
Get matched with top home security system pros in Cos Cob, CT
There are 6 highly-rated local home security system pros.
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Verified Reviews for Home Security System Service pros in Cos Cob, CT
*The Angi rating for Home Security System Service companies in Cos Cob, CT 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 Cos Cob, CT 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 25, 2025
Find Home security system pros in Cos Cob

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
Fusion Tech Solutions
Fusion Tech Solutions
Fusion Tech Solutions is a dedicated and highly skilled company serving the IT needs of over 300 business and residential clients in the New York City, Westchester and Connecticut area, and growing every day. We pride ourselves on knowing everything about your technology and advising you on how you can get the most out of it to improve both your personal and business productivity. We make it a priority to provide our clients with flawless service, perfect results and absolute reliability. We go that extra mile to make any project you entrust us with a stress free, smooth process with a friendly point of contact keeping you updated from start to completion. Our business is to know your business. We provide you with the answers you need, advise you on cost and process, and plan your project for optimum results to ensure your technology is being the most effective and efficient it can be. At 411 Tech Solutions, we cater to the home user, entrepreneur and to the small business owner. We won't try to impress you with all the techno-babble. We'll just listen to your needs and tell you in plain English what needs to be done. And then we'll be available 24/7 just in case you need us. Our business is to know your business and keep it running smoothly.
"Joe and his team of electricians led by Paul were amazing to work with! Very professional, on-time, and fair pricing estimates for electrical work I needed in my condo, including moving the position of a ceiling light and setting up two new sconces, both of which required patching up the drywall afterwards and they made it look seamless. Joe really values quality work and made sure to check in throughout the job and afterwards to make sure I was satisfied, answering any questions I had. They offer a ton of handyman services and I will be booking them for future tv mounting needs as well."
Duaa E on December 2024
Fusion Tech Solutions is a dedicated and highly skilled company serving the IT needs of over 300 business and residential clients in the New York City, Westchester and Connecticut area, and growing every day. We pride ourselves on knowing everything about your technology and advising you on how you can get the most out of it to improve both your personal and business productivity. We make it a priority to provide our clients with flawless service, perfect results and absolute reliability. We go that extra mile to make any project you entrust us with a stress free, smooth process with a friendly point of contact keeping you updated from start to completion. Our business is to know your business. We provide you with the answers you need, advise you on cost and process, and plan your project for optimum results to ensure your technology is being the most effective and efficient it can be. At 411 Tech Solutions, we cater to the home user, entrepreneur and to the small business owner. We won't try to impress you with all the techno-babble. We'll just listen to your needs and tell you in plain English what needs to be done. And then we'll be available 24/7 just in case you need us. Our business is to know your business and keep it running smoothly.
"Joe and his team of electricians led by Paul were amazing to work with! Very professional, on-time, and fair pricing estimates for electrical work I needed in my condo, including moving the position of a ceiling light and setting up two new sconces, both of which required patching up the drywall afterwards and they made it look seamless. Joe really values quality work and made sure to check in throughout the job and afterwards to make sure I was satisfied, answering any questions I had. They offer a ton of handyman services and I will be booking them for future tv mounting needs as well."
Duaa E on December 2024

Mikell Electric
Mikell Electric
Mikell Electric is a smaller company located in Bethel, CT. The young owner, Spencer, prides himself in providing quality electrical work for an affordable price. We cover anything commercial or residential. From service and emergency calls to wiring your dream home or a new restaurant, we have you covered. We also are a Generac Generator dealer for any of your backup power needs. Call or text our office at 203-220-8867 or email us at [email protected] to schedule a visit or a free estimate!
"Friday April 25 - company reached out after appointment starting time that they were no longer available and needed to reschedule Wednesday April 30 - company late for appointment Friday May 9th - company rescheduled installation date Wednesday May 14th - company rescheduled installation date again Saturday May 16th - company reached out at appointment starting time to reschedule Saturday May 16th - after we voiced our frustration with the above, company indicated with 40 minutes advance notice that they may not be able to make appt Saturday May 16th - company no-showed the time they suggested. We are unable to get in touch with company. Despite the company having read receipt functionality turned on, we did not receive a response after they read our message asking if anyone was coming so we could plan our Saturday accordingly "
Spencer F on May 2025
Mikell Electric is a smaller company located in Bethel, CT. The young owner, Spencer, prides himself in providing quality electrical work for an affordable price. We cover anything commercial or residential. From service and emergency calls to wiring your dream home or a new restaurant, we have you covered. We also are a Generac Generator dealer for any of your backup power needs. Call or text our office at 203-220-8867 or email us at [email protected] to schedule a visit or a free estimate!
"Friday April 25 - company reached out after appointment starting time that they were no longer available and needed to reschedule Wednesday April 30 - company late for appointment Friday May 9th - company rescheduled installation date Wednesday May 14th - company rescheduled installation date again Saturday May 16th - company reached out at appointment starting time to reschedule Saturday May 16th - after we voiced our frustration with the above, company indicated with 40 minutes advance notice that they may not be able to make appt Saturday May 16th - company no-showed the time they suggested. We are unable to get in touch with company. Despite the company having read receipt functionality turned on, we did not receive a response after they read our message asking if anyone was coming so we could plan our Saturday accordingly "
Spencer F on May 2025

