Top-rated security door installation pros.

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There are 22 highly-rated local security door installation pros.

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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon142
    Verified security door installation services reviews

Find Security door installation pros in Old Greenwich

Avatar for ADT

ADT

3750 Priority Way South Dr
4.53(
735
)
Approved Pro

ADT

3750 Priority Way South Dr
4.53(
735
)
Approved Pro
Super Service Award
Customers say: Terrific value
3867 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.

"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


VELUX America

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro

VELUX America

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro
579 local quotes requested

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.


"Fast good price clean"

Jason H on September 2024

Tri-State is the manufacturer and installer of premium quality vinyl windows and patio doors. We do the entire job ourselves, no subcontractor or middleman! Tri-State builds them, installs them and we guarantee them.

"Fast good price clean"

Jason H on September 2024


Avatar for Highland Window & Siding Company LLC

Highland Window & Siding Company LLC

998 Farmington Avenue
4.85(
154
)
Approved Pro

Highland Window & Siding Company LLC

998 Farmington Avenue
4.85(
154
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
108 local quotes requested

As a multi-year Super Service Award winner, Highland Window Company LLC is a family owned and operated business with over 18 years of industry experience. Our owner, Marc Cowan, will come to your home to deliver your exact written quote in 30 minutes. NO high pressure sales tactics and NO sales people working for high commissions. It is our goal to build a relationship with our clients that will last a lifetime. What sets us apart from our competitors is our dedication to put our customers first. All of our high quality, energy star rated products are covered by a lifetime transferable warranty. Our highly trained installers work only for Highland and have been working with Highland for over 10 years. That means that every review you read on Angie’s List was installed by the same team. The same team that will carry out your installation. Angie’s List members should feel confident about hiring Highland for all window, siding and roofing needs. We guarantee that we will take the stress out of home improvement!

"We have had many home renovation projects done over the past two years. Marc and his team replaced most of our windows about 6 months ago. Of all the services we had done, I would put Marc & Highland Windows at the top of the list. Great product, great value, very responsive, very professional. We shopped around plenty before deciding on Highland, and we very happy we went with them."

Eric S on September 2022

As a multi-year Super Service Award winner, Highland Window Company LLC is a family owned and operated business with over 18 years of industry experience. Our owner, Marc Cowan, will come to your home to deliver your exact written quote in 30 minutes. NO high pressure sales tactics and NO sales people working for high commissions. It is our goal to build a relationship with our clients that will last a lifetime. What sets us apart from our competitors is our dedication to put our customers first. All of our high quality, energy star rated products are covered by a lifetime transferable warranty. Our highly trained installers work only for Highland and have been working with Highland for over 10 years. That means that every review you read on Angie’s List was installed by the same team. The same team that will carry out your installation. Angie’s List members should feel confident about hiring Highland for all window, siding and roofing needs. We guarantee that we will take the stress out of home improvement!

"We have had many home renovation projects done over the past two years. Marc and his team replaced most of our windows about 6 months ago. Of all the services we had done, I would put Marc & Highland Windows at the top of the list. Great product, great value, very responsive, very professional. We shopped around plenty before deciding on Highland, and we very happy we went with them."

Eric S on September 2022


Avatar for Power Home Remodeling

Power Home Remodeling

60 Commerce Dr
4.67(
363
)
Approved Pro

Power Home Remodeling

60 Commerce Dr
4.67(
363
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
176 local quotes requested

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"I knew they were good, but they are beyond excellant! Instalation was phenomanal and pella product are some of the best windows in the country!"

Dan M on October 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"I knew they were good, but they are beyond excellant! Instalation was phenomanal and pella product are some of the best windows in the country!"

Dan M on October 2025


Fusion Tech Solutions

1040 1st Ave
5.00(
5
)
Approved Pro

Fusion Tech Solutions

1040 1st Ave
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
322 local quotes requested

Fusion Tech Solutions is a dedicated and highly skilled company serving the IT needs of over 300 business and residential clients in the New York City, Westchester and Connecticut area, and growing every day. We pride ourselves on knowing everything about your technology and advising you on how you can get the most out of it to improve both your personal and business productivity. We make it a priority to provide our clients with flawless service, perfect results and absolute reliability. We go that extra mile to make any project you entrust us with a stress free, smooth process with a friendly point of contact keeping you updated from start to completion. Our business is to know your business. We provide you with the answers you need, advise you on cost and process, and plan your project for optimum results to ensure your technology is being the most effective and efficient it can be. At 411 Tech Solutions, we cater to the home user, entrepreneur and to the small business owner. We won't try to impress you with all the techno-babble. We'll just listen to your needs and tell you in plain English what needs to be done. And then we'll be available 24/7 just in case you need us. Our business is to know your business and keep it running smoothly.

"Joe and his team of electricians led by Paul were amazing to work with! Very professional, on-time, and fair pricing estimates for electrical work I needed in my condo, including moving the position of a ceiling light and setting up two new sconces, both of which required patching up the drywall afterwards and they made it look seamless. Joe really values quality work and made sure to check in throughout the job and afterwards to make sure I was satisfied, answering any questions I had. They offer a ton of handyman services and I will be booking them for future tv mounting needs as well."

Duaa E on December 2024

Fusion Tech Solutions is a dedicated and highly skilled company serving the IT needs of over 300 business and residential clients in the New York City, Westchester and Connecticut area, and growing every day. We pride ourselves on knowing everything about your technology and advising you on how you can get the most out of it to improve both your personal and business productivity. We make it a priority to provide our clients with flawless service, perfect results and absolute reliability. We go that extra mile to make any project you entrust us with a stress free, smooth process with a friendly point of contact keeping you updated from start to completion. Our business is to know your business. We provide you with the answers you need, advise you on cost and process, and plan your project for optimum results to ensure your technology is being the most effective and efficient it can be. At 411 Tech Solutions, we cater to the home user, entrepreneur and to the small business owner. We won't try to impress you with all the techno-babble. We'll just listen to your needs and tell you in plain English what needs to be done. And then we'll be available 24/7 just in case you need us. Our business is to know your business and keep it running smoothly.

