Dempsey Alarms LLC
Licensed security system installer in San Diego, California
Dempsey Alarms LLC holds BSIS licence ACO 6771, active, licensed since 20 Aug 2009, rated 4.9 from 18 Google reviews.
Report card
- Licence activeBSIS #ACO 6771, Alarm Company Operator. Issued 20 Aug 2009, expires 31 Aug 2027.
- Licensed 17 yrsSince 20 Aug 2009.
- On the BBB, not accreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
Checked against the Bureau of Security and Investigative Services (BSIS) register on 4 Nov 2026.
Google reviews
4.9(18 reviews)Ronald Romeo★★★★★ 7 months agoView on Google
Fine security operation. I am very pleased with the quality of product, tuning their operation, and price. They made modernization of my old system affordable. Very dependable equipment and installation. Very please with the upgraded systems operation compared to the old. Now have a clean WiFi internet system, no more modems and multiple power sources requirement, very cleanly wired outcome. Best shopping price per a…
baovy phan★★★★★ 7 months agoView on Google
Reached out to Dempsey because we are a business that moved into a building that already had them, and they were super helpful in walking through how to get access and use it. It was easy to get a hold of a real person to talk to, and they were able to help me through the phone. Definitely work with them if you want a team that cares and is always there!
Dorian Lv★★★★★ a year agoView on Google
Dempsey Alarms truly exceeded my expectations with their excellent customer service. A huge shout-out to Gage, the field technician, for expertly upgrading my system with professionalism and precision. His knowledge and attention to detail made the process seamless. Also, a big thank you to Gale at the front desk for her courteous and timely follow-ups, ensuring everything was on track. Their dedication and customer-…
Ryan Sharma★★★★★ 4 years agoView on Google
I was more than satisfied with the work done by Eric Dempsey, professional, courteous and high quality work. He gives all the options to provide the security system we would need and installed it in a timely manner. The best part of Eric and his team including his secretary Kim is the response time when there is an issue. They call back immediately and take special care to address the issue in a timely manner. I had …
Brian Keefer★★★★★ 8 years agoView on Google
A good friend of mine referred me to this great Alarm company with outstanding customer service. Eric Dempsey came out promptly to give me an estimate to improve my alarm system when my previous alarm company took forever to respond to my questions about doing an upgrade. He gave me several options and provided estimates and advice. His technicians came out and did a professional installation. They were respectful an…
Read all 18 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Why it ranks #151 of 171 security system installers in San Diego
Score 82.2 / 100. Claiming this listing or using Theo never changes it. How we rank
Other top security system installers in San Diego
See all 171- 1
Low Voltage Systems
- Licence active
- 2
My Office Inc
- Licence active
- Bonded
- Workers' comp
- 3
Aire Theater Designs Inc
- Licence active
- Bonded
- Workers' comp
- 4
Land and Sea Entertainment
- Licence active
- Bonded
- Works alone
- 5
A-advanced Locksmiths
- Licence active
- Bonded
- Workers' comp
- 6
Forte
- Licence active
- Bonded
- Workers' comp