Top-rated home security system pros.

Get matched with top home security system pros in O Fallon, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your home security system service project in O Fallon, MO?

Select your specific project to find the pro for you.

TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon105
    Verified home security system services reviews

Find Home security system pros in O Fallon

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Surveillance Cameras - Install or RepairAlarm or Security System - InstallAlarm or Security System - Install - For Business+5 more

Serving O Fallon, 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!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for DST Security
DST Security
4.9(
23
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+1 more

Serving O Fallon, 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
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessAlarm or Security System - Monitor+4 more

Serving O Fallon, 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
)
Smart Home System - Install or ServiceSurveillance Cameras - Install or RepairSurveillance Cameras - Install or Repair - For Business

Serving O Fallon, 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
Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
4.5(
19
)
Building Automation System - Install or Service - For BusinessSmart Home System - Install or Service

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. \nWe 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. \nWe accept Check, Cash or Credit Cards

27 neighbors recently requested a quote
Recommended by82%of homeowners
Mid Knight Fire and Security
5.0(
2
)
Alarm or Security System - InstallAlarm or Security System - Install - For BusinessSurveillance Cameras - Install or Repair+1 more

Serving O Fallon, 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 SnapPro Media, LLC
SnapPro Media, LLC
5.0(
4
)
Building Automation System - Install or Service - For BusinessSmart Home System - Install or ServiceSurveillance Cameras - Install or Repair - For Business

Serving O Fallon, MO and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!\n

Recommended by66%of homeowners
...
Showing 1-10 of 97
Home Security Systems questions, answered by experts

Security experts recommend deadbolt locks as the most secure option for a house's exterior or entry doors. Deadbolts provide the best security because they can prevent most types of forced entry and are harder to lockpick. Common types include the standard single-cylinder deadbolt, which is often found on front doors. For enhanced security, you can opt for a double-cylinder deadbolt, which requires a key to operate from both the inside and the outside.

While all security lighting systems offer different benefits, motion sensor security lights have the most advantages and the fewest cons for the average homeowner. While the upfront cost can be hefty, automatic, motion-detected activation will reduce your energy bills in the long run by ensuring the lights are only turned on when necessary. Plus, they’ll ward off intruders and help invited guests find their way onto your property in equal measure. 

Yes, many providers offer reinforced steel, fire-rated, and electronic access doors for businesses.

Several types of deadbolts are available, including single-cylinder, double-cylinder, rim, smart, and electronic deadbolt locks. The most common type found in U.S. homes is the single-cylinder deadbolt, which uses a key on the exterior and a thumb turn on the interior. A double-cylinder deadbolt features two locking mechanisms and requires a key to be operated from both the inside and the outside.

Yes, you should always change your locks after buying a house. Do so as soon as possible after you move in. Otherwise, you won’t know who has working keys to the property, whether they’re spare keys or otherwise. If an intruder gains access to your house with a key, it may not be covered under your homeowners insurance.

The O Fallon, 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.