Fire alarm companies in Houston, Texas

132 fire alarm companies with an active Texas SFMO Fire Alarm Certificate of Registration (ACR) have a location in Houston, Texas, as of October 24, 2026. 86 more are elsewhere in Harris County.

Sale, installation, inspection, testing, monitoring and service of fire alarm and detection systems. Each company below holds an active Texas SFMO Fire Alarm Certificate of Registration (ACR).

Located in Houston

Elsewhere in Harris County

• 1st FP Services LLCSan Antonio
• A & A TechnologiesCypress
• Able Fire Protection LLCPasadena
• Absolute Suppression & Fire LLCKaty
• Active Fire Protection Services LLCKaty
• Admiral Fire Protection LLCPearland
• Alarmtechs IncKaty
• Alert Fire Solutions IncCypress
• Alex AIS IncJersey Village
• All-Tec Audio & Security, Inc.Waller
• Allegiant Life Safety Systems LLCCypress
• Always Feel SafeKaty
• Archangel Alarm Services LLCHumble
• ATR Tech Works LLCKaty
• Austin Fire Systems LLCPrairieville
• Automatic Fire Protection, LLCSan Angelo
• Az-Tech Fire & Security LLCChannelview
• BareTech Safety LLCKaty
• Battleground Fire Protection LLCDeer Park
• BluWater Backflow Services LLCCypress
• BMF Technologies LLCCypress
• Bronco Electric IncMagnolia
• Charter Fire Protection IncPasadena
• Citywide Audio Video Security LLCCrosby
• Compass Audio And Security Systems LLCKaty
• Divine Fire Protection LLCBaytown
• Echelon One Fire & Security LLCSpring
• Elite Security SystemsPasadena
• Emergency Power OFF Systems Designs LLCTomball
• Enoch Fire SolutionsChannelview
• Entry Protection Systems LLCBellaire
• Extinmarc LLCKaty
• F.E. Moran, Inc. Special Hazard SystemsLa Porte
• Fire Alarm & Suppression of Texas LLCPasadena
• Firematic Integrated Solutions LLCHockley
• FNS Communications LLCSpring
• Freedom Fire LLCWebster
• Frontier Fire Services, LLCTomball
• Global Alarm & Security LLCCypress
• Guardian Fire Protection Services LLCCypress
• Gulf Coast Industrial Fire Protection LLCPasadena
• Harris County Fire Marshal's OfficeHumble
• HHS Security Services LLCCypress
• Houston Fire & SecurityHumble
• Houston Fire Protection ServicesPasadena
• Ievolve Technology LLCCypress
• Initial Security System, Inc.Tomball
• Iwatch LLCTomball
• J&K Electronics Security Company LLCSpring
• Jayme ChimeneCypress
• Jonathan Joel SotoDeer Park
• Katy Independent School DistrictKaty
• KFS Dezign LLCCypress
• Marmic Fire and Safety Co IncJoplin
• Mercury Fire & Security Consultants LLCSpring
• MHC Datacomm IncOrange
• Mikeska Security, Inc.Cypress
• MLN Fire Protection CompanyStafford
• MTZ SystemsSpring
• Murray Systems, Inc.Katy
• Nassau Bay Fire Protection LLCBaytown
• Nations Best Fire Protection LLCSeabrook
• Only Fire ProtectionCypress
• Pavion CorpSan Antonio
• Precise Fire LLCKaty
• Prime Fire Protection Services LLCCypress
• Putnam Fire and Security LLCHumble
• RDI Life Safety LLCConroe
• RZR Systems LLCPorter
• Safety Building Solutions LLCCypress
• Securac, IncorporatedHuffman
• Securetech LLCSpring
• Settle Security Services, Inc.Webster
• Smart Technologies Solutions LLCKaty
• Southern Detection Systems LLCSpring
• Space City Fire & Safety LLCLa Porte
• State Alarm and Security LLCCypress
• Texas Fire Pros Group LLCWebster
• Texas Firelogix LLCHumble
• Total Safety Us IncPasadena
• TX Fire Pros IncHumble
• United SafetyPasadena
• Vallen Distribution IncPasadena
• Viking Automatic Sprinkler CompanyPasadena
• VIP Fire LLCPasadena
• Viper Fire Design LLCTomball

Also in Houston: Fire sprinkler contractors · Fire extinguisher companies

Frequently asked questions

How do I check that a fire alarm company in Houston is licensed?

Search the company name or registration number in the Texas State Fire Marshal's Office public lookup (https://appscenter.tdi.texas.gov/reports/p/sfmo). Every company listed here shows its registration numbers and expiration dates, re-checked against state records on each data refresh.

What license does a fire alarm company need in Texas?

Companies doing this work must hold a Texas SFMO Fire Alarm Certificate of Registration (ACR). Texas requires a State Fire Marshal's Office certificate of registration for each type of work: fire alarm (ACR), fire extinguisher (ECR) and fire sprinkler (SCR). Individual technicians must also hold SFMO licenses.

Does a company need to be located in Houston to work there?

No. Texas registrations are statewide, so companies based elsewhere in Harris County or across Texas can work in Houston. Confirm the service area with the company.

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