This was our third experience with Homerite and they did their usual amazing job. Previously we hired the company to replace a French door (with a modern sliding glass door) and subsequently had them install new windows. I wouldn't go anywhere else for windows and doors. The quality of the...

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There are 8 highly-rated local security door installation pros.
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TRUSTED BY WILLIAMSPORT, MD HOMEOWNERS
4.5
Average homeowner rating61
Verified security door installation services reviews
Verified Reviews for Security Door Installation pros in Williamsport, MD
Last update on October 13, 2025
- Bob J.
- Mark S.
Freedom Garage Door quoted a great price and did a quick turn around. I was very pleased with the quality of work as well as the customer support.
- Lisa N.
From the beginning it was very evident that Window World operated on a professional level. The crew of three that was sent for the installation continued to carry on with professionalism, knowledge, attention to detail and pride in a job well done. They were considerate of the outside temps...
- Michael W.
Our job was very small and other contractors didn't want to work with such a small project. Seth had no problem with the size and gave us excellent customer service. His workers who installed our doors were very professional and got the installation done quickly. We certainly intend to us...
- Daniel S.
Outstanding from start to finish. While I shopped around for someone to do the work, Fred was the only one who wanted to see the areas to be fixed before giving me an estimate. Most of the other companies responded with "We do those all the time. No need to come out to the house". He was...
- Eric P.
Unbelievable! Fast, and the doors look and work great. Could not be happier.
Find Security door installation pros in Williamsport

