Protecting Property and Saving Lives
American Empire Fire Stop, Inc. CA lic. #1089652
Protecting Property and Saving Lives
American Empire Fire Stop, Inc. CA lic. #1089652
American Empire Fire Stop, Inc. CA lic. #1089652
American Empire Fire Stop, Inc. CA lic. #1089652
American Empire Fire Stop, Inc. | Professional Fire Stopping
American Empire Fire Stop, Inc. is a specialized passive fire protection contractor serving commercial and residential construction throughout Southern California.
We deliver code-compliant fire stopping, fire caulking, acoustical sealants, intumescent products, and fireproofing solutions — installed to meet or exceed IBC, CBC, UL, and ASTM standards on every project.
With over 30 years of combined construction industry experience, our team brings verified expertise to penetration sealing, joint protection, fire-rated assemblies, and inspection-ready documentation.
Whether you're a general contractor managing a high-rise build in Los Angeles or a developer finishing a multifamily project in San Bernardino County, American Empire Fire Stop is your trusted firestop subcontractor.
Fire Protection Services in Southern California
American Empire Fire Stop, Inc. provides a full scope of passive fire protection services for commercial buildings, multifamily residential developments, healthcare facilities, educational institutions, and industrial properties throughout Southern California.
Fire Caulking & Penetration Sealing
We seal wall and floor penetrations created by electrical conduit, plumbing pipes, HVAC ductwork, and low-voltage cabling using tested, UL-classified firestop systems. Our penetration seals restore the fire-resistance rating of the assembly and maintain smoke compartmentation — critical for CBC compliance and inspection approval.
Acoustical Caulking & Joint Sealants
Our team installs acoustical sealants and architectural caulking at perimeter joints, control joints, and STC-rated wall assemblies. This work reduces sound transmission between occupancies and contributes to both life safety and building performance ratings.
Intumescent Products & Fireproofing
We install intumescent coatings, pads, and wraps that expand under heat to seal gaps, protect structural steel, and maintain the integrity of fire-rated compartments. All products are installed per manufacturer specifications and third-party tested assembly requirements.
Fire-Rated Assembly Restoration
When construction penetrations compromise existing fire-rated walls, floors, or ceilings, we restore those assemblies to their original hourly rating using listed firestop systems — maintaining your project's compliance record and protecting building occupants.
Call Us Today and See What We Can Do For Y

Mission Statement
Deliver expert fire protection, building trust with quality work that exceeds industry standards.
Vision Statement
Lead California's fire protection industry through innovation, expertise, and UL-approved systems.
Values Statement
Our core values guide every project and relationship.
Integrity | Precision | Account
Mission Statement
Deliver expert fire protection, building trust with quality work that exceeds industry standards.
Vision Statement
Lead California's fire protection industry through innovation, expertise, and UL-approved systems.
Values Statement
Our core values guide every project and relationship.
Integrity | Precision | Accountability | Respect | Expertise | Reliability | Safety First
Specialty-Only Focus.
We are not a generalist subcontractor who firestops as a side scope. Passive fire protection is our entire business — which means better installations, faster inspection turnarounds, and fewer callbacks.
Code Compliance, Every Time.
All work is installed to CBC, IBC, UL, and ASTM requirements. We provide inspection-ready documentation and can support your project's AHJ (Authority Having Jurisdiction) submittals.
30+ Years of Industry Experience.
Our team has worked on projects of every scale — from residential tract homes to large commercial builds. We understand project scheduling, trade coordination, and what GCs need to close out a job clean.
Collaborative Trade Partner.
We work directly with architects, structural engineers, electrical, plumbing, HVAC, and fire sprinkler contractors to sequence work correctly and avoid costly rework or failed inspections.
Proven Track Record Across California.
American Empire Fire Stop has delivered firestopping and passive fire protection solutions on projects throughout Los Angeles, Orange, San Bernardino, Riverside, San Diego, the Bay Area, and Sacramento Counties.

Fire stopping is no longer optional—it is a fundamental requirement in today’s building codes and life safety strategies. As the demand for fire-rated construction grows, American Empire Fire Stop Inc. stands at the forefront of passive fire protection solutions. Our proven expertise in the construction industry equips us with a deep und
Fire stopping is no longer optional—it is a fundamental requirement in today’s building codes and life safety strategies. As the demand for fire-rated construction grows, American Empire Fire Stop Inc. stands at the forefront of passive fire protection solutions. Our proven expertise in the construction industry equips us with a deep understanding of UL-listed systems and code-approved fire-rated assemblies.
We don’t just install caulking—we engineer and execute fully compliant fire stop systems tailored for each penetration type, whether it’s mechanical, electrical, plumbing, low voltage, fire sprinklers, or structural steel. Every application is backed by tested and certified systems to ensure it passes inspection the first time.
Our team is trained, experienced, and laser-focused on protecting lives and properties. We stay current with IBC, CBC, and IFC standards, and bring unmatched attention to detail on every commercial and residential project. When it comes to fire stop, we don’t cut corners—we set the standard.

