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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon193
    Verified home security system services reviews

Verified Reviews for Home Security System Service pros in Frederick, MD

*The Angi rating for Home Security System Service companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.

*The HomeAdvisor rating for Home Security System Service companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Security System Service needs.

Last update on December 25, 2025

Find Home security system pros in Frederick

Avatar for Ultra Guard Security Systems

Ultra Guard Security Systems

4.90(
165
)
•Approved Pro

Ultra Guard Security Systems

4.90(
165
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
37 years of experience

We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.

"They are very responsive, timely and fixed my problems. They work with us on an annual basis."

JANE P on March 2023

We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.

"They are very responsive, timely and fixed my problems. They work with us on an annual basis."

JANE P on March 2023

Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

4.89(
293
)
•Approved Pro

SafeStreets - ADT Authorized Provider

4.89(
293
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
15 years of experience

For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee

"In the past we’ve avoided getting into agreements or contracts with our home security providers but felt comfortable and confident doing so with Safe Streets. Their monitoring and surveillance centers are nationwide and open 24 hours. They made the process really easy and informed us of all the benefits by being under monitoring agreement. Told both of our neighbors about our experience and they plan to sign up too."

Jacob F on November 2025

For 140 years, ADT has been the leading home security provider in the country. SafeStreets, ADT's Authorized Provider, sells and installs ADT-monitored home security systems. Our team consists of 300+ trained consultants, covering more than 90% of the United States across 44 states. We are experts on the latest smart-home technology, and highly focused on giving all customers a 5-Star Experience™. SafeStreets is committed to bringing high-tech security equipment, backed by 24/7 professional monitoring, to the place that matters most - your home. We have same day and next day appointments available, all scheduled within a one hour window. Call us anytime for a custom home security assessment and free quote! Comprehensive Security System ADT 24/7 Monitoring Touch Screen Control Panel Motion Detectors, Glass Break Sensors, & Point-of-Entry Sensors Indoor, Outdoor, & Doorbell Cameras Smart Home Automation Smoke, Carbon Monoxide, & Flood Sensors Mobile App Control Cellular Connection Back-up Battery Supply Maintenance/Extended Warranty Homeowners Insurance Certificate Theft Protection Guarantee

"In the past we’ve avoided getting into agreements or contracts with our home security providers but felt comfortable and confident doing so with Safe Streets. Their monitoring and surveillance centers are nationwide and open 24 hours. They made the process really easy and informed us of all the benefits by being under monitoring agreement. Told both of our neighbors about our experience and they plan to sign up too."

Jacob F on November 2025

Avatar for GNG Services Unlimited

GNG Services Unlimited

4.93(
74
)
•Approved Pro

GNG Services Unlimited

4.93(
74
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
Free onsite estimate

A family owned and operated handyman and junk removal service company established in 2017. We focus on fair flat pricing providing electrical, plumbing, carpentry, drywall painting, exterior, landscaping, andso much more

"Highly recommended to refer. This man gets the job done; effectively and professionally. I am beyond grateful for his services provided. Thank you again GnG "

Lamar M on December 2025

A family owned and operated handyman and junk removal service company established in 2017. We focus on fair flat pricing providing electrical, plumbing, carpentry, drywall painting, exterior, landscaping, andso much more

"Highly recommended to refer. This man gets the job done; effectively and professionally. I am beyond grateful for his services provided. Thank you again GnG "

Lamar M on December 2025

Avatar for Presidential Exteriors LLC

Presidential Exteriors LLC

4.88(
145
)
•Approved Pro

Presidential Exteriors LLC

4.88(
145
)
•Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 years of experience

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I appreciated working with Nick, Vick, Nico and Angel. I had a many day project replacing my roof, gutters and patching/painting drywall. Everyone has been great with communication and follow through. All employees were pleasant and professional. I would highly recommend this company."

Elaine C on December 2025

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I appreciated working with Nick, Vick, Nico and Angel. I had a many day project replacing my roof, gutters and patching/painting drywall. Everyone has been great with communication and follow through. All employees were pleasant and professional. I would highly recommend this company."

Elaine C on December 2025

Avatar for ADT

ADT

4.53(
744
)
•Approved Pro

ADT

4.53(
744
)
•Approved Pro
Super Service Award
Customers say: Terrific value
151 years of experience
Free onsite estimate

ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.

"5 STAR REVIEW FOR ADT SALES REPRESENTATIVE FRANK G. PROFESSIONAL, COURTEOUS, AND EXTREMELY KNOWLEDGEABLE ABOUT THE SECURITY INDUSTRY."

Alesia B on December 2025

ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.

"5 STAR REVIEW FOR ADT SALES REPRESENTATIVE FRANK G. PROFESSIONAL, COURTEOUS, AND EXTREMELY KNOWLEDGEABLE ABOUT THE SECURITY INDUSTRY."

Alesia B on December 2025

Avatar for J A Electric LLC.

J A Electric LLC.

4.83(
36
)
•Approved Pro

J A Electric LLC.

