Los Angeles County, California
Fire protection companies in Diamond Bar, California
5 contractors with an active California CSLB C-16 Fire Protection Contractor license have a location in Diamond Bar, California, as of October 24, 2026. Another 569 are located elsewhere in Los Angeles 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 Diamond Bar
Cany Fire Protection Inc
Fire sprinkler 1 active license
I S Firepro
Fire sprinkler 1 active license
JH Builder And Remodeling Inc
Fire sprinkler 1 active license
Place Construction & Development Inc
Fire sprinkler 1 active license
Tasco Pacific Fire Protection
Fire sprinkler 1 active license
Elsewhere in Los Angeles County
California licenses are statewide, so these companies can also work in Diamond Bar.
- 1st Class Fire Safety ComplianceNorth Hills
- 200 PSI Fire Protection CoNorthridge
- 24 / 7 Fire Protection Services IncorporatedSanta Fe Springs
- 3 Element Fire ProtectionRosemead
- 806 Fire Protection IncMission Hills
- A - TAK Fire ProtectionLa Crescenta
- A & A EnterprisesLa Canada
- A & A Fire ProtectionLancaster
- A B Fire Protection IncLos Angeles
- A D I Fire Protection IncSun Valley
- A H Accord Group IncSan Gabriel
- A H S ProtectionGlendale
- A K M Fire IncTarzana
- A M Construction & Plumbing CoSanta Monica
- A P F IncChatsworth
- A Plus Fire ProtectionPalmdale
- A R K Fire Protection Systems IncSun Valley
- A1 Fire Sprinkler LLCReseda
- AAA Fire Protection CoLa Verne
- AB&A Fire ProtectionPacoima
- Absolute Fire Protection IncCanoga Park
- Acco Engineered SystemsPasadena
- Acco-Wilson, IncPasadena
- Accu Fire ProtectionCanyon Country
- Ace Fire Protection ServicesNorth Hills
- Aces Fire Protection IncBurbank
- Acme Fire Protection IncLong Beach
- Advance Building Protection IncLos Angeles
- Advance Fire Team CorporationTarzana
- Advanced Fire Control IncValencia
- Advanced Fire Protection IncVan Nuys
- Affordable Fire ServicesLos Angeles
- Aizen Fire Protection IncCanoga Park
- Akron Fire Protection IncBurbank
- Alameda Construction Services IncCompton
- Albert AghakhaniGlendale
- Alfa Fire ProtectionWinnetka
- Alion Fire ProtectionArcadia
- All Area ServicesLos Angeles
- All Around Fire Protection IncSanta Fe Springs
- All City Fire IncSylmar
- All In Fire Protection IncSan Pedro
- All Quality Fire Protection IncLa Mirada
- All Systems FlowChatsworth
- Allready Fire SprinklerRowland Heights
- Alta Fire ProtectionSunland
- Alta Fire Protection IncSunland
- Amco Fire Protection IncGlendale
- American Eagle Fire ProtectionNorth Hollywood
- American Fire ProtectionLancaster
- American Fire Protection Systems IncLos Angeles
- Anchor Fire Protection IncTujunga
- Andre ST Patrick BryanInglewood
- Andrei Construction Plumbing And Fire Protection IncPanorama City
- Apex Fire ProtectionMontrose
- Apex Fire Protection IncMontrose
- Aria Fire Protection IncNorth Hills
- Arleta Fire ProtectionArleta
- Armored Universal Fire ProtectionSanta Fe Springs
- Arrow Construction & Remodeling IncLos Angeles
- Arrowhead Fire Protection IncWoodland Hills
- Arroyo Plumbing IncArcadia
- Arsen Fire ProtectionNorth Hollywood
- Artin DELGranada Hills
