Top-rated alarm or security system installers.

Get matched with top alarm or security system installers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Alarm or security system installers in Saint Charles

Avatar for DST Security
DST Security
476 Old Smizer Mill Road, #171
4.97(
22
)
•
Approved Pro
DST Security
476 Old Smizer Mill Road, #171
4.97(
22
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We opened our business in the spring of 2009. We started as a home theater wiring and installation company. As time pressed on it was clear that most home owners wanted someone that could take care of more than just a home theater, and since technology has evolved in the past years we have had to adapt now offering complete Smart Home Technology. Smart home options typically will integrate Security Surveillance Door locks Thermostats Garage doors, and so much more.

"I purchased a house with an existing security system. JR came out and was able to tell me exactly what I needed to update the system. During the installation the guys walked me through how to work everything. Very happy I went with DST Security."

Sue W on July 2021

We opened our business in the spring of 2009. We started as a home theater wiring and installation company. As time pressed on it was clear that most home owners wanted someone that could take care of more than just a home theater, and since technology has evolved in the past years we have had to adapt now offering complete Smart Home Technology. Smart home options typically will integrate Security Surveillance Door locks Thermostats Garage doors, and so much more.

"I purchased a house with an existing security system. JR came out and was able to tell me exactly what I needed to update the system. During the installation the guys walked me through how to work everything. Very happy I went with DST Security."

Sue W on July 2021


Avatar for Rest Smart Home Solutions LLC
Rest Smart Home Solutions LLC
PO Box 261
5.00(
1
)
•
Approved Pro
Rest Smart Home Solutions LLC
PO Box 261
5.00(
1
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

At Rest Smart Home Solutions LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or security systems, we can take care of all your residential security needs. Ask us about our service! We look forward to working with you!

"I canâ t thank Ryan enough for reinstalling my Ring camera! Very quick to respond and prompt service. Took the time to discuss my issue over the phone. Thank you so much!"

Donna N on May 2022

At Rest Smart Home Solutions LLC, we pride ourselves on providing quality service that customers can believe in. Whether it's surveillance cameras or security systems, we can take care of all your residential security needs. Ask us about our service! We look forward to working with you!

"I canâ t thank Ryan enough for reinstalling my Ring camera! Very quick to respond and prompt service. Took the time to discuss my issue over the phone. Thank you so much!"

Donna N on May 2022


R and M Electrical and Consulting
16566 Victoria Crossing Drive
New on HomeAdvisorNew on Angi•
Approved Pro
R and M Electrical and Consulting
16566 Victoria Crossing Drive
New on AngiNew on HomeAdvisor•
Approved Pro
35 years of experience
Free onsite estimate

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!


Avatar for ADT
ADT
3750 Priority Way South Dr
4.51(
711
)
•
Approved Pro
ADT
3750 Priority Way South Dr
4.51(
711
)
•
Approved Pro
Customers say: Terrific value
6954 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.

"Everything was good when we met with the ADT service technician . We spent a bit more than we expected and the equipment is not easy to figure out compared to our previous service. We also have constant connection issues."

Leslie E on May 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.

"Everything was good when we met with the ADT service technician . We spent a bit more than we expected and the equipment is not easy to figure out compared to our previous service. We also have constant connection issues."

Leslie E on May 2025


Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
2060 Craigshire Road
4.73(
15
)
•
Approved Pro
Power Up Electrical Contractors, LLC
2060 Craigshire Road
4.73(
15
)
•
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
985 local quotes requested

We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards

"👍 great. Mike did a great job tracking down our problem."

Steven O on February 2025

We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards

"👍 great. Mike did a great job tracking down our problem."

