Peace of Mind

Greensite, we prevent, maintain and secure, homes and businesses. Our systems feature a UL Listed, CSAA Five Diamond Certified and FDNY Approved security system monitoring center.

Professional Surveillance Installation

Get the right cameras in the right places with remote access from your smartphone. We can help you put together a surveillance system that exactly fits your needs.

Home Maintenance Services

Keep your gutters clean and water draining properly away from your home with a call to our professionals. Proper duct and gutter cleaning is essential.

Home Security

The professionals at Greensite provide residential and commercial security system installation and maintenance. Honeywell Certified Installer.

Home Surveillance

For both homeowners and business owners, Greensite Surveillance Installations provide reliable and quality, reliability and economy.

Home Automation

Z-Wave home automation installation is here, and Greensite offers both turnkey and custom solutions. Lights, locks, thermostats and more.

Home Maintenance

Get dryer duct cleaning and roof gutter cleaning and maintenance. Proper cleaning and maintenance are essential to preventing damage.

Why Choose Greensite for Your Home or Business?

Central Home Monitoring

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.

Licensed and Insured

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.

Industry Standards and Brands

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.

Well Reviewed, 15 Years Experience

Greensite is well reviewed, and we are proud to have over 15 years experience. Our home security, home automation, home surveillance and home services clients love us and you will too.

Home Security Automation Services

Watch our On The Job With Greensite Video

Greensite Client Testimonials

What a Great Company. They did work on my restaurant installing cameras, Very professional, great service.

Stoney Brook Grille

If we could give more stars we would! The cameras we had installed by greensite have been a lifesaver especially when I’m away from home. Was to able make sure the kids didn’t party while we were away and that my house would be just as we left it when we came back. Thanks for giving me peace of mind greensite! You’re the best!!

Christine S.

Last spring we were interested in getting a camera system installed. We decided to go with Green Site Group and were very satisfied. Two days ago our cameras came in handy, our UPS guy broke our Christmas light show that was on our lawn (which we only had for 3 weeks). The first thing UPS said was if we had video of it, right away my husband said YES I DO. They were speechless. They put in a claim to the insurance company, the next day the insurance company called and said that we didn’t need to send them a copy of the video because they spoke to the driver and he confessed. They’re reimbursing us the full amount of the item. If we didn’t have our camera system I doubt the outcome of this situation would of been a happy one. Thank you Green Site Group for our AWESOME camera system!!! I HIGHLY recommend a camera system and THIS company. Thanks Mike!!!!!

Nicole F.

They are an exceptional company. Great service and they know their stuff.If you need an alarm and survilence system this is the company to call.

Eric C.

GreenSite security has been monitoring our home for years. They have always provided exceptional service with the most courteous and professional technicians. We recently installed a pool and felt that we needed cameras for extra security and piece of mind. GreenSite came to our home and not only did they install A top of the line security system at an affordable cost but their professionalism is beyond compare! Im extremely satisfied!

Judy H.

Mike and his team very recently did an install at my office at Overview Computer Services in Uniondale NY. The system works better than I could have ever expected and solves security issues that have plagued me for years. I’ve worked with Mike for a few years now and I can attest for his professionalism and attention to detail. They are a rarity in the security business, which is full of fly-by-night companies of ill repute. His team is solid and in his last 13+ years in the business has made solid choices in his employees and business associates. I would recommend GreenSite to any of my friends and family.

Overview Computer Services

Recent Greensite News

Greensite Central Monitored Alarm Systems Offer the Best Security

Greensite central monitored alarm systems that are connected to a Greensite central security control station provides your home and family with the best security available. Our trained specialists will respond immediately to any forced entry into your home or a...

Home Security Automation Services

Greensite proudly provides New York, Long Island, and New Jersey with low-voltage home security, surveillance, automation and maintenance services.

Get Greensite Security and Home Services

Choose Greensite for all your commercial and residential security, surveillance and automation needs. Greensite home services include dryer duct and gutter cleaning to keep your home and property safe.