- AS Fire Protection IncHuntington Park
- Automated Fire ProtectionLos Angeles
- Automatic Fire Protection IncBurbank
- Avco Fire ProtectionGlendale
- Aviva ShetritCanoga Park
- AVO ConstructionGlendale
- Awin EnterprisesStudio City
- Axis Fire Protection IncGlendale
- Ayus & Co IncLos Angeles
- Aztec Fire ProtectionLos Angeles
- B & A Fire Protection IncVan Nuys
- B & L Automatic Fire Protection CoLancaster
- B & L Automatic Fire Protection IncLancaster
- B L H Construction CompanyWoodland Hills
- B V Plumbing CoPlaya Del Rey
- Bali Construction IncSo El Monte
- BAR 1 Fire Protection IncLos Angeles
- Base Line Fire Protection IncDowney
- Bear Contractors IncLos Angeles
- Bears Fire ProtectionAlhambra
- Best RemoldingAgoura Hills
- Best-Way Plumbing IncManhattan Beach
- Big Star Fire Protection IncSherman Oaks
- Blackwater Fire Protection IncLancaster
- Blaze Fire ProtectionTarzana
- BM Builders And Fire Protection IncLynwood
- BOB Peters Fire Protection IncSignal Hill
- Bob's Fire Protection ServicesPalmdale
- Boris Betoei Fire ProtectionGlendale
- BPM Fire Protection Services IncGardena
- Brackett Electric IncLa Habra Heights
- Brand Fire Protection IncBaldwin Park
- Brennan Fire And SecuritySanta Fe Springs
- Brian A MackTorrance
- Brian Holland ConstructionMalibu
- Brito Fire Protection IncWest Covina
- Browning Fire Protection IncTorrance
- Bruce Allyn Plumbing IncPomona
- Brumett Fire ProtectionCanyon Country
- BSM LLCEncino
- Builtright ConstructionCanoga Park
- Burbank Fire Protection IncGlendale
- C E G Fire Protection IncLos Angeles
- C E M Construction CorporationMontebello
- C R Hickman & CoAzusa
- C V Fire Protection IncGlendale
- CAL Tech Fire Protection IncSylmar
- California Fire Protection Sprinkler Company IncGlendale
- Calrox IncLos Angeles
- Carlos Paul DuarteGlendale
- Cass Fire Protection LLCValencia
- Castlerock BuildersTorrance
- Ccsj Development IncAlhambra
- Celco Construction CoLos Angeles
- Central Services PlumbingBurbank
- Century Fire Protection IncSunland
- Certified Fire Extinguisher Service IncWhittier
- Certified Fire Protection IncLos Angeles
- Cesrez Fire ProtectionLong Beach
- Cityco Fire ProtectionTorrance
- CM Construction IncTujunga
- Code Red Fire IncMontebello
- Command Fire Solutions IncLong Beach
- Confidence BuildersSan Marino
- Core Fire ProtectionLake Balboa
- Correa Electrical CompanyCommerce
- Craig Fire Prevention IncArcadia
- Crisco Fire Protection IncSylmar
- Curtis Watanabe PlumbingTorrance
- Custom Plumbing IncLong Beach
- Czar Fire Protection IncLos Angeles
- D & H Fire Protection IncSan Dimas
- D C S Testing & Equipment IncLawndale
- D H D Fire Protection IncGlendale
- D V B E LOW Voltage Systems IncValencia
- Dale Fire Sprinkler EngineeringLos Angeles
- Dame Fire Protection IncVan Nuys
- Dana M DEL GizziBell Canyon
- Daniel YangSan Gabriel
- David And Sons Remodeling IncEncino
- Davis Construction Plumbing IncActon
- DE Angelo Fire ProtectionLos Angeles
- DE Angelo Fire Protection IncLos Angeles
- Delta Fire Equipment IncWhittier
- Delta Fire Protection And EquipmentNorth Hollywood
- Dino Fire ProtectionGranada Hills
- DNA Real Estate ConstructionRolling Hills Estates
