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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon31
    Verified home security system services reviews

Top-Rated Home security system pros in Cahokia - Updated Nov 2026

Avatar for ADT
ADT
4.5(
890
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Cahokia, IL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"With crime and break-ins picking up around the city, we felt it was time to invest in home security. Using ADT for the entire process was excellent. They added an extra motion detector to our equipment package for being new customers. We also added the smoke and carbon monoxide detectors. All and all, a great overall security and automation system."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

35 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Electronics 911
Electronics 911
5.0(
5
)
Alarm or Security System - RepairAlarm or Security System - InstallAlarm or Security System - Install - For Business+4 more

Serving Cahokia, IL 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
1 neighbors recently requested a quote
Recommended by100%of homeowners
SEICO, Inc.
3.5(
2
)
Surveillance Cameras - Install or Repair - For BusinessAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor - For Business+1 more

Serving Cahokia, IL and surrounding areas

Approved

In business since 1972

Free estimates

SEICO is your complete source for all your security needs. Whether it�s Access Control Systems, indoor and outdoor CCTV surveillance, photo ID, burglar/fire alarm or just alarm monitoring, we have the right product to meet your needs, at an affordable price. SEICO has been protecting commercial, industrial and financial businesses since 1972. \nSEICO is a member of the Prairie Technology Alliance. \n

Response time2 days
2 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving Cahokia, IL 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
Sean Redus
5.0(
1
)
Building Automation System - Install or Service - For BusinessSmart Home System - Install or Service

Serving Cahokia, IL and surrounding areas

Approved

Emergency services offered

Reliable, detail-oriented handyman with years of experience providing high-quality residential and commercial repair and maintenance services. I specialize in TV mounting, drywall repair, painting, door and lock repairs, furniture assembly, deck repairs, fixture installation, shelving, caulking, and general home maintenance. I take pride in delivering dependable workmanship, honest communication, and completing every job efficiently and correctly the first time. Whether you need a small repair or a larger project, I'm committed to providing professional service at a fair price and treating your home with respect. Customer satisfaction is always my top priority.

Avatar for 1st Security USA
1st Security USA
4.6(
362
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+7 more

Serving Cahokia, IL and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Jeremy came out to my house to explain 1st Security's system (co-branded system with alarm.com), and gave me an amazingly good deal with the best pricing possible. The thing that amazed me was that 1st Security's pricing (both upfront equipment cost and the monthly monitoring charge, with full access to smart phone system) was LESS than the do-it-yourself options like FrontPoint. Yes--it was less than FrontPoint, even though 1st Security's pricing includes FULL installation by a professional (Larry, who was amazing--spent hours at my house making sure everything was right and teaching my husband and me how to use the system). Even more amazingly, 1st Security's monthly rate (again, less than FrontPoint) includes service, meaning that there is NO house-call charge, the way there was with my previous alarm company. If anything breaks, etc., they will come out and fix/replace it! Jeremy and Larry were both awesome--helpful, courteous, professional, prompt, etc. I highly HIGHLY recommend them and 1st Security. If you're thinking of going with a DIY alarm company to save money, don't bother--call 1st Security. They will also match other companies' prices!"
Recommended by94%of homeowners
Showing 1-10 of 48
Home Security Systems FAQs, answered by experts

You should be able to use your smart doorbell and access your video feed without a subscription. Subscriptions give you special features, such as night vision, downloading, and automatically saving footage for a set amount of days. It’s a good idea to compare plans among different providers before you commit. 

Yes, most pros encourage you to change your locks when you move into a new home. While the previous owner may hand you their keys, you have no way of knowing whether other copies exist elsewhere. Changing your locks as soon as you move in is a great way to ensure that you can enjoy new, fully functioning locks that will work with your unique key or code.

It is possible to spend only $30 on a camera that can cover one particular area. You wouldn't need to buy software, hardware, cables, or anything else. Instead, it would connect wirelessly to an app on your phone where you could monitor the feed and take necessary actions at your own discretion.

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.

A study from the University of North Carolina found that security system signs were one of the top ten deterrents for burglars when choosing a target, so they do have some effect. However, you can get into legal trouble for putting up fake signage, so it’s best only to put up signs when you have the alarms to back them up.

The Cahokia, IL homeowners’ guide to home security system services

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