ACO #3058
Calif. State Lic.# 555389

Logo, Mountain Alarm - Residential Security Systems

21115 Longeway Road,
Suite B
Sonora, CA 95370



High-Tech Residential & Commercial Security Systems

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Protect Your Home

Do you feel safe at home? If you can't answer "yes" right away, then you need a state-of-the-art home burglar alarm from Mountain Alarm.

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Safeguard Your Office

We also sell and install a first-class selection of commercial security systems. From security cameras to access control, you are protected.

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Loyal Customer Discounts

Thanks to referrals from our satisfied customers, we've grown into the area's leader in home and business security systems.

Senior Citizen & Contractor Discounts  •  Call Today for a Free, No Obligation Estimate  •  25 Years in Business    Licensed, Insured, & Bonded



Learn About Mountain Alarm

Avoid becoming a victim of property crime with residential and commercial security systems from our company in Sonora, California. Family-owned-and-operated, Mountain Alarm is Tuolumne County's most experienced and longest established security system and fire alarm company. As the only alarm company in the county that has a brick and mortar location, we are always here for our customers. Depend on us to be courteous, respectful, and sensitive to your security needs.

Learn More about Mountain Alarm

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Request an estimate
from our company for residential and commercial
security systems that provide the ultimate in property protection.

  National Fire Protection Association (NFPA)    Find Us on Facebook   National Federation of Independent Businesses (NFIB)