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Find Alarm or security system installers in Altadena

Avatar for Covenant Protection

Covenant Protection

1230 Madera Rd Suite 5
5.00(
20
)
Approved Pro

Covenant Protection

1230 Madera Rd Suite 5
5.00(
20
)
Approved Pro
Customers say: Quick response
18 years of experience
Free onsite estimate

At Covenant Protection, our focus is providing our customers with peace of mind and an exceptional service experience. Covenant Protection is a veteran owned security company and has been serving our customers since 2007. We provide installation, monitoring and service to residential and commercial customers for alarm systems, security cameras, wellness monitoring, medical alert, smarthome and building automation. We are constantly evolving to stay current with the latest technology trends and have maintained a focus on providing a world-class customer experience. Our philosophy is simple; peace of mind with every install at a price to fit almost any budget. Every location has its own security needs. Tell us more about your security concerns, so that we can get started on a protection plan. Let us help you design a security system for your home, business or a loved one today!

"Perfect!!!!!!!"

Shawn C on June 2025

At Covenant Protection, our focus is providing our customers with peace of mind and an exceptional service experience. Covenant Protection is a veteran owned security company and has been serving our customers since 2007. We provide installation, monitoring and service to residential and commercial customers for alarm systems, security cameras, wellness monitoring, medical alert, smarthome and building automation. We are constantly evolving to stay current with the latest technology trends and have maintained a focus on providing a world-class customer experience. Our philosophy is simple; peace of mind with every install at a price to fit almost any budget. Every location has its own security needs. Tell us more about your security concerns, so that we can get started on a protection plan. Let us help you design a security system for your home, business or a loved one today!

"Perfect!!!!!!!"

Shawn C on June 2025


Avatar for CSI Security

CSI Security

11400 W Olympic Blvd, Suite 200
4.63(
8
)
Approved Pro

CSI Security

11400 W Olympic Blvd, Suite 200
4.63(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

CSI Security is an independent local security, fire, camera, and card access system firm in West Los Angeles. We are dedicated to delivering exceptional results to our clients. With over 40 years of industry experience and 10,000 system installs, we have developed keen knowledge of installing trouble-free systems.

"My security system was not working properly. They where here on time the repair person Amir was knowledgeable and replaced my transformer and backup battery in less than a hour. Now it works great. I would recommend to anyone who wants or has security system.. Review by jim G. Malibu,CA"

Jim G on October 2020

CSI Security is an independent local security, fire, camera, and card access system firm in West Los Angeles. We are dedicated to delivering exceptional results to our clients. With over 40 years of industry experience and 10,000 system installs, we have developed keen knowledge of installing trouble-free systems.

"My security system was not working properly. They where here on time the repair person Amir was knowledgeable and replaced my transformer and backup battery in less than a hour. Now it works great. I would recommend to anyone who wants or has security system.. Review by jim G. Malibu,CA"

Jim G on October 2020


The Crime Fighter, LLC

24404 South Vermont Avenue
5.00(
1
)
Approved Pro

The Crime Fighter, LLC

24404 South Vermont Avenue
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

We have over 75 years of experience in the business. Here at The Crimefighter, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Robert has exceptional customer service and did a great job. Very knowledgeable."

Beth G on March 2022

We have over 75 years of experience in the business. Here at The Crimefighter, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Robert has exceptional customer service and did a great job. Very knowledgeable."

Beth G on March 2022


Avatar for Mar Vista Security

Mar Vista Security

PO 661219
4.77(
28
)
Approved Pro

Mar Vista Security

PO 661219
4.77(
28
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
46 years of experience

For very good value call us Years of Alarm Security and entry INTERCOM systems and monitoring since 1979... Burglar alarms..intercoms..nursecall systems..repair..upgrade. monitoring.. We are a highly trained and truly value our clients and do the best we can for you. We have partner with most major manufacturers for technical support. Our partner monitoring facilities cover over a million accounts but we are local to the la area.

"Jack did a great job of upgrading my 30 year old security system, adapting it to new sensors and replacing both the "brain" and touchpad at the front door. I was very pleased with his work."

James F on October 2024

For very good value call us Years of Alarm Security and entry INTERCOM systems and monitoring since 1979... Burglar alarms..intercoms..nursecall systems..repair..upgrade. monitoring.. We are a highly trained and truly value our clients and do the best we can for you. We have partner with most major manufacturers for technical support. Our partner monitoring facilities cover over a million accounts but we are local to the la area.

