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Top-Rated Home security system pros in El Cajon - Updated Nov 2026

Avatar for Ameritechs
Ameritechs
5.0(
6
)
Smart Home System - Install or Service

Serving El Cajon, CA and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

Ameritechs is your technology integrator serving San Diego County since 1996. We specialize in professional installation and service of video surveillance systems, Wi-Fi and networking, audio/video, access control, and smart home solutions. Whether you're securing a commercial property, upgrading your home entertainment, or improving connectivity, our experienced team delivers clean, reliable, and user-friendly installations. We're fully licensed (C7 #994218), insured, and committed to exceptional customer service. Let us help you make your space smarter, safer, and more connected.

Camera Installation
Improved Coverage
8MP Security Camera
Solar Camera Setup
Security Camera

+1

Recommended by100%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving El Cajon, CA 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 PhoneAll Inc
PhoneAll Inc
5.0(
2
)
Surveillance Cameras - Install or Repair - For BusinessBuilding Automation System - Install or Service - For Business

Serving El Cajon, CA and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

PhoneAll Inc. is a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Give us a call today to get your project started! \n \n

Response time5 hrs
5 neighbors recently requested a quote
Recommended by50%of homeowners
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Home Security Systems FAQs, answered by experts

Security cameras do not need wiring if they are wireless, meaning they are battery-operated and can connect through Wi-Fi. You’ll need to change the batteries on a wireless camera and ensure you have a steady connection to Wi-Fi for video storage. If you have a wired security camera, you’ll need to plug it into an outlet or other power source and a DVR device.

Some Christmas lights are marked as being “UL Safety Certified” or Underwriters Laboratories Safety Certified. This lab is a trusted source for determining the safety standards of electrical products—you should make sure your Christmas lights have this label. Brush up on other electrical safety tips before installing any lighting features. 

Installation typically takes 2-4 hours, depending on the number of components and wiring needs.

False alarms happen, and they could be due to a problem you need to troubleshoot, like faulty wiring, a mistaken setting, or the system needing an update. Turn off your system by disconnecting its power supply (both the battery and transformer) and give the manufacturer a call to see what they advise. 

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.

The El Cajon, CA homeowners’ guide to home security system services

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