Proudly Serving
Northern California, Sierra Nevada Mountains, Greater Sacramento, San Joaquin Valley, and Bay Area
Signal Service began in the small Sierra Nevada Mountain town of Murphys, California but over the past 45 years has expanded throughout all Northern California. We measure our success by the quality of our relationships and the service we provide our customers. Our professional team has years of experience, and as a family business, you still receive warm and friendly service. Our technicians live throughout our service territory to promptly respond to any service issue.
Counties we currently service: San Francisco, San Mateo, Sonoma, Marin, Napa, Yolo, Solano, Contra Costa, Alameda, Santa Clara, Stanislaus, San Joaquin, Sacramento, Sutter, Placer, El Dorado, Amador, Alpine, Calaveras, Tuolumne, Mariposa and Merced.

Local & Family Owned Business Since 1979






Residential

Commercial & Business

Government Buildings

Hospitals & Clinics

Schools Districts
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OUR CLIENTS
Who We Serve

Aamdor County Unified School District

Adventist Health Sonora

Barsotti

Ironestone Vineyards

Sutter Health Hospital

Skinner Vineyards & Winery

El Dorado County Office of Education

Marshall Medical Center

Sierra Hills Food Market
