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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon16
    Verified home security system services reviews

Find Home security system pros in Mercersburg

Avatar for ADT

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro
Customers say: Terrific value
3694 local quotes requested
151 years of experience

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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 2025


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
89 local quotes requested

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

"I’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 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

"I’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 2025


Avatar for Services Butler

Services Butler

68 Beacon St
5.00(
1
)
Approved Pro

Services Butler

68 Beacon St
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We specialize in residential and Monitored Security & Automation. Options include: Remote Monitoring | Indoor & Outdoor Cameras | Camera Doorbells | Smart Locks. Our system is custom built to deter real threats our home security systems doesn't just record crime, they help prevent it. With outdoor security cameras that detect lurkers and scare them away, a doorbell camera that detects and protects packages, and smart locks, lighting, and security sensors—your home is always protected.

"Extremely efficient and professional!"

Mark K on June 2021

We specialize in residential and Monitored Security & Automation. Options include: Remote Monitoring | Indoor & Outdoor Cameras | Camera Doorbells | Smart Locks. Our system is custom built to deter real threats our home security systems doesn't just record crime, they help prevent it. With outdoor security cameras that detect lurkers and scare them away, a doorbell camera that detects and protects packages, and smart locks, lighting, and security sensors—your home is always protected.

"Extremely efficient and professional!"

Mark K on June 2021


Avatar for All About Media

All About Media

205 York Road
4.69(
13
)
Approved Pro

All About Media

205 York Road
4.69(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

All About Media has been doing business since 2007. We take pride in customer service and look forward to working with you. Call today for a free estimate.

"No comments."

James B on June 2019

All About Media has been doing business since 2007. We take pride in customer service and look forward to working with you. Call today for a free estimate.

"No comments."

James B on June 2019


Avatar for Martin Networking & Security LLC

Martin Networking & Security LLC

409 Century Drive
5.00(
1
)
Approved Pro

Martin Networking & Security LLC

409 Century Drive
5.00(
1
)
Approved Pro
14 local quotes requested
1 years of experience

MARTIN Networking and Security is dedicated to delivering top-tier infrastructure cabling, security systems, and networking/wireless solutions tailored to meet the unique needs of businesses and residential clients alike. With a focus on quality, reliability, and customer satisfaction, we pride ourselves on providing services that not only meet but exceed expectations. Our mission is to empower our clients with the technology and security they need to thrive in today’s fast-paced world. We strive to deliver innovative solutions that are both efficient and scalable, ensuring our clients are always one step ahead in their network and security infrastructure.

"We hired Martin Networking to install surveillance in our retail space. Jesse was professional and knowledgeable the entire way through the process. Prompt to our consultation, experienced with offering recommendations on placement of cameras and different styles available to give us the coverage we needed. The install was handled flawlessly. He was respectful of our space and kept all wiring concealed for a clean finish. After the install was complete, he made sure to follow up with a thorough explanation of the features of the cameras we selected and made sure we were comfortable accessing the app and adjusting settings to fit our needs. An additional trip was made for a minor adjustment on the angle of one camera and we have been very pleased with the performance of what was installed. So satisfied with service and product, we are having cameras installed at our home next. "

Lauren B on July 2025

MARTIN Networking and Security is dedicated to delivering top-tier infrastructure cabling, security systems, and networking/wireless solutions tailored to meet the unique needs of businesses and residential clients alike. With a focus on quality, reliability, and customer satisfaction, we pride ourselves on providing services that not only meet but exceed expectations. Our mission is to empower our clients with the technology and security they need to thrive in today’s fast-paced world. We strive to deliver innovative solutions that are both efficient and scalable, ensuring our clients are always one step ahead in their network and security infrastructure.

"We hired Martin Networking to install surveillance in our retail space. Jesse was professional and knowledgeable the entire way through the process. Prompt to our consultation, experienced with offering recommendations on placement of cameras and different styles available to give us the coverage we needed. The install was handled flawlessly. He was respectful of our space and kept all wiring concealed for a clean finish. After the install was complete, he made sure to follow up with a thorough explanation of the features of the cameras we selected and made sure we were comfortable accessing the app and adjusting settings to fit our needs. An additional trip was made for a minor adjustment on the angle of one camera and we have been very pleased with the performance of what was installed. So satisfied with service and product, we are having cameras installed at our home next. "

