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    Verified home security system services reviews

Find Home security system pros in Portola Valley

Avatar for ADT

ADT

4.66(
684
)
Approved Pro

ADT

4.66(
684
)
Approved Pro
Super Service Award
Customers say: Terrific value
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
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.

"A wonderful gentleman named Jake sold us our alarm system. Jake ended up installing the equipment as well. We enjoyed working with him and the alarm works well. We hope ADT recognizes him for his outstanding work and customer service. We really appreciate it."

Jackie J on December 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.

"A wonderful gentleman named Jake sold us our alarm system. Jake ended up installing the equipment as well. We enjoyed working with him and the alarm works well. We hope ADT recognizes him for his outstanding work and customer service. We really appreciate it."

Jackie J on December 2025


Avatar for California Low Voltage

California Low Voltage

New on AngiNew on Angi
Approved Pro

California Low Voltage

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

CALIFORNIA LOW VOLTAGE LLC is a locally owned business that specializes in all types of low voltage projects. We love what we do and hold a Master degree in electrical engineering and count on more than 10 years of experience. We are available mon - Fri 9-5 and look forward to working with you on your upcoming projects so call us now for a free estimate at 669-629-1699 Discover the exceptional features that define our service offerings as a leading low voltage solutions provider. With a keen focus on innovation and customer-centric solutions, we pride ourselves on delivering unparalleled results tailored to meet the diverse needs of our clients.

CALIFORNIA LOW VOLTAGE LLC is a locally owned business that specializes in all types of low voltage projects. We love what we do and hold a Master degree in electrical engineering and count on more than 10 years of experience. We are available mon - Fri 9-5 and look forward to working with you on your upcoming projects so call us now for a free estimate at 669-629-1699 Discover the exceptional features that define our service offerings as a leading low voltage solutions provider. With a keen focus on innovation and customer-centric solutions, we pride ourselves on delivering unparalleled results tailored to meet the diverse needs of our clients.


Avatar for Control Fire, Inc.

Control Fire, Inc.

3.50(
6
)
Approved Pro

Control Fire, Inc.

3.50(
6
)
Approved Pro
9 years of experience
Free onsite estimate

Control Fire specializes in the design and installation of residential fire protection systems. We handle everything from detached garages, ADUs, single family homes, large multi-family projects, Hotels, etc. We provide a full range of services including design, consulting, installation, repair and testing We'd sure appreciate a chance to serve your fire protection needs.

"I've worked with Jason in the past and as always he did a great job with the installation of our fire sprinkler system for a new construction build in Redwood City. I highly recommended Control Fire's services and I wouldn't hesitate to hire them again."

Omar G on September 2022

Control Fire specializes in the design and installation of residential fire protection systems. We handle everything from detached garages, ADUs, single family homes, large multi-family projects, Hotels, etc. We provide a full range of services including design, consulting, installation, repair and testing We'd sure appreciate a chance to serve your fire protection needs.

"I've worked with Jason in the past and as always he did a great job with the installation of our fire sprinkler system for a new construction build in Redwood City. I highly recommended Control Fire's services and I wouldn't hesitate to hire them again."

Omar G on September 2022


Spaghetti Networks, Inc.

New on AngiNew on Angi
Approved Pro

Spaghetti Networks, Inc.

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

Spaghetti Networks INC 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!

Spaghetti Networks INC 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!


Avatar for Sherlock Surveillance

Sherlock Surveillance

5.00(
4
)
Approved Pro

Sherlock Surveillance

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

If you are looking to monitor your property or your business, we will do it professionally at an affordable price. Sherlock Surveillance is the premier installer for Costco in Northern California. We have done more than 70 installations everywhere from Sacramento, to Las Vegas to an Eco Resort on a remote Beach in Mexico. We combine an expertise in Computer Networking with extreme attention to detail so that the cameras, DVR�s and Cabling look good and perform every time. When there is an incident you will have it recorded. You will be able to view your property in Real time from your iphone or your computer anywhere you can get internet access. We have configured systems connected via Satellite, 10 Story buildings and Restaurants and businesses all over Northern California. Check out the testimonials from some of our customers. Call us for a Free no obligation Estimate

"Ilan from Sherlock Surveillance was knowledgeable and experienced. He was able to diagnose, install needed equipment, and help us straighten out our cameras and app problems. Our system works beautifully now. We even decided to purchase two more camera from them and asked them to install. I would highly recommend them."

