Protecting our Community since 1976

In 1976, Wilbert Wilson started a small alarm company in Murphys California; today Signal Service is the largest family owned alarm company throughout the Sierra foothills. Owned and managed by Wilbert’s three sons, Andy, Mark and Will who have made Signal Service the success it is today.

We measure our success by the quality of our relationships and service to our customers, and look forward to the opportunity for continued service in the years to come

Protect your property and assets

Experience the Difference

In Business since 1976

We have 45 years of proven experience partnering with our customers to bring them the best in the security industry.

UL Listed Fire Alarm Company

When it comes to Fire Certification, we adhere to the utmost industry standards. We have worked hard to become UL Listed so that we know we are providing our customers with the best in Fire Protection

Our Monitoring Central Station is locally owned and operated

We do not outsource to another state or country. You will be speaking to a live person 24/7 to assist you with your emergency.

We employ our own Technicians

From installation to service to ongoing inspection and maintenance; we hire, train, and develop our own employees. Most alarm companies will outsource their work to sub-contractors so you never know who will be entering your home or business.

Service guarantee

We only install reputable equipment that is made in America, however, if for any reason the equipment fails due to no fault of your own, we will replace the equipment for up to one year.

Responsive Customer Service

When you call our office, you will be greeted by a live person immediately. We strive to answer the phone immediately when our customers call, and not let the phone calls go to an automated answering prompt.

Who we are

Meet the Owners


Will Wilson

Owner / Senior Service Technician
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Mark Wilson

Owner / Chief Executive Officer
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Andy Wilson

Owner / Sales Representative

Protect your property and assets

Our Mission

Signal Service provides quality security services to businesses and homes in a friendly, professional manner.

Ensuring our Customers' Protection for over 45 Years