Fire protection companies in Castro Valley, California

3 contractors with an active California CSLB C-16 Fire Protection Contractor license have a location in Castro Valley, California, as of October 24, 2026. Another 102 are located elsewhere in Alameda County.

California listings cover CSLB C-16 Fire Protection contractors (sprinkler and fixed suppression systems). Fire alarm and portable extinguisher companies are not yet included.

Located in Castro Valley

Elsewhere in Alameda County

California licenses are statewide, so these companies can also work in Castro Valley.

• A D R Fire ProtectionUnion City
• AAA Fire Protection ServicesUnion City
• Aall Fire Protection ServicesLivermore
• Advanced Fire Solutions IncFremont
• Allen B ShaoFremont
• Alliance Fire IncOakland
• Allied Fire ProtectionOakland
• American FirePleasanton
• Andrew Chih-Ping ChouUnion City
• Aqua Sense Fire ProtectionAlameda
• Barnett Plumbing & Water HeatersLivermore
• Battalion One Fire Protection IncSan Leandro
• Bay Area Fire Protection LLCLivermore
• Bay Cities Pyrotector IncEmeryville
• Bay Guard Fire ProtectionOakland
• Bay Star Fire Protection IncorporatedHayward
• Bayview Fire Protection IncSan Leandro
• Berkeley Plumbing & Heating Company IncBerkeley
• Bolls Fire And Safety IncLivermore
• Broadway Mechanical - Contractors IncOakland
• California BuildersSan Leandro
• Central Fire Services IncPleasanton
• Chou Property Management CorpUnion City
• Chow Engineering IncOakland
• Chris' Plumbing IncHayward
• Chronos Automatic Fire Protection IncOakland
• D W Nicholson CorporationHayward
• Daniel Mendoza JRDublin
• DPI Inc.Livermore
• East Bay Pump & Equipment Company IncOakland
• Edward A WolfFremont
• Exxell Fire Systems & All Industries Fire ProtectionOakland
• Facilities Protection SystemsPleasanton
• Fault Line Plumbing IncLivermore
• Fire Line Protection IncHayward
• Fire Sentry Protection Services IncDublin
• Fire Stop Sprinkler CompanyNewark
• Fire-Matic Systems IncFremont
• Fook Hong ShamOakland
• G S E Construction Company IncLivermore
• Global Fire Protection IncOakland
• Golden Bear Fire Protection IncHayward
• Golden Brick Builders IncNewark
• Golden Brick Construction IncFremont
• GP Fire ProtectionPleasanton
• Hammer & AssociatesOakland
• HIC Fire Protection IncPleasanton
• Hien HAOakland
• IFE Leasing IncDublin
• J & C Safety 1st Fire Protection IncHayward
• J D General Construction IncLivermore
• J R Pierce Plumbing CompanySan Leandro
• JAY ConstructionBerkeley
• JCS FireLivermore
• Kelly-Son & AssociatesOakland
• L J Kruse CoBerkeley
• M D F Pipeline General Engineering Contractors IncDublin
• M L S Builder IncOakland
• M L S Plumbing And Builder IncOakland
• Mallard PlumbingOakland
• MAP Plumbing IncOakland
• Marina Plumbing CompanyPleasanton
• Max ConstructionDublin
• Monterey And MWH Constructors, A Joint VentureOakland
• Monterey Mechanical CoOakland
• Otter ConstructionPleasanton
• Ouyang General Engineering IncSan Leandro
• P S Plumbing & Fire ProtectionSan Leandro
• Pacific Signaling SystemsLivermore
• Paul's PlumbingOakland
• Potter Fire Protection IncHayward
• Precision Fire ProtectionLivermore
• Protection Contracting IncPleasanton
• Pye-Barker FirePleasanton
• Real Protection IncorporatedPleasanton
• Reliable Fire Services LLCFremont
• Saehan Fire Protection IncFremont
• SAI Fire & SafetyDublin
• SAN Francisco Fire Prevention IncSan Leandro
• SAN Francisco Fire ProtectionSan Leandro
• Sciens Sabah DivisionPleasanton
• Sentinel Fire Protection IncHayward
• Sequoia Fire ProtectionOakland
• Sophos Fire Systems LLCLivermore
• Stellar BG IncOakland
• Sunny Green ConstructionSan Leandro
• Superior Automatic Sprinkler CoFremont
• Sure Fire Protection Company IncorporatedFremont
• Terrance H WolfFremont
• Terrance H Wolf JRFremont
• Tesla Construction IncFremont
• The Craig Brown Company IncHayward
• The Lunt Marymor Company IncEmeryville
• Three Alarm Electrical Systems IncLivermore
• Three Alarm Fire ProtectionLivermore
• Total Construction SolutionsBerkeley
• Transbay Fire Protection IncPleasanton
• TRI - City Fire Protection IncFremont
• Triad Fire Protection Systems IncLivermore
• V R C Fire ProtectionNewark
• Walschon Fire Protection IncPleasanton
• Westates Mechanical Corporation IncHayward

Frequently asked questions

How do I check that a fire protection company in Castro Valley is licensed?

Search the company name or license number in the California Contractors State License Board public lookup (https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx). Every company listed here shows its license numbers and expiration dates, re-checked against state records on each data refresh.

What license does a fire protection company need in California?

California contractors who lay out, fabricate and install fire protection systems (sprinklers and fixed suppression systems) must hold a CSLB C-16 Fire Protection Contractor license. C-16 does not cover electrical fire alarm systems, which are licensed under other classifications.

Does a company need to be located in Castro Valley to work there?

No. California licenses are statewide, so companies based elsewhere in Alameda County or across California can work in Castro Valley. Confirm the service area with the company.

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