Lauren B on July 2025



Tactical Telecommunications Services

1 East Oak Ridge Drive
No reviews yet

Tactical Telecommunications Services

1 East Oak Ridge Drive
No reviews yet
4 years of experience

We Specialize in the following Services and strive for the fastest Turn Around Time! Services Offered from TTS: 1. DAS - Distributed Antenna System - If your Business or Home struggles with Wireless connectivity, we can provide a solution for that! 2. Public Safety DAS: We can provide Turnkey Design and Installation Services for all of your Public Safety needs. 3. Sweep Testing, PIM Testing, DAS Remediation 4. Fiber Optics - We can provide Turnkey Fiber Optic Solutions to fit your needs. We also offer Installation, Termination, Testing, and Troubleshooting for all Fiber. 5. Low Voltage Cabling - We provide services to Install, Terminate, and Test category Cabling (CAT6 / CAT6A) 6. Camera Installation - We can provide Turnkey solutions for all of your Cameras needs! 7. TV Installation - Mounting, Removal, and relocating. 8. Telecommunications Closet Relocations 9. Carrier Specific DAS installations - No matter your carrier, we can provide a signal solution for you! (AT&T / Verizon / T-Mobile)

We Specialize in the following Services and strive for the fastest Turn Around Time! Services Offered from TTS: 1. DAS - Distributed Antenna System - If your Business or Home struggles with Wireless connectivity, we can provide a solution for that! 2. Public Safety DAS: We can provide Turnkey Design and Installation Services for all of your Public Safety needs. 3. Sweep Testing, PIM Testing, DAS Remediation 4. Fiber Optics - We can provide Turnkey Fiber Optic Solutions to fit your needs. We also offer Installation, Termination, Testing, and Troubleshooting for all Fiber. 5. Low Voltage Cabling - We provide services to Install, Terminate, and Test category Cabling (CAT6 / CAT6A) 6. Camera Installation - We can provide Turnkey solutions for all of your Cameras needs! 7. TV Installation - Mounting, Removal, and relocating. 8. Telecommunications Closet Relocations 9. Carrier Specific DAS installations - No matter your carrier, we can provide a signal solution for you! (AT&T / Verizon / T-Mobile)



Bressler GeekTech

9861 Browns Mill Rd
No reviews yet

Bressler GeekTech

9861 Browns Mill Rd
No reviews yet
13 years of experience

At Bressler GeekTech, we offer top-grade installation and service of burglary and fire alarm, access control and camera systems to keep your home or business safe and secure. Most of our systems feature smart technology, designed to give you access and control over the security of your property, allowing you to monitor possible break-ins or life-safety issues wherever you are. Bressler GeekTech is a family-owned business operating in the PA, MD and WV area with more than 15 years in the alarm and smart home industry. We pride ourselves on designing systems that work with you, not against you. Our goal is to bridge the gap between cutting edge technology and our customers' every day lives as efficiently and effectively as possible.

At Bressler GeekTech, we offer top-grade installation and service of burglary and fire alarm, access control and camera systems to keep your home or business safe and secure. Most of our systems feature smart technology, designed to give you access and control over the security of your property, allowing you to monitor possible break-ins or life-safety issues wherever you are. Bressler GeekTech is a family-owned business operating in the PA, MD and WV area with more than 15 years in the alarm and smart home industry. We pride ourselves on designing systems that work with you, not against you. Our goal is to bridge the gap between cutting edge technology and our customers' every day lives as efficiently and effectively as possible.


ADT First Choice Home Security

5302 East Dr
No reviews yet

ADT First Choice Home Security

5302 East Dr
No reviews yet
19 years of experience

Hi, my name is Zeeshan and I have been in the ADT alarm business for over 14 years. I always provide my clients the very best installation at a reasonable price. We guarantee beating any ADT flyer and deal that you may have received. We have alarm installers with several years of experience that are dedicated in securing your home or business with America's #1 Alarm provider monitoring.

Hi, my name is Zeeshan and I have been in the ADT alarm business for over 14 years. I always provide my clients the very best installation at a reasonable price. We guarantee beating any ADT flyer and deal that you may have received. We have alarm installers with several years of experience that are dedicated in securing your home or business with America's #1 Alarm provider monitoring.

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Home Security Systems questions, answered by experts

Yes, most pros encourage you to change your locks when you move into a new home. While the previous owner may hand you their keys, you have no way of knowing whether other copies exist elsewhere. Changing your locks as soon as you move in is a great way to ensure that you can enjoy new, fully functioning locks that will work with your unique key or code.

A study from the University of North Carolina found that security system signs were one of the top ten deterrents for burglars when choosing a target, so they do have some effect. However, you can get into legal trouble for putting up fake signage, so it’s best only to put up signs when you have the alarms to back them up.

In general, daytime visibility for security cameras ranges from 10 to 70 feet. Higher-end cameras may have night vision that records 100 to 200 feet out. When shopping for any type of security camera, it's important to pay attention to focal length, resolution, and infrared technology to get an idea of the depth and crispness that will be used when capturing images.

While many security cameras are internet-connected, not all require a constant connection. Some wireless options operate independently of the internet, providing essential security functions even offline. They typically have features like local storage capabilities, like microSD cards or network-attached storage (NAS), which can still record footage even when Wi-Fi is unavailable. The camera-stored data can be accessed later once the Wi-Fi connection is restored.

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.

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The Mercersburg, PA homeowners’ guide to home security system services

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