Fire alarm companies in Pasadena, Texas

16 fire alarm companies with an active Texas SFMO Fire Alarm Certificate of Registration (ACR) have a location in Pasadena, Texas, as of October 24, 2026. 190 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 Pasadena

Elsewhere in Harris County

• 1st FP Services LLCSan Antonio
• A & A Fire and Security Solutions LLCHouston
• A & A TechnologiesCypress
• ABC Fire Systems LLCNew Braunfels
• Absolute Suppression & Fire LLCKaty
• Accutek Technologies IncHouston
• Active Fire Protection Services LLCKaty
• Admiral Fire Protection LLCPearland
• ADT LLCAustin
• Advance SecureTech LLCHouston
• Advancedtronics IncHouston
• Advantage Interests IncHouston
• Advantage Security Integration, Ltd.Houston
• Aegis Life Safety LLCHouston
• Affinity Interest Group LLCHouston
• Akisha Networks IncHouston
• Alarm TechnologiesHouston
• Alarmtechs IncKaty
• Aldine Independent School DistrictHouston
• Alert 360Fort Worth
• Alert Fire Solutions IncCypress
• Alex AIS IncJersey Village
• Alief Independent School DistrictHouston
• All Campus SecurityHouston
• All-Tec Audio & Security, Inc.Waller
• Allegiant Life Safety Systems LLCCypress
• Allied Security LLCHouston
• Always Feel SafeKaty
• American Fire Systems IncHouston
• American Sentinel Fire & Security LLCHouston
• Anadarko Industries, LLCHouston
• APi Group Life Safety USA LLCHouston
• Archangel Alarm Services LLCHumble
• ASAP Fire ProtectionHouston
• Assurance Security & Fire IncHouston
• Atlas Alarms, LLCHouston
• 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
• Benco Systems, Inc.Houston
• Blue Star Fire Protection of Texas LLCHouston
• BluWater Backflow Services LLCCypress
• BMF Technologies LLCCypress
• Bronco Electric IncMagnolia
• Bulldog Security Services LLCHouston
• Capital Fire Protection LLCHouston
• Chatman Security & FireHouston
• City Fire Protection LLCHouston
• Citywide Audio Video Security LLCCrosby
• Clark Security Systems IncHouston
• Classic Protection Systems IncHouston
• Comcast Broadband Security LLCHouston
• Comcast Home SecurityHouston
• Compass Audio And Security Systems LLCKaty
• Constant SecurityHouston
• ConvergentzHouston
• Convergint CTC Texas LLCCarrollton
• Danna Alarm Company, Inc.Houston
• DCO Enterprises IncHouston
• Design Security Controls LLCHouston
• Divine Fire Protection LLCBaytown
• Dominic Ray PenaHouston
• Duncan Security LLCHouston
• Dynasty Sound LLCHouston
• Eagle Eye Fire ProtectionHouston
• Echelon One Fire & Security LLCSpring
• Elite FSA LLCHouston
• Emergency 24, Inc.Des Plaines
• Emergency Power OFF Systems Designs LLCTomball
• Enoch Fire SolutionsChannelview
• Entech Sales & Service LLCDallas
• Entry Protection Systems LLCBellaire
• Everon LLCAustin
• Extinmarc LLCKaty
• Eyeon Integrated SystemsHouston
• F.E. Moran, Inc. Special Hazard SystemsLa Porte
• FAS Design LLCHouston
• Fire Professional Services, Inc.Houston
• Fire Protection Service, Inc.Houston
• Fire Safe Protection Services, LPHouston
• Firematic Integrated Solutions LLCHockley
• FirePro Tech LLCHouston
• First Class Alarms IncHouston
• FNS Communications LLCSpring
• Freedom Fire LLCWebster
• Frontier Fire Services, LLCTomball
• FSD Protection LLCHouston
• GAP Security LLCHouston
• GDS Design Group IncHouston
• Global Alarm & Security LLCCypress
• Global Fire Systems LLCHouston
• Grand Isle Shipyard LLCHouston
• Guardian Fire Protection Services LLCCypress
• Harmony Home TechnologiesHouston
