Orange County's Leading Firestopping Contractors

What is Firestopping?

Your Building's First Line of Defense Against Fire Spread

Firestopping is a critical fire protection measure that contains fire and smoke within rated assemblies by applying tested, fire-rated materials and systems. This life safety requirement prevents fire, smoke, and toxic gases from spreading through openings in fire-resistive construction, protecting building occupants and maintaining compartmentalization during a fire event.

We demonstrate the highest degree of personal responsibility, pride and integrity in our work. As a firestopping specialty contractor, our field technicians are trained and knowledgeable in all U.L. and Inertek approved systems. Our goal is to relieve our customers of liability and to increase their profits by reducing the possibility of delays due to failed inspections.

Industries & Projects We Serve

How We Protect Your Building

Full-Service Firestopping Expertise

Our 4-Step Fire-Stopping Process

We are the industry leaders, demonstrating the highest degree of personal responsibility pride and integrity in our work. As a firestopping specialty contractor, our field technicians are trained and knowledgeable in all U.L. and Inertek approved systems. Our goal is to relieve our customers of liability and to increase their profits by reducing the possibility of delays due to failed inspections.

Contact Us

We collaborate with your design team to create detailed firestopping plans tailored to your building.

Evaluation & Planning

Our team conducts a comprehensive site assessment of all penetrations, joints, and fire barriers.

System Installation

Expert installation of certified fire protection systems that meet all standards &  minimize project delays.

Certified Completion

Complete documentation and labeling to ensure first-time inspection approval.

From Fire Barriers to Seismic Joints - Total Building Protection

Get expert fire protection and specialty systems for your next project.

Quality Installation You Can Trust

Firestopping Services

Karcher Interior Systems, Inc. provides system installation for:

What We Provide

What We Bring to Your Job Site

Contact Us

Start Your Project

675 North Eckhoff Street
Suite F Orange, CA 92868

Ready to protect your building? Our certified team handles everything from firestopping to seismic joints.


Our Industry Partners

Our Strategic Partners in Fire Protection