Carol S on March 2023

If you are looking to monitor your property or your business, we will do it professionally at an affordable price. Sherlock Surveillance is the premier installer for Costco in Northern California. We have done more than 70 installations everywhere from Sacramento, to Las Vegas to an Eco Resort on a remote Beach in Mexico. We combine an expertise in Computer Networking with extreme attention to detail so that the cameras, DVR�s and Cabling look good and perform every time. When there is an incident you will have it recorded. You will be able to view your property in Real time from your iphone or your computer anywhere you can get internet access. We have configured systems connected via Satellite, 10 Story buildings and Restaurants and businesses all over Northern California. Check out the testimonials from some of our customers. Call us for a Free no obligation Estimate

"Ilan from Sherlock Surveillance was knowledgeable and experienced. He was able to diagnose, install needed equipment, and help us straighten out our cameras and app problems. Our system works beautifully now. We even decided to purchase two more camera from them and asked them to install. I would highly recommend them."

Carol S on March 2023


Accel Fire Protection Services

New on AngiNew on Angi
Approved Pro

Accel Fire Protection Services

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

With an unrivaled commitment to excellence Accel Fire Protection Services is the unrivaled leader in fire protection services in the bay area. We are prepared for any demand that our customers may have, from the smallest repair to large commercial installation, we are ready for it all. Having spent years in the industry we have developed techniques to allow us to offer the most competitive pricing, the quickest turnaround, and the highest standards of any company in the area. Call us today and let us get to work for you! Our services includes: 1. Design and install fire sprinklers for residential and commercial, new construction or tenant Improvement. 2. Design and install Fire Suppression System for kitchen hood. 3. Design and install private fire Hydrant 4. Inspect, test, repair, and certify existing fire protection systems (Quarter, annual, 5-Year inspection and certifications)

With an unrivaled commitment to excellence Accel Fire Protection Services is the unrivaled leader in fire protection services in the bay area. We are prepared for any demand that our customers may have, from the smallest repair to large commercial installation, we are ready for it all. Having spent years in the industry we have developed techniques to allow us to offer the most competitive pricing, the quickest turnaround, and the highest standards of any company in the area. Call us today and let us get to work for you! Our services includes: 1. Design and install fire sprinklers for residential and commercial, new construction or tenant Improvement. 2. Design and install Fire Suppression System for kitchen hood. 3. Design and install private fire Hydrant 4. Inspect, test, repair, and certify existing fire protection systems (Quarter, annual, 5-Year inspection and certifications)


Home Theater and Satellite

4.67(
112
)
Approved Pro

Home Theater and Satellite

4.67(
112
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
28 years of experience

Home Theater and Satellite was officially established in 1997, but we have far more years of experience behind us. Do you need your home theater system upgraded? Would you like a new telephone system installed? We can do it all! With Home Theater and Satellite, you can be sure you will have the options you want and the customer service that you deserve. Currently with ServiceMagic, we are specializing in, but are definitely not limited to; antenna installation, replacement, or repair, home theater systems or media centers, satellite dish systems installation and repair, telephone jacks, wiring, and telephone system installation. I, Mark Zarzycki, got into business for myself over ten years ago with one goal in mind, and that is to make people happy and keep them happy so they want to repeat business with me. My current repeat customer base is a testament, as well as a compliment, to the hard earned efforts of past projects. This is why I go the extra mile for my clients and guarantee their satisfaction. You can rest assured that Home Theater and Satellitewill meet and exceed all of your expectations and will communicate with you so we understand your needs. Please feel free to contact Home Theater and Satellite to learn more about the services we offer or to work with a professional to set a convenient appointment. Thank you for your interest and we look forward to working with you.

"EXCELLENT JOB. MADE CREATIVE USE OF SUPPLIES AND HAD ALL TOOLS NECESSARY TO DO THE JOB. EXCELLENT!"

Ed S on July 2025

Home Theater and Satellite was officially established in 1997, but we have far more years of experience behind us. Do you need your home theater system upgraded? Would you like a new telephone system installed? We can do it all! With Home Theater and Satellite, you can be sure you will have the options you want and the customer service that you deserve. Currently with ServiceMagic, we are specializing in, but are definitely not limited to; antenna installation, replacement, or repair, home theater systems or media centers, satellite dish systems installation and repair, telephone jacks, wiring, and telephone system installation. I, Mark Zarzycki, got into business for myself over ten years ago with one goal in mind, and that is to make people happy and keep them happy so they want to repeat business with me. My current repeat customer base is a testament, as well as a compliment, to the hard earned efforts of past projects. This is why I go the extra mile for my clients and guarantee their satisfaction. You can rest assured that Home Theater and Satellitewill meet and exceed all of your expectations and will communicate with you so we understand your needs. Please feel free to contact Home Theater and Satellite to learn more about the services we offer or to work with a professional to set a convenient appointment. Thank you for your interest and we look forward to working with you.

"EXCELLENT JOB. MADE CREATIVE USE OF SUPPLIES AND HAD ALL TOOLS NECESSARY TO DO THE JOB. EXCELLENT!"