Wa/ve Sound and Security, LLC
Wa/ve Sound and Security, LLC
Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!
"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"
Samantha V on March 2025
Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!
"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"
Samantha V on March 2025
Adt
Adt
Sales and install alarm systems for ADT security. I have been in the industry for 15 years. I sell and install the alarms I sell so your not dealing with phone sales people. We provide door sensors, window sensors, smoke detectors, co detectors, flood and temperature sensors, doorbell cameras, outdoor indoor and floodlight cameras.
Sales and install alarm systems for ADT security. I have been in the industry for 15 years. I sell and install the alarms I sell so your not dealing with phone sales people. We provide door sensors, window sensors, smoke detectors, co detectors, flood and temperature sensors, doorbell cameras, outdoor indoor and floodlight cameras.
Alliance Inpack Security Corp.
Alliance Inpack Security Corp.
Alliance Inpack Security Inc. is a professional family owned security company established in Bronx, New York 2011 and has expanded into CT 2023. Alliance Unpack Security Inc. was originally a corporation that provide security guards, armed security, and international body guards to various different clients and businesses. We are now expanding to home security installations for the New York and Connecticut area. We install doorbell cameras, inside/outside surveillance cameras. We provide the equipment or you are able to provide your own. We tailor to our clients specific needs and make special packages with reasonable prices.
Alliance Inpack Security Inc. is a professional family owned security company established in Bronx, New York 2011 and has expanded into CT 2023. Alliance Unpack Security Inc. was originally a corporation that provide security guards, armed security, and international body guards to various different clients and businesses. We are now expanding to home security installations for the New York and Connecticut area. We install doorbell cameras, inside/outside surveillance cameras. We provide the equipment or you are able to provide your own. We tailor to our clients specific needs and make special packages with reasonable prices.
Leed electric
Leed electric
Electrical contractor for residential and commercial. New wiring, lighting, power outlets, generator, landscape lighting,car change point. Flood lights and cameras.
Electrical contractor for residential and commercial. New wiring, lighting, power outlets, generator, landscape lighting,car change point. Flood lights and cameras.

CJL Solutions
CJL Solutions
Dear Customer, We our pleased to announce the launch of our new company. CJL Solutions, as low voltage and electronics technicians. As certified and insured professionals, we offer residential and commercial services to meet all your low voltage and electronics needs. With 15 years of experience in the industry, we have gained the expertise to handle any project. Big or small. Whether you need a complete installation or simply a repair, my team and I will provide you with the best possible service and ensure your satisfaction. We understand that finding a reliable technician can be a challenge. Therefore, we guarantee to deliver quality workmanship and personalized service to each and every one of our clients. Your satisfaction is my top priority, and we will work tirelessly to ensure that your needs are met. We are confident that our skills, expertise, and dedication will exceed your expectations. Thank you for considering our services. We look forward to the opportunity to work with you. Sincerely, Christopher Llanot CJLSolutions 203-668-8374 [email protected]
Dear Customer, We our pleased to announce the launch of our new company. CJL Solutions, as low voltage and electronics technicians. As certified and insured professionals, we offer residential and commercial services to meet all your low voltage and electronics needs. With 15 years of experience in the industry, we have gained the expertise to handle any project. Big or small. Whether you need a complete installation or simply a repair, my team and I will provide you with the best possible service and ensure your satisfaction. We understand that finding a reliable technician can be a challenge. Therefore, we guarantee to deliver quality workmanship and personalized service to each and every one of our clients. Your satisfaction is my top priority, and we will work tirelessly to ensure that your needs are met. We are confident that our skills, expertise, and dedication will exceed your expectations. Thank you for considering our services. We look forward to the opportunity to work with you. Sincerely, Christopher Llanot CJLSolutions 203-668-8374 [email protected]

Electrical Services of Fairfield County LLC Licence # 182478
Electrical Services of Fairfield County LLC Licence # 182478
We are a family-oriented small business dedicated to giving our customers the best experience possible by our trained and professional Electricians. We specialize in high-end residential service work, repairs, and installation.
We are a family-oriented small business dedicated to giving our customers the best experience possible by our trained and professional Electricians. We specialize in high-end residential service work, repairs, and installation.
Vital Technology Solutions
Vital Technology Solutions
We design, install and service the latest cutting-edge electronic security and fire alarm systems. We give our clients our full attention to service and all their projects. We install smart home intrusion detection systems, video surveillance camera systems and home automation systems accessible from your smart phone or tablet, with 24/7 central station monitoring.
We design, install and service the latest cutting-edge electronic security and fire alarm systems. We give our clients our full attention to service and all their projects. We install smart home intrusion detection systems, video surveillance camera systems and home automation systems accessible from your smart phone or tablet, with 24/7 central station monitoring.
The Cos Cob, CT homeowners’ guide to home security system services
From average costs to expert advice, get all the answers you need to get your job done.

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