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Top-Rated Home security system pros in Saint Leonard - 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 Saint Leonard, MD 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
Modern Systems Integration, LLC
4.0(
82
)
Surveillance Cameras - Install or RepairSurveillance Cameras - Install or Repair - For Business

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"I would not hesitate to recommend MSI to anyone needing to have security cameras or alarms installed in their home. They always arrived at the time that was specified which was 0830. On their first attempt to install the cameras it was raining profusely but they tried to install them anyway. However, at one point it became to dangerous and they had to stop and reschedule the installment. Nigel Frazier and his team are very professional and knowledgeable about the security system that they install. I'm very pleased with their professionalism and reliability."
Response time1 day
13 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving Saint Leonard, 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
Moh Hajizada
New to Angi
Surveillance Cameras - Install or Repair

Serving Saint Leonard, MD 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
19 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 Saint Leonard, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Great company to deal with. Totally customer focused. My wife was not comfortable with me installing our security system myself, so internet based alarm companies were a no go. I contacted our existing company, Vector, Vivant, ADT & 1st Security. I met with all of the reps. Jeremy from 1st Security came to our home right away to conduct a detailed security assessment. He listened to our needs and our concerns with our existing landline based security system (through Vector), and he designed an effective yet practical and affordable set up for our home. Their prices cannot be beat- trust me I did my homework. Larry came to install the new security system and he was also great to deal with. Knowledgeable and patient- he took his time to explain how the system worked and gave us his cell # in case we had any issues. Kudos to 1st Security USA! Great folks doing business the way it should be done- honest and professional. I will be spreading the word"
Recommended by94%of homeowners
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 Saint Leonard, MD and surrounding areas

In business since 1998

Credit card accepted

"They gave us the best rate and the setup was great for ADT system. The installer did have to tell us about other options that would cost more money but he did not pressure us when we declined. We had door, window and motion detectors included. They gave us a week to practice on the new system, but we could call if we were ready to go live sooner which we did. Set up was quick, easy and uneventful. Very nice installer, Phillip Brown. The cost was quoted at a low price, but the bill came from ADT and was much higher. We were told the contract to ADT did not catch up and we will be getting the lower price with a reimbursement for the excess of the first bill. We did the $99 install and are getting a $100 gift card back. 3 year contract is a little annoying but we plan to stay here for a long time."
Protect Your Home Vehicle
Recommended by63%of homeowners
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Home Security Systems FAQs, answered by experts

While all security lighting systems offer different benefits, motion sensor security lights have the most advantages and the fewest cons for the average homeowner. While the upfront cost can be hefty, automatic, motion-detected activation will reduce your energy bills in the long run by ensuring the lights are only turned on when necessary. Plus, they’ll ward off intruders and help invited guests find their way onto your property in equal measure. 

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.

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.

Depending on your needs and wants, investing in a security door can be well worth the cost. Now that you know the pros and cons, you can decide if it’s a purchase that makes sense for your family. If you’re ready to have one installed in your home, look into security door installers in your area.

Yes, evaluating needs based on home size, layout, and climate.

The Saint Leonard, 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.