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Top-Rated Home security system pros in Merrifield - Updated Nov 2026

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
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Additional Photos

+21

1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for ADT
ADT
4.5(
889
)
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

36 neighbors recently requested a quote
Recommended by88%of homeowners
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
Moh Hajizada
New to Angi
Surveillance Cameras - Install or Repair

Serving Merrifield, VA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Hi, my name is Moh. I’m a reliable and hardworking handyman who takes pride in helping people keep their homes in great shape. I handle a variety of home repair and improvement jobs including furniture assembly, minor repairs, mounting TVs, painting, and general maintenance. I focus on doing quality work, showing up on time, and making sure customers are happy with the results. I look forward to helping you with your next project!

Grab bar installation
11 neighbors recently requested a quote
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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Home Security Systems FAQs, answered by experts

Professional home automation services can include automation for nearly anything in your home, so the possibilities are endless. Some of the more common things homeowners use automation for include the following:

  • Heating and cooling for automatic comfort

  • Security cameras and emergency call systems

  • Door and window sensors to detect opening, closing, and break-ins

  • Solar system automation to maximize energy savings

  • Automatic door locks

  • Garage door openers

  • Speaker systems

  • Lighting

  • Appliances

  • Smoke and CO detectors

  • Blinds and other window coverings

  • Lawn irrigation systems

  • Water monitoring

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.

Options include wired or wireless systems with night vision and motion detection.

You likely can reset your house alarm without the code, but it depends on many factors like how it’s wired and whether or not there’s a default reset code. Most companies make bypassing a security alarm without entering your code challenging to prevent burglars from simply resetting the alarm during a break-in. Your best bet is to contact your alarm company directly to get specialized support for your situation. 

But, while you wait for support, you can disconnect it from the power source to stop the alarm from going off.

Security camera prices vary widely, with individual cameras typically ranging from $125 to $450 on average, not including professional installation costs. The camera's quality also impacts what you pay. Expect to pay more for desirable features, including a resolution of 1080p or higher, a field of view over 110 degrees, and enhanced night vision. Remember, your out-of-pocket installation cost will increase significantly when purchasing a complete system to cover your property inside and out.

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.