Show me search results for:

You can change this selection at any time via the Accredited Business toggle on the search results page.

We use cookies to give users the best content and online experience. By clicking “Accept All Cookies”, you agree to allow us to use all cookies. Visit our Privacy Policy to learn more.

Cookie Preferences

Many websites use cookies or similar tools to store information on your browser or device. We use cookies on BBB websites to remember your preferences, improve website performance and enhance user experience, and to recommend content we believe will be most relevant to you. Most cookies collect anonymous information such as how users arrive at and use the website. Some cookies are necessary to allow the website to function properly, but you may choose to not allow other types of cookies below.

Necessary Cookies

What are necessary cookies?
These cookies are necessary for the site to function and cannot be switched off in our systems. They are usually only set in response to actions made by you that amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not work. These cookies do not store any personally identifiable information.

Necessary cookies must always be enabled.

Functional Cookies

What are functional cookies?
These cookies enable the site to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

Performance Cookies

What are performance cookies?
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

Marketing Cookies

What are marketing cookies?
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant content on other sites. They do not store personal information directly, but are based on uniquely identifying your browser or device. If you do not allow these cookies, you will experience less targeted advertising.
Better Business Bureau®
Resources for Businesses
Better Business Bureau
          Category: Interlock Devices

          Showing: 283 results for Interlock Devices
          near Sunnyvale, CA

          Filter by

          Service Area

          Filter by

          Distance
          Categories
          BBB Rating
          State/Province
          Sort By
          • Distance
          • Rating

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          1780 L Old Bayshore Hwy,
          San Jose, CA 95112

          not BBB accredited
          (800) 373-5625

          Milpitas, CA 95035-6320

          Life safer

          Interlock Devices

          BBB Rating: C+
          Service Area

          Serving the following areas:

          • Hayward, CA
          not BBB accredited
          (800) 373-5625

          3475 Investment Blvd Unit 4,
          Hayward, CA 94545

          Life safer

          Interlock Devices

          BBB Rating: C+
          Service Area

          Serving the following areas:

          • Hayward, CA
          not BBB accredited
          (510) 250-0406

          23595 Cabot Blvd,
          Hayward, CA 94545-1659

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          7395 Village Parkway,
          Dublin, CA 94568

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          749 Bryant St,
          San Francisco, CA 94107

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          2623 Shattuck Ave,
          Berkeley, CA 94704

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          1363 Pine St,
          Walnut Creek, CA 94596-3634

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          49 Medway Rd,
          San Rafael, CA 94901

          Lifesafer of Northern California

          Interlock Devices

          BBB Rating: A
          Service Area

          Serving the following areas:

          • Vallejo, CA
          not BBB accredited
          (800) 210-8087

          145 Valle Vista Ave Ste E,
          Vallejo, CA 94590-2952

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          3245 N Wilson Way,
          Stockton, CA 95205

          Smart Start Ignition Interlock

          Interlock Devices

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • Napa, CA
          not BBB accredited
          (707) 225-9922

          645 Soscol Ave,
          Napa, CA 94559

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          807 Davis Street Suite J,
          Vacaville, CA 95687

          Guardian Interlock Systems

          Interlock Devices, New Auto Parts

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • IN
          • KY
          • OH
          not BBB accredited
          (513) 651-9560

          2612 Santa Rosa Ave.,
          Santa Rosa, CA 95407

          LowCostInterlock, Inc.

          Interlock Devices

          BBB Rating: D+
          not BBB accredited
          (707) 757-2403

          2875 Santa Rosa ave Ste B1,
          Santa Rosa, CA 95407

          Related Categories

          Accreditation and Ratings Overview

          Accredited BusinessAccredited Business

          Select businesses earn BBB Accreditation by undergoing a thorough evaluation and upholding the BBB Accreditation Standards.

          A+

          BBB assigns ratings from A+ (highest) to F (lowest). In some cases, BBB will not rate the business (indicated by an NR, or "No Rating") for reasons that include insufficient information about a business or ongoing review/update of the business's file.

          Didn't find the business you were looking for?

          If the business you're looking for isn't in our directory, submit a request to have it added.