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Best Security System in San Antonio, TX (2026)

17 businesses found · Ranked by quality, not ads

Find top-rated security system businesses in San Antonio, TX. Every business is ranked by Quality Score — our quality metric based on responsiveness, data completeness, and verified reviews. Not who pays the most.

Smith Thompson Home Security and Alarm San Antonio

San Antonio, TX

Security System

★ 4.9(328 reviews)

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Alamo Smart Home

San Antonio, TX

Security System

★ 4.9(1269 reviews)

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Vivint

San Antonio, TX

Security System

★ 4.6(1067 reviews)

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ASG Security | San Antonio

San Antonio, TX

Security System

★ 4.7(17 reviews)

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Alarm Consult - Home Security in San Antonio, Texas

San Antonio, TX

Security System

★ 4.9(21 reviews)

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SMR Security Services, LLC

San Antonio, TX

Security System

★ 4.5(30 reviews)

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LAW Security

San Antonio, TX

Security System

★ 4.9(293 reviews)

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Alert 360 Home & Business Security San Antonio

San Antonio, TX

Security System

★ 4.8(685 reviews)

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Pace Protection

San Antonio, TX

Security System

★ 5.0(50 reviews)

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Allied Home Security & Alarm Monitoring San Antonio

San Antonio, TX

Security System

★ 4.9(80 reviews)

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True Protection

San Antonio, TX

Security System

★ 4.8(142 reviews)

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San Antonio Alarm Company Inc.

San Antonio, TX

Security System

★ 5.0(12 reviews)

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Fort Knox Home Security and Alarm San Antonio

San Antonio, TX

Security System

★ 4.2(34 reviews)

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Chorus Security (Formerly BSG)

San Antonio, TX

Security System

★ 4.9(1576 reviews)

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316 Security & Home Automation

San Antonio, TX

Security System

★ 5.0(91 reviews)

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Guardian Protection - San Antonio, TX

San Antonio, TX

Security System

★ 4.3(484 reviews)

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APEX Smart Home

San Antonio, TX

Security System

★ 4.9(436 reviews)

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