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

Avatar for ADT
ADT
4.5(
889
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Cambridge, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"With crime and break-ins picking up around the city, we felt it was time to invest in home security. Using ADT for the entire process was excellent. They added an extra motion detector to our equipment package for being new customers. We also added the smoke and carbon monoxide detectors. All and all, a great overall security and automation system."
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 SteadFast Systems, LLC
SteadFast Systems, LLC
5.0(
152
)
Building Automation System - Install or Service - For BusinessSurveillance Cameras - Install or Repair

Serving Cambridge, MD and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"This Company is Incredible... Tom came out and mounted 3 Tv's, . & did it perfectly.. He is very professional, , knowledgeable, on time and overall fantastic.. I can not say enough good things about Tom and this company.. He also came back a 2nd time (though he did not have to) and help me learn how to program and use my remotes. In this day and age it is very hard to find good service and quality people who actually care about the customer.. I know the highest rating on this site is a 5 star But I would give Steadfast Systems & Thomas a 10 star rating if i was allowed too!! Great Service, Great Company and a Great guy.. I already referred him to my neighbor and he fixed their TV right on the spot. I will definite use them for sound and security systems when we get finished moving in.. My Hats off to Steadfast Systems and Thomas.. 10 stars! I 'm so glad I found them, .."
Front Camera
Back Camera
Back Camera
Front Showroom
LTS CloseUp

+20

Response time11 hrs
4 neighbors recently requested a quote
Recommended by100%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 Cambridge, MD and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Credit card accepted

"Yesterday I called Mike while our local firemen were at my house for an emergency. He came straight over and arrived within 20 minutes. He discovered my issue was a Delmarva Power issue as my house was not receiving adequate power. Delmarva Power technician discovered a break in our underground wires. I am thankful for Mike coming so quickly and being professional during such a chaotic time for us. I will be calling Mike this week to schedule additional work to our home and will call him with any electrical needs in the future. Thank you, Mike!"
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 Cambridge, MD 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 Cambridge, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I recently had 1st Security install a system in my new house and so far have been very pleased with all aspects of the system, from the initial estimate to the installation to the functioning of the system itself. Jeremy did our initial estimate and provided us with a thorough explanation of the system. I already had done a significant amount of research comparing Alarm.com to ADT and some of the self-install options, but Jeremy was able to provide even more information and help me to understand better the pros and cons of each approach. Larry did our installation and also was very friendly and knowledgeable, explaining each step of the installation process and providing me with a tutorial at the end. My wife and I have had no issues with the system so far. It is very intuitive, and we have been able to customize it to fit our unique needs. I highly recommend considering 1st Security for anyone looking at installing, switching, or upgrading their security system."
Recommended by94%of homeowners
Showing 1-10 of 32
Home Security Systems FAQs, answered by experts

This is the topic of much debate, though there is no “better,” as it depends on personal preferences. Some of the components of a wireless system keep working when the power goes out, as they are battery-powered. On the other hand, a wireless system typically connects to your modem and router. Wired systems use landlines to communicate, which never go out on their own unless they’re physically cut.

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.

Technically, there isn't a difference between safe rooms and storm shelters. Both are designed to protect you from storms and extreme weather events. People often use “safe room” when discussing a shelter inside a building and storm shelter when talking about a detached unit. 

Additionally, a safe room is understood to have more functions than a storm shelter. You may seek shelter in a safe room when you believe an intruder is in the home or when under another type of threat. 

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.

It's recommended that you have an upload speed of at least 10 megabits per second (Mpbs) in order to use a wireless security camera.

The Cambridge, MD homeowners’ guide to home security system services

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