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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon81
    Verified home security system services reviews

Find Home security system pros in Windsor Mill

Avatar for ADT

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro

ADT

3750 Priority Way South Dr
4.52(
727
)
Approved Pro
Customers say: Terrific value
3684 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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 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.

"The alarm, when it goes off, is very loud!!! This is a good thing. If we ever need to activate it, it will definitely scare off anyone trying to come into our home. We can set it off from our phone or from the keyboard control panel that we installed in our bedroom. We feel very safe with this purchase."

Chris L on September 2025


Avatar for Ultra Guard Security Systems

Ultra Guard Security Systems

7600-A Lindbergh Drive
4.90(
165
)
Approved Pro

Ultra Guard Security Systems

7600-A Lindbergh Drive
4.90(
165
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
133 local quotes requested

We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.

"They are very responsive, timely and fixed my problems. They work with us on an annual basis."

JANE P on March 2023

We are a local boutique security company in Gaithersburg, MD. We offer solutions from residential smart homes to full commercial operations. Personal service, expert design and installation, and cutting edge technology are our strengths.

"They are very responsive, timely and fixed my problems. They work with us on an annual basis."

JANE P on March 2023


Avatar for SafeStreets - ADT Authorized Provider

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro

SafeStreets - ADT Authorized Provider

615 N 150 E
4.88(
289
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
89 local quotes requested

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’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 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’ve had nothing but problems with SafeStreets. The installation was a mess—took hours longer than promised, and the technician seemed clueless about the system. When I called customer service, they were rude and unhelpful. The security system itself is glitchy and keeps going offline. Definitely not worth the hassle."

Gino F on September 2025


Avatar for J A Electric LLC.

J A Electric LLC.

4.82(
34
)
Approved Pro

J A Electric LLC.

4.82(
34
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
142 local quotes requested

10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net

"I needed several plugs fixed/moved, a baseboard heater re-connected and a stairwell light hung properly and they took care of all of it fast and for a great price. I would definitely hire them again!"

Cheryl R on September 2025

10 Years Of Experience. Provides Exceptional & Guaranteed Residential Work. Put Clients Needs First Before Anything. www.jaelectricllc.net

"I needed several plugs fixed/moved, a baseboard heater re-connected and a stairwell light hung properly and they took care of all of it fast and for a great price. I would definitely hire them again!"

Cheryl R on September 2025


Avatar for VIP Telecommunications LLC

VIP Telecommunications LLC

8019 Ferndale St
4.45(
66
)
Approved Pro

VIP Telecommunications LLC

8019 Ferndale St
4.45(
66
)
Approved Pro
Customers say: Super punctual
258 local quotes requested
31 years of experience

Serving the east cost since 2009, Vip Telecom, LLC is that rare choice in a business where you not only receive professional acumen but much more. We provide superb craftsmanship, dedication to customer satisfaction, and all the skills utilized to cater to your needs expertly. Vip Telecom, LLC has proven, trained, background-checked workers working under its banner. We are on time, on a budget, and we’re perfectionists! All of our work is guaranteed to achieve 100% customer satisfaction. Call us now if you need our antenna installation, TV mounting, and cord cutting services in east cost states PA, NJ, NY, DE, MD, WV, VA, NC and SC. We cut right through difficulties. Call us toll-free at 1-855-KORDKUT Antenna installations , flat TV mounting , & custom wiring -security camera installation.

"Great same day installation and follow-up tech support. Patrick worked with me over the phone to troubleshoot a reception issue. The issue was not with the install but with a piece of hardware we were using to distribute the OTA signal wirelessly. Even though Patrick knew it wasn't an antenna issue he took the time to walk through a diagnosis with me."

Ray D on August 2025

Serving the east cost since 2009, Vip Telecom, LLC is that rare choice in a business where you not only receive professional acumen but much more. We provide superb craftsmanship, dedication to customer satisfaction, and all the skills utilized to cater to your needs expertly. Vip Telecom, LLC has proven, trained, background-checked workers working under its banner. We are on time, on a budget, and we’re perfectionists! All of our work is guaranteed to achieve 100% customer satisfaction. Call us now if you need our antenna installation, TV mounting, and cord cutting services in east cost states PA, NJ, NY, DE, MD, WV, VA, NC and SC. We cut right through difficulties. Call us toll-free at 1-855-KORDKUT Antenna installations , flat TV mounting , & custom wiring -security camera installation.

"Great same day installation and follow-up tech support. Patrick worked with me over the phone to troubleshoot a reception issue. The issue was not with the install but with a piece of hardware we were using to distribute the OTA signal wirelessly. Even though Patrick knew it wasn't an antenna issue he took the time to walk through a diagnosis with me."

