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Verified Reviews for Home Security System Service pros in Greenwich, NJ
*The Angi rating for Home Security System Service companies in Greenwich, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.
*The HomeAdvisor rating for Home Security System Service companies in Greenwich, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.
Last update on October 24, 2025
Find Home security system pros in Greenwich

ADT
ADT
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025

SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S on October 2025
For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S on October 2025

Guardian Protection Services, INC
Guardian Protection Services, INC
Trusted smart home security and small business security, Guardian Protection is the nation's largest privately-held security company helping to protect more than a quarter-million customers. Guardian Protection is a company dedicated to life safety and monitoring of property. We provide an extensive array of security and monitoring services to more than a quarter-million residential and commercial customers. Guardian is the nation's largest privately-held security company, but we weren't always that way. We do business today with the same integrity, attention to detail and commitment to customer service that was present when the company was founded back in 1950. We're a security company you can depend on. Call today for a FREE quote or in home security assessment.
"N/A"
Melvin R on January 2017
Trusted smart home security and small business security, Guardian Protection is the nation's largest privately-held security company helping to protect more than a quarter-million customers. Guardian Protection is a company dedicated to life safety and monitoring of property. We provide an extensive array of security and monitoring services to more than a quarter-million residential and commercial customers. Guardian is the nation's largest privately-held security company, but we weren't always that way. We do business today with the same integrity, attention to detail and commitment to customer service that was present when the company was founded back in 1950. We're a security company you can depend on. Call today for a FREE quote or in home security assessment.
"N/A"
Melvin R on January 2017

Advanced Air & Land Security Solutions LLC
Advanced Air & Land Security Solutions LLC
Welcome to Advanced Air and Land Security Solutions, where we pioneer cutting-edge security solutions for residential and commercial needs. With over a decade of experience in the industry and led by a military veteran, our commitment to safeguarding your peace of mind is unmatched. At Advanced Air and Land Security Solutions, we specialize in state-of-the-art AI cameras, alarms, and monitoring systems tailored to meet the evolving security demands of various industries. Our value proposition lies in our unwavering dedication to providing comprehensive security solutions that seamlessly integrate advanced technology with expert human oversight. Backed by a team of professionals ranging from receptionists to marketing experts, developers, assessors, and skilled installers, we ensure a holistic approach to security implementation. Whether you're safeguarding your home or protecting your commercial assets, trust Advanced Air and Land Security Solutions to deliver unparalleled security solutions that exceed expectations. Experience the difference with Advanced Air and Land Security Solutions , where safety meets innovation.
Welcome to Advanced Air and Land Security Solutions, where we pioneer cutting-edge security solutions for residential and commercial needs. With over a decade of experience in the industry and led by a military veteran, our commitment to safeguarding your peace of mind is unmatched. At Advanced Air and Land Security Solutions, we specialize in state-of-the-art AI cameras, alarms, and monitoring systems tailored to meet the evolving security demands of various industries. Our value proposition lies in our unwavering dedication to providing comprehensive security solutions that seamlessly integrate advanced technology with expert human oversight. Backed by a team of professionals ranging from receptionists to marketing experts, developers, assessors, and skilled installers, we ensure a holistic approach to security implementation. Whether you're safeguarding your home or protecting your commercial assets, trust Advanced Air and Land Security Solutions to deliver unparalleled security solutions that exceed expectations. Experience the difference with Advanced Air and Land Security Solutions , where safety meets innovation.

Power Marketing Group, LLC
Power Marketing Group, LLC
Are you looking to save money on your energy bill? Power Marketing Group, LLC is your licensed energy broker and solar dealer in PA and NJ. In business since 2011, working with energy suppliers in deregulated markets to bring various energy products to residential and commercial customers. Our management team has a combined 50+ years of experience in the energy industry. We deliver products directly to consumers with a professional and personal touch, and we provide our customers choices with low rates, price protection, renewable power, solar incentives, rewards programs, and many other benefits of the alternative energy market. We have partnered with the best solar providers in the country to offer our customers new ways they can control their energy costs, take advantage of Federal and State incentives, along with helping improve the environment by utilizing the power of the Sun!
"It went great"
Nelson K on August 2022
Are you looking to save money on your energy bill? Power Marketing Group, LLC is your licensed energy broker and solar dealer in PA and NJ. In business since 2011, working with energy suppliers in deregulated markets to bring various energy products to residential and commercial customers. Our management team has a combined 50+ years of experience in the energy industry. We deliver products directly to consumers with a professional and personal touch, and we provide our customers choices with low rates, price protection, renewable power, solar incentives, rewards programs, and many other benefits of the alternative energy market. We have partnered with the best solar providers in the country to offer our customers new ways they can control their energy costs, take advantage of Federal and State incentives, along with helping improve the environment by utilizing the power of the Sun!
"It went great"
Nelson K on August 2022

