Tuolumne County • Family owned since 1998

Rock Solid Security
for your Home & Business

Security systems, cameras, and access control. Locally owned, professionally installed, and backed by a team that actually picks up the phone.

Call 209.651.0051 now to get a free quote

Ready to turn secure home or business? Tell us a bit about your property and we will provide a FREE security analysis tailored for you. Call now or fill out the form.

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51+

5.0 Google Reviews

27
Years of local security
industry experience
5
Voted “Best Alarm Company”
by The Union Democrat
A+
BBB Accredited
Licensed & Bonded
Where to Start

Two paths. One rock solid standard.

Whether it’s your family’s home or your business, we design the system around what you actually need, not a one-size-fits-all package.

Residential

Home Security

Home security with home automation for smart home in Sonora, Tuolumne and Twain Harte California

Alarms, cameras, smart locks, and 24/7 monitoring. Security built around how your household actually lives.

Commercial

Business Security

Home security with home automation for smart home in Sonora, Tuolumne and Twain Harte California

Access control, video verification, and fire systems that scale with your as your business grows.

What We Install

Everything under one roof, one point of contact

Alarm Systems

Wireless or hardwired burglar alarms with cellular monitoring and mobile control.

Security Cameras

HD video surveillance with remote viewing, motion alerts, and night vision.

Access Control

Badge, fob, or phone-based entry with scheduling and full activity reports.

Fire Alarms

Commercial-grade detection and monitoring built to code, inspected and certified.

Home Automation

Smart locks, lights, thermostats, and garage control from one app.

Intercoms

Screen visitors and enable two-way communication at any entry point.

Existing Equipment

Have an existing alarm system?

We can take over your existing equipment, upgrade you to cellular monitoring, add mobile app control, and provide responsive local service. Click below for a free consultation.

Can I use my existing alarm equipment?

Absolutely! Often times we can use your existing alarm equipment, upgrading the important components like your keypad. We will give you all the modern features that you need and save you money you’ve already invested.

What hardware can we use?

We can use door contacts, window contacts, motion detectors, existing wiring, keypad locations, door locks, thermostats, and many other components you already have. But we will upgrade the components you interact with to modernize your experience.

Business Security

Customized Security For Your Business

We design commercial security systems around your specific business needs, giving you the best security now, and room to grow later.  Call (209) 651-0051 for more information and a free security evaluation.

Alarm Systems for Businesses

Alarm Systems

Protect your assets and manage users. Let us customize a solution to meet your specific security needs of your business.

Cameras Security for Businesses

Cameras

We offer full service professional installation for video surveillance cameras and security systems.

Intercoms for Businesses

Intercoms

Allow owners, managers, and employees to screen visitors, and provide two-way communication at your business.

Access Control Systems for Businesses

Access Control

Use a badge, key fob, or phone to unlock a commercial door.  Run reports, schedule access, and manage employees.

Reviews

What the neighbors are saying

We value quality customer experience and satisfaction. That’s why we appreciate when our clients give us reviews.  Call (209) 651-0051 for more information and a free security evaluation.

  • Avatar 9138 Storquest Express Copperopolis/Copper ★★★★★ in the last week
    Granite peak is the BEST! Isaac was super helpful and got the job done quickly and had a great eye for detail! I would Highly recommend this company!
  • Avatar Karen Crane ★★★★★ 2 weeks ago
    The Granite Peak Alarm team is so professional and friendly! From quote to final install they were so great accommodating my changing install schedule, my specialized needs and making my alarm, door access & thermostat all remotely … More controlled from anywhere! You can set a schedule for limited access, temporary access and so much more. Granite Peak is the one to choose!
  • Avatar Lisa Askew ★★★★★ 3 weeks ago
    The products are top notch, the crew (Sean, Bjorn, Isaac, & Austin) are knowledgeable, polite and efficient, and the staff is helpful. I highly recommend this company for any security needs....and they can help install your StarLink! … More
  • Avatar LonestarStation61 ★★★★★ 3 weeks ago
    The system itself is AMAZING! AND the guys who came to install the system (Isaaac and Bjorn) were knowledgeable, polite, efficient and very helpful with my questions. I would highly recommend this company.
  • Avatar Jennifer ★★★★★ 4 months ago
    Excellent service, communication and professionalism! I am so happy to have their alarm service on my business location. I checked others and went with them cause they work hard and care about local small business. I can say this because … More I felt like a priority. I’m impressed!
  • Avatar J.R. Yates ★★★★★ 9 months ago
    Great company! Super knowledgable, honest and do great work. Highly recommend them for residential, commercial or industrial applications.
Community Recognition

Awards from The Union Democrat

Granite Peak Alarm receiving multiple awards from The Union Democrat for Best Alarm Company
Locally Owned & Operated

Run by a family that calls this county home

Sean started in the alarm industry in 1998 as an installer and has worked in sales, service, and management ever since. He and his wife Brandy both grew up locally, and now they’re raising their own family here too.

That’s the whole philosophy. Clean installs, real equipment, and a team that answers the phone. Not an outsourced call center three time zones away.

1998
Sean begins in the alarm industry
2018

Granite Peak Alarm founded in Sonora

Today

51 five-star reviews & growing

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Memberships