His crew came out the following week. They were very professional and did a great job. Terry was right! We can open both doors just using one finger! We suffered so many years with difficult to open doors. I wish we did it much sooner. I would recommend them very highly. "},"url":"https://www.angi.com/companylist/us/ca/winnetka/california-sliding-door-parts-and-repair-services-reviews-304406.htm"},"position":6},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"D Locks","address":{"@type":"PostalAddress","addressRegion":"CA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Carolyn B."},"reviewBody":"David was exceptionally prompt and professional. We had asked him to repair a key lock on our pool gate (in addition to replacing an interior door with a key lock). He advised us that we needed to have work done on securing the fencing first or else the replacement of the bolt would be worthless. He was informative, caring, and had everything on his truck ready to go. An absolutely, positive experience."},"url":"https://www.angi.com/companylist/us/ca/sherman-oaks/d-locks-reviews-7515117.htm"},"position":7},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"LOWE'S","address":{"@type":"PostalAddress","addressRegion":"CA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Veronica W."},"reviewBody":"I purchased a storm door and closet doors from them, which they installed. They did a very nice job. They also installed a new water heater for me that I bought from them and did a good job on that as well. "},"url":"https://www.angi.com/companylist/us/ca/hawthorne/lowe%27s-reviews-3187363.htm"},"position":8},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"EXPERT WINDOW AND DOOR INSTALLATIONS","address":{"@type":"PostalAddress","addressRegion":"CA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Debbie G."},"reviewBody":"We hired Gary/Expert Window and Door Installations to put an accordion door between our living room and dining room and a swinging door from the kitchen into the dining room. There were previously no doors there. He did an excellent job, the doors are high quality and they look great. Because one of the door frames was uneven, Gary had a bit of a challenge, but he came through! I highly recommend Gary but I will say he was a bit hard to get a hold of and the time between ordering the doors and the installation was longer than expected. That being said, I would use him, again. "},"url":"https://www.angi.com/companylist/us/ca/granada-hills/expert-window-and-door-installations-reviews-202407.htm"},"position":9},{"@type":"ListItem","item":{"@type":"LocalBusiness","name":"Lion Security & Locksmith","address":{"@type":"PostalAddress","addressRegion":"CA","addressCountry":"US"},"review":{"@type":"Review","author":{"@type":"Person","name":"Charlene G."},"reviewBody":"When We finished remodeling the driveway at our home we decided to add a an iron gate to make the property more secure. The company that install the gate did not do any low voltage work so we needed to find someone that can add an intercom system so we could control the access into the property from our phone. We found out about lion security locksmith online and decided to get an estimate for the work. Leo , the owner ,came over himself and offered us few options to get the work done. We compered his pricing with few other companies in the area and found out that not only that he offered us a great price he is giving us a better quality product than the other companies. Work was professional and very clean! We are very happy with the service and the outcome! "},"url":"https://www.angi.com/companylist/us/ca/los-angeles/lion-security-and-locksmith-reviews-2305807.htm"},"position":10}]}
Security Door Installation reviews from real Angi homeowners in Northridge, CA
Last update on October 14, 2025
Juan L.
5.0
05/2025
Very good job
Sliding patio screen door
Tracy H.
5.0
10/2023
A Door Experience not only showcased expertise in fixing my French sliding door but also impressed with their fair pricing. Unlike other contractors pushing for replacement, they provided excellent service at a reasonable cost. Highly recommend for quality work and fair pricing!
Please hire the professionals at The Gatekeeper for all of your garage door and gate needs! These folks are terrific! Professional, on-time, courteous and priced right. My technician, Benji was awesome! Not only did he service the garage door opener, but took the time to properly adjust the...
Julie M.
5.0
11/2016
Very well. Edi fixed our door quickly and for a very reasonable price
Daniel K.
5.0
10/2015
Terry came out to estimate the job which I thought I would originally have new sliders put onto my closet door. I thought the old ones were just intentionally heavy doors which made it hard to open. However, Terry said it can be repaired (same with glass sliding patio door) and I would be...
Carolyn B.
5.0
08/2014
David was exceptionally prompt and professional. We had asked him to repair a key lock on our pool gate (in addition to replacing an interior door with a key lock). He advised us that we needed to have work done on securing the fencing first or else the replacement of the bolt would...
We hired Gary/Expert Window and Door Installations to put an accordion door between our living room and dining room and a swinging door from the kitchen into the dining room. There were previously no doors there. He did an excellent job, the doors are high quality and they look great. ...
Charlene G.
5.0
06/2013
When We finished remodeling the driveway at our home we decided to add a an iron gate to make the property more secure. The company that install the gate did not do any low voltage work so we needed to find someone that can add an intercom system so we could control the access into the...
Find Security door installation pros in Northridge
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."
