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Find Home security system pros in Thornton

Avatar for ADT

ADT

4.53(
736
)
Approved Pro

ADT

4.53(
736
)
Approved Pro
Customers say: Terrific value
4024 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.

"Went well. Will know more later"

Pre P on November 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.

"Went well. Will know more later"

Pre P on November 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
79 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


Avatar for Secure It Controls

Secure It Controls

5.00(
1
)
Approved Pro

Secure It Controls

5.00(
1
)
Approved Pro
10 years of experience
Free onsite estimate

Secure It Controls is Northern Colorado’s trusted provider of professional security solutions for residential and commercial properties. We specialize in access control systems, camera surveillance, burglar alarms, and intercom systems, delivering tailored solutions to meet your unique needs. Our experienced team focuses on quality, reliability, and innovation, ensuring every installation is seamless and effective. From managing access to safeguarding your property, we use the latest technology to provide peace of mind. Trust Secure It Controls to protect what matters most. Contact us today to learn more!

Secure It Controls is Northern Colorado’s trusted provider of professional security solutions for residential and commercial properties. We specialize in access control systems, camera surveillance, burglar alarms, and intercom systems, delivering tailored solutions to meet your unique needs. Our experienced team focuses on quality, reliability, and innovation, ensuring every installation is seamless and effective. From managing access to safeguarding your property, we use the latest technology to provide peace of mind. Trust Secure It Controls to protect what matters most. Contact us today to learn more!


Avatar for FlatironsAV LLC

FlatironsAV LLC

5.00(
8
)
Approved Pro

FlatironsAV LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

Flatirons AV specializes in providing comprehensive low voltage services, including rough-in wiring, meticulous finishing, and thorough setup and support for premium low voltage systems. Our commitment extends beyond mere service; we prioritize a personal, communicative, and service-oriented approach tailored specifically to builders and their clients. We also excel in customizing solutions to perfectly match the unique requirements of each family. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. www.flatironsav.com Paypal, Venmo, Zelle, Cash, Check Accepted for Payment

"Knowledgeable Honest Resourceful Professional and Prompt"

Sally H on December 2024

Flatirons AV specializes in providing comprehensive low voltage services, including rough-in wiring, meticulous finishing, and thorough setup and support for premium low voltage systems. Our commitment extends beyond mere service; we prioritize a personal, communicative, and service-oriented approach tailored specifically to builders and their clients. We also excel in customizing solutions to perfectly match the unique requirements of each family. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. www.flatironsav.com Paypal, Venmo, Zelle, Cash, Check Accepted for Payment

"Knowledgeable Honest Resourceful Professional and Prompt"

Sally H on December 2024


Avatar for Fitch Services, LLC

Fitch Services, LLC

4.92(
6
)
Approved Pro

Fitch Services, LLC

4.92(
6
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

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

"Brent and his team repair a sliding door and sliding screen door which were not operating correctly including some wooden trim on the sliding door. They also caulked all doors and windows at our house. They were not weatherized by the builder. The work looked great and the doors now slide with ease."

Michael P on April 2025

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

"Brent and his team repair a sliding door and sliding screen door which were not operating correctly including some wooden trim on the sliding door. They also caulked all doors and windows at our house. They were not weatherized by the builder. The work looked great and the doors now slide with ease."

Michael P on April 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 Mr. Handyman of Englewood, Centennial and South Aurora

Mr. Handyman of Englewood, Centennial and South Aurora

4.68(
14
)
Approved Pro

Mr. Handyman of Englewood, Centennial and South Aurora

4.68(
14
)
Approved Pro
Customers say: Quick response
203 local quotes requested
3 years of experience

When you hire our handyman company for your home's next project, you're doing exactly that: hiring a whole team. We're more than just one handyman. Our handyman service company is composed of trusted, screened, and qualified home service professionals with an average of 10 years of experience completing home-related projects. We approach things as a team for a more efficient customer experience! When you need home repairs or other home improvement projects completed in Englewood, turn to Mr. Handyman of Englewood, Centennial and S Aurora for help!

"A picture says a thousand words."

Barbara J on September 2025

When you hire our handyman company for your home's next project, you're doing exactly that: hiring a whole team. We're more than just one handyman. Our handyman service company is composed of trusted, screened, and qualified home service professionals with an average of 10 years of experience completing home-related projects. We approach things as a team for a more efficient customer experience! When you need home repairs or other home improvement projects completed in Englewood, turn to Mr. Handyman of Englewood, Centennial and S Aurora for help!

"A picture says a thousand words."

Barbara J on September 2025


Avatar for Terra Tech Solutions, LLC

Terra Tech Solutions, LLC

4.95(
28
)
Approved Pro

Terra Tech Solutions, LLC

4.95(
28
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
3 years of experience

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

"Isaiah was entirely courteous and professional! Have him down to do more work in the future."

Vanessa D on October 2025

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

"Isaiah was entirely courteous and professional! Have him down to do more work in the future."

Vanessa D on October 2025


Avatar for The Boulder Home Theater Company

The Boulder Home Theater Company

4.82(
11
)
Approved Pro

The Boulder Home Theater Company

4.82(
11
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
21 years of experience

The Boulder Home Theater Company is a full service design, sales, and installation company. We have over a decade of experience in the custom audio-video field. We have completed many custom home theater installations for professional athletes, high-profile businesses, and discerning clientele. We provide flat screen TV mounting, dedicated home theater rooms, whole house audio, lighting control, automated shades, and service jobs in between...From the basic to the more intricate. Proudly serving Boulder County area

"Great"

Bob S on October 2021

The Boulder Home Theater Company is a full service design, sales, and installation company. We have over a decade of experience in the custom audio-video field. We have completed many custom home theater installations for professional athletes, high-profile businesses, and discerning clientele. We provide flat screen TV mounting, dedicated home theater rooms, whole house audio, lighting control, automated shades, and service jobs in between...From the basic to the more intricate. Proudly serving Boulder County area

"Great"

Bob S on October 2021


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

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Home Security Systems questions, answered by experts

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. 

There are a number of ways to secure windows. You can add motion detectors or window sensors to detect movement and impact or change the window locks to make them stronger. Some of the ways you can secure windows are much like how you secure a home: closing the curtains at night and setting up security cameras outside so you can monitor your property even in your absence. 

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. 

Various types of deadbolts are available, from the classic single-cylinder lock to a double-cylinder, rim deadbolt, smart deadbolt, and electronic deadbolt lock. Most homes in the U.S. use a single-cylinder deadbolt lock, which requires a key on the exterior and only a thumb turn on the interior to open or close the lock. 

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

The Thornton, CO homeowners’ guide to home security system services

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