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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 September 08, 2025

Find Home security system pros in Merrifield

Avatar for Ultra Guard Security Systems
Ultra Guard Security Systems
4.9(
182
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+3 more

Serving Merrifield, VA and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"We moved to Chevy Chase MD. I contacted three different security companies. By far Ultra Guard Security was the best. Andy was very knowable about security systems and not pushy at all. If looking for security system give them a call. You will be pleased."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+21

Recommended by97%of homeowners
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Avatar for ADT
ADT
4.5(
880
)
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

"Got going with ADT system earlier this Fall. It has been good. Still getting used to a much fancier and dynamic system. But it was time for an upgrade and we would suggest ADT to anyone looking to secure their home or their business."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

60 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Red and Black Security
Red and Black Security
5.0(
9
)
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

16 neighbors recently requested a quote
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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
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Avatar for Frontpoint
Frontpoint
4.7(
8,819
)
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 2007

Free estimates

Emergency services offered

"I self installed our FrontPoint system. It went smoothly and my questions were answered efficiently and professionally by the FrontPoint staff. I would highly recommend FrontPoint as a home security system."
Recommended by93%of homeowners
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Avatar for Security One
Security One
4.1(
456
)
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 2007

Credit card accepted

"

All went well, up and running in no time at all. It is very user friendly, you don't need a PHD to operate this system and  we feel  secure and safe knowing that we are being protected 24/7.


"
Pictures
Compare our Compact Door Sensors to our Competitors
Additional Photos
Additional Photos
Additional Photos

+16

Recommended by84%of homeowners
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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
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Avatar for Protect Your Home
Protect Your Home
3.3(
325
)
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 1998

Credit card accepted

"We like their service. We haven't had any problems. They are very good. This was the first time we've had an alarm/security system in our home. The supplier is ADT. I like that I can set my alarm every night before I go to bed."
Protect Your Home Vehicle
Recommended by63%of homeowners
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Avatar for Protect America Home Security
Protect America Home Security
3.5(
227
)
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 1992

Free estimates

Emergency services offered

"We bought our home security system from them a few weeks ago. The guy that installed the system was very nice and knowledgeable about the system. I would use them again in the future."
Platinum Package - Protects up To 15 Doors / Windows for FREE
Protect your Whole Home
Simon XT Touchscreen
Recommended by64%of homeowners
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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

Home security cameras typically do not record continuously 24/7. Most options use motion detection technology to trigger recording when they sense movement or a significant change in their field of view. This approach conserves storage space and reduces the need for constant monitoring. When motion is detected, the camera starts recording and may send alerts to the homeowner. However some cameras offer the option for continuous recording, but this requires substantial storage capacity and may overwrite older footage when space runs out.

You should be able to use your smart doorbell and access your video feed without a subscription. Subscriptions give you special features, such as night vision, downloading, and automatically saving footage for a set amount of days. It’s a good idea to compare plans among different providers before you commit. 

Grounding is a great first step to prevent electrical shock, but you can take it further with GFCI outlets and AFCIs (arc fault circuit interrupters). In particular, AFCIs help protect against the type of electrical arcs that cause fires, like if a mouse chews on a wire or your laptop starts overheating at the wall. These are required in some areas of your home.

In general, keyless door locks are considered safe, and their security depends on the type and quality of the lock. They cannot be picked like a traditional lock and often include added features like biometric access, PIN codes, and smartphone connectivity, which can make them more secure. However, they are not without risks. Potential vulnerabilities include hacking for Wi-Fi-connected models, battery failure, power outages, and technical malfunctions. To maximize security, it is important to choose a reliable brand, stay on top of software updates, and perform regular maintenance. While the risks are different, keyless locks are not considered more dangerous than traditional locks.

Yes, it’s possible a burglar can get through a deadbolt. Some types of deadbolts are harder for an intruder to get through, though. For example, a single-cylinder lock only requires breaking a window nearby and simply turning it. While other locks, such as a double-cylinder lock, may offer greater protection and make it harder for an intruder, no deadbolt is 100 percent effective.

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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