"Joe and his team of electricians led by Paul were amazing to work with! Very professional, on-time, and fair pricing estimates for electrical work I needed in my condo, including moving the position of a ceiling light and setting up two new sconces, both of which required patching up the drywall afterwards and they made it look seamless. Joe really values quality work and made sure to check in throughout the job and afterwards to make sure I was satisfied, answering any questions I had. They offer a ton of handyman services and I will be booking them for future tv mounting needs as well."

Duaa E on December 2024


"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


Avatar for BHI Builder & Home Improvement LLC

BHI Builder & Home Improvement LLC

194 West Avenue Apt 4
5.00(
1
)
Approved Pro

BHI Builder & Home Improvement LLC

194 West Avenue Apt 4
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Builder Home Improvement LLC 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. 20 years of accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They were great, quick and creative."

Gustavo X on July 2022

Builder Home Improvement LLC 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. 20 years of accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They were great, quick and creative."

Gustavo X on July 2022


Avatar for Castle - The Window People

Castle - The Window People

109 Gaither Drive, Unit 309
4.17(
948
)
Approved Pro

Castle - The Window People

109 Gaither Drive, Unit 309
4.17(
948
)
Approved Pro
Customers say: Quality work
127 local quotes requested
34 years of experience

Are you looking for the very best replacement window money can buy? You've found it with Castle Windows! Replacing your home's windows with high-performance Castle Windows is one of the wisest home improvement investments you'll ever make. Castle Windows is dedicated to saving you time, money and frustration. You can trust your custom-made windows from Castle Windows. Committed to producing the best product possible, Castle Windows confidently stands behind our work with a lifetime limited warranty to protect your window investment. For over 30 years Castle Windows has been designing windows to fit your world. We offer a wide selection of top quality, custom-made windows to fit your home because we know you appreciate variety, expect quality and demand affordability. We are able to make a window to almost any specification including multiple colors, grid patterns or application without sacrificing quality or warranty. Call us today for your free estimate!

"."

Dorothy B on July 2024

Are you looking for the very best replacement window money can buy? You've found it with Castle Windows! Replacing your home's windows with high-performance Castle Windows is one of the wisest home improvement investments you'll ever make. Castle Windows is dedicated to saving you time, money and frustration. You can trust your custom-made windows from Castle Windows. Committed to producing the best product possible, Castle Windows confidently stands behind our work with a lifetime limited warranty to protect your window investment. For over 30 years Castle Windows has been designing windows to fit your world. We offer a wide selection of top quality, custom-made windows to fit your home because we know you appreciate variety, expect quality and demand affordability. We are able to make a window to almost any specification including multiple colors, grid patterns or application without sacrificing quality or warranty. Call us today for your free estimate!

"."

Dorothy B on July 2024


Avatar for J&I Home Improvement, LLC

J&I Home Improvement, LLC

224 Mortimer St.
4.97(
36
)
Approved Pro

J&I Home Improvement, LLC

224 Mortimer St.
4.97(
36
)
Approved Pro
Customers say: True professional
12 local quotes requested
4 years of experience

We are a locally owned and operated company that values honesty and integrity and treads your home as if it were our own. We offer remodeling 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!

"Juan Carlos & his team were absolute pro’s. Such a pleasure working with him throughout the process. From the moment he reached out, I knew he was the guy. Detailed, on-time, no nonsense, timely communication and the best price around. AND most important — OUTSTANDING work. The best overall experience I’ve had with a contractor hands down. I cannot recommend J & I Home Improvement with more conviction — and fast enough."

Robbie B on August 2025

We are a locally owned and operated company that values honesty and integrity and treads your home as if it were our own. We offer remodeling 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!

"Juan Carlos & his team were absolute pro’s. Such a pleasure working with him throughout the process. From the moment he reached out, I knew he was the guy. Detailed, on-time, no nonsense, timely communication and the best price around. AND most important — OUTSTANDING work. The best overall experience I’ve had with a contractor hands down. I cannot recommend J & I Home Improvement with more conviction — and fast enough."

Robbie B on August 2025

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Security Doors questions, answered by experts

Wood, steel, and fiberglass are common choices that offer durability and style.

French doors can seal better, so a good quality, well-insulated French door will be more energy efficient than the best insulated sliding door. That’s because there’s no way to totally seal a sliding door and still allow it to slide past the jamb effectively.

If a wooden door swells from temporary humidity or moisture, it should return to its original size as the environment dries out. However, if the door remains swollen due to prolonged exposure to moisture or water damage, it may not fully revert to its original shape and could require repairs or replacement. Using a dehumidifier and ensuring your doorway has good ventilation can help prevent and reduce swelling in wooden doors.

The average sliding glass door lasts about 30 years, depending on how often you use it and whether you keep up with maintaining the sliding components. If you're beyond the point of basic repairs, it may be better to replace the whole sliding glass door instead of just the glass itself.

Outswing doors are more popular for exterior doors as they offer more room for moving items in and out of a home. And because the hinges are on the outside of the door, they’re more secure against potential break-ins. But, outswing doors are more susceptible to the elements and are more expensive. Comparing inswing vs. outswing doors depends on your budget, needs, and overall preference.

The Old Greenwich, CT homeowners’ guide to security door installation services

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

What do you need done? We’ll find top pros.
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