We decided it was time to upgrade our front and back doors to something safer and more durable. We got a few estimates and ended up going with Expert because they offfered the best value and seemed the most knowledgeable. They installed new security doors that feel really solid, and they...

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There are 34 highly-rated local security door installation pros.
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TRUSTED BY LOMITA, CA HOMEOWNERS
4.5
Average homeowner rating183
Verified security door installation services reviews
Security Door Installation reviews from real Angi homeowners in Lomita, CA
Last update on October 14, 2025
- Jennifer B.
- Lora M.
Very professional and prompt service. Even when the garage door had a small issue, they came right out and fixed it for us , I would recommend them to anyone.
- Michelle W.
Had them come out 2 months ago for a quote and they completed the job yesterday within 1 day of work! easy process, happy with my new black windows and doors.
- Michael G.
We are not from the area and had an emergency security issue with doors that had been repeatedly broken into with attempted repairs made by non-professionals. Not only did they immediately answer the call, but also took their time to accurately assess the job: labor/materials needed, time...
- Cecil D.
The lock broke on my front door and I needed it repair almost immediately and feared I would have to wait all day. I searched Angie’s List and came up with All Over Lock & Key. After speaking to the company, they said it would be about two hours before someone could be there. Thirty minutes...
- Jon B.
I never give reviews but I have to say Jerry's Doors & Windows did an amazing job!!! Very experienced, meticulous and quick. He and his assistant are absolutely professionals in this particular craft. Would HIGHLY recommend if you care about something as important as a front door!
- Rita B.
The crew came on time and were very efficient. The relocation was a pleasant because it was done from one care facility to another which had security codes on the doors. Movers did the job easily and quick. Guys were really quick even though they were working on a very hot day. During the...
Find Security door installation pros in Lomita

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.
"There’s nothing like having the best of the best. I’ve used the other big security names before like Vivint and Brinks. They are OK. But after getting acclimated with ADT, it is clear why they are the best. Pricing is fair, equipment is reliable, and every one genuinely seems happy at their job. This goes a long way to a paying customer. Just our perspective for anyone else that is considering all of the big providers in the alarm system landscape. ADT is well well worth it."
Brianne E 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.
"There’s nothing like having the best of the best. I’ve used the other big security names before like Vivint and Brinks. They are OK. But after getting acclimated with ADT, it is clear why they are the best. Pricing is fair, equipment is reliable, and every one genuinely seems happy at their job. This goes a long way to a paying customer. Just our perspective for anyone else that is considering all of the big providers in the alarm system landscape. ADT is well well worth it."
Brianne E on October 2025

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!
"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

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
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S 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
"I regret ever choosing SafeStreets. The whole process was frustrating from the start. The technician who came to install the system was late, didn’t answer my questions properly, and left my house a mess. When I reached out to customer service, I was put on hold for over an hour, only to get a half-baked answer. Save yourself the trouble and look elsewhere."
Jessica S on October 2025

