
Get matched with top security door installation pros in Thornton, CO
There are 18 highly-rated local security door installation pros.
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*The Angi rating for Security Door Installation companies in Thornton, CO 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 Thornton, CO 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 30, 2025
Find Security door installation pros in Thornton
VELUX America
VELUX America
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

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.
"Went well. Will know more later"
Pre P on November 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.
"Went well. Will know more later"
Pre P on November 2025

Modern Dimension Pathways
Modern Dimension Pathways
-Modern Dimension Pathways is a company where innovation and modern design meets living spaces. We are passionate about transforming peoples ordinary living spaces into dream state realities and modern sanctuaries. Our mission is to redefine the way people live and experience their environments by using moderns designs and innovative ideas. (Follow if your interested in Modern architecture, hardscape
"Daniel was absolutely incredible to work with. He was attentive, respectful, and always took the time to listen to my requests, even when I changed my mind a million times. He welcomed my suggestions, communicated clearly, and maintained a professional, positive attitude throughout the entire project. He rebuilt my deck beautifully and installed a brand-new custom fence that exceeded every expectation. He also kept the workspace clean and tidy every day. I couldn’t be happier with his work I highly recommend!"
Caitlin W on November 2025
-Modern Dimension Pathways is a company where innovation and modern design meets living spaces. We are passionate about transforming peoples ordinary living spaces into dream state realities and modern sanctuaries. Our mission is to redefine the way people live and experience their environments by using moderns designs and innovative ideas. (Follow if your interested in Modern architecture, hardscape
"Daniel was absolutely incredible to work with. He was attentive, respectful, and always took the time to listen to my requests, even when I changed my mind a million times. He welcomed my suggestions, communicated clearly, and maintained a professional, positive attitude throughout the entire project. He rebuilt my deck beautifully and installed a brand-new custom fence that exceeded every expectation. He also kept the workspace clean and tidy every day. I couldn’t be happier with his work I highly recommend!"
Caitlin W on November 2025

Modern Tech
Modern Tech
We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.
"Rob did a great job at installing my security system and cameras! Communication was impeccable from day one, and he’s there for all my questions and needs. I highly recommend Rob and Modern Tech for all your security needs "
Nick L on November 2025
We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.
"Rob did a great job at installing my security system and cameras! Communication was impeccable from day one, and he’s there for all my questions and needs. I highly recommend Rob and Modern Tech for all your security needs "
Nick L on November 2025

Deans Design and Remodeling
Deans Design and Remodeling
Deans Design and Remodeling is a trusted name in the construction and contracting industry, specializing in residential and commercial renovations. With a commitment to quality craftsmanship and customer satisfaction, the company offers tailored remodeling solutions that enhance the value, functionality, and aesthetics of every space. Their team combines innovative design expertise with hands-on construction experience, ensuring each project is delivered on time and within budget.
"Kyle and Justin Dean demoed, redesigned, and built 2 decks and a pergola for me. They are professional and provide outstanding quality work. They are knowledgeable and had great design ideas for my projects. Communicated well with me on all work and costs. Highly recommend and will use again."
Leigh R on June 2025
Deans Design and Remodeling is a trusted name in the construction and contracting industry, specializing in residential and commercial renovations. With a commitment to quality craftsmanship and customer satisfaction, the company offers tailored remodeling solutions that enhance the value, functionality, and aesthetics of every space. Their team combines innovative design expertise with hands-on construction experience, ensuring each project is delivered on time and within budget.
"Kyle and Justin Dean demoed, redesigned, and built 2 decks and a pergola for me. They are professional and provide outstanding quality work. They are knowledgeable and had great design ideas for my projects. Communicated well with me on all work and costs. Highly recommend and will use again."
Leigh R on June 2025

Darnell Handyman Services, LLC
Darnell Handyman Services, LLC
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.