AF Electric LLC
AF Electric LLC
With over 25 years of experience in the electrical field, AF Electric LLC offers a full range of residential and commercial electrical services. Servicing New Jersey, AF Electric is fully licensed and insured - NJ License #34EB01801300. From new electrical installations, repairs, and maintenance - the AF team does it all! Commercial/residential services include: Communications New Electrical Installations Electrical Service Repairs Security Alarm Systems Fire Alarm Systems Electrical Panels Boiler Installation & Repair HVAC Units Lighting Installation Electrical Switch Experts 220 Line Appliance Experts Generator Installation & Repair Industrial Maintenance
With over 25 years of experience in the electrical field, AF Electric LLC offers a full range of residential and commercial electrical services. Servicing New Jersey, AF Electric is fully licensed and insured - NJ License #34EB01801300. From new electrical installations, repairs, and maintenance - the AF team does it all! Commercial/residential services include: Communications New Electrical Installations Electrical Service Repairs Security Alarm Systems Fire Alarm Systems Electrical Panels Boiler Installation & Repair HVAC Units Lighting Installation Electrical Switch Experts 220 Line Appliance Experts Generator Installation & Repair Industrial Maintenance
Express Telecommunications
Express Telecommunications
Installation company that's offers various services as well as equipment
Installation company that's offers various services as well as equipment

USA Alarm Service, Inc
USA Alarm Service, Inc
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
Peterson Protection
Peterson Protection
Residential and Commercial Security Systems CCTV
Residential and Commercial Security Systems CCTV
ElectroCity LLC
ElectroCity LLC
ElectroCity LLC specializes in security and burglary alarm systems, smart home systems, low-voltage and access control systems, VoIP telephony and IT services including network installation and setup. We are an authorized Honeywell dealer and can install, upgrade or replace broken parts for your existing Honeywell security systems. We offer very competitive rates for centralized security monitoring starting as low as $14/mo. If you have a Honeywell security system install at your premise, we can update your existing central monitoring plan to lower your monthly payment significantly. For all clients we offer installation of CCTV (closed-circuit television) systems, i.e. video cameras of either TVI or IP type, as well as setting up remote computers and smartphones to enable remote camera viewing and playback. For small businesses we offer advanced IT services, VoIP telephone systems, network installation and setup services. We primarily cater to general contractors, small businesses, and residential customers. For residential clients we offer a wide range of electrical service and repairs, ranging up from fixing lights and receptacles to full house wiring and upgrading electrical panelboards. We are licensed and insured for general liability and errors and omissions.
ElectroCity LLC specializes in security and burglary alarm systems, smart home systems, low-voltage and access control systems, VoIP telephony and IT services including network installation and setup. We are an authorized Honeywell dealer and can install, upgrade or replace broken parts for your existing Honeywell security systems. We offer very competitive rates for centralized security monitoring starting as low as $14/mo. If you have a Honeywell security system install at your premise, we can update your existing central monitoring plan to lower your monthly payment significantly. For all clients we offer installation of CCTV (closed-circuit television) systems, i.e. video cameras of either TVI or IP type, as well as setting up remote computers and smartphones to enable remote camera viewing and playback. For small businesses we offer advanced IT services, VoIP telephone systems, network installation and setup services. We primarily cater to general contractors, small businesses, and residential customers. For residential clients we offer a wide range of electrical service and repairs, ranging up from fixing lights and receptacles to full house wiring and upgrading electrical panelboards. We are licensed and insured for general liability and errors and omissions.
The Greenwich, NJ homeowners’ guide to home security system services
From average costs to expert advice, get all the answers you need to get your job done.

Discover how much smoke detector installation costs. Understand your out-of-pocket expenses so you can protect your family and home.

A security camera system gives you peace of mind that there’s always a watchful eye on your home. Learn the costs of installing surveillance cameras.

From warding off intruders to protecting from falls, bars on windows can make a home much more secure. Here’s how much it costs to install bars on windows.

When it comes to home security, you’ll want to do things right. Use this guide to measure your windows and learn how to install bars on windows properly.

Which is better for your home: a wired security system or a wireless system? We’ll explore the pros and cons of each option to help you decide.

Whether it’s for comfort or security, learn how presence detectors and motion detectors can make your home smart and secure.
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