"Jack did a great job of upgrading my 30 year old security system, adapting it to new sensors and replacing both the "brain" and touchpad at the front door. I was very pleased with his work."

James F on October 2024


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
6501 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 SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
292
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.85(
292
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
5340 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

"connected with safestreets to get home security setup. it’s been fine. have used many other services before but this one seems like it will fit our needs best."

Cheri O 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

"connected with safestreets to get home security setup. it’s been fine. have used many other services before but this one seems like it will fit our needs best."

Cheri O on October 2025


Avatar for S.C. Home Repair

S.C. Home Repair

Contra Costa County
4.91(
33
)
Approved Pro

S.C. Home Repair

Contra Costa County
4.91(
33
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2075 local quotes requested

Full service Home Maintenance & Repair. Specializing in painting, flooring and bathroom/kitchen remodeling. Electrical, plumbing etc. Licensed General Contractor License #1088129

"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."

SANDRA W on September 2025

Full service Home Maintenance & Repair. Specializing in painting, flooring and bathroom/kitchen remodeling. Electrical, plumbing etc. Licensed General Contractor License #1088129

"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."

SANDRA W on September 2025


Avatar for RJ Laun Construction

RJ Laun Construction

1175 Rexford Ave
4.94(
16
)

RJ Laun Construction

1175 Rexford Ave
4.94(
16
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

A full service residential remodeling company specializing in older homes.

A full service residential remodeling company specializing in older homes.


The Gooden Group

6100 Center Drive
No reviews yet

The Gooden Group

6100 Center Drive
No reviews yet
45 years of experience

The Gooden Group is a full service real estate development and construction firm with the in-house expertise to execute virtually every facet of a project's life cycle. Through its central office and its affiliate companies, The Bedford Group, TMC Management, and Urban X Marketing, Gooden Group is also able to assume hands-on management of its properties, as well as implement the necessary sales and marketing activities for their new home communities.

The Gooden Group is a full service real estate development and construction firm with the in-house expertise to execute virtually every facet of a project's life cycle. Through its central office and its affiliate companies, The Bedford Group, TMC Management, and Urban X Marketing, Gooden Group is also able to assume hands-on management of its properties, as well as implement the necessary sales and marketing activities for their new home communities.


