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Avatar for ADT
ADT
4.5(
872
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Merrifield, VA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"ADT has exceeded my expectations! The system is reliable, the app is easy to use, and the customer service team is always helpful. I appreciate the environmental monitoring features, which go beyond just security. Knowing my home is protected 24/7 is priceless. I highly recommend ADT to anyone looking for a trustworthy security provider."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

66 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Red and Black Security
Red and Black Security
5.0(
7
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Monitor+3 more

Serving Merrifield, VA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Mr. Sokol was absolutely amazing! He did an excellent job with our alarm and security system installation and made the entire process smooth and easy. He was extremely knowledgeable, professional, and great to work with. He took the time to make sure everything was installed properly and that we understood how the system worked. I would highly recommend Mr. Sokol to anyone looking for reliable and knowledgeable security installation. Excellent service from start to finish!"
Alarm System Install
Alarm System Install
Alarm System Install
Alarm System Install
Alarm System Install

+6

5 neighbors recently requested a quote
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving Merrifield, VA and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Credit card accepted

Protect Your Home is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide. Since we emerged in 1998, we've grown from a company of few to having over 2,000 high performance team members, three locations in Indianapolis, a sales center in Kentucky, and over 128 field branches across the country—and we're still growing.\n\nFor nearly 20 years, Protect Your Home has partnered with ADT®, the #1 name in home security. Today, with our national reach, we are one of ADT's biggest partners and the only partner to be designated as an Authorized Premier Provider.\n\nOur commitment to serving others combined with our projects, events, and culture contribute to the development of our team professionally, personally, and financially.\n\nIt's our mission. It's who we are. It's our legacy.\n

SA and Homeowner
Recommended by100%of homeowners
Avatar for 1st Security USA
1st Security USA
4.6(
362
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+7 more

Serving Merrifield, VA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I have investigated many companies and chose 1st Security because of such good reviews. 
Well I must add my excellent review for this company. Larry installed everything for us and he was 
very knowledgeable and made sure everything worked perfectly before he left.  
If I have questions he answers them right away. 
I would absolutely recommend this company to do your work. "
Recommended by94%of homeowners
Avatar for CSI Secure Solutions
CSI Secure Solutions
4.4(
114
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+5 more

Serving Merrifield, VA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I communicated with Rob Calbo for services of a background check with CSI Secure Solutions and he was fantastic.
He spoke with me in a very professional manner and put me at ease right away.
The process was seamless and my request was delivered very efficiently. Within just a few hours of providing them with information, I was able to get feedback. Rob took the time to speak with me and answered all of my questions. 
I will definitely be using them again in the future should the need arise, and I would definitely recommend them as being very efficient, professional and reliable.

"
Background Checks
Employee Check
Background Report
Surveillance
Infidelity Monitoring

+12

Recommended by85%of homeowners
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Home Security Systems questions, answered by experts

Leaving a light on at night probably does not deter burglars as much as we would like. While there isn’t much evidence supporting the theory that lights deter burglars, there’s not anything disproving it either. If you feel like it offers added security because a burglar thinks you’re at home, then you can set your lights to a timer so they go off and on at intervals, mimicking someone moving around inside the house at night. A better idea is to install motion sensor lights in your yard.

Several types of deadbolts are available, including single-cylinder, double-cylinder, rim, smart, and electronic deadbolt locks. The most common type found in U.S. homes is the single-cylinder deadbolt, which uses a key on the exterior and a thumb turn on the interior. A double-cylinder deadbolt features two locking mechanisms and requires a key to be operated from both the inside and the outside.

A study from the University of North Carolina found that security system signs were one of the top ten deterrents for burglars when choosing a target, so they do have some effect. However, you can get into legal trouble for putting up fake signage, so it’s best only to put up signs when you have the alarms to back them up.

There is no “better” option, as it depends on your personal preferences and home’s needs. Wireless systems are much easier to install, making them DIY-friendly. Wired systems offer a more reliable connection that is not tied to a router, but they typically require professional installation.

Instead of a security door, you might opt for a heavy-duty screen door made from durable mesh, which allows better sunlight and airflow. Additionally, you could enhance security by installing strong locks on your existing door. A double-cylinder deadbolt provides robust security; however, be aware that some local laws prohibit them due to safety concerns during emergencies.

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.