Ed S on July 2025


Avatar for LANgineers

LANgineers

5.00(
1
)
Approved Pro

LANgineers

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

LANgineers has been delivering high-tech, IT Firepower services to businesses since 1993. We offer Surveillance Systems, including AI to detect loitering, concealment, consumption, Live Guard Services; Hosted VoIP Phone Systems, Wi-Fi Distribution, ISP both Backup and Primary, Multi-tenant Door Phones; Building to Building Radio Links, small solar power fr cameras and WiFi; Privately owned, LANgineers corporate offices are located in the San Francisco Bay Area. Even though we're brand new to Anji, we've been around for 32 years.

"LANgineers did an outstanding job installing our new business phone system! From start to finish, their team was professional, courteous, and incredibly knowledgeable. The installation was smooth and efficient, and they took the time to ensure everything was working perfectly before wrapping up. Their customer service was excellent - responsive, patient, and truly focused on making sure we were happy. Highly recommend LANgineers to any business looking for reliable communication solutions!"

Dominica L on October 2025

LANgineers has been delivering high-tech, IT Firepower services to businesses since 1993. We offer Surveillance Systems, including AI to detect loitering, concealment, consumption, Live Guard Services; Hosted VoIP Phone Systems, Wi-Fi Distribution, ISP both Backup and Primary, Multi-tenant Door Phones; Building to Building Radio Links, small solar power fr cameras and WiFi; Privately owned, LANgineers corporate offices are located in the San Francisco Bay Area. Even though we're brand new to Anji, we've been around for 32 years.

"LANgineers did an outstanding job installing our new business phone system! From start to finish, their team was professional, courteous, and incredibly knowledgeable. The installation was smooth and efficient, and they took the time to ensure everything was working perfectly before wrapping up. Their customer service was excellent - responsive, patient, and truly focused on making sure we were happy. Highly recommend LANgineers to any business looking for reliable communication solutions!"

Dominica L on October 2025


Avatar for L N S

L N S

4.65(
36
)
Approved Pro

L N S

4.65(
36
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
10 local quotes requested

L N S invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you will be pleased you did. Thank you!

""

Thomas A on April 2024

L N S invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We thrive to take care of all of our clients unique needs. We are ethical, honest and easy to communicate with. Call us today you will be pleased you did. Thank you!

""

Thomas A on April 2024


Avatar for TECHINSF CONSULTING LLC

TECHINSF CONSULTING LLC

5.00(
5
)
Approved Pro

TECHINSF CONSULTING LLC

5.00(
5
)
Approved Pro
28 local quotes requested
22 years of experience

We specialize in professional Low-Voltage Wiring for homes and businesses, including Ethernet and phone cabling, speaker wiring, coax, fiber, underground wiring, and wire testing. In addition to clean, reliable cabling, we also offer full-service IT support, from WiFi systems and networking to cloud services, desktop help, and security solutions. Whether you need structured cabling, door access systems, TV mounting, or expert IT help, we deliver fast, dependable service with both remote and on-site options.

We specialize in professional Low-Voltage Wiring for homes and businesses, including Ethernet and phone cabling, speaker wiring, coax, fiber, underground wiring, and wire testing. In addition to clean, reliable cabling, we also offer full-service IT support, from WiFi systems and networking to cloud services, desktop help, and security solutions. Whether you need structured cabling, door access systems, TV mounting, or expert IT help, we deliver fast, dependable service with both remote and on-site options.

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Home Security Systems questions, answered by experts

The best type of deadbolt depends on your specific needs. If accessibility is your primary concern, a single-cylinder deadbolt is the easiest to operate. Mortise locks are likely the most secure type of deadbolt you can install, but single-cylinders combined with secondary locking mechanisms like vertical locks are also a great option. Smart locks will give you the most flexibility to open and close your locks whenever and wherever you need to. 

A keypad deadbolt, a lock requiring a code entered on a keypad entry, can be a convenient option for families with children coming in and out and needing access to the home. It can also offer an easy solution if you rent your home out, since you can easily change the code as needed. So, depending on your home entry’s needs, a keypad deadbolt may be worth the extra expense.

Professionals optimize camera placement, integrate recording systems, and ensure tamper-proof security.

Find a vetted and trusted locksmith to work on your home so you can feel comfortable and safe. Hire a professional with these qualifications:

  • Search a verified directory of locksmiths near you, like those on Angi. 

  • Check for an Associated Locksmiths of America (ALOA) logo on their website or company logo.

  • Read company reviews. You can also check their social media pages.

  • Ask for a pro’s credentials, insurance, licensure, and customer testimonials. 

  • Check if the locksmith is knowledgeable about various topics, from decorative locks to the newest technologies on the market.

A deadbolt is one of the most secure locks you can install on your front door, so it is better in terms of home security than other types of locks. While deadbolts are typically more expensive than a regular lock, they’re still quite cost-effective and provide an additional layer of security that may even deter some intruders.

The Portola Valley, 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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