Avatar for MDM Custom Remodeling Inc

MDM Custom Remodeling Inc

8721 Santa Monica Blvd #452
No reviews yet

MDM Custom Remodeling Inc

8721 Santa Monica Blvd #452
No reviews yet
Free onsite estimate

MDM Custom Remodeling Inc offer services are kitchen, bathroom remodeling, room addition, 3D design, custom homes etc. MDM Custom Remodeling Inc a certified and insured company. Our teams of workers are well educated and very proficient in all trades. We present all interior and exterior business and services including blueprints and 3D design, room addition, foundation, complete kitchen and bathrooms, electrical, windows and doors etc at Los Angeles. Just follow our website- www.mdmcustomremodeling.com >>Service Area:- 90265 Malibu, 90266 Manhattan Beach, 90272 Pacific Palisades, 90274 Palos Verdes Peninsula, 90275 Rancho Palos Verdes, 90277 Redondo Beach, 90278 Redondo Beach, 90290 Topanga, 90291 Venice, 90292 Marina Del Rey, 90293 Playa Del Rey, 90295 Marina Del Rey, 90296 Playa Del Rey, 90402 Santa Monica, 90403 Santa Monica, 90404 Santa Monica, 90405 Santa Monica, 90501 Torrance, 90502 Torrance, 90503 Torrance, 90504 North (Torrance), 90505 Torrance, 90506 Torrance, 91001 Altadena, 91006 Arcadia, 91007 Arcadia, 91011 La Canada Flintridge, 91012 La Canada, 91016 Monrovia, 91108 San Marino, 91125 Pasadena, 91126 Pasadena, 91201 Grand Central, 91202 North Glendal, 91203 Glendale, 91204 Tropico, 91205 Tropico, 91206 Verdugo Viejo, 91207 Verdugo Viejo, 91208 Glendale, 91214 La Crescenta, 91302 Calabasas, 91302 Hidden Hills, 91303 Canoga Park, 91304 Canoga Park Annex, 91306 Winnetka, 91307 Canoga Park, 91311 Chatsworth, 91311 Porter Ranch, 91316 Encino, 91324 Northridge, 91325 Northridge, 91505 Magnolia Park, 91506 Burbank, 91017 Monrovia, 91020 Montrose, 91024 Sierra Madre, 91030 South Pasadena, 91031 South Pasadena, 91040 Sunland, 91042 Tujunga, 91101 Pasadena, 91103 Pasadena, 91104 Pasadena, 91105 Pasadena, 91107 East Pasadena, 91523 Burbank, 91602 Toluca Lake, 91604 Studio City, 91607 Valley Village, 91607 North Hollywood, 91326 Northridge, 91330 Northridge, 91335 Reseda, 91343 North Hills, 91344 Granada Hills, 91356 Tarzana, 91364 Woodland Hills, 91367 Woodland Hills, 91403 Sherman Oaks, 91436 Encino, 90067 Century City, 90068 Hollywood, 90069 West Hollywood, 90077 Bel Air, 90089 Los Angeles, 90210 Beverly Hills, 90211 Beverly Hills, 90212 Beverly Hills, 90254 Hermosa Beach, 91501 Burbank, 91502 Burbank, 91504 Burbank (Glenoaks) >>Provide Services:- addition contractor Marina Del Rey, bathroom remodelers Marina Del Rey, bathroom remodeling Marina Del Rey, bathroom remodeling contractors Marina Del Rey, bathroom remodeling cost Marina Del Rey, contractor los angeles Marina Del Rey, custom home builder Marina Del Rey, custom home builders Marina Del Rey, custom home construction Marina Del Rey, custom home contractor Marina Del Rey, home addition Marina Del Rey, Home addition contractor Marina Del Rey, home additions Marina Del Rey, home contractors Marina Del Rey, home expansion Marina Del Rey, home remodeling Marina Del Rey, home remodeling companies Marina Del Rey, home remodeling contractor Marina Del Rey, home remodeling contractors Marina Del Rey, house remodeling Marina Del Rey, kitchen bathroom remodeling Marina Del Rey, kitchen remodel Marina Del Rey, kitchen remodeling Marina Del Rey, kitchen remodeling contractor Marina Del Rey, kitchen remodeling contractors Marina Del Rey, kitchen renovation contractor Marina Del Rey, los angeles construction Marina Del Rey, los angeles contractors Marina Del Rey, los angeles remodeling Marina Del Rey, remodeling a house Marina Del Rey, remodeling home Marina Del Rey, remodeling los angeles Marina Del Rey, room addition Marina Del Rey, room addition contractor Marina Del Rey, addition contractor Playa Del Rey, bathroom remodelers Playa Del Rey, bathroom remodeling Playa Del Rey, bathroom remodeling contractors Playa Del Rey, bathroom remodeling cost Playa Del Rey, contractor los angeles Playa Del Rey, custom home builder Playa Del Rey, custom home builders Playa Del Rey, custom home construction Playa Del Rey, custom home con...

