful and friendly! They get back to you quickly and are patient to answer any questions or issues. They have a great support system. Workers work efficiently and focus on their task. I highly recommend Green Brite!!Posted on Google William CashelTrustindex verifies that the original source of the review is Google. I had become unhappy with my previous alarm company. Their response time for service was long and yearly monitoring increases were becoming unacceptable. A relative suggested “Greensite” (then BET-R-View). I called on a Friday and they took my information over the phone and said I would get a callback ASAP. I did the same day and their Marketing Manager came to my home that Sunday reprogrammed my panel and made a minor repair. I am considering upgrading my panel to Honeywell and adding cameras. I have also made arrangements to have my dryer exhaust and gutters cleaned. I have been with these folks for about seven years and couldn’t be happier.Posted on Google Fran LohrTrustindex verifies that the original source of the review is Google. The young was timely. He was promptly here at 9 am, did what he had to do and was gone within 15 minutes. Very polite young man. Sorry I didn’t catch his name.Posted on Google richard cooperbergTrustindex verifies that the original source of the review is Google. daniel and jefry did a great job on site installing the alarm rosanna in the office was very helpful, and of course Danny walked me through the whole process and was always available to answer questionsPosted on Google Evan EpsteinTrustindex verifies that the original source of the review is Google. I’ve been a Greensite customer for a couple of years now, and I can’t say enough good things about the team — especially Travis. He is always incredibly helpful when I have questions or need assistance with my home alarm system. Travis is patient, knowledgeable, and never makes me feel like any question is too small or too complicated. He even gave me his personal cell phone number so I can call or text him directly if an issue comes up. He’s walked me through troubleshooting step-by-step more than once, which has been a huge help. The whole Greensite team has been fantastic to work with. Jess and Daniel have also gone above and beyond over the past two years, providing the same level of care and attention to detail as Travis. It’s clear that customer service is a top priority for Greensite, and it gives me real peace of mind knowing my home is being monitored and supported by such a reliable and responsive team. Highly recommend Greensite if you’re looking for a top-notch home security provider!Posted on Google stephen finneganTrustindex verifies that the original source of the review is Google. We use Greensite for all of our facilities for burglar and fire protection plus some enhancements. They are the best team in the business, Very easy to work with, contact is professional and effective on all levels. We highly recommend Greensite!Posted on Google Ariel WharryTrustindex verifies that the original source of the review is Google. Couldn't be happier with our camera system! Mike and Nick are amazing to work with, professional, and super reliable. The camera system installed for my business is efficient and easy to use, all thanks to Nick and Mike.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Get updates on home security trends, expert tips, and the latest advancements in surveillance and automation.
When it comes to home security, many homeowners assume that simply receiving alerts on their phone is enough. While notifications are useful, they don’t guarantee
Life on Long Island is busy, and homeowners are always looking for ways to simplify daily routines while keeping their families safe. Smart home automation
Home security is no longer just about locks and alarms. In 2025, Long Island homeowners are looking for smarter, faster, and more reliable ways to