Fire protection companies in Ontario, California

12 contractors with an active California CSLB C-16 Fire Protection Contractor license have a location in Ontario, California, as of October 24, 2026. Another 109 are located elsewhere in San Bernardino 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 Ontario

Elsewhere in San Bernardino County

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

• 1 Teamwork Fire Protection LLCRancho Cucamonga
• A. Upland Fire Protection IncRancho Cucamonga
• A' Plumbing And HeatingBig Bear City
• Acer Fire Protection IncMontclair
• Activated Fire ProtectionFontana
• Aegis Fire Protection Company IncSan Bernardino
• Alex Villalobos Fire ProtectionBig Bear City
• All American Backflow ServiceHesperia
• All Quality FireFontana
• Anderson Plumbing And Fire IncOak Hills
• Anthony J LiuzziYucaipa
• ARC MechanicalYucca Valley
• Art's Fire ProtectionVictorville
• Assured Fire Systems IncRedlands
• Ateck Construction IncChino
• Baldy Fire & Safety IncAlta Loma
• Barkley PlumbingLake Arrowhead
• C A Fire ProtectionVictorville
• C A Fire ServicesPhelan
• Cabral & Company IncChino Hills
• CAL - Counties Fire Protection CompanyUpland
• California Guardian IncFontana
• Champion FireRancho Cucamonga
• Champion Fire Systems IncRancho Cucamonga
• Clifford S Hancock/Fire Protection ServicesPhelan
• Cobra Fire ProtectionChino
• Curtis VanceRancho Cucamonga
• Daniel Douglas ClarkApple Valley
• Dave Figone ConstructionApple Valley
• Fire Alliance IncRancho Cucamonga
• Fire Chief Fire Protection Enterprise IncSan Bernardino
• Fire Protection SpecialistsRedlands
• Fire Safety ProtectionFontana
• Fire TechChino
• Fire X IncorporatedYucca Valley
• Fire Zone Extinguisher SystemsChino Hills
• FireshieldCrestline
• First Defense Fire ProtectionHesperia
• Fischer IncSan Bernardino
• Fischer PlumbingSan Bernardino
• Fontana Fire Equipment IncSan Bernardino
• Full Armor Fire Protection IncChino
• Geyser Sprinkler Solutions IncUpland
• Guardian South IncHighland
• Harden Fire Protection IncRancho Cucamonga
• Hedrick Fire ProtectionChino
• High Desert Fire SprinklersApple Valley
• Hung Yuan ChienChino
• I E Fire Protection IncHesperia
• Intelligent Fire SolutionsRancho Cucamonga
• J Edwards Fire Protection IncorporatedYucca Valley
• J S L Fire Sprinkler ServicePhelan
• JED AugustRancho Cucamonga
• JPM Fire ProtectionRancho Cucamonga
• JR Fire SprinklersSan Bernardino
• Jule Fire Protection Company LLCFontana
• K S Fire SprinklersYucaipa
• Keystone Builds And More IncChino Hills
• Klaus & Sons Plumbing Heating & Air ConditioningMontclair
• L & L Plumbing IncYucaipa
• Lake Arrowhead Plumbing IncLake Arrowhead
• Lance Bond Installations IncSan Bernardino
• Mag's Fire Sprinkler ProtectionRialto
• Martinez Fire Protection SystemsSan Bernardino
• Masis YadgarianFontana
• McCullough EngineeringApple Valley
• Mega Fire Protection IncFontana
• Michael MarkTwentynine Palms
• Milestone Building Solutions IncChino
• MOA Fire Sprinklers LLCColton
• Mueller ConstructionAlta Loma
• National Service & Controls IncRedlands
• Next Level Fire & Safety IncRancho Cucamonga
• Ornnell Fire Sprinkler IncGrand Terrace
• Pagel Fire ProtectionBlue Jay
• Pang Chiu ChenMontclair
• Performance Systems CoSan Bernardino
• Pro - Craft Construction IncRedlands
• Quick Response Fire Protection IncFontana
• R L Fire Protection Company IncRancho Cucamonga
• Ramco Fire SystemsChino Hills
• Red Star Fire ProtectionAlta Loma
• Redline Fire Protection Services IncColton
• Robert M NiezBig Bear City
• Ryan Fire ProtectionAlta Loma
• SC Fire Suppression IncFontana
• Scorpion Fire Protection IncApple Valley
• Secure Tech Security IncBlue Jay
• Sergio ArreolaHighland
• Smoke Busters IncRialto
• Spiro A ZafirovYucca Valley
• Summit Fire Protection IncRedlands
• Sure Safe Fire ProtectionApple Valley
• TAP CoApple Valley
• Team Fire Protection Company IncHighland
• Total Certified Plumbing Construction And Inspections LLCFontana
• TRI - County FireHesperia
• Trident Fire Protection IncHesperia
• USA Fire ProtectionChino
• USA Fire ProtectionChino
• V Fire Systems CorporationSan Bernardino
• V M B Fire Protection CoRedlands
• Valco Fire Protection IncMontclair
• Veterans Industrial Fire ProtectionHesperia
• Vizcarra Fire Protection IncSan Bernardino
• West Coast Fire IncRancho Cucamonga
• West Coast Fire Protection IncChino
• Wilfredo TorresMontclair
• Wilkes Fire Protection LLCUpland

Frequently asked questions

How do I check that a fire protection company in Ontario 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 Ontario to work there?

No. California licenses are statewide, so companies based elsewhere in San Bernardino County or across California can work in Ontario. Confirm the service area with the company.

Listed alphabetically. No company pays to rank higher. Machine-readable: JSON · Markdown.