- DO IT All Fire ProtectionSanta Fe Springs
- DON Brandel Plumbing IncParamount
- Don's Plumbing & Heating CoLos Angeles
- DOR Fire Services IncAgua Dulce
- Doty Bros Construction CoNorwalk
- Dream Home DesignCalabasas
- Dvbe Mechanical IncLong Beach
- Dynamic Fire Protection & ServicesNorwalk
- Dynamic Fire Protection IncBurbank
- E C Fire Co IncLos Angeles
- E L C A Fire ProtectionPomona
- E Z Roth Plumbing IncLos Angeles
- Echo Fire Protection CoGlendora
- ED Fire ProtectionLancaster
- Edison Fire Protection CoLos Angeles
- Efficient Fire Protection IncLawndale
- Electric And Digital Service IncCity Of Industry
- Elite Fire Pros IncBurbank
- EM & J EnterprisesTarzana
- Encino Plumbing Services Air Cond Heating & ElectricalEncino
- Encore Fire Extinguisher Service IncLos Angeles
- Erick Bladimir Ramos MendozaNorth Hills
- Erin Associated IndustriesPanorama City
- Esparza Fire ProtectionArleta
- Esparza Fire Protection IncArleta
- Estep & Sons IncLos Angeles
- Excell Fire Protection IncNorth Hollywood
- Excellence Fire Protection IncVan Nuys
- Excellent Fire Sprinklers IncVan Nuys
- Executive Fire Protection IncLong Beach
- Express Fire Protection IncGlendale
- F A S T Fire Protection IncWhittier
- F P Fire Protection IncVan Nuys
- Faith Fire Protection CoSan Dimas
- Falcon Fire Protection IncLa Crescenta
- Favela Fire Protection IncDowney
- Fighter Fire Protection CorporationCanoga Park
- Fire & Pump Service GroupSan Pedro
- Fire ConnectionWhittier
- Fire Life SafetyLos Angeles
- Fire Mike'sLa Mirada
- Fire Pro LLCHacienda Heights
- Fire Protection And Life Safety IncLos Angeles
- Fire Protection AngelsCulver City
- Fire Protection SystemsGlendale
- Fire Protection Systems CoSun Valley
- Fire Pumps R USLos Angeles
- Fire Safe Group IncRedondo Beach
- Fire Safe Systems IncRedondo Beach
- Fire Sprinkler InstallersCovina
- Fireguard Sprinkler Systems IncDowney
- Firepro TechBurbank
- Firex Fire Protection IncAgoura Hills
- First Choice Fire ProtectionGardena
- First Fire Protection SystemsLos Angeles
- Flame Master Sprinkler Company IncWest Hills
- Fletcher's Fire ProtectionLancaster
- Fletcher's Fire ProtectionLancaster
- Flotek IncGlendale
- Flow DynamicsLos Angeles
- Fox Fire Life And Safety IncBurbank
- Frank Marrone And Sons IncEl Monte
- Frederick Dale NicasLong Beach
- Front Line FirePasadena
- Frontline Fire ProtectionLa Crescenta
- Furious Fire Systems IncCommerce
- G & A Fire Protection CorporationNorthridge
- G & Z American Fire ProtectionWest Hills
- G C Contractor IncSouth El Monte
- G F P Guard Fire Protection Services IncEncino
- G L Contractors IncLa Puente
- G L S Fire ProtectionCanyon Country
- G N A - Brook Fire Protection IncGlendora
- G S Fire Protection IncSunland
- G&G Fire Protection IncWhittier
- G&Z Fire LLCLa Puente
- Galaxy System Fire Protection IncAgoura Hills
- Gamma Builders IncStudio City
- GBS CompanyLos Angeles
- Gcbt Construction & DesignRosemead
- Gene Pira IncNorthridge
- General Fire ControlLos Angeles
- GEO H Wilson Mechanical ContractorsPasadena
- GF ConstructionSouth El Monte
- Glendale Fire Pro IncGlendale
- Glendale Fire Protection IncGlendale
