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TRUSTED BY ALTON, IL HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon18
    Verified home security system services reviews

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

Avatar for ADT
ADT
4.5(
892
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Repair+5 more

Serving Alton, 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

31 neighbors recently requested a quote
Recommended by88%of homeowners
Vesta Security Services, LLC
3.3(
29
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallSurveillance Cameras - Install or Repair - For Business+3 more

Serving Alton, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"All processes are coordinated by the owner ( Marco). He is responsive, professional, expert in his field, transparent, has competitive pricing, uses the most advanced systems, and customer oriented. Marco personally makes sure all aspects of the security system (sensors/cameras/monitoring/applications) are working seamlessly before project completion. He was a pleasure to work with and his associates were top notch."
Response time1 day
32 neighbors recently requested a quote
Recommended by66%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 Alton, 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 Alton, 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 Alton, 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 I.T. STUDIOS LLC
I.T. STUDIOS LLC
New to Angi
Building Automation System - Install or Service - For BusinessSmart Home System - Install or Service

Serving Alton, IL and surrounding areas

Approved

In business since 2009

Emergency services offered

Small jobs welcome

"I.T. STUDIOS LLC is a veteran-owned audio/visual production and broadcast services company specializing in live event production, remote broadcast operations, live streaming, AV-over-IP systems, replay operations, technical direction, and production management. We support government agencies, corporations, convention centers, sports organizations, and entertainment venues nationwide with professional video production and event technology solutions."

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 Alton, IL and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Amazing system! Did a lot of research on alarm systems....so glad I went with 1st security! They came to my house and explained everything to me, were not pushy at all. Came and installed the system a few days later....took the time to explain everything to me and did an amazing job with the installation. And the price is excellent, both the installation fee and the month to month. So happy with my decision."
Recommended by94%of homeowners
Showing 1-10 of 48
Home Security Systems FAQs, answered by experts

When deciding whether a home automation system is right for you, consider the advantages and disadvantages first.

Pros

  • Home automation can help make your home more energy efficient, possibly lowering utility bills.

  • A wide range of automated solutions is available to meet your needs.

  • Centralized and remote control of different home automation systems.

Cons

  • Home automation can be costly.

  • Not all automated systems are compatible with each other.

  • Over-dependence on home automation can be problematic if systems cannot connect to the cloud.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

Professionals optimize camera placement, integrate recording systems, and ensure tamper-proof security.

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.

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.

The Alton, 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.