
Get matched with top home security system pros in Merrifield, VA
There are 11 highly-rated local home security system pros.
Need a pro for your home security system service project in Merrifield, VA?
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Verified Reviews for Home Security System Service pros in Merrifield, VA
*The Angi rating for Home Security System Service companies in Merrifield, VA 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 Merrifield, VA 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 Merrifield

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

Ultra Guard Security Systems
Ultra Guard Security Systems
We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.
"They are very responsive, timely and fixed my problems. They work with us on an annual basis."
JANE P on March 2023
We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.
"They are very responsive, timely and fixed my problems. They work with us on an annual basis."
JANE P on March 2023

Absolute Electrical Contractors LLC
Absolute Electrical Contractors LLC
Our electricians are always Prompt, Courteous, Respectful of your home. More than 20 years in Montgomery County. We cover the whole DC area. Accredited Better Business Bureau Member Absolutely no hidden fees licensed & insured in MD, DC, & VA. Let us help you go green & save yourself some green $s. Eco-friendly solutions, home remodeling/renovations, new home installations, upgrading of service, upgrade fuse box to breaker box, troubleshooting & repairs, home inspections. We design, install, & repair: outdoor/landscape lighting, security lighting & systems, communications systems/telephones & systems wiring, data (internet) wiring, cable and fios tv wiring, recessed & track lighting, ceiling fans, attic exhaust fans, light fixture & dimmers, plugs & switches, emergency generators, appliances. better business bureau certified member. Many people believe that their car is the largest single source of air pollution for which they are personally responsible. But in fact, the average home causes the emission of more than twice as much carbon dioxide--the principal greenhouse gas--as the average car. This is because most of the energy consumed in our homes is produced by burning fossil fuels like coal, oil, and natural gas. This pollution is actually a hidden cost for the energy We use, over and above the dizzying $110 billion Americans spend each year on their home energy bills that's nearly $1,300 per house. Much of this energy use is unnecessary because there are a variety of proven, widely available products on the market today (heating, cooling, appliances, windows, lighting, etc.) to drastically reduce your home's energy bills, and accompanying pollution. What's more, many of these products actually improve the comfort and livability of your home.
"Andre was extremely helpful and kind with the install - I was having issues with my power in my rooms, he helped me navigate the issue, replace the needed sockets, and also gave me extra help regarding recommendations for electrical safety. Could not recommend enough, thanks Andre!"
Eniola O on May 2025
Our electricians are always Prompt, Courteous, Respectful of your home. More than 20 years in Montgomery County. We cover the whole DC area. Accredited Better Business Bureau Member Absolutely no hidden fees licensed & insured in MD, DC, & VA. Let us help you go green & save yourself some green $s. Eco-friendly solutions, home remodeling/renovations, new home installations, upgrading of service, upgrade fuse box to breaker box, troubleshooting & repairs, home inspections. We design, install, & repair: outdoor/landscape lighting, security lighting & systems, communications systems/telephones & systems wiring, data (internet) wiring, cable and fios tv wiring, recessed & track lighting, ceiling fans, attic exhaust fans, light fixture & dimmers, plugs & switches, emergency generators, appliances. better business bureau certified member. Many people believe that their car is the largest single source of air pollution for which they are personally responsible. But in fact, the average home causes the emission of more than twice as much carbon dioxide--the principal greenhouse gas--as the average car. This is because most of the energy consumed in our homes is produced by burning fossil fuels like coal, oil, and natural gas. This pollution is actually a hidden cost for the energy We use, over and above the dizzying $110 billion Americans spend each year on their home energy bills that's nearly $1,300 per house. Much of this energy use is unnecessary because there are a variety of proven, widely available products on the market today (heating, cooling, appliances, windows, lighting, etc.) to drastically reduce your home's energy bills, and accompanying pollution. What's more, many of these products actually improve the comfort and livability of your home.
"Andre was extremely helpful and kind with the install - I was having issues with my power in my rooms, he helped me navigate the issue, replace the needed sockets, and also gave me extra help regarding recommendations for electrical safety. Could not recommend enough, thanks Andre!"
Eniola O on May 2025
King General Contracting
King General Contracting
King General Contracting, specializes in Exterior and Interior Home Repairs, Remodels and Upgrades. Our loyal list of Clients include Real Estate Brokers, Investors and Insurance Companies. We have the Experience, the Equipment and Skilled Staff for a vast range of projects like Demolition, Stucco, Stud Framing, Drop Ceilings, Flooring. We take pride in our Craftsmanship and enjoy delivering a functional Home or Commercial environment on every project we perform on. Our Owners experience in Commercial Project Management reflects in our Craftsmanship.
"If you’re lucky enough to hire Oscar and his crew at King General Contracting, consider your job handled—and handled with integrity, skill, and professionalism. From start to finish, he was honest, transparent, and incredibly hardworking. He shows up on time, sticks to the budget, and most importantly—does exactly what he says he will do, without shortcuts or surprises. The quality of his work? Exceptional. Every detail was done with care and craftsmanship. You can tell he takes real pride in doing the job right, not just fast. I will call Oscar and King General Contracting from now on. Highly, highly recommended."
Paul M on August 2025
King General Contracting, specializes in Exterior and Interior Home Repairs, Remodels and Upgrades. Our loyal list of Clients include Real Estate Brokers, Investors and Insurance Companies. We have the Experience, the Equipment and Skilled Staff for a vast range of projects like Demolition, Stucco, Stud Framing, Drop Ceilings, Flooring. We take pride in our Craftsmanship and enjoy delivering a functional Home or Commercial environment on every project we perform on. Our Owners experience in Commercial Project Management reflects in our Craftsmanship.
"If you’re lucky enough to hire Oscar and his crew at King General Contracting, consider your job handled—and handled with integrity, skill, and professionalism. From start to finish, he was honest, transparent, and incredibly hardworking. He shows up on time, sticks to the budget, and most importantly—does exactly what he says he will do, without shortcuts or surprises. The quality of his work? Exceptional. Every detail was done with care and craftsmanship. You can tell he takes real pride in doing the job right, not just fast. I will call Oscar and King General Contracting from now on. Highly, highly recommended."
Paul M on August 2025
Electrical Solutions, LLC
Electrical Solutions, LLC
Electrical Solutions, LLC, prides itself on providing the best customer service possible. Our references will back that statement up. Call us today and ask about our specials!
"They do excellent work. Very professional and went above and beyond, and helped us get to some issues above the electrical work as well."
Boyd W on December 2017
Electrical Solutions, LLC, prides itself on providing the best customer service possible. Our references will back that statement up. Call us today and ask about our specials!
"They do excellent work. Very professional and went above and beyond, and helped us get to some issues above the electrical work as well."
Boyd W on December 2017