Welcome to B.K. Electric Services Inc, Licensed Los Angeles Electricians. Honest,reliable, professional electricians, where superb customer service, competitive prices and most importantly friendly services is our #1 Priority! We provide Residential, Commercial and Industrial electrical services all over the Los Angeles, Orange County and San Fernando Valley areas. Our company has become a household name around the Los Angeles area. We have built many relationships with our residential customers, celebrities, public figures, small retailers and large department stores. We work closely with DWP, Edison and the Department of Building and safety to ensure that your work is being done up to the city codes. From the estimate to pulling the permits we will handle everything for your electrical project from A-Z. We offer absolutely free estimates always! Additional phone number - (310) 430-2300. Additional DBAs - B K Electric Services, B K Electric Services Inc, BK Electric Service, BK Electric Services. Family owned & operated
"Absolutely amazing work! My new pendant lights look perfect — clean install, super professional, and they completely changed the vibe of my kitchen. Couldn’t recommend more!"
Kelton P on October 2025
Welcome to B.K. Electric Services Inc, Licensed Los Angeles Electricians. Honest,reliable, professional electricians, where superb customer service, competitive prices and most importantly friendly services is our #1 Priority! We provide Residential, Commercial and Industrial electrical services all over the Los Angeles, Orange County and San Fernando Valley areas. Our company has become a household name around the Los Angeles area. We have built many relationships with our residential customers, celebrities, public figures, small retailers and large department stores. We work closely with DWP, Edison and the Department of Building and safety to ensure that your work is being done up to the city codes. From the estimate to pulling the permits we will handle everything for your electrical project from A-Z. We offer absolutely free estimates always! Additional phone number - (310) 430-2300. Additional DBAs - B K Electric Services, B K Electric Services Inc, BK Electric Service, BK Electric Services. Family owned & operated
"Absolutely amazing work! My new pendant lights look perfect — clean install, super professional, and they completely changed the vibe of my kitchen. Couldn’t recommend more!"
Home Automation, Home Theatre Installation, CCTV, Ring, Nest. I have been in Audio/Video for 20+ years. I take pride in all my work, my most important goal is to make sure my customer is happy at the end of the project.
"Amazing! Super easy, efficient and incredible work. Have already recommended to multiple friends."
Nastia L on December 2024
Home Automation, Home Theatre Installation, CCTV, Ring, Nest. I have been in Audio/Video for 20+ years. I take pride in all my work, my most important goal is to make sure my customer is happy at the end of the project.
"Amazing! Super easy, efficient and incredible work. Have already recommended to multiple friends."
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."
Family Owned and Operated Business Specializing in Custom Window Replacement and Installation. For over 20 years, Metropolitan High Performance Windows has been the replacement window and window installation service company for homeowners in Anaheim, Los Angeles, Riverside, San Bernardino, San Diego, and Orange Counties. We offer free estimates with no pricing games, no pressure and the fastest turnaround in the industry. Variety of Window Styles Including Single Hung & Double Hung Windows, Casement Windows, Awning Windows, Picture Windows, Sliding Windows, Geometric Windows, Bay & Bow Windows, Garden Windows. Variety of Patio Door Styles Including Sliding Glass Doors, French Doors, Bi-Fold Doors, Multi-Slide Doors, In-Glass Pet Doors. Financing Available! You may be eligible for a 100% financed, no home equity, no lien, no closing cost, no origination fee, no pre-payment penalty loan. Fico scores as low as 580. Learn about the REEL Program and Other Financing Options by visiting www.mhiwindows.com/window-financing/.
"Great job with high quality products"
Melanie G on May 2024
Family Owned and Operated Business Specializing in Custom Window Replacement and Installation. For over 20 years, Metropolitan High Performance Windows has been the replacement window and window installation service company for homeowners in Anaheim, Los Angeles, Riverside, San Bernardino, San Diego, and Orange Counties. We offer free estimates with no pricing games, no pressure and the fastest turnaround in the industry. Variety of Window Styles Including Single Hung & Double Hung Windows, Casement Windows, Awning Windows, Picture Windows, Sliding Windows, Geometric Windows, Bay & Bow Windows, Garden Windows. Variety of Patio Door Styles Including Sliding Glass Doors, French Doors, Bi-Fold Doors, Multi-Slide Doors, In-Glass Pet Doors. Financing Available! You may be eligible for a 100% financed, no home equity, no lien, no closing cost, no origination fee, no pre-payment penalty loan. Fico scores as low as 580. Learn about the REEL Program and Other Financing Options by visiting www.mhiwindows.com/window-financing/.
- 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
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!
T.S Vision Builders is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"Simon and his workers did an outstanding job rebuilding our deck and adding in gutters which had to be cut into existing downspouts. Very professional, reliable and prompt. Always called the day before the work was done to confirm the next day's arrival times. It was a pleasure using this group."
Ron R on February 2025
T.S Vision Builders is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"Simon and his workers did an outstanding job rebuilding our deck and adding in gutters which had to be cut into existing downspouts. Very professional, reliable and prompt. Always called the day before the work was done to confirm the next day's arrival times. It was a pleasure using this group."
Kevin Konzmann is the the premier electrical service in Somis California. He can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Extremely helpful and the quality and speed of his work was exceptional."
Trevor F on November 2022
Kevin Konzmann is the the premier electrical service in Somis California. He can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"Extremely helpful and the quality and speed of his work was exceptional."
Trevor F on November 2022
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FAQs for security door installation projects in Northridge, 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 an80-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 Northridge, CA homeowners’ guide to security door installation services
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