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

Unicorp Home Energy Services
Unicorp Home Energy Services
Since 1987 UNICORP Home Energy Services has made window, siding and roofing projects a worry free experience for over 23,000 homeowners in MD, VA and Washington D.C. We are proud of our flawless record with the Better Business Bureau because customer satisfaction is our number one priority. Our past partnerships with Price Club (Costco) and more recently Pepco Energy Services are a clear indication that we understand the importance of providing substantial savings and value on all our energy saving products. ---- At UNICORP we don't believe in hard-sell tactics, and never make cold calls that interrupt you at meal time. We understand the importance of making the right decision without headache or high pressure. That's why more customers refer us to their friends and family than any other window and siding company. Not surprising when dealing with professionals that care about their customers and love what they do. ---- We thank you for visiting our profile and look forward to improving the quality, enjoyment and energy efficiency of your home. ---- Additional phone - (703) 462-6100. Additional fax - (877) 867-3726. Award winning. Additional DBA - Vinyl Technologies Energy Service. Additional contact name- Brian Weil. Additional email - [email protected].
"We hired Unicorp to replace all our windows, doors, and siding—and the result has been an amazing transformation of the entire house. Not only was the work done to perfection, but the people we dealt with at every stage made the whole experience a pleasure. From the start, our sales rep Alex was informative and responsive, answering all our questions over several weeks—so that by the time we signed the contract, we were totally comfortable with the project design, and knew what to expect when work began. Paul was in charge of the window and door installation. He and his crew finished all the work in just two days, and kept the work areas clean as well. Everyone was friendly and courteous, and Paul himself was an unforgettable character. Window replacement can be an overwhelming job, since it involves every room in the house, but Paul made it fun with entertaining conversation. And he was an artist with the trim capping, making sure to match the style of our colonial house so that the windows would have definition instead of appearing flat. The windows and doors themselves are top-of-the-line quality. They instantly modernized the house, and because of the improved energy efficiency, our AC is able to maintain the house temperature so much better in the blazing hot summer. JR was in charge of the siding job and other finishing touches. His crew, Nam and Augustine, were incredibly talented and hardworking (even after driving four hours to our house each morning)! They completed the siding on our addition in just one day. The end result is stunning, and the insulated vinyl siding has made the addition much quieter and more comfortable. JR came up with creative solutions, like figuring out how to design the columns and header so that they’d fit in the tight spaces around our door. And he was always easy to reach by phone or text. There were a few issues with the materials delivered for the shutters and the door surround, which caused some delays toward the very end of the project. But JR was committed to making everything perfect, and he came back himself to do the final installation and painting. This was the largest renovation project we’ve ever undertaken, and Unicorp made it such a positive experience. We couldn’t be happier with our “new” house, and we look forward to calling them again, when it’s time for us to get a new roof!"
Michael P on October 2023
Since 1987 UNICORP Home Energy Services has made window, siding and roofing projects a worry free experience for over 23,000 homeowners in MD, VA and Washington D.C. We are proud of our flawless record with the Better Business Bureau because customer satisfaction is our number one priority. Our past partnerships with Price Club (Costco) and more recently Pepco Energy Services are a clear indication that we understand the importance of providing substantial savings and value on all our energy saving products. ---- At UNICORP we don't believe in hard-sell tactics, and never make cold calls that interrupt you at meal time. We understand the importance of making the right decision without headache or high pressure. That's why more customers refer us to their friends and family than any other window and siding company. Not surprising when dealing with professionals that care about their customers and love what they do. ---- We thank you for visiting our profile and look forward to improving the quality, enjoyment and energy efficiency of your home. ---- Additional phone - (703) 462-6100. Additional fax - (877) 867-3726. Award winning. Additional DBA - Vinyl Technologies Energy Service. Additional contact name- Brian Weil. Additional email - [email protected].
"We hired Unicorp to replace all our windows, doors, and siding—and the result has been an amazing transformation of the entire house. Not only was the work done to perfection, but the people we dealt with at every stage made the whole experience a pleasure. From the start, our sales rep Alex was informative and responsive, answering all our questions over several weeks—so that by the time we signed the contract, we were totally comfortable with the project design, and knew what to expect when work began. Paul was in charge of the window and door installation. He and his crew finished all the work in just two days, and kept the work areas clean as well. Everyone was friendly and courteous, and Paul himself was an unforgettable character. Window replacement can be an overwhelming job, since it involves every room in the house, but Paul made it fun with entertaining conversation. And he was an artist with the trim capping, making sure to match the style of our colonial house so that the windows would have definition instead of appearing flat. The windows and doors themselves are top-of-the-line quality. They instantly modernized the house, and because of the improved energy efficiency, our AC is able to maintain the house temperature so much better in the blazing hot summer. JR was in charge of the siding job and other finishing touches. His crew, Nam and Augustine, were incredibly talented and hardworking (even after driving four hours to our house each morning)! They completed the siding on our addition in just one day. The end result is stunning, and the insulated vinyl siding has made the addition much quieter and more comfortable. JR came up with creative solutions, like figuring out how to design the columns and header so that they’d fit in the tight spaces around our door. And he was always easy to reach by phone or text. There were a few issues with the materials delivered for the shutters and the door surround, which caused some delays toward the very end of the project. But JR was committed to making everything perfect, and he came back himself to do the final installation and painting. This was the largest renovation project we’ve ever undertaken, and Unicorp made it such a positive experience. We couldn’t be happier with our “new” house, and we look forward to calling them again, when it’s time for us to get a new roof!"
Michael P on October 2023
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.

Aspen Home Improvements
Aspen Home Improvements
Looking for a family-owned company with quality products and lifetime warranties? You have found us here at Aspen Home Improvements. Contact us today for information on window replacement!
"I am still waiting for the return of my deposit as it has been a week since I put this review on hold after putting in the notice that day 24 June of cancellation by email and next day mail. As I have said before I am a disabled Vet, Senior citizen with health problems. I have copies of the emails that I sent on the days of 06/24/2023 and by next day Mail on the 27th notarized copies of the cancellation. Tried calling but went to voice mail. No work has been done so a rating cannot be done on the work, only the price. This job was way overpriced and never got the chance to compare. The salesman was a good person but I have my family doing it for thousands less."
Daniel S on July 2023
Looking for a family-owned company with quality products and lifetime warranties? You have found us here at Aspen Home Improvements. Contact us today for information on window replacement!
"I am still waiting for the return of my deposit as it has been a week since I put this review on hold after putting in the notice that day 24 June of cancellation by email and next day mail. As I have said before I am a disabled Vet, Senior citizen with health problems. I have copies of the emails that I sent on the days of 06/24/2023 and by next day Mail on the 27th notarized copies of the cancellation. Tried calling but went to voice mail. No work has been done so a rating cannot be done on the work, only the price. This job was way overpriced and never got the chance to compare. The salesman was a good person but I have my family doing it for thousands less."
Daniel S on July 2023

