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    Average homeowner rating
  • Verified reviews icon69
    Verified home security system services reviews

Find Home security system pros in San Marino

Avatar for ADT

ADT

3750 Priority Way South Dr
4.53(
735
)
Approved Pro

ADT

3750 Priority Way South Dr
4.53(
735
)
Approved Pro
Customers say: Terrific value
3755 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 Harmony Electrical, Plumbing and Air

Harmony Electrical, Plumbing and Air

11121 First Ave
5.00(
13
)
Approved Pro

Harmony Electrical, Plumbing and Air

11121 First Ave
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1472 local quotes requested

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"Very good company, great service and always on top of everything would highly recommend to anyone!!"

Lauren D on October 2025

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"Very good company, great service and always on top of everything would highly recommend to anyone!!"

Lauren D on October 2025


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
293
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
293
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
61 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

"Biggest thing we love about this alarm package is that there are flexible options and complex options available. We are simple people so we don’t need anything fancy but its nice knowing we can upgrade if our needs ever change. They’ve been terrific to work with and get this job done for us."

Camille C 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

"Biggest thing we love about this alarm package is that there are flexible options and complex options available. We are simple people so we don’t need anything fancy but its nice knowing we can upgrade if our needs ever change. They’ve been terrific to work with and get this job done for us."

Camille C on October 2025


Avatar for Smart Electrical Solutions Inc

Smart Electrical Solutions Inc

5.00(
7
)
Approved Pro

Smart Electrical Solutions Inc

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
54 local quotes requested

With 25 years of experience, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I was very happy with their quality work. Installed new upgraded electrical panel, patched and painted wall, new wiring under sink, patched under sink, replaced two leaking sink faucet hoses, 2 new outlets, and repaired and painted ancient back door and sill. Excellent work."

Kerry B on February 2025

With 25 years of experience, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I was very happy with their quality work. Installed new upgraded electrical panel, patched and painted wall, new wiring under sink, patched under sink, replaced two leaking sink faucet hoses, 2 new outlets, and repaired and painted ancient back door and sill. Excellent work."

Kerry B on February 2025


"I highly recommend this business. He resolved my issue with great efficiently. He was very knowledgeable and personable. He listened to my concerns and offered comprehensive resolutions. I couldn't have chosen a better business. He was the perfect choice. I'm very satisfied and highly recommend this business."

Terry M on September 2025

Any residential, commercial, repairs or add-ons, Fair prices, dead-line always a must, owner-operated 20 years experience

"I highly recommend this business. He resolved my issue with great efficiently. He was very knowledgeable and personable. He listened to my concerns and offered comprehensive resolutions. I couldn't have chosen a better business. He was the perfect choice. I'm very satisfied and highly recommend this business."

Terry M on September 2025


Avatar for Fire Protection Pros

Fire Protection Pros

438 E Katella Ave #204
New on AngiNew on Angi
Approved Pro

Fire Protection Pros

438 E Katella Ave #204
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 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
19 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


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


Alternative Fire Protection Services

9 Alcott Street
5.00(
2
)
Approved Pro

Alternative Fire Protection Services

9 Alcott Street
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

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Home Security Systems questions, answered by experts

Security cameras do not need wiring if they are wireless, meaning they are battery-operated and can connect through Wi-Fi. You’ll need to change the batteries on a wireless camera and ensure you have a steady connection to Wi-Fi for video storage. If you have a wired security camera, you’ll need to plug it into an outlet or other power source and a DVR device.

This is the topic of much debate, though there is no “better,” as it depends on personal preferences. Some of the components of a wireless system keep working when the power goes out, as they are battery-powered. On the other hand, a wireless system typically connects to your modem and router. Wired systems use landlines to communicate, which never go out on their own unless they’re physically cut.

Yes, many providers offer reinforced steel, fire-rated, and electronic access doors for businesses.

Expect to spend an average of $150 to $500 to set up a home flood detection system. However, be aware that costs are wide-ranging. You might only spend a budget-friendly $50 to place basic, battery-operated sensors in a few key areas of your home, or $150 to set up two or three smart sensors. The purchase and professional installation of a whole-home protection system with water shutoff capabilities could cost between $500 and $1,000.

Hiring a professional ensures optimal camera placement, secure installation, and integration with existing security systems. Professionals ensure reliable operation and can offer system customization to suit specific security needs or preferences.

The San Marino, 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.

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