🐜AssistAnt · Pro directory
There are 32 home security companies within 25 miles of O Fallon, MO in the AssistAnt directory as of October 16, 2026, 2 of them based in O Fallon itself. None are verified by AssistAnt yet, so check a business’s license and insurance before you hire it. Verified businesses are listed first, then by distance. No business can pay for a higher spot.
Home security systems near O Fallon
- Digital Security Corporation
O Fallon, MO · 1.5 mi
Not verified yet
(636) 978-7778
- StealthVid, Inc.
O Fallon, MO · 5.0 mi
Not verified yet
(314) 574-9094
- The Newberry Group Inc
Owings Mills, MD · 5.4 mi
Not verified yet
(888) 317-4438
- St Louis Alarm Co
St. Peters, MO · 5.5 mi
Not verified yet
(636) 942-5276
- Assurance Protection
Saint Peters, MO · 6.6 mi
Not verified yet
(314) 236-5910
- Facility Control Systems
Saint Charles, MO · 9.2 mi
Not verified yet
(636) 946-7963
- Visionable Surveillance Solutions
Chesterfield, MO · 9.5 mi
Not verified yet
(636) 532-9171
- Elliott Data Systems, Inc.
Chesterfield, MO · 9.8 mi
Not verified yet
(636) 386-8400
- Westco Security & Technology Systems
Chesterfield, MO · 10.0 mi
Not verified yet
(636) 519-0022
- Digital Forensics Corp
Chesterfield, MO · 10.2 mi
Not verified yet
(636) 273-9220
- OSI Solutions - Open Source Integrated Solutions
Saint Charles, MO · 11.1 mi
Not verified yet
(636) 373-8925
- CISO Sidekick
Chesterfield, MO · 12.5 mi
Not verified yet
(636) 777-7855
- Interface Security Systems LLC
Earth City, MO · 12.8 mi
Not verified yet
(314) 595-0100
- Secure24 Alarm Systems - ADT Authorized Dealer
Earth City, MO · 13.4 mi
Not verified yet
(866) 203-7387
- Communications Prewires
Maryland Heights, MO · 14.2 mi
Not verified yet
(314) 291-8959
- Watchtower Security
Maryland Heights, MO · 15.0 mi
Not verified yet
(314) 427-4586
- Midwest Networking Services
Saint Louis, MO · 15.3 mi
Not verified yet
(314) 221-2158
- Butler Durrell Security
Wildwood, MO · 15.3 mi
Not verified yet
(636) 458-1866
- Cam-dex Security Corporation
Maryland Heights, MO · 15.5 mi
Not verified yet
(314) 989-1984
- Convergint
Saint Louis, MO · 15.8 mi
Not verified yet
(314) 872-6920
- Interface Systems
Saint Louis, MO · 16.8 mi
Not verified yet
(800) 727-1668
- Jeff Computers
Manchester, MO · 17.2 mi
Not verified yet
(636) 256-7901
- Wired Technologies
Saint Louis, MO · 18.0 mi
Not verified yet
(314) 423-1300
- Itrue Security
Berkeley, MO · 19.8 mi
Not verified yet
(877) 274-6573
- Multi-link Security
Valley Park, MO · 19.8 mi
Not verified yet
(636) 923-0101
- Protection 1 Security Solutions
Saint Louis, MO · 20.1 mi
Not verified yet
(314) 665-2939
- Et Security And Fire
Pacific, MO · 21.6 mi
Not verified yet
(314) 645-7557
- Abf Security
Fenton, MO · 22.1 mi
Not verified yet
(636) 349-1090
- Advanced Security & Technologies
Saint Louis, MO · 22.4 mi
Not verified yet
(314) 287-6330
- Philibert Security Systems, Inc.
Webster Groves, MO · 23.5 mi
Not verified yet
(314) 962-2000
Showing the 30 listed first. Search by ZIP code to see more.
Questions
- How many home security companies are near O Fallon, MO?
- 32 within 25 miles, 2 in O Fallon, as of October 16, 2026.
- Which home security companies near O Fallon, MO are verified?
- None yet. Verified means AssistAnt checked the business registration and insurance; unverified listings come from public business records.
- Can a business pay to rank higher on AssistAnt?
- No. Verified businesses are listed first, then everyone else by distance. Placement cannot be bought, and AssistAnt never sells your contact information.
More in O Fallon
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- Used appliances in O Fallon, MO10 businesses
- HVAC (heating & air conditioning) in O Fallon, MO210 businesses
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- Painters in O Fallon, MO84 businesses
- Garage door repair in O Fallon, MO70 businesses
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- Concrete, masonry & paving in O Fallon, MO107 businesses
- Fence contractors in O Fallon, MO22 businesses
- Gutter services in O Fallon, MO22 businesses
- Chimney sweep & repair in O Fallon, MO14 businesses
- Junk removal in O Fallon, MO9 businesses
- Home inspectors in O Fallon, MO43 businesses
- Flooring in O Fallon, MO41 businesses
- Windows & doors in O Fallon, MO56 businesses
- Remodeling contractors in O Fallon, MO141 businesses
- Insulation contractors in O Fallon, MO14 businesses
- Towing in O Fallon, MO60 businesses
- Auto repair in O Fallon, MO612 businesses
- Collision repair & auto glass in O Fallon, MO154 businesses
- Welding & fabrication in O Fallon, MO92 businesses
- Machine shops & CNC in O Fallon, MO69 businesses
- Computer & phone repair / IT in O Fallon, MO132 businesses
- Excavation & heavy equipment in O Fallon, MO15 businesses
- Trucking in O Fallon, MO41 businesses
Nearby towns
- St Peters, MO 5 mi
- Saint Charles, MO 10 mi
- Chesterfield, MO 11 mi
- Earth City, MO 12 mi
- Wildwood, MO 15 mi
- Maryland Heights, MO 15 mi
- Manchester, MO 17 mi
- Berkeley, MO 20 mi
- Valley Park, MO 20 mi
- Pacific, MO 21 mi