Mendocino CA 24-Hour Locksmith

As your local, family-owned and operated alarm, lock, and security specialist, we have been a trusted name in the community for over 40 years. 707-262-1010

When our family founded A1 Alarm & Lock over 40 years ago, all we wanted was to give our friends, neighbors and fellow community members a valuable service, and always to do the job well. Today, our business has widened its reach and gained plenty of valued customers, but that simple aim remains the same. As a family business, we understand what households, as well as businesses in the greater area, are looking for in a locksmith and security company, and we strive to always deliver on that. To that end, here is a closer look at what the team at A1 Alarm & Lock can do for your business or home.

key cutting and replacement

From access control to security cameras in Lake County, CA, our team can handle a wide range of security concerns for your home, business or vehicle. Here is a comprehensive list of our high quality, affordable services:

  • Commercial Locksmithing
  • Automotive Locksmithing
  • Safes and Vaults
  • Vehicle Transponder Keys
  • Alarm Systems
  • 24-hour Emergency Mobile Service
  • Residential Locksmithing
  • Access Control
  • Electronic Chip Keys
  • Camera Surveillance Systems
  • Home Security Maintenance
  • Laser Cut Keys


When you pay good money for a security product, you deserve to know you are getting the very best. That is why we are proud to partner with top industry brands like Honeywell-ADEMCO, AMSEC Safes, and Gardall Safes to bring you such products as security cameras, safes, alarms, and vaults.

For the very best in commercial and home security systems in Lake County, CA, A1 Alarm & Lock is the way to go. If you would like to learn more about our services, brands, and products, please give our team a call anytime at 707-262-1010, or visit our Contact Us page. We look forward to serving you!

Service Areas Include: Lakeport, Ukiah, Clearlake, Boonville, Upper Lake, Lower Lake, Nice, Lucerne, Middletown, and Mendocino CA.