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Verified Reviews for Security Door Installation pros in Monrovia, CA
*The Angi rating for Security Door Installation companies in Monrovia, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Security Door Installation needs.
*The HomeAdvisor rating for Security Door Installation companies in Monrovia, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Security Door Installation needs.
Last update on November 11, 2025
Find Security door installation pros in Monrovia

Harmony Electrical, Plumbing and Air
Harmony Electrical, Plumbing and Air
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!
"Tyler was excellent and Brian was very accommodating for my schedule. I would definitely use them in the future."
Pixie B on September 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!
"Tyler was excellent and Brian was very accommodating for my schedule. I would definitely use them in the future."
Pixie B on September 2025

ADT
ADT
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
Smart Electrical Solutions Inc
Smart Electrical Solutions Inc
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

SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
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

Approved Contractor Inc.
Approved Contractor Inc.
- Excellent Customer Service - Superior Craftsmanship - 15+ years in business - Family owned and operated - Competitive Pricing - Super Service Award Winner - Elite Preferred James Hardie Contractor - Andersen Certified
"Costumer service was great,"
Olivia C on October 2025
- Excellent Customer Service - Superior Craftsmanship - 15+ years in business - Family owned and operated - Competitive Pricing - Super Service Award Winner - Elite Preferred James Hardie Contractor - Andersen Certified
"Costumer service was great,"
Olivia C on October 2025
Brothers Home Improvement Inc
Brothers Home Improvement Inc
Family Owned and Operated since 1994. Nine Brothers & Sisters Striving For Your Complete Satisfaction! Energy Efficient, Replacement Windows and Doors. No Subcontractors! No High-pressure Sales! Ranked Among The Top Nationwide by Qualified Remodelers! AAMA Certified and Members of the Better Business Bureau. Quality Craftsmanship. Lifetime Warranties. Save $75 per window & $150 per door. Financing Available on approved credit. Additional phone numbers: - (310) 670-0801, (949) 250-9124 & (562) 733-4202.
"They never followed up."
Mike C on July 2020
Family Owned and Operated since 1994. Nine Brothers & Sisters Striving For Your Complete Satisfaction! Energy Efficient, Replacement Windows and Doors. No Subcontractors! No High-pressure Sales! Ranked Among The Top Nationwide by Qualified Remodelers! AAMA Certified and Members of the Better Business Bureau. Quality Craftsmanship. Lifetime Warranties. Save $75 per window & $150 per door. Financing Available on approved credit. Additional phone numbers: - (310) 670-0801, (949) 250-9124 & (562) 733-4202.
"They never followed up."
Mike C on July 2020

Renewal by Andersen
Renewal by Andersen
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"Did not start yet will be in November "
Gisele S on October 2025
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"Did not start yet will be in November "
Gisele S on October 2025

Guardian Fire Protection
Guardian Fire Protection
Guardian Fire Protection Inc, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"Perfect timing ~"
Lauren L on May 2023
Guardian Fire Protection Inc, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"Perfect timing ~"
Lauren L on May 2023

BORIS BETOEI FIRE PROTECTION
BORIS BETOEI FIRE PROTECTION
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
A.H.S. Protection
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
The Monrovia, CA homeowners’ guide to security door installation services
From average costs to expert advice, get all the answers you need to get your job done.

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