At American Empire Fire Stop Inc., we believe that quality firestopping starts well before installation. That’s why we partner with our clients from the earliest stages of construction, offering expert insight during planning, coordination, and pre-construction meetings.
Throughout the build, our team applies strict quality control measur
At American Empire Fire Stop Inc., we believe that quality firestopping starts well before installation. That’s why we partner with our clients from the earliest stages of construction, offering expert insight during planning, coordination, and pre-construction meetings.
Throughout the build, our team applies strict quality control measures and adheres to UL-approved systems to ensure every fire-rated penetration meets or exceeds inspection standards.
We maintain close communication with general contractors, trades, and project managers to stay aligned on schedule, scope, and compliance requirements. Our priority is simple: achieve full firestop system integrity that passes city building inspections and Fire Marshal reviews on the first attempt.
Once the project is near completion, we perform a comprehensive final walkthrough—reviewing all rated assemblies, verifying system documentation, and addressing any last-minute adjustments. This ensures not just approval from inspectors, but complete peace of mind for our clients. When we sign off, it’s because the job is done right.

Our mission goes beyond compliance — it’s about peace of mind. We understand that every project, whether large or small, requires precision, reliability, and trust. That’s why we are committed to providing top-quality fire stopping solutions that protect buildings and the people inside them.
Customer satisfaction is at the heart of everyth
Our mission goes beyond compliance — it’s about peace of mind. We understand that every project, whether large or small, requires precision, reliability, and trust. That’s why we are committed to providing top-quality fire stopping solutions that protect buildings and the people inside them.
Customer satisfaction is at the heart of everything we do. From our first consultation to the final inspection, our team works closely with clients to ensure their needs are met with professionalism and care. We take pride in clear communication, timely project completion, and meticulous craftsmanship.
Our dedication means we don’t just deliver fire stop services — we deliver confidence, safety, and long-lasting relationships with our customers.

We are specialists in UL-approved fire-rated systems for all construction projects.
Our trained team expertly installs intumescent fire stop caulking for various penetrations.
We handle mechanical, electrical, plumbing, and low-voltage system protection with precision.
Comprehensive Sealant Solutions
Beyond fire stopping, we offer specialized applications to meet modern building codes:
Building Protection You Can Trust
Our solutions enhance both safety and comfort throughout the building envelope.
We deliver reliable protection, superior sound control, and complete weather resistance.
From new construction to renovations, we ensure every seal meets code requirements.
Trust us to make your building safer, quieter, and more protected against the elements.
We are a trusted partner to State and Federal developments for public works projects across California. Our team brings core values of integrity, precision, accountability, and respect to every job.
Public Works require strict adherence to prevailing wage laws and compliance standards. Our staff is fully trained on these requirements (eComply, LCP, DIR, manual payroll). We're registered with California's Department of Industrial Relations (DIR) for public projects.
For all public/private developments, we deliver fast, code-compliant fire stop solutions. Our work helps speed up schedules, reduce risk, and protect value in new construction and renovations.
We view every project as a partnership from start to finish.
Why General Contractors & Developers Choose American Empire Fire Stop
American Empire Fire Stop, Inc. manages the entire fire stop process from project kickoff to final inspection — with fast communication, precise site coordination, and zero-callback workmanship on every job.
Clean, Code-Compliant Installations
Every caulking and sealant application is performed to UL-listed system requirements and the highest industry standards. Our technicians work efficiently without cutting corners, delivering inspection-ready results that hold up the first time — no rework, no delays, no callbacks.
Inspection Approval, Guaranteed
We know what AHJs look for. Our team ensures all firestop and sealant work is installed, documented, and presented so city inspections are passed with confidence. General contractors and developers can submit close-out packages knowing our scope is clean.
Reliable Communication at Every Stage
We maintain clear, consistent communication from mobilization through project completion. Our team meets deadlines, responds quickly, and keeps you informed — because surprises on a job site cost everyone time and money.
Built for Any Project Size
From small retrofits and tenant improvements to large-scale commercial builds and multifamily developments, we scale our crew and resources to match your project's demands. Our standard of workmanship never changes regardless of project size.
The Standard GCs and Developers Expect
Reliability. Compliance. Communication. Clean work. That's the baseline general contractors and developers require — and it's exactly what American Empire Fire Stop delivers on every project, every time.

American Empire Fire Stop Inc. is dedicated to keeping you safe, operational, and well educated on the latest in fire stopping technology.
Home 2 Suites by Hilton
San Bernardino, California
Tell us about your project. Share details about your residential, commercial, or public infrastructure needs.
We deliver fast, accurate quotes that ensure code compliance. No delays. No headaches. Just results.
Contact us today. Let our fire stop experts solve your construction challenges.
2124 South Grove Avenue Suite B, Ontario, CA, USA
Open today | 07:00 am – 05:00 pm |

American Empire Fire Stop, Inc. CA lic. #1089652
2124 S. Grove Ave Suite B Ontario CA 91761
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