D E A Security Systems Co., Inc.

D E A Security Systems Co., Inc. "We’re there when it matters most"
Your SF Bay Area Security Experts Since 1983

DEA Security Systems provides professional high-end residential, commercial, and enterprise security solutions throughout the San Francisco Bay Area. Our services include intrusion alarm systems; UL-certified fire alarm system design, installation, testing, inspection, and certification; access control and multi-tenant entry systems; AI-powered video surveillance; perimeter protection; intercom an

d gate entry solutions; and UL central station monitoring. We also offer Alarm.com smart security integration, guard response coordination, and advanced Shooter Detection System technology. Serving the Bay Area since 1983, DEA Security Systems delivers trusted, discreet, and custom-designed security solutions for luxury residences and businesses.

🚨 See Something. Say Something. Human Trafficking Is Real. 🚨💙 Together, awareness saves lives. 📞 If you suspect human tr...
02/05/2026

🚨 See Something. Say Something. Human Trafficking Is Real. 🚨💙 Together, awareness saves lives. 📞 If you suspect human trafficking, contact local authorities or the National Human Trafficking Hotline at 1-888-373-7888.

🎄✨ Merry Christmas from all of us at DEA Security Systems! ✨As we celebrate this special season, we want to thank our cu...
12/24/2025

🎄✨ Merry Christmas from all of us at DEA Security Systems! ✨

As we celebrate this special season, we want to thank our customers, partners, and employees for your continued trust and support. It’s because of you that we’ve been proud to protect businesses and communities for over four decades.

Wishing you and your families a joyful Christmas filled with peace, safety, and happiness. 🎁❄️

— The DEA Security Systems Family

Address

870 Old County Road
Belmont, CA
94002

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+16505080199

Website

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