Signal Service Inc.

Over 36 years ago, 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.

For home security, Signal Service provides all the options you need to protect your property and stay safe. We understand how important it is to protect the ones you love, which is why we offer reliable solutions and friendly, knowledgeable service. From burglar alarms and fire alarms to heat, smoke, and carbon monoxide detectors, we do it all. With CCTV surveillance and video service, you can monitor your home 24/7 no matter where you are. Call Signal Service today to learn more about our home security solutions—including Video Service!

We are proud to also serve commercial and government clients. Signal Service has maintained numerous government contracts for years, demonstrating our dedication to lifetime service. In our 35 years of business, we've served many offices and businesses with commercial security systems throughout Placer, El Dorado, Amador, Calaveras and Tuolumne counties. We offer access control and temperature supervision to protect the employees and assets of your company, as well as CCTV surveillance and video service. When you're a business owner, safety is a top priority, and we provide the systems needed to ensure a safe workplace—such as burglar alarms and fire alarms. Signal Service has everything you need to provide business security in Jackson, El Dorado Hills, Sonora, Angels Camp and throughout the Sierra foothills.