🐜AssistAnt · Pro directory
There are 42 home security companies within 25 miles of Castle Rock, CO in the AssistAnt directory as of October 16, 2026, 2 of them based in Castle Rock 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 Castle Rock
- Hs3 Technologies Inc.
Castle Rock, CO · 1.5 mi
Not verified yet
(303) 325-3233
- Zions Security Alarms
Castle Rock, CO · 3.1 mi
Not verified yet
(720) 828-7667
- Adt Security Services
Englewood, CO · 12.4 mi
Not verified yet
(800) 743-2309
- Merlin International, Inc
Englewood, CO · 12.4 mi
Not verified yet
(303) 221-0797
- Saitell Usa
Englewood, CO · 13.2 mi
Not verified yet
(303) 680-6660
- Unisight Digital Technologies, Inc.
Englewood, CO · 13.2 mi
Not verified yet
(303) 680-6629
- Security Central Inc. | Denver Home Security Systems | Business Alarm Systems Denver | Home Alarm System Monitoring
Englewood, CO · 13.3 mi
Not verified yet
(303) 721-0111
- Valuetec Financial Equipment
Englewood, CO · 13.5 mi
Not verified yet
(720) 235-5405
- Convergint
Centennial, CO · 13.6 mi
Not verified yet
(303) 932-0757
- Colorado Security Protection
Highlands Ranch, CO · 13.7 mi
Not verified yet
(720) 255-1073
- Liteye Systems
Centennial, CO · 13.7 mi
Not verified yet
(720) 974-1766
- Home Security Centers
Centennial, CO · 14.0 mi
Not verified yet
(303) 799-9620
- Peak Protection, LLC
Centennial, CO · 14.0 mi
Not verified yet
(855) 879-7325
- ECAMSECURE
Denver, CO · 15.2 mi
Not verified yet
(303) 214-0969
- Centennial Solutions
Denver, CO · 16.7 mi
Not verified yet
(303) 335-0987
- Security One: Denver, Colorado Home Security Systems
Denver, CO · 16.7 mi
Not verified yet
(888) 584-5152
- Pogo Security LLC
Denver, CO · 18.5 mi
Not verified yet
(720) 492-1694
- Adt Security Services
Aurora, CO · 18.5 mi
Not verified yet
(303) 857-5463
- Seca Secure
Littleton, CO · 18.6 mi
Not verified yet
(303) 997-8451
- Apollo Security USA
Englewood, CO · 18.8 mi
Not verified yet
(303) 881-9914
- Security Surveillance System
Aurora, CO · 18.8 mi
Not verified yet
(720) 535-5803
- Retail Tech Solutions Llc
Aurora, CO · 19.2 mi
Not verified yet
(303) 669-4866
- 1stkey Technology Group Inc
Aurora, CO · 19.7 mi
Not verified yet
(720) 340-1539
- Max Security Inc.
Denver, CO · 20.1 mi
Not verified yet
(303) 745-8888
- A-1 Security Systems
Denver, CO · 20.2 mi
Not verified yet
(303) 462-2443
- Protection 1 Security Solutions
Denver, CO · 20.3 mi
Not verified yet
(720) 636-7602
- M-tech Security Solutions
Denver, CO · 20.3 mi
Not verified yet
(720) 507-1454
- Etg Systems Inc
Denver, CO · 20.3 mi
Not verified yet
(720) 644-9300
- Integrated Systems
Centennial, CO · 20.4 mi
Not verified yet
(303) 698-2698
- Residential Systems Inc
Littleton, CO · 20.4 mi
Not verified yet
(303) 277-9983
Showing the 30 listed first. Search by ZIP code to see more.
Questions
- How many home security companies are near Castle Rock, CO?
- 42 within 25 miles, 2 in Castle Rock, as of October 16, 2026.
- Which home security companies near Castle Rock, CO 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 Castle Rock
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Nearby towns
- Highlands Ranch, CO 13 mi
- Centennial, CO 13 mi
- Littleton, CO 17 mi
- Englewood, CO 18 mi
- Aurora, CO 20 mi
- Denver, CO 24 mi
- Lakewood, CO 26 mi
- Wheat Ridge, CO 30 mi
- Golden, CO 30 mi
- Commerce City, CO 30 mi