Smart Window Company
Smart Window Company
*We believe in treating people with integrity and kindness. *We believe in customizing our windows and doors to give southern California homeowners benefits that matter (at no additional cost) *We've performed thousands of installations and have countless happy customers who love how our gorgeous windows and doors help them with energy efficiency, noise prevention and security, while making their homes a more beautiful and comfortable place to live. *Our craftsmen installers do not take payment until our work is complete and you are happy (we don’t even require a deposit). *We do not believe in high pressure sales. You have the option to meet with us by Zoom and have your quote emailed. *We offer monthly payments with zero interest. *We have a 3 window minimum for installs
"Our small house, built in 1948, is excellently located, but all of the windows were outdated louver windows, which were drafty, allowed external noise to enter, and caused our heating and cooling to escape. We had wanted to replace them for years; however, previous quotes from other companies were well beyond what we could afford. We decided to try again this year and requested a quote from Smart Window Company. David Winkler promptly contacted us on January 18, 2025, and arranged a Virtual Consultation via Zoom for the following day as this was most convenient for us. During the meeting, he spent nearly two hours understanding our specific requirements and exploring available options, providing a detailed explanation regarding the custom replacement windows. He demonstrated professionalism and was approachable throughout the interaction. On January 20, we received our initial quote for replacing 11 windows with 10 new ones, as we opted to merge two old windows into a larger picture window in the master bedroom. All windows included a lifetime guarantee. Although another company provided a significantly lower quote without any guarantee, David diligently worked to adjust the price until it was comparable to the lower quote. Consequently, we signed the contract with Smart Window Company on January 28. The Installation Manager, Tom, visited on February 3 to verify the final measurements for the windows. He professionally explained the installation process and advised us on preparations. On February 8, he informed us via email that our project had been ordered, with delivery expected in 6 to 8 weeks. The windows arrived ahead of schedule, and we scheduled the installation for March 3. On the installation day, the three-man crew led by Bryan, the Crew Leader, arrived promptly at the appointment time. Bryan communicated effortlessly in perfect English with us, and in Spanish with Byron and the rest of the crew. He remeasured everything and verified each window's size. Unfortunately, one window had incorrect dimensions due to a manufacturing error. Nevertheless, the team proceeded efficiently and meticulously, removing the old louvers and installing the replacements within four hours. Bryan assured us that the correct-sized window would be expedited from the manufacturer. The job site was left clean and tidy both inside and outside. Today, on March 19, Peter, the Job Foreman, installed the remaining window, completing the task in less than an hour. We are extremely satisfied with the fantastic customer service, the excellent quality of the product and the workmanship and the overall dedication to customer satisfaction provided by the entire staff at Smart Window Company. We highly recommend them to anyone in need of quality windows at a reasonable price."
Sid F on March 2025
*We believe in treating people with integrity and kindness. *We believe in customizing our windows and doors to give southern California homeowners benefits that matter (at no additional cost) *We've performed thousands of installations and have countless happy customers who love how our gorgeous windows and doors help them with energy efficiency, noise prevention and security, while making their homes a more beautiful and comfortable place to live. *Our craftsmen installers do not take payment until our work is complete and you are happy (we don’t even require a deposit). *We do not believe in high pressure sales. You have the option to meet with us by Zoom and have your quote emailed. *We offer monthly payments with zero interest. *We have a 3 window minimum for installs
"Our small house, built in 1948, is excellently located, but all of the windows were outdated louver windows, which were drafty, allowed external noise to enter, and caused our heating and cooling to escape. We had wanted to replace them for years; however, previous quotes from other companies were well beyond what we could afford. We decided to try again this year and requested a quote from Smart Window Company. David Winkler promptly contacted us on January 18, 2025, and arranged a Virtual Consultation via Zoom for the following day as this was most convenient for us. During the meeting, he spent nearly two hours understanding our specific requirements and exploring available options, providing a detailed explanation regarding the custom replacement windows. He demonstrated professionalism and was approachable throughout the interaction. On January 20, we received our initial quote for replacing 11 windows with 10 new ones, as we opted to merge two old windows into a larger picture window in the master bedroom. All windows included a lifetime guarantee. Although another company provided a significantly lower quote without any guarantee, David diligently worked to adjust the price until it was comparable to the lower quote. Consequently, we signed the contract with Smart Window Company on January 28. The Installation Manager, Tom, visited on February 3 to verify the final measurements for the windows. He professionally explained the installation process and advised us on preparations. On February 8, he informed us via email that our project had been ordered, with delivery expected in 6 to 8 weeks. The windows arrived ahead of schedule, and we scheduled the installation for March 3. On the installation day, the three-man crew led by Bryan, the Crew Leader, arrived promptly at the appointment time. Bryan communicated effortlessly in perfect English with us, and in Spanish with Byron and the rest of the crew. He remeasured everything and verified each window's size. Unfortunately, one window had incorrect dimensions due to a manufacturing error. Nevertheless, the team proceeded efficiently and meticulously, removing the old louvers and installing the replacements within four hours. Bryan assured us that the correct-sized window would be expedited from the manufacturer. The job site was left clean and tidy both inside and outside. Today, on March 19, Peter, the Job Foreman, installed the remaining window, completing the task in less than an hour. We are extremely satisfied with the fantastic customer service, the excellent quality of the product and the workmanship and the overall dedication to customer satisfaction provided by the entire staff at Smart Window Company. We highly recommend them to anyone in need of quality windows at a reasonable price."
Sid F on March 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

Alset Electric
Alset Electric
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
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

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
"Clean and reliable"
Tamar L on October 2024
- 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
"Clean and reliable"
Tamar L on October 2024

Its Showtime Inc
Its Showtime Inc
Its Showtime Inc has been in business since 1999 and specializes in making complex audio and video system easy to use. From the simplist living room system to the most complex bar or restaurant system we can make the system not only look clean but give you the ability to work it with ease.
"Amazing. These guys are the best. I have used them several times and I refer them often"
Landon P on October 2024
Its Showtime Inc has been in business since 1999 and specializes in making complex audio and video system easy to use. From the simplist living room system to the most complex bar or restaurant system we can make the system not only look clean but give you the ability to work it with ease.
"Amazing. These guys are the best. I have used them several times and I refer them often"
Landon P on October 2024

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

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
FAQs for security door installation projects in Lomita, CA
The average cost of a home security system is about $700, ranging from $280 to $1,150. Costs to consider include equipment, surveillance fees, and other additional features. Cost factors that determine your system’s price include the type of security system, materials, labor, activation fees, monthly fees, and permits. Additional features and upgrades may include:
Video surveillance monitoring: $40–$65 per month
Smart home locks: $150
Smart home lighting: $15–$90
Smart smoke, fire, and carbon monoxide alarms: $35–$100
Smart thermostat: $130–$500
Door installation usually takes three and four hours, including removing the old door and frame, fitting the new door and frame in place, shimming it to make sure it’s perfectly level, and making adjustments to the hinges and locking mechanisms to ensure proper functionality. A door-hanging professional can replace an interior door in between one and two hours. Door installation will take significantly longer if your installer needs to create a wall opening, and it can take less time if the existing door frame remains.
The average cost to install a door is around $1,100, but you could pay anywhere from $150 for a hollow-core interior door installation up to $2,000 or a high-end exterior door installation. There are a few cost factors to consider to get an accurate price, including whether your wall opening exists, the type of door, the quality and security of the door, whether you need to replace the frame, and the door size. You can expect to pay $150 to $700 for a standard 36-by-80-inch door and between $400 and $1,600 for an 80-by-48-inch door.
Yes, a home security system can be worth it for your peace of mind alone, but it can also save you up to 20% on your home insurance. The insurance savings will help defray the initial setup costs and subscription costs over time. Locations with higher crime rates also make home security systems a valuable investment, but it ultimately depends on your personal preferences and asset values.
It’s possible to install a door yourself if the wall opening already exists, but the work is rather complicated, and a professional installation is usually well worth the investment. For your door to work and close properly, you’ll need to shim and level the door frame in your wall perfectly, which can be difficult. Additionally, we recommend you always hire a professional door installer to place an exterior door, as mistakes during the installation process can lead to poor security for your home.
The Lomita, 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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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"