- Globe Fire Protection IncWest Covina
- Gold Coast Fire ProtectionWhittier
- Golden Phoenix Construction Company IncAzusa
- Golden State Fire Protection SystemVan Nuys
- Grageda Construction CompanyLong Beach
- Greco Fire Protection IncHarbor City
- Gremeh Fire Protection IncMontrose
- GTO Fire ProtectionLos Angeles
- Guardian Fire ProtectionPanorama City
- H 2 O Fire Protection IncGlendora
- H C PlumbingSanta Clarita
- H L MOE Co IncGlendale
- Hani VahabzadehCanoga Park
- Harry H JOH Construction IncParamount
- HEC Fire Protection IncWoodland Hills
- Henry OposLos Angeles
- Hickman & SON Mechanical LLCAzusa
- HMO Fire ProtectionGlendale
- Hood DoctorsRolling Hills
- HSA Fire ProtectionLos Angeles
- HU Fire Protection IncBaldwin Park
- Hydraulic Fire ProtectionTujunga
- Hydraulic Fire ProtectionLa Crescenta
- Hydro - Matic Fire Protection IncGlendale
- Hydroflow Fire Protection And PlumbingGlendale
- Icon Fire Protection Service IncMontebello
- Iconstruct LLCLos Angeles
- Ifire Protection IncGlendale
- IMT ResidentialSherman Oaks
- Industrial Engineering TechnologiesSanta Clarita
- Infinity Fire And AlarmNorwalk
- Infinity Fire Protection IncN Hollywood
- Inland Empire Fire And Safety EnterprisesPomona
- Instant A & A Fire Protection IncCanoga Park
- Intech Fire Protection IncBurbank
- Integrated Protection Services IncNorth Hollywood
- Intelligent Fire Systems & Solutions IncValencia
- Iron MAN Construction And Development IncWest Hollywood
- Ironmen Fire Protection LLCCovina
- Ironshield Fire ProtectionLa Crescenta
- J & D Contractors IncLong Beach
- J B Builders Fire Protection IncLynwood
- J C Fire Protection SystemNorth Hollywood
- J M Carden Sprinkler Co IncLos Angeles
- J P C PlumbingTorrance
- Jace CorporationAlhambra
- JAM CorpMonrovia
- James Chung-Min LILa Puente
- James SkasLennox
- JCM Fire ProtectionLos Angeles
- Jerald LenettLos Angeles
- Jet Stream Plumbing IncVan Nuys
- Jevon Paul PlumbingLos Angeles
- John Paul Company IncTarzana
- Jonas Fire Protection IncVan Nuys
- Jonas FloresVan Nuys
- Jose I GomezLos Angeles
- JT Fire Group IncArcadia
- JTC Electric & Cooling IncArcadia
- JWJ International Powerhouse IncAlhambra
- K Line Fire Equipment Co IncHarbor City
- K&A Real Fire ProtectionSylmar
- Kaesler Plumbing IncLa Canada
- Karlo South West Plumbing IncGlendale
- Kauffman George PlumbingArcadia
- KEN LawTemple City
- Kennco Plumbing IncSanta Clarita
- Khosrow HaroonianWinnetka
- Khrimyan Fire ProtectionGlendale
- King Building ConstructionSan Gabriel
- Kings Brass & Iron Works IncSan Fernando
- Kings Fire Protection & ServicesSan Fernando
- Klein Construction IncValley Village
- KO Fire IncLos Angeles
- Kord Fire ProtectionSherman Oaks
- L A Fire Protection IncBurbank
- L A Fire Protection Service IncLos Angeles
- L C Construction & Plumbing CorpCity Of Industry
- L G S Compliance Alliance RetrofittingBurbank
- L2 Living ConsultationLa Mirada
- LA Habra Fire Protection And PlumbingWalnut
- Lamb Fire ProtectionSanta Monica
- Lara Residential Construction IncLos Angeles
- Leemen Fire Protection IncNorthridge
- Legendary Fire ElectricBurbank
- Lifeguard Fire ProtectionVan Nuys
