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Best home security system pros near Harrington, DE

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

Avatar for ADT
ADT
4.5(
891
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Harrington, DE and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"I used to work in the security industry. Once I got married and had kids I definitely wanted a home security system. Bought ADT about a month ago and it’s worked out excellent. No glitches or issues and everyone was awesome in the buying and activation process."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

33 neighbors recently requested a quote
Recommended by88%of homeowners
Crest Electric
4.9(
29
)
Smart Home System - Install or ServiceAlarm or Security System - InstallAlarm or Security System - Install - For Business+3 more

Serving Harrington, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Emergency services offered

Customers say: True professional

"A+++ Company! Crest Electric was a complete joy to have working in my home. If you're searching, give them a call! They wont disappoint! I have used them multiple times and will be calling them for more electric work on my older home in the future. Pricing was very reasonable. Very professional service. They answered all my questions no matter how many times I needed an explanation! Haha! I referred them to a few friends & family members needed electric work in their homes. I love my new kitchen lighting ?. Thank you again for making my house feel more like home again Crest Electric!! ?"
Response time1 day
4 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Mikes Electrical
Mikes Electrical
4.6(
49
)
Alarm or Security System - MonitorAlarm or Security System - InstallAlarm or Security System - Install - For Business+3 more

Serving Harrington, DE and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Credit card accepted

"Home Inspection revealed a red alert on the home grounding. Mike’s Electrical came out to my house within the hour and inspected all electrical components involved. The house is in fact grounded and there is no longer a problem with this electrical issue. Thank you for Mike’s quick response and expertise in resolving the situation. Highly recommend them for your electrical needs!"
Residential lighting
Electrical
Residential
Residential lighting
Electrical

+64

Response time9 hrs
Response rate100%
8 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 Harrington, DE 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 CASTILLOSA GROUP LLC
CASTILLOSA GROUP LLC
5.0(
8
)
Surveillance Cameras - Install or Repair

Serving Harrington, DE and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

Castillosa Group is a Delaware home improvement contractor providing professional remodeling, installation, repair and improvement services for residential properties. From kitchens and bathrooms to doors, outdoor living projects, drywall, additions and specialty installations, we provide complete project solutions with a focus on quality workmanship, clear communication and dependable service.

Interior Doors upgrade
Interior Doors upgrade
Interior Doors upgrade
Interior Doors upgrade
New room addition

+11

4 neighbors recently requested a quote
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Home Security Systems FAQs, answered by experts

While security hubs can streamline the management of security cameras, the placement of cameras itself is often determined by factors like your property layout, security objectives, and areas of concern.

If you're wondering what you should do with your old security alarm system after installing a new one, one option is to properly dispose of it at an electronics collection facility. Otherwise, if your old system is still in good shape, you can also donate it for someone else to use in their home.

Yes, adding ease of use and remote access via smartphones.

Yes, you can install a home security system in an old house. In fact, you can install a security system in any home. Some wiring may need to be added, but most home security systems do not require a lot of additional wiring. Wireless security systems can easily be installed with minimal additional wiring, if any at all. Most wireless security systems can be monitored and controlled from your smartphone, and the cameras and sensors operate on batteries.

The main difference between different security sensor options is the type of motion each detects. A motion detector monitors obvious movements in hallways, entrances, and exits. On the other hand, a presence detector is more sensitive and captures smaller moves. A window sensor typically focuses on the opening and closing of the window, whereas a glass break sensor alarms you when a glass is broken.

The Harrington, DE homeowners’ guide to home security system services

From average costs to expert advice, get all the answers you need to get your job done.