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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon87
    Verified home security system services reviews

Find Home security system pros in Altadena

Avatar for ADT

ADT

3750 Priority Way South Dr
4.53(
734
)
Approved Pro

ADT

3750 Priority Way South Dr
4.53(
734
)
Approved Pro
Customers say: Terrific value
3669 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.

"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."

Luke W 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.

"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."

Luke W on October 2025


Avatar for B.K. Electric Services

B.K. Electric Services

14320 Ventura Blvd
4.34(
122
)
Approved Pro

B.K. Electric Services

14320 Ventura Blvd
4.34(
122
)
Approved Pro
Customers say: Quality work
665 local quotes requested
21 years of experience

Welcome to B.K. Electric Services Inc, Licensed Los Angeles Electricians. Honest,reliable, professional electricians, where superb customer service, competitive prices and most importantly friendly services is our #1 Priority! We provide Residential, Commercial and Industrial electrical services all over the Los Angeles, Orange County and San Fernando Valley areas. Our company has become a household name around the Los Angeles area. We have built many relationships with our residential customers, celebrities, public figures, small retailers and large department stores. We work closely with DWP, Edison and the Department of Building and safety to ensure that your work is being done up to the city codes. From the estimate to pulling the permits we will handle everything for your electrical project from A-Z. We offer absolutely free estimates always! Additional phone number - (310) 430-2300. Additional DBAs - B K Electric Services, B K Electric Services Inc, BK Electric Service, BK Electric Services. Family owned & operated

"Took a long time and they weren't able to do the other job and will need to contact again"

Sharyn C on October 2025

Welcome to B.K. Electric Services Inc, Licensed Los Angeles Electricians. Honest,reliable, professional electricians, where superb customer service, competitive prices and most importantly friendly services is our #1 Priority! We provide Residential, Commercial and Industrial electrical services all over the Los Angeles, Orange County and San Fernando Valley areas. Our company has become a household name around the Los Angeles area. We have built many relationships with our residential customers, celebrities, public figures, small retailers and large department stores. We work closely with DWP, Edison and the Department of Building and safety to ensure that your work is being done up to the city codes. From the estimate to pulling the permits we will handle everything for your electrical project from A-Z. We offer absolutely free estimates always! Additional phone number - (310) 430-2300. Additional DBAs - B K Electric Services, B K Electric Services Inc, BK Electric Service, BK Electric Services. Family owned & operated

"Took a long time and they weren't able to do the other job and will need to contact again"

Sharyn C on October 2025


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
291
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
291
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
63 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 regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."

Jessica S on October 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 regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."

Jessica S on October 2025


Avatar for Guardian Fire Protection

Guardian Fire Protection

14625 Rayen St #108
5.00(
2
)
Approved Pro

Guardian Fire Protection

14625 Rayen St #108
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Guardian Fire Protection Inc, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"Perfect timing ~"

Lauren L on May 2023

Guardian Fire Protection Inc, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"Perfect timing ~"

Lauren L on May 2023


Avatar for BORIS BETOEI FIRE PROTECTION

BORIS BETOEI FIRE PROTECTION

1016 WINCHESTER AVE #19
5.00(
5
)
Approved Pro

BORIS BETOEI FIRE PROTECTION

1016 WINCHESTER AVE #19
5.00(
5
)
Approved Pro
Customers say: Quick response
17 local quotes requested
15 years of experience

Boris Betoei Fire Protection is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Work done quickly and at reasonable price."

Ryna A on July 2025

Boris Betoei Fire Protection is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Work done quickly and at reasonable price."

Ryna A on July 2025


Avatar for Dru.id Security, LLC

Dru.id Security, LLC

201 North Brand Boulevard, #256
5.00(
4
)
Approved Pro

Dru.id Security, LLC

201 North Brand Boulevard, #256
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

With years of experience in the security industry, we are the experts you need to take care of your business. We handle all of your surveillance and security needs with great care. We will treat your business as we would treat our own. Give Dru.id Security a call today, we look forward to working with you!

"Andrew and his team worked very efficiently and cleaned up their mess as if they were never here. They arrived on time to each meeting and was willing to work with my company in finding a system that met our budget. Would definitely recommend them to anyone looking for a good security system! They do it all, the research finding the right system to meet your budget, taking down old systems, installing and tech support! Simply amazing!"

Amy X on February 2023

With years of experience in the security industry, we are the experts you need to take care of your business. We handle all of your surveillance and security needs with great care. We will treat your business as we would treat our own. Give Dru.id Security a call today, we look forward to working with you!

