Certified. Prepared. Inspection-ready.
Premier Fireproofing & Firestopping Company in New England
We help commercial construction teams stay compliant and on schedule with proven state-of-the-art systems, clear documentation, and field experience that can handle large commercial projects and smaller projects with unmatched promptness and professionalism.
Your Partner For Fireproofing in NH, MA, VT, and ME
With years of hands-on experience across commercial construction projects, Colonial Fireproofing has become a trusted partner for fireproofing and firestopping services across the region. Our approach is built for jobsite realities: fast submittal turnarounds, clear communication, and installation crews who understand schedules, inspections, and what it means to be part of a larger build team.
We’re committed to delivering work that not only meets code but also helps you pass inspection with confidence. Every project we touch is guided by certified firestop professionals and executed to meet NFCA standards, manufacturer specs, and jurisdictional requirements.
From initial consultation to closeout documentation, our team helps you solve problems before they become delays, and we’re ready when you need support mid-project. Because protecting life safety systems shouldn’t come with extra headaches.
Our Work Covers A Full Scope of Services
Spray-Applied Fire-Resistive Materials
Utilizing Isolatek systems, we provide superior SFRM applications to enhance the fire resistance of your structures, ensuring durability and safety.
UL-Compliant Firestopping
Our firestopping solutions, featuring STI and Hilti products, are designed to seal penetrations and joints, maintaining the integrity of fire-rated assemblies.
Emergency Fireproofing Services
Available on short notice, our team can handle urgent fireproofing and firestopping needs with fast response and expert solutions to keep your project moving.
The Team Behind The Work That Passes Every Inspection
At Colonial Fireproofing, our team is built for precision, professionalism, and purpose. Our company doesn’t just send out technicians. We deploy seasoned crew chiefs, certified instructors, and trained installers who know their work directly affects life safety. With access to over 3,800 UL-rated firestop assemblies, our staff delivers code-compliant systems designed specifically for your project, not patched in after the fact.
Each firestopping crew operates under the guidance of a Certified STI Instructor, ensuring every installation meets the highest technical and safety standards. That expertise shows in our results. Our work passes inspection the first time because it’s done correctly, not hastily. We keep projects on schedule without sacrificing workmanship, and we never shortcut critical details for the sake of speed.
Pricing is always scoped to the job and kept as competitive as possible. But we will not compromise. Effective fireproofing is about buying time when it matters most, preventing structural failure, and protecting lives. We take that responsibility seriously.
Rapid Response Emergency Services
When emergencies strike, whether it’s a failed inspection, a missed firestopping scope, or a last-minute schedule shift, one thing is certain: time matters. That’s why our Rapid Response Team is built for short-notice deployment and code-compliant execution.
We respond quickly, assess your fireproofing or firestopping needs on-site, and implement tested systems with documentation that passes AHJ review. Our crews are trained, certified, and familiar with UL-listed assemblies, helping you recover time, avoid costly rework, and protect the critical path of your project.
Whether it’s during off-hours or at the tail end of a schedule, we show up ready with the right systems, right people, and a focus on getting you back on track.
Licensed, Certified, Trusted
Consult-First Approach
At Colonial Fireproofing, we begin every project by understanding your unique scope and challenges. Our consult-first approach ensures project managers and facility teams get tailored recommendations aligned with schedule, compliance, and long-term performance goals.
By involving our team early in the project lifecycle, you gain proactive guidance that helps prevent rework, avoid inspection issues, and ensure code compliance from day one. We’re here to support your success at every stage.
Rely on our experience to address complex fireproofing and firestopping needs with precision. We’re dedicated to delivering results that meet and often exceed code requirements while bringing confidence to your team and your project.
Need Help on an Active Project?
Don’t leave your fireproofing and firestopping needs to chance. Our expert team is ready to provide you with a comprehensive consultation to ensure your project meets all safety and compliance standards. Contact us now to learn how we can protect your investment with our industry-leading solutions.