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Top-Rated Alarm or security system repairers in Baltimore - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets Home Security was a lifesaver! They had to troubleshoot my 3 floor townhouse unit, requiring many trips up and down the stairs. Finally determined that I needed an entire new alarm system but had all the parts and equipment available. Helped me program the app and set my security codes."
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
889
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"The alarm security system in our condo needed to be upgraded. Ryan L, who we worked with on the project was fantastic all-around and COVID safe. Strongly encourage everyone to reach-out to Protect Your Home; the ADT Authorized Premier 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 J A Electric LLC.
J A Electric LLC.
4.9(
53
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Very professional and knowledgeable in his work. He worked and cleaned afterwards. The only problem is the ceiling was cut while installing the light and I would like it repaired please."
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+25

Response time12 hrs
6 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for Security One
Security One
4.1(
456
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2007

Credit card accepted

"Good price. Typical monitoring services. My only real issue is that most of their account servicing needs to be done via snail mail or over the phone--they do not have a website to update contact info, billing info, or other details."
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+16

Recommended by84%of homeowners
Avatar for Frontpoint
Frontpoint
4.7(
8,819
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Very easy to set up this system. We had a partially wired system for over 20 years. It was simple to replace the sensors with the new ones. So much more compact and efficient that our old system. There were very few glitches and it was very easy to contact customer support to resolve them in a matter of minutes."
Recommended by93%of homeowners
Avatar for 1st Security USA
1st Security USA
4.6(
362
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Amazing system! Did a lot of research on alarm systems....so glad I went with 1st security! They came to my house and explained everything to me, were not pushy at all. Came and installed the system a few days later....took the time to explain everything to me and did an amazing job with the installation. And the price is excellent, both the installation fee and the month to month. So happy with my decision."
Recommended by94%of homeowners
Avatar for CSI Secure Solutions
CSI Secure Solutions
4.4(
114
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"It is difficult to put into words how grateful and appreciative I am to Chris and his team. My custody issue (as most are) was extremely stressful but after our first meeting, I felt relieved to finally find the professional help I so desperately needed. Every phone conversation and meeting thereafter alleviated my anxiety. Chris and his team were helpful, understanding and efficient. They knew how to get the job done and they did it with warmth and compassion. I cannot say enough about CSI Secure Solutions’ commitment to excellence. Their outstanding professional expertise solved my custody issues seamlessly. Thank you CSI!"
Background Checks
Employee Check
Background Report
Surveillance
Infidelity Monitoring

+12

Recommended by85%of homeowners
Avatar for Tech Control Solutions
Tech Control Solutions
5.0(
13
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2020

Free estimates

Credit card accepted

TechCtrl provides a comprehensive range of services for small businesses and residents looking for a modernized in home/in office entertainment experience. With experienced professionals specializing in home/business entertainment, IT, Data, AV, and Smart Home/Office services , TechCtrl can tailor modernized solutions to fit into individual decor and handyman needs.

Wireless Installation  (TV)
Wireless Installation  (TV)
Wireless Installation  (TV)
Wireless Installation  (TV)
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+5

Recommended by100%of homeowners
Baldino’s Lock & Key
4.8(
12
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 1961

Emergency services offered

Credit card accepted

Multiple storefront locations for fast convenient service and walk in service. Usually within 5 miles of your location. Baldino’s Lock & Key provides quality security products and locksmith services in Maryland, Washington, D.C., and Virginia, serving home and business owners since 1961. Our focus is on the new and exciting security products available today and we back them up with strong technical support and the quality service you deserve. With our friendly and knowledgeable staff to help guide you through the purchase and installation process, you can rest assured that protecting your family or business is our primary objective.

Recommended by90%of homeowners
Avatar for AIO Integrations LLC
AIO Integrations LLC
4.6(
18
)
Alarm or Security System - Repair

Serving Baltimore, MD and surrounding areas

In business since 2020

Emergency services offered

Credit card accepted

AIO provides computer support services for all PC platforms including Apple OSX/iOS, Microsoft Windows, and Google Android devices. \n\nWe are the only company on Angi.com with a BBB A+ rating providing nation-wide IT support on-site/remote services from over 1500 locations. You can call us directly at 832-402-1335, option 1 for sales, to be connected to a sales engineer if you need immediate help. You can also visit our website at https://aiosupport.net. We look forward to helping you!

Helping a Victim who was being Cyber-stocked
WIndows Update Broken
Computer Tune-up
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Recommended by91%of homeowners
Showing 1-10 of 47

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