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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon33
    Verified home security system services reviews

Find Home security system pros in Portola Valley

Avatar for ADT

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro
Customers say: Terrific value
3713 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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 2025


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
89 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’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 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’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 2025


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4430 Yankee Hill Rd
4.64(
655
)
Approved Pro

Service Champions Heating & Air Conditioning

4430 Yankee Hill Rd
4.64(
655
)
Approved Pro
Customers say: Super punctual
455 local quotes requested
22 years of experience

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"Our Service Tech, Alex Peck, arrived on time to perform the annual check up & tune-up of our HVAC System. He was very professional and following the Tune-Up asked if there was any other items that needed done or looked into that he could take care of. His services were very much appreciated and very professional. Lee"

Lain L on September 2025

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"Our Service Tech, Alex Peck, arrived on time to perform the annual check up & tune-up of our HVAC System. He was very professional and following the Tune-Up asked if there was any other items that needed done or looked into that he could take care of. His services were very much appreciated and very professional. Lee"

Lain L on September 2025


Avatar for California Low Voltage

California Low Voltage

1777 Hamilton Avenue, Suite 2030
New on AngiNew on Angi
Approved Pro

California Low Voltage

1777 Hamilton Avenue, Suite 2030
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.

50 Woodside Plz #214
3.50(
6
)
Approved Pro

Control Fire, Inc.

50 Woodside Plz #214
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.

1723 Dell Avenue
New on AngiNew on Angi
Approved Pro

Spaghetti Networks, Inc.

1723 Dell Avenue
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 Simplified Integrations, LLC

Simplified Integrations, LLC

793 S Tracy Blvd Suite 120
New on AngiNew on Angi
Approved Pro

Simplified Integrations, LLC

793 S Tracy Blvd Suite 120
New on AngiNew on Angi
Approved Pro
20 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.

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.


Avatar for Sherlock Surveillance

Sherlock Surveillance

1169 South 10th Steet
5.00(
4
)
Approved Pro

Sherlock Surveillance

1169 South 10th Steet
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

2385 Pleasant Acres Dr
New on AngiNew on Angi
Approved Pro

Accel Fire Protection Services

2385 Pleasant Acres Dr
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)


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Home Security Systems questions, answered by experts

Yes, you should always change your locks after buying a house. Do so as soon as possible after you move in. Otherwise, you won’t know who has working keys to the property, whether they’re spare keys or otherwise. If an intruder gains access to your house with a key, it may not be covered under your homeowners insurance.

You don’t need to completely revamp your security system constantly, but it’s a great idea to give it a once-over every year. Look for potential upgrades or new features—like smart home tech or replacing outdated equipment—that could boost your safety. If you make any significant changes, let your insurer know as they may adjust your discounts to reflect your improved security. Staying on top of your security not only keeps your home safe but ensures you’re getting the best possible rate on your insurance.

The most secure lock for a front door is typically a deadbolt. There are many types of deadbolts to choose from, the most basic of which is the standard single-cylinder deadbolt. This is the lock you find installed on most front doors. For added security, you could go with a double-cylinder deadbolt, which requires a key to operate the lock from both the outside and the inside. 

Yes, many providers offer remote troubleshooting and monitoring for business networks.

Depending on your needs and wants, investing in a security door can be well worth the cost. Now that you know the pros and cons, you can decide if it’s a purchase that makes sense for your family. If you’re ready to have one installed in your home, look into security door installers in your area.

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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.