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Alarm or security system installers in Westminster

Avatar for NWT Surveillance Group
NWT Surveillance Group
1301 York Rd Ste 800
4.10(
5
)
Approved Pro
NWT Surveillance Group
1301 York Rd Ste 800
4.10(
5
)
Approved Pro
Customers say: Quick response
10 years of experience
Free onsite estimate

We do not install products that have not been purchased from us. With over 10 years experience in the security services industry. We have established a solid reputation in security projects for residential homes in the Baltimore and surrounding areas. We have been featured on Channel 2 news and have a lot of community involvement. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"NWT was exactly what we needed. Our location was is a 120year old church, granite exterior, with both interior and exterior architectural restrictions that the normal installers I contacted did not want to proceed with. NWT has a great Facebook page that shows their previous work sites and that convinced me that they were the right contractor for us. NWT was not only able to provide us with the system we needed, but was able to do so within our budget restrictions. The crew was great to work with and their professionalism gave us the fit and finish I was looking for. If I had any questions or changes, they were only a phone call away. Their software specialist trained out staff in the operation of the multi-facetted system and is a call away if needed."

Doug T on February 2023

We do not install products that have not been purchased from us. With over 10 years experience in the security services industry. We have established a solid reputation in security projects for residential homes in the Baltimore and surrounding areas. We have been featured on Channel 2 news and have a lot of community involvement. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"NWT was exactly what we needed. Our location was is a 120year old church, granite exterior, with both interior and exterior architectural restrictions that the normal installers I contacted did not want to proceed with. NWT has a great Facebook page that shows their previous work sites and that convinced me that they were the right contractor for us. NWT was not only able to provide us with the system we needed, but was able to do so within our budget restrictions. The crew was great to work with and their professionalism gave us the fit and finish I was looking for. If I had any questions or changes, they were only a phone call away. Their software specialist trained out staff in the operation of the multi-facetted system and is a call away if needed."

Doug T on February 2023


Avatar for ADT
ADT
3750 Priority Way South Dr
4.52(
710
)
Approved Pro
ADT
3750 Priority Way South Dr
4.52(
710
)
Approved Pro
Customers say: Terrific value
5210 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.

"Great service by ADT! Integrated with Google. Officially have a smart home!"

Natalie N on April 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.

"Great service by ADT! Integrated with Google. Officially have a smart home!"

Natalie N on April 2025


Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
615 N 150 E
4.89(
287
)
Approved Pro
SafeStreets - ADT Authorized Provider
615 N 150 E
4.89(
287
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
4632 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

"SafeStreets security system is incredibly reliable and easy to use. The app is intuitive, and the home automation features are a game-changer. I love being able to monitor my home from anywhere. Great service all around."

Paula S on March 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

"SafeStreets security system is incredibly reliable and easy to use. The app is intuitive, and the home automation features are a game-changer. I love being able to monitor my home from anywhere. Great service all around."

Paula S on March 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
239 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 Presidential Exteriors LLC
Presidential Exteriors LLC
2301 Research Blvd
4.71(
154
)
Approved Pro
Presidential Exteriors LLC
2301 Research Blvd
4.71(
154
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
4897 local quotes requested

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I thought Presidential did a good job replacing my roof. I thought the pricing was fair and the job was done from first contact with the company to finish in ~1 month. I would use them for home repair services again."

Nicholas K on May 2025

Licensed in MD, DC and VA, Presidential Exteriors is your one stop solution for any exterior remodeling needs. Our award winning products and experienced installers will ensure that your home is a Presidential Home. We look forward to showing you how our customer centric approach and commitment to communication guarantees satisfaction the first time, every time.

"I thought Presidential did a good job replacing my roof. I thought the pricing was fair and the job was done from first contact with the company to finish in ~1 month. I would use them for home repair services again."

Nicholas K on May 2025


Avatar for J A Electric LLC.
J A Electric LLC.
4.80(
30
)
Approved Pro
J A Electric LLC.
4.80(
30
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1523 local quotes requested

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

"Excellent, JA Electric arrived at the schedule time, kept me informed of progress during the project, cleaned up area, personally walked me through the finish job, and tested each outlet and GFI. I am very satisfied with the job and with JA Electric services"

David R on May 2025

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

"Excellent, JA Electric arrived at the schedule time, kept me informed of progress during the project, cleaned up area, personally walked me through the finish job, and tested each outlet and GFI. I am very satisfied with the job and with JA Electric services"

David R on May 2025


Avatar for CDCP Repairs
CDCP Repairs
5.00(
5
)
Approved Pro
CDCP Repairs
5.00(
5
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
588 local quotes requested

In Business Since 2023 CDCP Repairs is committed to excellence in every aspect of our business. CDCP has over 30 years of experience in the industry. 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 How We Got Started I chose to work in this industry because I grew up working along side my father and understanding the hard work and skill and dedication it takes to get these projects done efficiently and quick. I’ve now had his business handed down to me and am now on both sides of the hard work and the business side of things.. We started in this industry in 2023. We describe our business as Family owned and operated

"Super happy with both times we have hired Tim for painting services."

Anne p on January 2025

In Business Since 2023 CDCP Repairs is committed to excellence in every aspect of our business. CDCP has over 30 years of experience in the industry. 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 How We Got Started I chose to work in this industry because I grew up working along side my father and understanding the hard work and skill and dedication it takes to get these projects done efficiently and quick. I’ve now had his business handed down to me and am now on both sides of the hard work and the business side of things.. We started in this industry in 2023. We describe our business as Family owned and operated

"Super happy with both times we have hired Tim for painting services."