Steven O on February 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
6272 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


Tandem Trades LLC
510 Ortmann Place
4.95(
60
)
•
Approved Pro
Tandem Trades LLC
510 Ortmann Place
4.95(
60
)
•
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1088 local quotes requested

Tandem Trades is a local family-owned company that provides repair and maintenance services which include, but are not limited to: Bathroom Repairs & Updating Plumbing Repairs & Installation Replacement of Interior & Exterior Lighting General Painting Window Treatment Installation Deck & Trim Repair Small Flooring Jobs Tile - Wood - Laminate Installation Garage & Basement Clean-Out Skid Steer Work We offer color and design assistance as well as personal shopping for fixtures, hardware, millwork and other items to suit your project. If you've been inspired by something online but are having difficulty knowing how or where to start, let us know and we'll help you out or take it on. We'll even assist in shopping for that perfect piece to transform or repurpose. Call or text 603-834-1416 and let us help! Professional and personal references are available upon request.

"amazing!.... great service,,.... great contractor!"

Fred B on May 2025

Tandem Trades is a local family-owned company that provides repair and maintenance services which include, but are not limited to: Bathroom Repairs & Updating Plumbing Repairs & Installation Replacement of Interior & Exterior Lighting General Painting Window Treatment Installation Deck & Trim Repair Small Flooring Jobs Tile - Wood - Laminate Installation Garage & Basement Clean-Out Skid Steer Work We offer color and design assistance as well as personal shopping for fixtures, hardware, millwork and other items to suit your project. If you've been inspired by something online but are having difficulty knowing how or where to start, let us know and we'll help you out or take it on. We'll even assist in shopping for that perfect piece to transform or repurpose. Call or text 603-834-1416 and let us help! Professional and personal references are available upon request.

"amazing!.... great service,,.... great contractor!"

Fred B on May 2025


Mr. Handyman of St Charles and Chesterfield Valley
4051 North Saint Peters Parkway
4.68(
19
)
•
Approved Pro
Mr. Handyman of St Charles and Chesterfield Valley
4051 North Saint Peters Parkway
4.68(
19
)
•
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
674 local quotes requested

With everything else on your to-do list, even thinking about tackling home or business repairs is probably the last thing you want to do. An ever-growing list of tasks doesn’t have to derail or disrupt your day when you have our professional handymen ready to make short work of all your home and business repair tasks! The team at Mr. Handyman of St. Charles Co. and Chesterfield Valley is up for the challenge of completing your most extensive home improvement duties or the smallest home repair jobs. We pride ourselves on providing the utmost in customer service, offering our Done Right Promise. This means we stand behind our workmanship and ensure that if you’re unhappy with your service, we will make it right. The care we show our customers and the dedication to our work are just some of the reasons our St. Charles County and Chesterfield Valley customers choose Mr. Handyman over anyone else.

"Really well! Cleaned up afterwards."

Nancy Altizer C on June 2025

With everything else on your to-do list, even thinking about tackling home or business repairs is probably the last thing you want to do. An ever-growing list of tasks doesn’t have to derail or disrupt your day when you have our professional handymen ready to make short work of all your home and business repair tasks! The team at Mr. Handyman of St. Charles Co. and Chesterfield Valley is up for the challenge of completing your most extensive home improvement duties or the smallest home repair jobs. We pride ourselves on providing the utmost in customer service, offering our Done Right Promise. This means we stand behind our workmanship and ensure that if you’re unhappy with your service, we will make it right. The care we show our customers and the dedication to our work are just some of the reasons our St. Charles County and Chesterfield Valley customers choose Mr. Handyman over anyone else.

"Really well! Cleaned up afterwards."

Nancy Altizer C on June 2025


Avatar for The Steven Brand
The Steven Brand
3 Renee Drive
4.78(
36
)
•
Approved Pro
The Steven Brand
3 Renee Drive
4.78(
36
)
•
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
3400 local quotes requested

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very satisfied with his work"

jacquelyn h on June 2025

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very satisfied with his work"

jacquelyn h on June 2025


C Hatcher Construction
Located In:
5.00(
7
)
•
Approved Pro
C Hatcher Construction
Located In:
5.00(
7
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
946 local quotes requested

Home repairs, electric, plumbing, remodeling, flooring, masonry, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"No matter what problem you have, Clint is the man for the job! He not only fixed the plumbing issues I discovered during a remodel but was able to fix the electrical issues, flooring problems, install the cabinets, cut and grout backsplash tile, and fix a handful of minor issues that came up along the way. Clint is on time, dependable, courteous and respectful of your property - he even cleans up afterwards! I could not have completed this project without Clint Hatcher and highly recommend him to anyone who needs work done - you will not be disappointed!!"

