Request for Engineering Support
For engineering support, click on Submit a Request. To track all your engineering requests, click Sign In and register for an Access STI account.
1-800-992-1180 +Ext 2 Toll Free US
1-908-526-8000 +Ext 2 International
techserv@stifirestop.com Engineering Service E-Mail
Engineering Support When It Matters Most
Built for the pace of construction. Real expertise, delivered when you need it. At STI, engineering support is part of the solution. Not a follow up. Our Engineering Services team works quickly and efficiently to help you solve problems, select the right products and systems, and keep your project moving. Whether you are in design, in the field, or facing an inspection deadline, we bring practical, real-world expertise to every request. We understand the demands of the job site. Conditions shift, schedules tighten, and decisions need to be made with confidence. When that happens, you need direct access to people who know the work. That is exactly what we are built to do.
Our Commitment
- Responsive Engineering Support - We engage quickly, assess the situation, and get you moving in the right direction.
- Practical, Buildable Solutions - Grounded in real installation conditions, not theory.
- Experienced Engineers - Deep expertise in firestop systems, code compliance, and field application.
- Clear Communication - If something requires more detail or time, we keep you informed so you can plan accordingly.
Our Expert Engineering Team
Always There When You Need Us.
Monday Through Friday 7am - 7pm EST.
Saturday Emergency On-Call Hours for Contractors & Architects.
Please send inquiries to
1-800-992-1180 Engineering Services
techserv@stifirestop.com Engineering Services Email