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Good people doing things right.
Firestop Application


Alcal is qualified to perform most contemporary firestopping applications. As a certified installer of all leading brands, Alcal has built a reputation on high quality installations and responsive service. Alcal is not only a trusted source for general contractors, but often performs firestop work for other sub-contractors so they can focus on their core products and services.



  • Through Penetrations
  • Slab Edge at Exterior
  • CurtainWall Systems
  • Top of Wall Joints
  • Vertical Joints
  • Wall Terminations
  • Finish Applied Firestop
  • Expansion Joint Firestop



  • FM4991 Approved Applicator
  • Hilti FSC Certified Contractor
  • Specified Technologies Certified Contractor
  • Watson Bowman ACME Control Joint
  • System Certified Contractor
  • Firestop Contractors Association of America (FCIA)


Reference Projects

San Jose International Airport
Conrac Parking Structure
Skyline College
American Canyon High School
John Muir Medical Hospital
Sacramento Metropolitan Airport
Terminal B
UC Davis Cancer Center


How we work makes the difference

How we work makes the difference.



View our Prequal sheet

View our Firestop brochure