- Lifetime Fire ProtectionRedondo Beach
- Link-Nilsen CorporationArcadia
- Lino's Fire Protection Services IncWhittier
- Lipson Plumbing & Heating IncLos Angeles
- Llano Development And ConstructionTorrance
- Logic Fire ProtectionLa Crescenta
- Lord And Sons Builders IncPasadena
- Lord And Sons Fire ProtectionPasadena
- Lord And Sons Fire Protection IncPasadena
- LOS Angeles Plumbing & Backflow Testing IncIrwindale
- Lucas PlumbingLomita
- Lyons Fire ProtectionNewhall
- M & E Best Fire Protection IncEncino
- M B B Fire ProtectionLos Angeles
- M D I Spray EquipmentPomona
- M L Macera ConstructionRedondo Beach
- Majestic Fire ProtectionValley Village
- Manuel DE Jesus LopezPalmdale
- Mark Pao-Feng KoungHacienda Heights
- Marx Brothers Fire Extinguishers Company IncLos Angeles
- Mask E D C IncSun Valley
- Maurice ZepedaBell Gardens
- Maxim Fire Protection IncReseda
- Mega Fire ProtectionGlendale
- Mehrdad HajilooSherman Oaks
- MEI Plumbing IncCanyon Country
- Melico Technology IncN Hollywood
- Merry Plumbing Co IncSan Marino
- Metro Fire Systems IncOak Park
- Michael G Roelle Plumbing & Fire Sprinkler Contractor IncIrwindale
- Michael G Roelle Plumbing And Fire Sprinkler ContractorIrwindale
- Michael R ChristensenBurbank
- Mid-Valley Automatic Fire Protection Systems IncWalnut
- Midland Contractors IncVan Nuys
- Miguel FloresWhittier
- Mike Diamond Plumbing Heating & Air ConditioningCulver City
- Mike Green Fire Equipment CompanyCanoga Park
- Mike L Huante JRHacienda Heights
- Monarch Plumbing And MechanicalBurbank
- Mr.Electric Of Woodland Hills & West LOS AngelesWoodland Hills
- MTM Construction IncCity Of Industry
- MZN Fire Protection IncPanorama City
- N S T Plumbing & Fire Protection IncLa Crescenta
- Narek ManoukianBurbank
- National Allied Fire Protection IncBurbank
- National Electrical ContractorSherman Oaks
- National State Fire & Safety Protection IncLos Angeles
- Nebshau IncCovina
- Neo-Tech Fire Protection IncShadow Hills
- Next Level Plumbing And Construction IncEl Monte
- Nielsen's Fire Protection IncPalmdale
- Nite OwlGlendale
- Nite Owl Alarm And Video IncGlendale
- NO Fire IncGlendale
- Novel Fire Protection IncLos Angeles
- NV Fire Protection System IncVan Nuys
- Omega Fire Protection Services IncWoodland Hills
- Opalee Fire Protection IncTarzana
- Ortiz FireCity Of Industry
- Ortiz Fire Protection IncPacoima
- P F P Systems Testing IncBurbank
- Pacific Bay Construction IncLawndale
- Pacific Fire ProtectionBurbank
- Pacific Fire Protection SafetyWoodland Hills
- Parsa Tech IncWest Hills
- Pastusak Plumbing IncLakewood
- Pauline LEETorrance
- Perfect Electric IncStudio City
- Persis Construction Co IncVan Nuys
- Philmont Management IncLos Angeles
- Platinum Fire Sprinklers IncReseda
- Poornazh Fire Control IncWoodland Hills
- Positive Plumbing IncGlendora
- Power Air & Fire IncReseda
- Power Air And FireReseda
- Power Fire ServicesNorth Hills
- PRC MechanicalBurbank
- Precision Plumbing & Fire IncLong Beach
- Preferred Fire Systems IncLa Verne
- Premium Fire & Safety ServicesLa Puente
- Premium Fire Protection IncAlhambra
- Prime Fire ProtectionNorthridge
- Prime Fire Protection IncGlendale