• Harris County Fire Marshal's OfficeHumble
• Hays Electrical Services, Inc.Houston
• HHS Security Services LLCCypress
• Hi-Tek Sound & Signal, Inc.Houston
• Honeywell International IncSan Antonio
• Houston Fire & SecurityHumble
• IconHouston
• Ievolve Technology LLCCypress
• Industrial Fire Equipment and Service LLCHouston
• Infinity Security Group, Inc.Houston
• Initial Security System, Inc.Tomball
• Iwatch LLCTomball
• J&K Electronics Security Company LLCSpring
• Jayme ChimeneCypress
• Jimmy Wayne KirkHouston
• Johnson Controls Fire Protection LPHouston
• Johnson Controls Security Solutions LLCFort Worth
• Jonathan Joel SotoDeer Park
• JSG Fire & SafetyHouston
• Juggernaut LLCHouston
• Katy Independent School DistrictKaty
• Kauffman CompanyHouston
• KFS Dezign LLCCypress
• Kilgore Industries LPHouston
• Knight Industries LLCHouston
• Legacy Fire & Safety IncHouston
• Lemos Fire Protection LLCHouston
• Marmic Fire and Safety Co IncJoplin
• Mercury Fire & Security Consultants LLCSpring
• MHC Datacomm IncOrange
• Mikeska Security, Inc.Cypress
• Mizrahi Enterprises LLCHouston
• MLN Fire Protection CompanyStafford
• Modern System Concepts IncHouston
• Mr. Fire Protection LLCHouston
• MTZ SystemsSpring
• Murray Systems, Inc.Katy
• Nassau Bay Fire Protection LLCBaytown
• Nations Best Fire Protection LLCSeabrook
• New AGE Satellites & Security LLCHouston
• New Generation Technologies LLCHouston
• Omega Fire ProtectionHouston
• Only Fire ProtectionCypress
• ORR Protection Systems, IncLouisville
• Pavion CorpSan Antonio
• Penny Lane Enterprises LLCHouston
• Precise Fire LLCKaty
• Primary Fire Services LLCHouston
• Prime Fire Protection Services LLCCypress
• Putnam Fire and Security LLCHumble
• Pye-Barker Fire & Safety LLCWaco
• QSS, LCHouston
• RDI Life Safety LLCConroe
• Relax Audio Visual LLCHouston
• Reliable Fire ProtectionHouston
• RhcsHouston
• Right Tech Fire LLCHouston
• Robert Alan SteeleHouston
• RZR Systems LLCPorter
• Safety Building Solutions LLCCypress
• Securac, IncorporatedHuffman
• Securecomm Technologies Inc.Houston
• Securetech LLCSpring
• Securitas Technology CorporationIrving
• Settle Security Services, Inc.Webster
• Shrink Stoppers, LLCHouston
• Siemens Industry IncIrving
• SiteFix Technology Concept LLCHouston
• Smart Technologies Solutions LLCKaty
• Southeast Security Solutions LLCHouston
• Southern Detection Systems LLCSpring
• Space City Fire & Safety LLCLa Porte
• Spartan Fire ProtectionHouston
• Specialty Fire Services LLCHouston
• Spring Branch ISDHouston
• Spring Independent School DistrictHouston
• State Alarm and Security LLCCypress
• Sugarmill Investments IncHouston
• Summit Alarm Systems, Inc.Houston
• Sungrow USA CorporationHouston
• Tdindustries, Inc.Dallas
• Teamwired, LLC.Houston
• Texas Eagle Solutions LLCHouston
• Texas Fire Pros Group LLCWebster
• Texas Firelogix LLCHumble
• Thompson Safety LLCHouston
• TK Fire & Security Design LLCHouston
• Triple V IncHouston
• TX Fire Pros IncHumble
• Viper Fire Design LLCTomball
• VSC Fire & Security, Inc.Texarkana
• Wilson Fire Equipment & Service Co., Inc.Houston
• ZA Service LLCHouston

Also in Pasadena: Fire sprinkler contractors · Fire extinguisher companies

Frequently asked questions

How do I check that a fire alarm company in Pasadena 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 Pasadena to work there?

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

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