"Andrew and his team worked very efficiently and cleaned up their mess as if they were never here. They arrived on time to each meeting and was willing to work with my company in finding a system that met our budget. Would definitely recommend them to anyone looking for a good security system! They do it all, the research finding the right system to meet your budget, taking down old systems, installing and tech support! Simply amazing!"

Amy X on February 2023


A.H.S. Protection

522 W Stocker St., Unit 1
5.00(
1
)
Approved Pro

A.H.S. Protection

522 W Stocker St., Unit 1
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Really fast response, always in touch by email or phone, really flexible on time and dates, highly recommended."

Madi on October 2021

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Really fast response, always in touch by email or phone, really flexible on time and dates, highly recommended."

Madi on October 2021


Avatar for Legion Fire Protection

Legion Fire Protection

2101 W. Crescent Ave. Suite M
5.00(
2
)
Approved Pro

Legion Fire Protection

2101 W. Crescent Ave. Suite M
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Legion Fire Protection is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"Great customer service, works really fast."

Michale M on December 2021

Legion Fire Protection is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. 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.

"Great customer service, works really fast."

Michale M on December 2021


Avatar for Resource One Low Voltage Security, Inc.

Resource One Low Voltage Security, Inc.

8464 Ditmar Drive
4.95(
21
)
Approved Pro

Resource One Low Voltage Security, Inc.

8464 Ditmar Drive
4.95(
21
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
9 years of experience

We specialize in Low Voltage Surveillance Security Cameras. We are committed to the highest quality work, and promise expert professionalism, and respect. We have over 17 years of industry experience can do just about anything to do with Low Voltage work. We pride ourselves in promptness, and efficiency. Call now to book an appointment with one of our well trained installers today! Satisfaction Guaranteed!

"On time service. Delivered what he promised and went out his way to keep me happy. He is the best and I highly recommend him to anyone."

Harry K on September 2020

We specialize in Low Voltage Surveillance Security Cameras. We are committed to the highest quality work, and promise expert professionalism, and respect. We have over 17 years of industry experience can do just about anything to do with Low Voltage work. We pride ourselves in promptness, and efficiency. Call now to book an appointment with one of our well trained installers today! Satisfaction Guaranteed!

"On time service. Delivered what he promised and went out his way to keep me happy. He is the best and I highly recommend him to anyone."

Harry K on September 2020


California Reliable Fire Services

7725 Gateway Blvd Suite 4515
5.00(
1
)
Approved Pro

California Reliable Fire Services

7725 Gateway Blvd Suite 4515
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

California Reliable Fire Services specializes in fire protection and prevention. We assure the safety of you and your family. Your satisfaction is our priority. Give us a call today for a free estimate. We look forward to working with you!

"They are reliable and professional."

Sarah S on October 2015

California Reliable Fire Services specializes in fire protection and prevention. We assure the safety of you and your family. Your satisfaction is our priority. Give us a call today for a free estimate. We look forward to working with you!

"They are reliable and professional."

Sarah S on October 2015

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Home Security Systems questions, answered by experts

A potential weak link in any security system is poor connection strength or dropped signals, particularly in the case of a fully wireless system. You also want to ensure a reliable connection to get a hold of your service provider quickly. Also, you should exercise caution when handing out sign-in credentials to people outside the household.

Home automation costs an average of $1,000, and most projects fall between $200 and $2,000. The total cost will depend largely on the level of automation you want in your home. High-tech, all-inclusive systems can cost well over $10,000 for larger homes, so most homeowners set a budget and then provide that to an expert to get the best results. You can also opt for DIY home automation technology for between $100 and $500, but the scope and interaction between products are usually limited.

Standard residential deadbolt locks come with a steel bolt that locks your door into place using a key (or keypad) on one side and a thumb turn on the other. When you lock it, the bolt slides into a strike plate on your door jamb to secure your door shut.

Leaving a light on at night probably does not deter burglars as much as we would like. While there isn’t much evidence supporting the theory that lights deter burglars, there’s not anything disproving it either. If you feel like it offers added security because a burglar thinks you’re at home, then you can set your lights to a timer so they go off and on at intervals, mimicking someone moving around inside the house at night. A better idea is to install motion sensor lights in your yard.

Yes, driveway gates can help secure your home by deterring burglars from accessing your property. Climbing a gate slows down burglars while also attracting attention to your gate. If you live further down your property and want to increase security, you can also install a gate security camera that connects to your gate and monitors the area for suspicious activity.

The Altadena, CA homeowners’ guide to home security system services

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