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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon56
    Verified home security system services reviews

Find Home security system pros in Tredyffrin

Avatar for ADT

ADT

4.53(
735
)
Approved Pro

ADT

4.53(
735
)
Approved Pro
Customers say: Terrific value
3957 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.

"Jessica Taylor from ADT delivered outstanding service. My alarm system is reliable, and the home automation means my house feels alive even when I’m away. I can even set the coffee maker to start in the morning—security and convenience in one package."

Jarett K on October 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.

"Jessica Taylor from ADT delivered outstanding service. My alarm system is reliable, and the home automation means my house feels alive even when I’m away. I can even set the coffee maker to start in the morning—security and convenience in one package."

Jarett K on October 2025


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

4.85(
296
)
Approved Pro

SafeStreets - ADT Authorized Provider

4.85(
296
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
71 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

"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


Monitex Security, Inc.

New on AngiNew on Angi
Approved Pro

Monitex Security, Inc.

New on AngiNew on Angi
Approved Pro
8 years of experience
Free onsite estimate

We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.


Avatar for Services Butler

Services Butler

5.00(
1
)
Approved Pro

Services Butler

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


Smart Home Made Easy

4.75(
6
)
Approved Pro

Smart Home Made Easy

4.75(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We pride our company on reliability, great communication, integrity and quality work. We are experts in all things home improvement and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

"These 2 guys were great. Absolutely going to use this company again!"

James K on June 2020

We pride our company on reliability, great communication, integrity and quality work. We are experts in all things home improvement and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

"These 2 guys were great. Absolutely going to use this company again!"

James K on June 2020


Avatar for Computers Xcetera

Computers Xcetera

5.00(
10
)
Approved Pro

Computers Xcetera

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

We take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. Fiber Optic Certification: TFS-103539

"This gentleman was exceptional! He came behind the Comcast technician, made sense of what we needed and came to our rescue within 15 minutes!!! I will never forget how perfect a match he was so glad he was on home advisor"

Lyn J on March 2021

We take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. Fiber Optic Certification: TFS-103539

"This gentleman was exceptional! He came behind the Comcast technician, made sense of what we needed and came to our rescue within 15 minutes!!! I will never forget how perfect a match he was so glad he was on home advisor"

Lyn J on March 2021


Avatar for SGL Distributions, LLC

SGL Distributions, LLC

New on AngiNew on Angi
Approved Pro

SGL Distributions, LLC

New on AngiNew on Angi
Approved Pro
9 years of experience
Free onsite estimate

At SGL Distributions, LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or alarm systems, we can take care of all your security needs. Ask us about our service! We look forward to working with you!

At SGL Distributions, LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or alarm systems, we can take care of all your security needs. Ask us about our service! We look forward to working with you!


Safe Protect

4.93(
30
)
Approved Pro

Safe Protect

4.93(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

With 5 years of experience in the business, I pride myself on my professionalism, as well as my ability to complete each project to the homeowner's satisfaction. I handle home security in Glenside and the surrounding areas. Call today!

"Rico was prompt and explained everything to me."

Dean E on May 2023

With 5 years of experience in the business, I pride myself on my professionalism, as well as my ability to complete each project to the homeowner's satisfaction. I handle home security in Glenside and the surrounding areas. Call today!

"Rico was prompt and explained everything to me."

Dean E on May 2023


Avatar for Penn Security Co, Inc.

Penn Security Co, Inc.

5.00(
6
)
Approved Pro

Penn Security Co, Inc.

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 years of experience

Proudly servicing commercial and residential customers in the West Chester and the surrounding areas for 25+ years. We take great pride in the quality of our work, our professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today. You will not be disappointed.

"I moved my business to a new location and needed a company to wire my new office for internet. Penn Security called me within minutes of me submitting my request to Home Advisors. Although they could not do the work for wiring my whole office that day, they did come to give me a quote and to make sure that I had at least some sort of internet access. I cannot conduct business without internet. I thought that was so incredibly thoughtful and amazing of them. They did the work 2 days later and did a wonderful job. The crew was friendly, courteous and efficient. I have had no problems with the installation they performed and I would recommend them to anyone! Truly an amazing company!"

Jillian O on July 2018

Proudly servicing commercial and residential customers in the West Chester and the surrounding areas for 25+ years. We take great pride in the quality of our work, our professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today. You will not be disappointed.

"I moved my business to a new location and needed a company to wire my new office for internet. Penn Security called me within minutes of me submitting my request to Home Advisors. Although they could not do the work for wiring my whole office that day, they did come to give me a quote and to make sure that I had at least some sort of internet access. I cannot conduct business without internet. I thought that was so incredibly thoughtful and amazing of them. They did the work 2 days later and did a wonderful job. The crew was friendly, courteous and efficient. I have had no problems with the installation they performed and I would recommend them to anyone! Truly an amazing company!"

Jillian O on July 2018


The Defender System

4.92(
17
)
Approved Pro

The Defender System

4.92(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
34 years of experience

Our company�s mission is to provide innovative security system solutions that meet our clients changing demands. The Defender System develops, markets, and supports a complete hardware, network and software solution for small to medium size corporations and business, homes, apartment buildings and condos, offices, nursing home facilities and other special requirements. The Defender System has over nineteen years� experience in quality design, assembly, testing, installation and maintenance of security system solutions. Our success in the marketplace is based on structuring our company�s resources and services to meet the specific needs of our clients. We have developed the necessary infrastructure to deliver systems and support, on time that meets our client�s budget.

"THE BEST! Been with the Defender system since 1991. Always reliable, caring and there whenever you need them."

Janet S on April 2025

Our company�s mission is to provide innovative security system solutions that meet our clients changing demands. The Defender System develops, markets, and supports a complete hardware, network and software solution for small to medium size corporations and business, homes, apartment buildings and condos, offices, nursing home facilities and other special requirements. The Defender System has over nineteen years� experience in quality design, assembly, testing, installation and maintenance of security system solutions. Our success in the marketplace is based on structuring our company�s resources and services to meet the specific needs of our clients. We have developed the necessary infrastructure to deliver systems and support, on time that meets our client�s budget.

"THE BEST! Been with the Defender system since 1991. Always reliable, caring and there whenever you need them."

Janet S on April 2025

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Home Security Systems questions, answered by experts

Your best bet is to install a bracket that secures to the bottom of the unit and the side of your house. You should still secure the AC unit in the open window using some of the other methods already listed, but a bracket is best to ensure that it stays put—both during operation and in case of an attempted theft.

Yes, many providers offer remote troubleshooting and monitoring for business networks.

In most cases, installing a driveway gate will improve the value of your home. Driveway gates appeal to homebuyers because they provide additional security for the home and make your property more private. Automatic driveway gates are extra convenient and will usually add more value than manual ones. The gate material will also affect the value addition to your home, as it plays a role in aesthetic appeal and security for your property.

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. 

Barrier doors or screen doors are ideal for bringing in summer breezes without letting in pesky flies and mosquitoes. But these types of doors aren’t as secure as a security door, which is installed with permanent screws into the home’s walls and often have deadbolts or other heavy-duty lock mechanisms for better security.

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

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