Ray D on August 2025


Avatar for TomsBurg Surveillance

TomsBurg Surveillance

3298 Sudlersville S
5.00(
20
)
Approved Pro

TomsBurg Surveillance

3298 Sudlersville S
5.00(
20
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Tomsburg is a cutting-edge surveillance technology that meet the needs of both commercial and residential customers. We stive to provide security that pass on to you, the customer, the very best services that renders the peace of mind you desire while away or at home. We service the Maryland, Virginia, Delaware, and Pennsylvania area with high resolution CCTV surveillance cameras that detect any form of intrusion.

"Very professional and efficient installation of 8 new IP cameras and new NVR at my home. I provided all the cameras and NVR. Thomas was very knowledgable and assisted me with setting up the camera motion zones and the LTSmonitoring app on my iPhone. He ran HDMI to my 4k tv so I can view the cameras. Will plan to use again and recommend to friends."

James P on October 2022

Tomsburg is a cutting-edge surveillance technology that meet the needs of both commercial and residential customers. We stive to provide security that pass on to you, the customer, the very best services that renders the peace of mind you desire while away or at home. We service the Maryland, Virginia, Delaware, and Pennsylvania area with high resolution CCTV surveillance cameras that detect any form of intrusion.

"Very professional and efficient installation of 8 new IP cameras and new NVR at my home. I provided all the cameras and NVR. Thomas was very knowledgable and assisted me with setting up the camera motion zones and the LTSmonitoring app on my iPhone. He ran HDMI to my 4k tv so I can view the cameras. Will plan to use again and recommend to friends."

James P on October 2022


Jacks of All Trades

3536 Milford Mill Road
5.00(
1
)
Approved Pro

Jacks of All Trades

3536 Milford Mill Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We're a locally owned and operated company with over 25 years of industry experience. We hold a high value in honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We also specialize in handyman/carpentry work in the commercial as well as residential fields and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. Any problem you have, we know we can solve it. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very Good Customer Service"

Rodney D on September 2021

We're a locally owned and operated company with over 25 years of industry experience. We hold a high value in honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We also specialize in handyman/carpentry work in the commercial as well as residential fields and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. Any problem you have, we know we can solve it. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Very Good Customer Service"

Rodney D on September 2021


Avatar for Level 3 Tech

Level 3 Tech

1629 K Street, Suite 300
5.00(
5
)
Approved Pro

Level 3 Tech

1629 K Street, Suite 300
5.00(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

"GOT THE JOB DONE VERY WELL."

MILTON E on July 2021

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

"GOT THE JOB DONE VERY WELL."

MILTON E on July 2021


Marvelouz Teknology

4625 Asbury Avenue
4.91(
22
)
Approved Pro

Marvelouz Teknology

4625 Asbury Avenue
4.91(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

Marvelouz Teknology 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. https://www.marvelouzteknology.com

"Very happy with my camera system"

Joe R on January 2022

Marvelouz Teknology 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. https://www.marvelouzteknology.com

"Very happy with my camera system"

Joe R on January 2022


Avatar for Secure Systems

Secure Systems

2729 Cedarhurst Road
New on AngiNew on Angi
Approved Pro

Secure Systems

2729 Cedarhurst Road
New on AngiNew on Angi
Approved Pro
25 years of experience
Free onsite estimate

We offer over 19 years experience in the security services industry. We have established a solid reputation in security projects for commercial businesses of all sizes. We are committed to providing a personalized service for each individual project. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Secure Systems does not provide any residential security services. Contact us today for a free estimate for your business security solution.

We offer over 19 years experience in the security services industry. We have established a solid reputation in security projects for commercial businesses of all sizes. We are committed to providing a personalized service for each individual project. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Secure Systems does not provide any residential security services. Contact us today for a free estimate for your business security solution.

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Home Security Systems questions, answered by experts

In general, keyless door locks are considered safe. They can’t be picked like a traditional lock, and unless a thief can guess your code, it’s pretty tricky to break into a house with a keyless door lock. But that doesn’t mean they come without risk. 

When asking yourself, "Are keyless door locks safe?” consider the style of the system. Hackers could potentially break in if it operates on Wi-Fi, but it’d take some time and effort. You’re also at risk for a power outage, depending on the type of lock. That being said, there are no more risks associated with keyless door locks than a traditional lock.

Costs depend on issue complexity, labor, replacement parts, and system age.

Although some pet doors allow easier access for burglars or stray animals, there are ways to make pet doors more secure. To increase your home’s security, choose locking or electronically activated doors, use additional motion sensor security cameras, and install pet doors on a wall where door locking mechanisms are difficult to access.

Instead of a security door, you might opt for a heavy-duty screen door made from durable mesh, which allows better sunlight and airflow. Additionally, you could enhance security by installing strong locks on your existing door. A double-cylinder deadbolt provides robust security; however, be aware that some local laws prohibit them due to safety concerns during emergencies.

A security camera company will be able to advise you on where to position the cameras, ensure all of the equipment is set up properly, and do all of the installations. They’ll take factors into consideration that a non-professional might not automatically consider, like obstacles that could block a potential trespasser from the camera or how lighting may obstruct the view.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Windsor Mill, MD homeowners’ guide to home security system services

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