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
West Shore Home Mechanicsburg
West Shore Home Mechanicsburg
West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in window, entry door, shower and bath replacements, including walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.
West Shore Home offers a risk-free home improvement experience, so you never have to worry that you are sacrificing on quality, convenience, or expertise. We specialize in window, entry door, shower and bath replacements, including walk-in tubs. We offer fully customizable, limited lifetime-guaranteed solutions installed in as little as one-day. All of our installers are in-house employees, so we can guarantee the quality of the whole project from start to finish. We get it done the way you want - fast, easy, smart and right. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

Renewal by Andersen
Renewal by Andersen
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025

En Motion Security Solutions
En Motion Security Solutions
En Motion Security Solutions is committed to excellence 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 customers interests, and make their concerns the basis of our business.
"Friendly, efficient installation. Got done early, answered all our questions. Would use them again."
Dennis B on April 2020
En Motion Security Solutions is committed to excellence 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 customers interests, and make their concerns the basis of our business.
"Friendly, efficient installation. Got done early, answered all our questions. Would use them again."
Dennis B on April 2020
Door Tech, Inc.
Door Tech, Inc.
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.
One Source Systems
One Source Systems
Welcome to One Source Systems, where expertise meets excellence in electrical services. With a robust presence spanning over a decade, our team boasts a collective experience of over 30 years, dedicated to serving the dynamic needs of the greater DC metro suburbs. Comprising two master electricians and a committed support team of 10 professionals, we extend our services across DC, Maryland, and Virginia, catering to both residential and commercial clients alike. At One Source Systems, we specialize in: Comprehensive electrical installation and repair services Car charger installations Whole home power surge protection Generator installations Indoor and outdoor lighting and fan fixture solutions Outlet and panel work Heavy-ups And much more. With a steadfast commitment to quality and customer satisfaction, we stand ready to power your projects and exceed your expectations every step of the way.
Welcome to One Source Systems, where expertise meets excellence in electrical services. With a robust presence spanning over a decade, our team boasts a collective experience of over 30 years, dedicated to serving the dynamic needs of the greater DC metro suburbs. Comprising two master electricians and a committed support team of 10 professionals, we extend our services across DC, Maryland, and Virginia, catering to both residential and commercial clients alike. At One Source Systems, we specialize in: Comprehensive electrical installation and repair services Car charger installations Whole home power surge protection Generator installations Indoor and outdoor lighting and fan fixture solutions Outlet and panel work Heavy-ups And much more. With a steadfast commitment to quality and customer satisfaction, we stand ready to power your projects and exceed your expectations every step of the way.
FAQs for security door installation projects in Williamsport, MD
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 Williamsport, MD homeowners’ guide to security door installation services
From average costs to expert advice, get all the answers you need to get your job done.
Screen door installation costs depend on size, type of frame material, and the number of doors. Here’s everything you need to know.
French doors upgrade your space and fill it with natural light. Use this guide so that you can accurately budget the cost to install French doors.
Welcome home! How much does exterior door installation cost when it's time to add a new entryway to your front or back porch? Let's take a look.
Trying to decide between fiberglass and steel doors? Explore the differences before choosing the best one for your home.
If you need help choosing a new entry door, this list of pros and cons of fiberglass doors will let you see if one of the most popular door options is right for you.
Prehung doors make installation a breeze, especially for doors that need added security. Use this DIY guide to learn how to install an exterior door with ease.
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