4.83(
36
)
•Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
10 years of experience

10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net

"Antonio was great. I had 2 ceiling fans installed on a 15 foot high pitched ceiling. The fans I purchased were meant for a ceiling with a much smaller pitch so they were not able hang straight as is. I thought I would have to wait and buy some additional hardware to complete the job but Antonio clearly communicated with me to show me why they wouldn’t work and talked me through a few ideas he wanted to try to make it work. It took a bit more time but in the end he was able to make some cuts and holes to the fans and they worked out great in the end. He saved me some time and money so I was happy to leave him with a tip. "

Monika W on December 2025

10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net

"Antonio was great. I had 2 ceiling fans installed on a 15 foot high pitched ceiling. The fans I purchased were meant for a ceiling with a much smaller pitch so they were not able hang straight as is. I thought I would have to wait and buy some additional hardware to complete the job but Antonio clearly communicated with me to show me why they wouldn’t work and talked me through a few ideas he wanted to try to make it work. It took a bit more time but in the end he was able to make some cuts and holes to the fans and they worked out great in the end. He saved me some time and money so I was happy to leave him with a tip. "

Monika W on December 2025

Avatar for Next Level Tecnologies Group, LLC

Next Level Tecnologies Group, LLC

4.89(
33
)
•Approved Pro

Next Level Tecnologies Group, LLC

4.89(
33
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We offer solid experience in commercial and residential audio/video distribution. This includes dedicated theatre and/or media rooms; security cameras and lighting control. We've established a top-notch reputation in the greater Washington, D.C. area.

"We were hoping to get everything operating on one remote, but we donâ t live in a perfect world. The technician was able to show us new and wonderful things with our system though, and he was able to navigate the hideous tangle of wires pretty successfully through the whole process."

Charles G on August 2023

We offer solid experience in commercial and residential audio/video distribution. This includes dedicated theatre and/or media rooms; security cameras and lighting control. We've established a top-notch reputation in the greater Washington, D.C. area.

"We were hoping to get everything operating on one remote, but we donâ t live in a perfect world. The technician was able to show us new and wonderful things with our system though, and he was able to navigate the hideous tangle of wires pretty successfully through the whole process."

Charles G on August 2023

Avatar for JW Home Improvement

JW Home Improvement

4.39(
5,504
)
•Approved Pro

JW Home Improvement

4.39(
5,504
)
•Approved Pro
Customers say: Quality work
24 years of experience
Warranties offered

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025

Avatar for Byers Security

Byers Security

4.83(
289
)
•Approved Pro

Byers Security

4.83(
289
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 years of experience

Byers Security is a local, family owned and operated security services contractor. With over 20-years experience, we provide expert installation & attention to detail. Our Customer Reviews say it all.

"They were professional and delivered as promised. They removed the railing to replace the rusted part, welding a new piece to the existing railing. Then they reinstalled the railing. They strengthened the cement base of the second railing. Both railings were sanded and repainted. Our railings now look as good as new."

Marwan A on October 2025

Byers Security is a local, family owned and operated security services contractor. With over 20-years experience, we provide expert installation & attention to detail. Our Customer Reviews say it all.

"They were professional and delivered as promised. They removed the railing to replace the rusted part, welding a new piece to the existing railing. Then they reinstalled the railing. They strengthened the cement base of the second railing. Both railings were sanded and repainted. Our railings now look as good as new."

Marwan A on October 2025

Avatar for JS Castle Contracting

JS Castle Contracting

4.97(
15
)
•Approved Pro

JS Castle Contracting

4.97(
15
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
20 years of experience

At JS Castle Contracting, LLC, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Have used Joe 3 times now. First to replace 4 exterior doors. Second to refinish some interior paint and trim. Lastly for a complete kitchen remodel. Each and every time he was prompt and very professional with great attention to detail. He has a permanent place in my address book and will certainly be called on again, probably sooner than later."

patrick w on September 2021

At JS Castle Contracting, LLC, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Have used Joe 3 times now. First to replace 4 exterior doors. Second to refinish some interior paint and trim. Lastly for a complete kitchen remodel. Each and every time he was prompt and very professional with great attention to detail. He has a permanent place in my address book and will certainly be called on again, probably sooner than later."

patrick w on September 2021

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Home Security Systems questions, answered by experts

It depends on your specific needs. A security system typically includes alarms, sensors for windows and doors , and 24/7 monitoring services, offering comprehensive protection with immediate response to potential threats. Cameras, on the other hand, primarily provide visual surveillance and evidence collection. A security system is preferable if your primary concern is deterring intruders and receiving real-time alerts. Cameras are ideal for monitoring and recording activities but might offer a different level of active protection. In many cases, a combination of both—a security system with integrated cameras—provides the most robust home security solution, offering prevention and documentation.

You likely can reset your house alarm without the code, but it depends on many factors like how it’s wired and whether or not there’s a default reset code. Most companies make bypassing a security alarm without entering your code challenging to prevent burglars from simply resetting the alarm during a break-in. Your best bet is to contact your alarm company directly to get specialized support for your situation. 

But, while you wait for support, you can disconnect it from the power source to stop the alarm from going off.

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. 

Changing the alarm in your wireless security system is a perfectly reasonable DIY task that most people can complete on their own. Simply open the system’s control panel, remove the existing battery, and replace it with a new one. If you’re using a wired system, this may require disconnecting and reconnecting both the positive and negative wires attached to the battery, and you may want to call in a professional to help. 

Home automation systems offer a wide range of automation products and services. Some of the most popular options include:

  • Cameras: $35–$350

  • Door and window sensors: $20–$100

  • Doorbells: $100–$350

  • Locks: $150–$400

  • Garage door openers: $150–$500

  • Lighting: $20–$100

  • Speakers: $30–$300

  • Outlets and plugs: $20–$100

  • Thermostats: $150–$300

  • Smoke and carbon monoxide detectors: $50–$150

  • Smart home hubs: $200–$900

  • Blinds: $50–$75

  • Appliances: $50–$3,000

  • Vacuums: $200–$1,200

  • Lawn systems: $80–$300

  • Wi-Fi and Mesh systems: $200–$500

  • Water monitoring: $100–$1,000

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

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