Fireproofing Services
Fireproofing Services in New York City
Certified passive fire protection for steel, concrete, and critical assemblies — fully compliant with FDNY, DOB, and Local Law 26.
Comprehensive Fire Protection
NorthStar Contracting delivers end‑to‑end fireproofing for new builds, retrofits, and code‑upgrade projects across the five boroughs. Our licensed applicators use UL‑listed materials — from high‑density cementitious spray to aesthetic intumescent coatings — to ensure your structure maintains its load‑bearing integrity under extreme heat.
We coordinate with architects, engineers, and inspectors, supply submittals and test data, and handle every detail from surface prep to final thickness verification so your project sails through inspection.
Fireproofing Solutions We Offer
Cementitious Spray
High‑density fire‑resistive material (SFRM) applied to structural steel and floor assemblies for up to 4‑hour ratings.
Intumescent Coatings
Thin‑film paint that expands under heat — ideal for exposed steel in lobbies, atriums, and architecturally finished spaces.
Firestopping & Through‑Penetration Seals
UL‑approved sealants and collars to block flame, smoke, and toxic gases at MEP openings.
Spray‑Applied Thermal Insulation
Lightweight coatings for parking decks, tunnels, and retrofits requiring thermal and acoustic control.
Our 4‑Step Process
- Assessment & Scope — Site visit, steel profile analysis, and code review.
- Surface Preparation — Cleaning, priming, and masking per manufacturer specs.
- Application & QC — Precise SFRM or intumescent coating applied and thickness‑gauged.
- Final Inspection — Third‑party testing & FDNY sign‑off packaged for your records.
Compliance & Certifications
- UL Designs and ASTM E119 Fire‑Endurance Ratings
- OSHA 30‑Hour & SSP C‑3 Surface Prep Standards
- NYC Local Law 26 Retroactive Fireproofing Experts
- Member — Firestop Contractors International Association (FCIA)
Recent NYC Projects
41‑Story Mixed‑Use Tower — Brooklyn
120,000 sq ft of cementitious spray on beams, columns, and metal deck — completed ahead of schedule.
Historic Warehouse Retrofit — Queens
Intumescent coating applied to exposed steel trusses, preserving industrial aesthetics while meeting 2‑hour rating requirements.
Healthcare Facility Expansion — Manhattan
Full firestopping package for MEP penetrations across five floors; zero punch‑list items on final FDNY walk‑through.
Fireproofing FAQ
- How long does spray fireproofing take to dry?
Typically 24 hours to reach initial set, depending on humidity and thickness. - Will intumescent paint change the look of my exposed steel?
No — it can be tinted and sanded for a smooth architectural finish. - Do I need fireproofing to pass Local Law 26?
Yes, most buildings over 75 ft must fireproof structural steel and exit pathways by the LL 26 deadline.
What Clients Say
“NorthStar’s crew finished 200,000 sq ft of SFRM ahead of schedule — zero change orders and spotless inspections.”— Site Super, Tribeca High‑Rise
“Their intumescent coatings look incredible in our lobby. FDNY approved on first review.”— Facility Manager, Midtown Commercial Tower