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Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)

Serving Saint Clair, MO and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"Bryan D helped me with my new house alarm. Bryan was friendly and pleasant to work with. He took his time and listened to my needs for my desired level of security. (I am quite the paranoid person when it comes to home security!) He is extremely knowledgeable and was informative and thorough on all aspects of security, from the system functionality to do-it-yourself enhancements around my home. He gave me a ton of great advice and I feel 110% at ease with my security system! I highly recommend you work with Bryan at Alarm protect group!!"
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+1

9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
856
)

Serving Saint Clair, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"ADT’s 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!"
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

80 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for DST Security
DST Security
4.9(
23
)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"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."
Response time2 days
Recommended by100%of homeowners
Avatar for Electronics 911
Electronics 911
5.0(
5
)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"The owner of Electronics 9-1-1 installed an eight-camera home security system in my home. The entire experience, from initial consultation to finished product, was the model on which all other advertisers' services on Homeadvisor should be based! The company owner's recommendations about installation techniques, technical knowledge and considerations, equipment capabilities, scheduling accommodations, and modifications in mid-installation to overcome unforeseen issues were all spot-on, and resulted in a system that exceeded every expectation. Would use Electronics 9-1-1 again in a heartbeat, and it is a pleasure to recommend them to anyone needing security system installation or service of the highest quality."
Response time2 days
Recommended by100%of homeowners
Avatar for Custom Technology Solutions
Custom Technology Solutions
4.0(
11
)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

Where Highest Quality Meets Lowest Price! We offer over 18 years experience in the low-voltage Industry. We've established a solid reputation in security projects, home automation, home theater, TV installation and access points, phone and data communications for large executive homes, corporations, and residential homes across the country. We are licensed in both the city and the county. We're 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.

Response time3 days
Recommended by100%of homeowners
Mid Knight Fire and Security
5.0(
2
)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2023

Credit card accepted

Offers commercial services

"Midnight Fire and Security Systems are highly recommended. They demonstrated professionalism and expertise, conducting a thorough assessment and identifying critical areas for improvement within a reasonable price. The team showcased attention to detail, ensuring every connection was safe and efficient. They enhanced our home security and fire protection. Definitely will be my go to business for fire and security needs."
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)

Serving Saint Clair, MO and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Credit card accepted

Protect Your Home is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide. Since we emerged in 1998, we've grown from a company of few to having over 2,000 high performance team members, three locations in Indianapolis, a sales center in Kentucky, and over 128 field branches across the country—and we're still growing.\n\nFor nearly 20 years, Protect Your Home has partnered with ADT®, the #1 name in home security. Today, with our national reach, we are one of ADT's biggest partners and the only partner to be designated as an Authorized Premier Provider.\n\nOur commitment to serving others combined with our projects, events, and culture contribute to the development of our team professionally, personally, and financially.\n\nIt's our mission. It's who we are. It's our legacy.\n

SA and Homeowner
Recommended by100%of homeowners
Avatar for Services Butler
Services Butler
5.0(
1
)

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

We specialize in residential and Monitored Security & Automation. \nOptions include: Remote Monitoring | Indoor & Outdoor Cameras | Camera Doorbells | Smart Locks.\n\nOur system is custom built to deter real threats our home security systems doesn't just record crime, they help prevent it. With outdoor security cameras that detect lurkers and scare them away, a doorbell camera that detects and protects packages, and smart locks, lighting, and security sensors—your home is always protected.

Indoor Camera
Vivint Panel - 2
Vivint Panel
Response time2 days
Response rate96%
Recommended by100%of homeowners
Avatar for Monitex Security, Inc.
Monitex Security, Inc.
New to Angi

Serving Saint Clair, MO and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

24/7 live protection, prevention & peace of mind.\n\nWant reliable, effective security that’s within budget? Monitex Security provides 24/7 live CCTV monitoring for construction sites, residential buildings, warehouses, and businesses across the U.S. and worldwide. Our virtual guards use AI + human intelligence to detect threats, deter intruders via audio, and dispatch law enforcement in real time. Services include remote doorman, access control, and camera installation. Cut your security costs by up to 70%. Based in Brooklyn, NY. Fully insured. We also operate in all 50 states as long as there's a need for live security surveillance monitoring. We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. \n

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Home Security Systems questions, answered by experts

The best window alarm sensor depends on the type of window you’re concerned about since different types of sensors will work best in different scenarios. Many homes are equipped with contact sensors, which trigger an alarm when a window is opened, and each part of the sensor breaks contact with the other. But there are other options, too, like a glass break sensor or motion sensor, which both work well for windows that are in low-traffic areas.

Each has its use, depending on the scenario. Security doors are primarily intended to keep people out of the home, while storm doors are used to protect the home from extreme weather. Both tend to be made from heavy-duty metal and may include glass panels to allow light to enter the home. Storm doors can feature mesh screens, just like screen doors, to allow for increased ventilation and to keep out pests. Security doors rarely, if ever, have mesh screens.

You don’t need to completely revamp your security system constantly, but it’s a great idea to give it a once-over every year. Look for potential upgrades or new features—like smart home tech or replacing outdated equipment—that could boost your safety. If you make any significant changes, let your insurer know as they may adjust your discounts to reflect your improved security. Staying on top of your security not only keeps your home safe but ensures you’re getting the best possible rate on your insurance.

Costs depend on system type, labor rates, and additional features like smart integration or professional monitoring.

Yes, you can install a home security system in an old house. In fact, you can install a security system in any home. Some wiring may need to be added, but most home security systems do not require a lot of additional wiring. Wireless security systems can easily be installed with minimal additional wiring, if any at all. Most wireless security systems can be monitored and controlled from your smartphone, and the cameras and sensors operate on batteries.

The Saint Clair, MO homeowners’ guide to home security system services

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