DistinctHD, LLC
DistinctHD, LLC
We are a small audio, visual, and security company operating out of Stafford, Virginia. DistinctHD, LLC was formed in March 2010 as a company that only installed televisions and television systems for hotels across the United States. As a company we have installed over 100,000 televisions in various businesses, as well as countless DIRECTV systems that provide the content to millions of guests. Since forming in 2010, we have expanded to what we are today and now provide a wide variety of services, including high end camera systems, security systems, audio visual equipment, and the latest smart home technology.
"Fantastic service and very responsive"
Scott S on August 2023
We are a small audio, visual, and security company operating out of Stafford, Virginia. DistinctHD, LLC was formed in March 2010 as a company that only installed televisions and television systems for hotels across the United States. As a company we have installed over 100,000 televisions in various businesses, as well as countless DIRECTV systems that provide the content to millions of guests. Since forming in 2010, we have expanded to what we are today and now provide a wide variety of services, including high end camera systems, security systems, audio visual equipment, and the latest smart home technology.
"Fantastic service and very responsive"
Scott S on August 2023

Fortress Protection Group, Inc
Fortress Protection Group, Inc
Fortress Protection Group, Inc is a full service fire protection and security company that works with homeowners, property managers, general contractors and government organizations.
Fortress Protection Group, Inc is a full service fire protection and security company that works with homeowners, property managers, general contractors and government organizations.
Home Automation
OdyTech IT Consulting
OdyTech IT Consulting
Sr IT Consultant with over 23 years of experience in Networking, IT Support & Computer Repair. Open 24/7 (Fee's are based on 1-1/2x for hours from 11pm to 4:30am).
Sr IT Consultant with over 23 years of experience in Networking, IT Support & Computer Repair. Open 24/7 (Fee's are based on 1-1/2x for hours from 11pm to 4:30am).

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.
The Merrifield, VA 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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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.
•Discover wall safe installation cost details. Learn about average prices, key cost factors, and tips to save on your wall safe project.

Every homeowner should learn how to replace a hardwired smoke alarm, which you must do at least every decade. This guide will talk you through the process.

Are Wi-Fi security cameras safe? Learn the pros and cons and if it’s the right system for your residence.

Home security begins at the front door. Check out our tips to improve your front entry door security as a barrier against unwanted intruders. There are many different strategies, from installing an entirely new door to an updated lock.
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