Gerald Martin Services
Gerald Martin Services
We are a locally owned and operated company with over 40 years of experience in construction and home improvement. Led by Gerald Martin, a professional with expertise in residential and commercial projects, we specialize in renovations like kitchen and bathroom remodels, along with services such as tile installation, plumbing, drywall, and carpentry. With a focus on quality craftsmanship, safety, and attention to detail, we are committed to delivering results that exceed expectations. Gerald Martin’s experience ensures each project is managed with care, from budgeting and scheduling to maintaining high safety standards. Our track record of successful projects and lasting client relationships speaks for itself. We take pride in delivering the project of your dreams with professionalism and care. The Martin Group is an association of licensed professionals who assist GMS in obtaining permits and working with local, state, and county agencies to ensure proper permitting when necessary.
"Gerald Martin remodeled my basement. He was very professional. He was attentive to detail and made sure that I was happy with everything. I definitely would hire him again."
Coquese R on July 2025
We are a locally owned and operated company with over 40 years of experience in construction and home improvement. Led by Gerald Martin, a professional with expertise in residential and commercial projects, we specialize in renovations like kitchen and bathroom remodels, along with services such as tile installation, plumbing, drywall, and carpentry. With a focus on quality craftsmanship, safety, and attention to detail, we are committed to delivering results that exceed expectations. Gerald Martin’s experience ensures each project is managed with care, from budgeting and scheduling to maintaining high safety standards. Our track record of successful projects and lasting client relationships speaks for itself. We take pride in delivering the project of your dreams with professionalism and care. The Martin Group is an association of licensed professionals who assist GMS in obtaining permits and working with local, state, and county agencies to ensure proper permitting when necessary.
"Gerald Martin remodeled my basement. He was very professional. He was attentive to detail and made sure that I was happy with everything. I definitely would hire him again."
Coquese R on July 2025

Fullerton Handyman Service L.L.C
Fullerton Handyman Service L.L.C
Fullerton Handyman Service is a new handyman service. We specialize in everything that you need fix from light fixtures to plumbing, heating, building kitchen island and even cat walls. There is nothing that we can't fix and help for you. We are a small family own business, we are willing to help with anything . So call us and we will be there.
"Completed the work and hauled away the wood. Reasonable price, I recommend Patrick and his team."
Maria R on October 2025
Fullerton Handyman Service is a new handyman service. We specialize in everything that you need fix from light fixtures to plumbing, heating, building kitchen island and even cat walls. There is nothing that we can't fix and help for you. We are a small family own business, we are willing to help with anything . So call us and we will be there.
"Completed the work and hauled away the wood. Reasonable price, I recommend Patrick and his team."
Maria R on October 2025

Secure It Controls
Secure It Controls
Secure It Controls is Northern Colorado’s trusted provider of professional security solutions for residential and commercial properties. We specialize in access control systems, camera surveillance, burglar alarms, and intercom systems, delivering tailored solutions to meet your unique needs. Our experienced team focuses on quality, reliability, and innovation, ensuring every installation is seamless and effective. From managing access to safeguarding your property, we use the latest technology to provide peace of mind. Trust Secure It Controls to protect what matters most. Contact us today to learn more!
Secure It Controls is Northern Colorado’s trusted provider of professional security solutions for residential and commercial properties. We specialize in access control systems, camera surveillance, burglar alarms, and intercom systems, delivering tailored solutions to meet your unique needs. Our experienced team focuses on quality, reliability, and innovation, ensuring every installation is seamless and effective. From managing access to safeguarding your property, we use the latest technology to provide peace of mind. Trust Secure It Controls to protect what matters most. Contact us today to learn more!

Armor Security Systems, Inc.
Armor Security Systems, Inc.
Armor Security Systems, Inc., is a well-established business in Aurora. When it comes to professionalism and customer service, we are unmatched! For the best of the best call Joe at Armor Security Systems, Inc., for your security analysis. We design, install, and monitor new systems, plus we can monitor most existing alarm systems, through a 24 hour, UL rated Central Station. We specialize in hard-wired and wireless security systems, which do not require a land phone line for monitoring service. Our upgraded systems can also be accessed remotely via your smart phone tablet or computer. Our trained technicians and office personnel are available to help you if you have any questions with your alarm, access control, CCTV or intercom system. We invite you to discover the Armor Security Systems difference, for your commercial security needs. Personalized service is our specialty! Monitoring - $45 per month Com Design Fee - $90/h Resi Design Fee - $60/h Fees waived if job is booked
Armor Security Systems, Inc., is a well-established business in Aurora. When it comes to professionalism and customer service, we are unmatched! For the best of the best call Joe at Armor Security Systems, Inc., for your security analysis. We design, install, and monitor new systems, plus we can monitor most existing alarm systems, through a 24 hour, UL rated Central Station. We specialize in hard-wired and wireless security systems, which do not require a land phone line for monitoring service. Our upgraded systems can also be accessed remotely via your smart phone tablet or computer. Our trained technicians and office personnel are available to help you if you have any questions with your alarm, access control, CCTV or intercom system. We invite you to discover the Armor Security Systems difference, for your commercial security needs. Personalized service is our specialty! Monitoring - $45 per month Com Design Fee - $90/h Resi Design Fee - $60/h Fees waived if job is booked
The Thornton, CO homeowners’ guide to security door installation services
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"






