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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon53
    Verified home security system services reviews

Find Home security system pros in San Marcos

Avatar for ADT

ADT

4.53(
736
)
Approved Pro

ADT

4.53(
736
)
Approved Pro
Customers say: Terrific value
4083 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
244 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 World Fire Protection, Inc.

World Fire Protection, Inc.

5.00(
1
)
Approved Pro

World Fire Protection, Inc.

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

Welcome to World Fire Protection, Inc., We proudly provide the highest quality of service, and craftsmanship for each aspect of your project. Our depth of knowledge, and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you, and making your vision a reality. Give us a call, text or email today, and let us get started!

"They were great."

Christina V on May 2019

Welcome to World Fire Protection, Inc., We proudly provide the highest quality of service, and craftsmanship for each aspect of your project. Our depth of knowledge, and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you, and making your vision a reality. Give us a call, text or email today, and let us get started!

"They were great."

Christina V on May 2019


Alternative Fire Protection Services

5.00(
2
)
Approved Pro

Alternative Fire Protection Services

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 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.

"They sent 2 guys who treated me as a customer. How novel."

Jac C on June 2023

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.

"They sent 2 guys who treated me as a customer. How novel."

Jac C on June 2023


California Reliable Fire Services

5.00(
1
)
Approved Pro

California Reliable Fire Services

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


Avatar for Good Telecom

Good Telecom

4.63(
36
)
Approved Pro

Good Telecom

4.63(
36
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 local quotes requested

Good Telecom is a professional company that specializes in all aspects of Low Voltage work! Good Telecom has been serving Southern since 1989, with all of their low-voltage needs including Telephone systems, Computer Networking, Whole house audio, Home Theater, Commercial Video and Security camera systems.

"He was friendly, knowledgable, efficient, and solved the problem. I would definitely refer him. Great customer service!!!"

Ruth A on September 2025

Good Telecom is a professional company that specializes in all aspects of Low Voltage work! Good Telecom has been serving Southern since 1989, with all of their low-voltage needs including Telephone systems, Computer Networking, Whole house audio, Home Theater, Commercial Video and Security camera systems.

"He was friendly, knowledgable, efficient, and solved the problem. I would definitely refer him. Great customer service!!!"

Ruth A on September 2025


"I have used this company for years for my property management business. Every single time they are so professional and arrive when they say they will arrive. They are so honest and reasonable and I know we are in good hands when they go to a property. I always recommend them to my family and friends and highly recommend them to you!"

Donna E on October 2025

Offering Quality Handyman Services to get your job Done Right! Whether its a repair, new installation or something in-between you can rely on us! We do all Handyman Jobs and small construction work.

"I have used this company for years for my property management business. Every single time they are so professional and arrive when they say they will arrive. They are so honest and reasonable and I know we are in good hands when they go to a property. I always recommend them to my family and friends and highly recommend them to you!"

Donna E on October 2025


Avatar for Fire Protection Pros

Fire Protection Pros

New on AngiNew on Angi
Approved Pro

Fire Protection Pros

New on AngiNew on Angi
Approved Pro
2 years of experience
Emergency services offered

At Fire Protection Pros, we are the trusted experts for fire sprinkler system installations, repairs, and inspections in Riverside, CA and its surrounding areas. We pride ourselves on our extensive knowledge and experience in keeping residential and commercial properties safe from fires through top-quality fire protection solutions.

At Fire Protection Pros, we are the trusted experts for fire sprinkler system installations, repairs, and inspections in Riverside, CA and its surrounding areas. We pride ourselves on our extensive knowledge and experience in keeping residential and commercial properties safe from fires through top-quality fire protection solutions.


Avatar for I'll Handle IT

I'll Handle IT

4.93(
236
)
Approved Pro

I'll Handle IT

4.93(
236
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
400 local quotes requested

I started "I'll Handle It" to address what I recognized as a need that homeowners have for competent, knowledgeable and courteous home improvement service professionals to help them with all manner of projects large and small. Founded in San Diego, "I'll Handle It" is a home grown business that prides itself in its responsiveness to its customers needs. At "I'll Handle It" "Professional Service You Can Rely on" is our mantra, and we can prove it.

"Dave was great! The best communication and transparency I've seen in a long time. Dave explained what he needed to do to install the dryer vent and got right to work...NO wasted time. He installed the vent and made sure it was working properly. The vent looks great! Dave is knowledgable, professional, and a nice person. He also stayed in touch, letting me know how soon he would arrive and when he was on his way. I really appreciated that. We will definitely call him the next time we need a handyman."

Cheryl E on September 2025

I started "I'll Handle It" to address what I recognized as a need that homeowners have for competent, knowledgeable and courteous home improvement service professionals to help them with all manner of projects large and small. Founded in San Diego, "I'll Handle It" is a home grown business that prides itself in its responsiveness to its customers needs. At "I'll Handle It" "Professional Service You Can Rely on" is our mantra, and we can prove it.

"Dave was great! The best communication and transparency I've seen in a long time. Dave explained what he needed to do to install the dryer vent and got right to work...NO wasted time. He installed the vent and made sure it was working properly. The vent looks great! Dave is knowledgable, professional, and a nice person. He also stayed in touch, letting me know how soon he would arrive and when he was on his way. I really appreciated that. We will definitely call him the next time we need a handyman."

Cheryl E on September 2025


"Cory did a very nice job for us. He took a look at our ethernet and WiFi network, and was able to diagnose our problems and make a couple of improvements. He was on-time, professional and easy to talk with. He was also very skilled in the technical aspects of modern networking. We often find that good local businesses like Wave Connects deliver solutions and services that are as good or better than the big companies. Cory and Wave Connects have proven this yet again. We will continue to call on Wave Connects for any other issues that we run into, and we will happily recommend them to friends and family."

Dave T on February 2025

As a whole-home solutions provider, integration beyond audio, video, and communications is packaged with superior technical service and excellent customer service, seven days a week.

"Cory did a very nice job for us. He took a look at our ethernet and WiFi network, and was able to diagnose our problems and make a couple of improvements. He was on-time, professional and easy to talk with. He was also very skilled in the technical aspects of modern networking. We often find that good local businesses like Wave Connects deliver solutions and services that are as good or better than the big companies. Cory and Wave Connects have proven this yet again. We will continue to call on Wave Connects for any other issues that we run into, and we will happily recommend them to friends and family."

Dave T on February 2025

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Home Security Systems questions, answered by experts

Yes, you can install a home security system in an old house. In fact, you can install a security system in any home. Some wiring may need to be added, but most home security systems do not require a lot of additional wiring. Wireless security systems can easily be installed with minimal additional wiring, if any at all. Most wireless security systems can be monitored and controlled from your smartphone, and the cameras and sensors operate on batteries.

A security camera company will be able to advise you on where to position the cameras, ensure all of the equipment is set up properly, and do all of the installations. They’ll take factors into consideration that a non-professional might not automatically consider, like obstacles that could block a potential trespasser from the camera or how lighting may obstruct the view.

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. 

While a strong conventional deadbolt offers enough security for most homeowners, if you’re looking for extra features beyond just simple locking, smart deadbolts are the way to go. Smart deadbolts allow for keyless entry using your phone or a code, remote access in case someone is locked out, and features like temporary access codes, automatic locking, tamper alerts and entry-exit monitoring. Smart deadbolts also come with downsides: they rely on batteries and wireless networks and are potentially vulnerable to hacking by skilled home intruders.

Regular testing, keeping sensors clean, and updating software help ensure optimal performance.

The San Marcos, CA homeowners’ guide to home security system services

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