Fire-Rated Door Installation & Compliance

Code-Compliant Fire Door Solutions for Commercial Safety & Protection

Fire-rated doors are more than a regulatory requirement—they’re a critical line of defense that can save lives, limit property damage, and help ensure business continuity in an emergency. At Door King, based in Marlboro, NJ, we specialize in the installation, repair, and compliance testing of fire-rated doors for commercial and industrial buildings throughout New Jersey.

Our team works closely with building owners, facility managers, contractors, and safety officers to deliver door systems that meet local fire codes, UL and ASTM standards, and the unique safety requirements of your facility.

Fire-Rated Doors: Function Meets Compliance

Fire-rated doors are designed to contain fire and smoke for a specified period—typically 20, 45, 60, 90, or 180 minutes—providing critical time for evacuation and emergency response. Installed in stairwells, corridors, mechanical rooms, and building separations, these doors must not only be properly rated but installed and maintained according to strict code requirements.

Door King offers full lifecycle support, from initial installation to scheduled inspections and repairs, ensuring your fire-rated systems remain reliable and fully compliant year after year.

What We Offer

Our fire-rated door services include:

• Installation of new fire-rated hollow metal and steel doors
• Retrofit and replacement of non-compliant or damaged fire doors
• Hardware integration (closers, panic bars, smoke seals, latches)
• Fire door inspection and compliance checks
• Repair and adjustment of existing fire-rated assemblies
• UL and ASTM-rated components to meet national and local fire codes
  
  

We work with all major manufacturers and ensure that every system is labeled, documented, and installed per code. View more of our commercial door services for additional solutions.

Why Work With Door King?

Safety-First, Code-Driven Installation

Door King is committed to delivering door systems that don’t just look good—but perform under pressure. Our fire-rated installations strictly follow UL 325 and ASTM F2200 standards, along with International Building Code (IBC) and NFPA 80 requirements, providing you with peace of mind that your facility is protected and up to code.

Expertise Across Property Types

With decades of commercial and industrial experience, we serve businesses across a wide range of industries, including healthcare, education, warehousing, multi-unit housing, government facilities, and more. Each environment comes with unique fire safety needs—and we tailor our approach accordingly.

Learn more about our company on the About Us page.

Skilled Technicians & Inspection Support

Improper installation is one of the most common reasons fire-rated doors fail inspection. Our technicians are trained to install, test, and adjust fire door assemblies with precision. We also support third-party inspection compliance by making required repairs and verifying hardware ratings and frame labeling.

Total Door Solutions

In addition to fire-rated systems, Door King installs and services a complete range of commercial solutions: steel doors, automatic doors, glass storefronts, roll-up garage doors, cold storage doors, and access control systems. As a full-service provider, we’re equipped to handle everything your property needs—now and into the future.

Industries We Serve

Our fire-rated door services are trusted by:

• Schools & Universities
• Hospitals & Medical Facilities
• Manufacturing Plants & Warehouses
• Hotels & Hospitality Venues
• Office Buildings & Corporate Centers
• Apartment Buildings & Multi-Family Complexes
• Government & Municipal Buildings
  
  

We understand the varying fire code requirements for each property type and deliver custom solutions that meet or exceed compliance thresholds.

Common Fire-Rated Door Issues We Address

• Missing or incorrect fire labels
• Damaged or warped door slabs
• Improper gaps, seals, or frame clearances
• Failed latching mechanisms or closers
• Missing or non-rated hardware components
• Rust, delamination, or hinge misalignment
  
  

Timely repair of these issues is critical to passing inspections and ensuring safe evacuation routes in the event of a fire. Read more tips from our experts on the Door King blog.

Emergency Service & Maintenance Programs

Door King offers 24/7 emergency service for businesses that need urgent repairs to maintain code compliance. We also offer preventative maintenance plans to regularly inspect, test, and service your fire-rated doors—ideal for healthcare centers, schools, and high-occupancy buildings that undergo regular fire safety inspections.

Protect What Matters with Door King

Fire-rated doors play a vital role in any comprehensive safety plan—and they require expert handling. At Door King, we don’t cut corners when it comes to fire protection. We deliver secure, fully compliant installations and repairs with the documentation and care required by inspectors, insurers, and most importantly—your people.

Based in Marlboro, NJ, Door King proudly serves businesses across Monmouth, Ocean, Middlesex County, and all of New Jersey.