MDM Custom Remodeling Inc offer services are kitchen, bathroom remodeling, room addition, 3D design, custom homes etc. MDM Custom Remodeling Inc a certified and insured company. Our teams of workers are well educated and very proficient in all trades. We present all interior and exterior business and services including blueprints and 3D design, room addition, foundation, complete kitchen and bathrooms, electrical, windows and doors etc at Los Angeles. Just follow our website- www.mdmcustomremodeling.com >>Service Area:- 90265 Malibu, 90266 Manhattan Beach, 90272 Pacific Palisades, 90274 Palos Verdes Peninsula, 90275 Rancho Palos Verdes, 90277 Redondo Beach, 90278 Redondo Beach, 90290 Topanga, 90291 Venice, 90292 Marina Del Rey, 90293 Playa Del Rey, 90295 Marina Del Rey, 90296 Playa Del Rey, 90402 Santa Monica, 90403 Santa Monica, 90404 Santa Monica, 90405 Santa Monica, 90501 Torrance, 90502 Torrance, 90503 Torrance, 90504 North (Torrance), 90505 Torrance, 90506 Torrance, 91001 Altadena, 91006 Arcadia, 91007 Arcadia, 91011 La Canada Flintridge, 91012 La Canada, 91016 Monrovia, 91108 San Marino, 91125 Pasadena, 91126 Pasadena, 91201 Grand Central, 91202 North Glendal, 91203 Glendale, 91204 Tropico, 91205 Tropico, 91206 Verdugo Viejo, 91207 Verdugo Viejo, 91208 Glendale, 91214 La Crescenta, 91302 Calabasas, 91302 Hidden Hills, 91303 Canoga Park, 91304 Canoga Park Annex, 91306 Winnetka, 91307 Canoga Park, 91311 Chatsworth, 91311 Porter Ranch, 91316 Encino, 91324 Northridge, 91325 Northridge, 91505 Magnolia Park, 91506 Burbank, 91017 Monrovia, 91020 Montrose, 91024 Sierra Madre, 91030 South Pasadena, 91031 South Pasadena, 91040 Sunland, 91042 Tujunga, 91101 Pasadena, 91103 Pasadena, 91104 Pasadena, 91105 Pasadena, 91107 East Pasadena, 91523 Burbank, 91602 Toluca Lake, 91604 Studio City, 91607 Valley Village, 91607 North Hollywood, 91326 Northridge, 91330 Northridge, 91335 Reseda, 91343 North Hills, 91344 Granada Hills, 91356 Tarzana, 91364 Woodland Hills, 91367 Woodland Hills, 91403 Sherman Oaks, 91436 Encino, 90067 Century City, 90068 Hollywood, 90069 West Hollywood, 90077 Bel Air, 90089 Los Angeles, 90210 Beverly Hills, 90211 Beverly Hills, 90212 Beverly Hills, 90254 Hermosa Beach, 91501 Burbank, 91502 Burbank, 91504 Burbank (Glenoaks) >>Provide Services:- addition contractor Marina Del Rey, bathroom remodelers Marina Del Rey, bathroom remodeling Marina Del Rey, bathroom remodeling contractors Marina Del Rey, bathroom remodeling cost Marina Del Rey, contractor los angeles Marina Del Rey, custom home builder Marina Del Rey, custom home builders Marina Del Rey, custom home construction Marina Del Rey, custom home contractor Marina Del Rey, home addition Marina Del Rey, Home addition contractor Marina Del Rey, home additions Marina Del Rey, home contractors Marina Del Rey, home expansion Marina Del Rey, home remodeling Marina Del Rey, home remodeling companies Marina Del Rey, home remodeling contractor Marina Del Rey, home remodeling contractors Marina Del Rey, house remodeling Marina Del Rey, kitchen bathroom remodeling Marina Del Rey, kitchen remodel Marina Del Rey, kitchen remodeling Marina Del Rey, kitchen remodeling contractor Marina Del Rey, kitchen remodeling contractors Marina Del Rey, kitchen renovation contractor Marina Del Rey, los angeles construction Marina Del Rey, los angeles contractors Marina Del Rey, los angeles remodeling Marina Del Rey, remodeling a house Marina Del Rey, remodeling home Marina Del Rey, remodeling los angeles Marina Del Rey, room addition Marina Del Rey, room addition contractor Marina Del Rey, addition contractor Playa Del Rey, bathroom remodelers Playa Del Rey, bathroom remodeling Playa Del Rey, bathroom remodeling contractors Playa Del Rey, bathroom remodeling cost Playa Del Rey, contractor los angeles Playa Del Rey, custom home builder Playa Del Rey, custom home builders Playa Del Rey, custom home construction Playa Del Rey, custom home con...

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FAQs for alarm or security system installation projects in Altadena, CA

If you terminate your security system before your contract ends, you’ll likely have to pay a cancellation fee—often a percentage of the remaining contract balance. To avoid these fees, consider choosing a brand that offers contract-free plans, like SimpliSafe or Vivint. You can also negotiate with your provider to see if they provide pro-rated cancellation fees or special exceptions.

Paying for a security system is a valuable investment because it enhances your home’s safety and deters criminal activity. With millions of property crimes each year, having robust security measures helps protect your property and might even lower your insurance premiums. It's a worthwhile investment for lasting peace of mind.

The average cost to install security cameras ranges from $125 to $3,500, depending on the amount, type, and placement. To install a complete setup of four cameras, homeowners can expect to invest an average of $1,300 for labor and equipment. Installing multiple cameras gives you comprehensive coverage of vulnerable entry points and enhances overall property security.

The Altadena, CA homeowners’ guide to alarm or security system installations

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

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