- Pro - TEK Fire Sprinkler SystemNorth Hollywood
- Proficiency Fire Protection & Plumbing IncTorrance
- Progressive Fire Protection IncArtesia
- Protech Fire Protection CoCalabasas
- Protect From FireLos Angeles
- Proven Fire ProtectionLa Mirada
- Pumpman SocalBaldwin Park
- Pyro AmericaPacoima
- Q C Splice IncHarbor City
- QI YUN ConstructionRowland Heights
- Qualco Fire Protection IncSanta Fe Springs
- Quality Electrical ServiceTarzana
- R 4 Fire Testing Services IncSylmar
- R G Fire IncSun Valley
- R&D Fire Protection IncWoodland Hills
- Radix Fire Protection IncLos Angeles
- RaffiGlendale
- Raffi GharapetianBurbank
- Rainier Group-Fire Systems ThePasadena
- Rawlings Mechanical CorporationSun Valley
- Red Eagle Fire Protection IncEncino
- Regency Shark Fire Services IncVan Nuys
- Reliable FireLos Angeles
- Reliable Fire Protection IncHawthorne
- Reliant Spray Systems IncLa Verne
- REX Fire ProtectionLa Crescenta
- Reyes Engineering CorpGlendale
- Rhino Fire ProtectionSouth Gate
- RMS ConstructionSignal Hill
- RNF ConstructionGlendale
- Robert AghakhaniGlendale
- Robert D KilgourGranada Hills
- Route 66 Fire Protection IncLa Verne
- ROY E Smith Plumbing Co IncLos Angeles
- Royal Fire ProtectionTujunga
- Royaltech ServicesLa Puente
- Rush Fire ProtectionPasadena
- S And P Fire ProtectionQuartz Hill
- S D L Fire Protection IncWhittier
- S Fire IncSanta Clarita
- S J L Plumbing & Piping IncGardena
- S O S Fire ProtectionSunland
- S O S Fire Services IncTarzana
- S R S Fire Protection IncCanoga Park
- S. Gholi Fire ProtectionGlendale
- Sabag ConstructionWest Hills
- Safeco Fire Protection IncSunland
- Salamander Fire Protection IncVan Nuys
- Sammy Steve CabreraArleta
- Sankofa CompanyInglewood
- Santa FE Fire ProtectionWhittier
- Scott ChienWalnut
- Scott Plumbing IncSanta Fe Springs
- SD Concrete Coring IncNorth Hollywood
- SD Fire GroupLynwood
- Seems Mechanical CorpHawthorne
- Seems Plumbing Co IncHawthorne
- Serjik YousefiGlendale
- Sevak ZadourianGlendale
- Sharp Fire ProtectionBurbank
- Shield Fire ProtectionWoodland Hills
- Silent Guard Building Safety Solutions IncRolling Hills Estates
- Silver Star Plumbing IncRedondo Beach
- Simon N LEEWhittier
- Singleton Fire Protection IncArleta
- Sky Water Fire Protection IncCompton
- Smart Fire & Electrical Technology IncPalmdale
- Socal Fire Guard SystemsGardena
- Socal Fire ProtectionSylmar
- Socal Hydronics & Phoenix Build ConsortiumAgoura Hills
- Sohrab HaroonianVan Nuys
- South Bay Fire IncHermosa Beach
- Southern CAL ConstructionLos Angeles
- Southwest Fire Protection CompanyMonrovia
- Spark FireDowney
- Sparks Fire ProtectionSylmar
- Specialized Fire Protection IncIndustry
- SRS Builders IncCalabasas
- Star Fire ProtectionLos Angeles
- Star Fire ProtectionBurbank
- Start Electric Services IncLake Balboa
- Statewide Fire Protection IncGlendale
- Sterling Fire Protection IncWoodland Hills
- Stop Fire ProtectionCovina
- Streamline Building CorporationSignal Hill
- Streamline Fire Protection IncSignal Hill
- Stuart Fire ProtectionLakewood
- Summit West Fire Protection CoCanyon Country
- Sun Devil ElectricGlendale
- Sure Fire Protection TeamTorrance
