What is the phone number for Security Design Systems, Inc?

(888) 737-4001. You call Security Design Systems, Inc directly; AssistAnt never sits in the middle.

Where is Security Design Systems, Inc?

Security Design Systems, Inc serves San Gabriel, CA as a service-area business (no street address shown).

Is Security Design Systems, Inc still in business?

Their website loaded when AssistAnt checked it on October 22, 2026.

Is Security Design Systems, Inc licensed and insured?

Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.

Who else is near San Gabriel?

AssistAnt lists 227 home security companies near San Gabriel. Closest to Security Design Systems, Inc: Bell Security Systems Inc (0.7 mi), Diversified Alarm Service, Inc. (1.6 mi), Ameba Technology Inc (1.6 mi).

Security Design Systems, Inc · (888) 737-4001

AssistAnt › Pro directory › San Gabriel, CA

What we do

Services

🛠️Home security systems

Checked, with dates

🧾 Trust Card · 2 receipts

Listed in the AssistAnt 24/7 directoryBusiness record from Overture Maps open business data (CDLA-Permissive-2.0).
Oct 13
Shown as open for business in the source dataOperating status in the business record.
Oct 22

Not verified yet: Owner has not confirmed this listing yet; License and insurance not reviewed by AssistAnt yet; No AssistAnt job history linked to this listing yet.

Open the full Trust Card

In their words

Customer reviews

“

No reviews here yet. Every review on this page comes from a real customer, confirmed by a text code, and stays up good or bad.

Leave a review

Where

Service area

Map of the San Gabriel, CA area (© Google). Is this your business? Claim it and put up your own photos →

About Security Design Systems, Inc

Security Design Systems, Inc is listed on AssistAnt for home security systems in San Gabriel, CA.

Built from public business information. Call to confirm before you go.

Contact

Phone: (888) 737-4001
Website: sdsalarms.com · loaded when we checked Oct 22, 2026
Location: San Gabriel, CA, 91776 (service area)
Booking: Not bookable online yet. Call the business directly.

Listed from public recordsNot verified yet. Details come from open business data and may be out of date.See the Trust Card: what we checked, how and when →

Quick facts about Security Design Systems, Inc

What is the phone number for Security Design Systems, Inc?: (888) 737-4001. You call Security Design Systems, Inc directly; AssistAnt never sits in the middle.
Where is Security Design Systems, Inc?: Security Design Systems, Inc serves San Gabriel, CA as a service-area business (no street address shown).
Is Security Design Systems, Inc still in business?: Their website loaded when AssistAnt checked it on October 22, 2026.
Is Security Design Systems, Inc licensed and insured?: Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.
Who else is near San Gabriel?: AssistAnt lists 227 home security companies near San Gabriel. Closest to Security Design Systems, Inc: Bell Security Systems Inc (0.7 mi), Diversified Alarm Service, Inc. (1.6 mi), Ameba Technology Inc (1.6 mi).

On AssistAnt 24/7

?not scored

AI Visibility Score

Not scored yet. Claimed shops get a score and a town rank.

This score measures how visible this business is to AI assistants. It is not a grade of their work. How it’s scored

What the AIs say

Not checked yet for San Gabriel. Claim this page and we’ll ask ChatGPT and Claude for you, free.

Is this your business?

Make this page yours. It’s free.

📈 Google showed this page 11 times (Oct 2 – Oct 30).

Your number confirmed, with the owner-confirmed markCustomers trust a confirmed page.
Your AI Visibility Score and town rankSee where you stand with ChatGPT and Claude.
Photos of your workYour best jobs, front and center.
Reviews from your customersEach one confirmed by a text code.
A free website at yourname.assistant247.netBuilt from your listing in a minute.

This is me: claim it free

We call your listed number (or email the address on file) with a code. About a minute. No card, ever.

Other home security companies nearby

Bell Security Systems IncTemple City, CA · 0.7 mi
Diversified Alarm Service, Inc.San Gabriel, CA · 1.6 mi
Ameba Technology IncTemple City, CA · 1.6 mi
San Marino Security SystemsSan Marino, CA · 1.8 mi
American Security ProductsEl Monte, CA · 2.7 mi
Wynstan USA - PasadenaPasadena, CA · 3.1 mi

All home security companies near San Gabriel, CA (227) →

Every trade and local freelancer in San Gabriel →

Report this listing