Lorie D on February 2024

Home repairs, electric, plumbing, remodeling, flooring, masonry, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"No matter what problem you have, Clint is the man for the job! He not only fixed the plumbing issues I discovered during a remodel but was able to fix the electrical issues, flooring problems, install the cabinets, cut and grout backsplash tile, and fix a handful of minor issues that came up along the way. Clint is on time, dependable, courteous and respectful of your property - he even cleans up afterwards! I could not have completed this project without Clint Hatcher and highly recommend him to anyone who needs work done - you will not be disappointed!!"

Lorie D on February 2024

...
Showing 1-10 of 971

FAQs for alarm or security system installation projects in Saint Charles, MO

Solar-powered motion sensor fixtures operate independently from your home's electrical system, eliminating the need for complex wiring. Each unit contains its own integrated solar collector and battery storage system. Installation involves simple mounting procedures rather than electrical connections. 

Be aware that heavily shaded locations may compromise performance, and seasonal sunlight variations can affect reliability in some geographic regions.

Most motion detection systems include adjustment controls—small dials or switches—located on the sensor housing. These allow customization of detection distance, sensitivity to movement size, and duration settings for illumination after triggering. For fixtures without built-in adjustment capabilities, aftermarket controllers can sometimes be added. 

Regular testing after adjustments helps optimize performance and minimize unwanted activations from small animals or vegetation movement.

Converting to motion-activated lighting reduces electricity consumption substantially compared to fixtures left continuously illuminated. Traditional outdoor lighting operating throughout nighttime hours (10 to 14 hours) consumes significantly more power than motion-activated alternatives that illuminate only when needed. The actual savings depend on your previous lighting configuration, the efficiency of your new fixtures, and local electricity rates.

The ideal number of security lights depends on your property's specific layout and vulnerability points. Strategic placement matters more than quantity—focus on key areas like entry points, blind corners, and pathways. Analyze your property for potential coverage gaps, considering detection angles and ranges of each fixture. Balancing comprehensive coverage with avoiding unnecessary redundancy helps optimize both security effectiveness and installation budget.

The Saint Charles, MO homeowners’ guide to alarm or security system installations
From average costs to expert advice, get all the answers you need to get your job done.
window on home with hurrican shutters
Jun 29, 2025
Jun 29, 2025
Hurricane shutters protect your home from damage and may lower insurance premiums. Learn about cost factors and why hiring a pro ensures proper installation.
digital home alarm system on wall
Mar 26, 2025
Mar 26, 2025
Learn how much security system installation costs based on factors such as the brand, equipment, add-ons, monthly fees, and labor.
digital smart home automation system
Apr 15, 2024
Apr 15, 2024
HomeAdvisor's Smart Home Cost Guide explores prices to automate your house. Compare costs for full home systems vs. individual components.
surveillance camera installed on house for security
•
Nov 20, 2024
Nov 20, 2024
Learn how camera type, quality, features, and other factors influence the total cost of security camera installation with our cost guide.
Hand pushing buttons on alarm system
Jan 11, 2022
Jan 11, 2022
HomeAdvisor's Alarm and Security System Cost Guide gives you the price to fix your home security system. Find average maintenance costs and professional repair service rates.
A hand controlling the electric wlndow blinds
Jan 31, 2024
Jan 31, 2024
HomeAdvisor's Electric Blinds Cost Guide explores the price of electric blinds based on the power source and smart capabilities. Find out motorized blinds cost factors.
Share project details to get started.