- Suthern Plumbing ServicesSylmar
- Swanson MechanicalCanyon Country
- T Fire SystemsCompton
- T I Industry CorporationSherman Oaks
- T O P PlumbingGranada Hills
- T1 Fire Protection IncEl Monte
- Target Fire Protection IncGlendale
- Techno - Advanced IncGlendale
- Telenet Voip IncEl Segundo
- The Fire Sprinkler Guys IncGlendale
- The Lighthart CorporationLos Angeles
- The Pros CA IncSun Valley
- The Rainier Group Fire SystemsPasadena
- Tibor ItskovichSherman Oaks
- Tier One Mechanical IncRancho Dominguez
- Tier One PlumbingLos Angeles
- TMJ Fire SprinklerCerritos
- Top Pro Energy BuildersCanoga Park
- Total Contract World IncTorrance
- Total Fire ProtectionHuntington Park
- Trade Fire Protection GroupVan Nuys
- TRI - Signal Integration IncValencia
- Triangle Fire Protection And Sprinklers IncGlendale
- Trilek Electric IncorporatedHacienda Heights
- Triumph Fire Protection IncPalmdale
- U U S Engineering IncSan Gabriel
- Ultimate Hydro Fire Protection IncSan Fernando
- UNI Fire Protection IncWoodland Hills
- Union Plumbing IncSun Valley
- United Fire & Safety CorpWest Covina
- United Fire & Safety Service CorpWest Covina
- United Fire Services IncCanoga Park
- United Ocean Fire Protection IncSouth El Monte
- Universal Technical & Construction Solutions IncBell Gardens
- Urgent Fire Protection IncGlendale
- USA Fire ProtectionGlendale
- Usfp IncSun Valley
- V & H Fire ProtectionNorth Hills
- V3 Construction IncSanta Fe Springs
- Vahak BaghramyanSun Valley
- Vaheh GinosianMontrose
- Vallen Distribution IncGardena
- Valley PlumbingCovina
- Valverde Construction IncSanta Fe Springs
- Vardanes AmbarchianGlendale
- Vasquez Fire ProtectionNorwalk
- Vebo FireCarson
- Verholtz Construction ServicesGlendora
- VHL Plumbing IncBurbank
- Victor King ConstructionLos Angeles
- Victor Plumbing IncValencia
- Walt MC Carron General ContractorWoodland Hills
- WEI JIA HuangSouth El Monte
- Weisong LiangWest Covina
- Wenfeng General EngineeringLos Angeles
- Wesco Fire Protection CoGlendale
- West Coast Chlorination IncBellflower
- West Coast Mechanical & PipingPalos Verdes Estates
- West Coast Plumbing Heating Air Cond & Water RestorationEncino
- Westar Fire Protection IncLomita
- William A RiosDowney
- William PournamdariRedondo Beach
- William Silletti & AssociatesGranada Hills
- Wilner PlumbingGranada Hills
- Wolf Fire Protection IncMontebello
- WU Kong SayatawRosemead
- WV Fire Protection IncGranada Hills
- Xclusive Fire ProtectionEncino
- Xelaju Fire Protection IncSylmar
- Yaal LevanonStudio City
- YWR Fire ProtectionSan Gabriel
- Z & S Fire EquipmentLos Angeles
- ZAP Builders IncGlendale
Managing a building here? See which fire inspections it needs and when they're due.
Build your inspection scheduleFrequently asked questions
- How do I check that a fire protection company in Diamond Bar 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 Diamond Bar to work there?
- No. California licenses are statewide, so companies based elsewhere in Los Angeles County or across California can work in Diamond Bar. Confirm the service area with the company.
Listed alphabetically. No company pays to rank higher. Machine-readable: JSON · Markdown.