Anne p on January 2025


Avatar for X-ACT BUILDERS
X-ACT BUILDERS
4613 Araby Church Road
4.73(
64
)
Approved Pro
X-ACT BUILDERS
4613 Araby Church Road
4.73(
64
)
Approved Pro
Customers say: Quality work
1612 local quotes requested
27 years of experience

We are a small company that does all work in house we take great pride with every project and quality is our number one goal.

"I emailed them through the Angie's List system and never received a reply."

DAVID M on February 2020

We are a small company that does all work in house we take great pride with every project and quality is our number one goal.

"I emailed them through the Angie's List system and never received a reply."

DAVID M on February 2020


Avatar for JCB Handyman/ Masonry
JCB Handyman/ Masonry
6111 Boyers Mill Rd
3.87(
15
)
Approved Pro
JCB Handyman/ Masonry
6111 Boyers Mill Rd
3.87(
15
)
Approved Pro
Customers say: Super punctual
827 local quotes requested
11 years of experience

JCB Handyman/Masonry offers experienced finish carpentry, framing, and general handyman work in Washington D.C. Contact us today for an estimate!

"I had a very positive experience with JCB and will definitely call them in the future when I need help. I wanted to completely change my kitchen but I didn’t want to shoulder the expense of new cabinetry. I spoke to Brandon about my vision (which was to have a rustic, distressed look on my kitchen cabinetry with coordinated accent cabinetry around the kitchen) and he gave me a lot of helpful info on the phone, even before I signed the contract. He came out to my home to show me what they could do, to make sure it was to my liking. His estimate also seemed fair. Once the job started, Brandon and Chris and Joe were kind and communicative, letting me know what they were doing each day and checking in for feedback. Because I wanted a unique, distressed look on my cabinets, they created the look entirely by hand based on my description of what I wanted. It was painstaking and labor-intensive, but they worked efficiently. The entire job was done in a week (they worked through the weekend) and I’m thrilled with the result. They also re-painted my walls, in a color that complimented the new cabinetry, and they replaced a light fixture. In addition to be very talented and building me a kitchen that I love, they are genuinely good humans, which is even more important. I’d highly recommend JCB."

Patty M on April 2023

JCB Handyman/Masonry offers experienced finish carpentry, framing, and general handyman work in Washington D.C. Contact us today for an estimate!

"I had a very positive experience with JCB and will definitely call them in the future when I need help. I wanted to completely change my kitchen but I didn’t want to shoulder the expense of new cabinetry. I spoke to Brandon about my vision (which was to have a rustic, distressed look on my kitchen cabinetry with coordinated accent cabinetry around the kitchen) and he gave me a lot of helpful info on the phone, even before I signed the contract. He came out to my home to show me what they could do, to make sure it was to my liking. His estimate also seemed fair. Once the job started, Brandon and Chris and Joe were kind and communicative, letting me know what they were doing each day and checking in for feedback. Because I wanted a unique, distressed look on my cabinets, they created the look entirely by hand based on my description of what I wanted. It was painstaking and labor-intensive, but they worked efficiently. The entire job was done in a week (they worked through the weekend) and I’m thrilled with the result. They also re-painted my walls, in a color that complimented the new cabinetry, and they replaced a light fixture. In addition to be very talented and building me a kitchen that I love, they are genuinely good humans, which is even more important. I’d highly recommend JCB."

Patty M on April 2023


Avatar for 4 Peace On Earth Properties
4 Peace On Earth Properties
434 S. Franklin St.
4.87(
15
)
Approved Pro
4 Peace On Earth Properties
434 S. Franklin St.
4.87(
15
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
457 local quotes requested

Our mission is to provide reliable and high-quality repair and maintenance services that enhance the value and functionality of homes, businesses, and properties. We strive to build long-lasting relationships with our clients by delivering exceptional customer service, personalized attention, and fair pricing. Our team of skilled handymen is dedicated to providing timely and efficient solutions to any repair or maintenance challenge, and we are committed to exceeding our clients' expectations every time. At our company, we believe that a well-maintained property is a happy property, and we are proud to help our clients achieve their maintenance goals.

"Jose and crew were great: responsive, courteous, professional and affordable. They even noticed a lamp cord repair that needed electrical tape, and did that at their own initiative. I will definitely hire them again for future projects"

Terry J on April 2024

Our mission is to provide reliable and high-quality repair and maintenance services that enhance the value and functionality of homes, businesses, and properties. We strive to build long-lasting relationships with our clients by delivering exceptional customer service, personalized attention, and fair pricing. Our team of skilled handymen is dedicated to providing timely and efficient solutions to any repair or maintenance challenge, and we are committed to exceeding our clients' expectations every time. At our company, we believe that a well-maintained property is a happy property, and we are proud to help our clients achieve their maintenance goals.

"Jose and crew were great: responsive, courteous, professional and affordable. They even noticed a lamp cord repair that needed electrical tape, and did that at their own initiative. I will definitely hire them again for future projects"

Terry J on April 2024

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Alarm or security system installations FAQs

If you terminate your security system before your contract ends, you’ll likely have to pay a cancellation fee—often a percentage of the remaining contract balance. To avoid these fees, consider choosing a brand that offers contract-free plans, like SimpliSafe or Vivint. You can also negotiate with your provider to see if they provide pro-rated cancellation fees or special exceptions.

Paying for a security system is a valuable investment because it enhances your home’s safety and deters criminal activity. With millions of property crimes each year, having robust security measures helps protect your property and might even lower your insurance premiums. It's a worthwhile investment for lasting peace of mind.

The average cost to install security cameras ranges from $125 to $3,500, depending on the amount, type, and placement. To install a complete setup of four cameras, homeowners can expect to invest an average of $1,300 for labor and equipment. Installing multiple cameras gives you comprehensive coverage of vulnerable entry points and enhances overall property security.

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