Fire-Rated Doors
We install fire-rated doors that meet local building codes and safety requirements for commercial buildings.
Fire-Rated Doors
Fire-Rated Door Installation (Code-Compliant)
Fire-rated doors are not optional — they're required by code in stairwells, corridors, mechanical rooms, and other critical locations throughout commercial buildings. But a fire-rated door only provides protection when every component is properly labeled, matched, and installed to specification. Commercial door systems from Cosello Construction cover fire-rated assemblies as part of a complete approach to every building type.
Cosello Construction installs complete fire-rated door assemblies for commercial properties across New Jersey, Pennsylvania, and Delaware. We handle everything from product selection to final installation — delivering work that's inspection-ready and fully code-compliant from day one. For properties that need both fire-rated doors and other exterior openings, Cosello Construction's commercial windows and doors page covers the full range of commercial exterior solutions.
Fire-rated door assemblies are selected according to the applicable building code, wall assembly, occupancy, and the listed door, frame, and hardware assembly. Cosello Construction typically installs commercial fire-rated door assemblies in the 20- to 90-minute range, with the required rating confirmed during project assessment. Requirements can vary by code edition and jurisdiction, so the authority having jurisdiction remains the final source for project-specific acceptance. Door repair and maintenance services from Cosello Construction can help address eligible work on existing fire-rated assemblies.
Why Fire-Rated Doors Matter
Fire Protection
Fire-rated doors contain fire and smoke to designated compartments, protecting occupants and giving first responders critical time.
Get a free fire-rated door quote →Code Compliance
Local building codes and the IBC require fire-rated doors in specific locations. We ensure your building meets every requirement.
Insurance Requirements
Many commercial insurance policies require properly installed and maintained fire-rated doors. Non-compliance can void coverage.
Liability Protection
Properly installed fire-rated assemblies protect building owners from liability in the event of a fire-related incident.
What We Install
Every component is labeled, matched, and installed to meet fire safety codes and inspection standards.
Labeled Fire-Rated Assemblies
We install complete fire-rated door assemblies with matched door, frame, and hardware selected for the project requirements. Cosello Construction typically installs 20- to 90-minute commercial assemblies; the required rating depends on the wall assembly, occupancy, code edition, jurisdiction, and listed assembly.
Code-Compliant Installation
Fire-rated doors only work when installed correctly. Our team follows manufacturer specifications and local building codes to ensure every gap, closer, and hinge meets the required standards.
Documented Installation Work
We can provide project documentation describing the selected assembly and completed installation when applicable. Installation and maintenance work follows manufacturer instructions and applicable code requirements. Final inspection and acceptance remain with the qualified inspector and authority having jurisdiction.
Our Installation Process
Every fire-rated door installation follows a proven process to ensure code compliance and inspection readiness.
1. Site Assessment & Product Selection
We evaluate the opening, wall fire-resistance rating, and occupancy type to select the correct UL- or WHI-labeled assembly. This step ensures the door, frame, and hardware all match the required fire rating for the building code jurisdiction in question.
2. Preparation & Frame Installation
Proper frame alignment, anchoring, and firestopping are critical. We install the frame per manufacturer specifications, using listed anchors and fire-rated sealant to maintain the assembly's integrity. Door frame repairs are also handled in this phase if existing openings need adjustment.
3. Door & Hardware Installation
We hang the door, install the closer, hinges, latch, and any fire-rated glazing. Every component is matched to the assembly's listing — swapping non-rated hardware voids the door's fire rating and can fail inspection. All hardware is adjusted for proper operation and positive latching.
4. Final Inspection & Documentation
Clearance checks, closer speed adjustment, label verification, and full operational testing. We provide inspection-ready paperwork for fire marshal sign-off, including manufacturer cut sheets, labeling documentation, and installation records. Routine maintenance keeps your fire-rated doors functioning properly between annual NFPA 80 inspections.
Fire-Rated Door Resources
These resources can help property managers, facility teams, and general contractors prepare for a fire-rated door project. They provide planning context, but project-specific requirements remain subject to the applicable code, manufacturer instructions, and authority having jurisdiction.
- Commercial fire door requirements in NJ and PA
Review how the opening, wall assembly, applicable code, and authority having jurisdiction shape a project.
- Fire-rated door installation for apartment buildings in NJ
Plan multifamily openings, resident coordination, documentation, and project-specific review.
- Fire-rated door maintenance checklist for NJ facilities
Review closing, latching, labels, hardware, and inspection-record considerations.
Frequently Asked Questions About Fire-Rated Doors
What NFPA 80 inspection requirements apply to fire-rated doors in NJ and PA?
NFPA 80 inspection and testing requirements apply after initial installation and at least annually under the applicable edition and local requirements. A qualified person with knowledge of the door type and operating components should complete the inspection. The review can include labels, frame condition, hardware, clearances, closing, and latching. Cosello Construction can discuss installation, repair, and maintenance needs, while the qualified inspector and authority having jurisdiction determine acceptance. For a deeper look at fire-rated door requirements, read our complete fire-rated doors guide.
Can you add a fire-rated door to an existing commercial building?
Yes. Retrofitting a fire-rated door into an existing commercial building requires matching the opening assembly to the wall's fire-resistance rating and ensuring all components - door, frame, and hardware - are compatible, labeled, and installed to current code. Cosello Construction can support the retrofit process from site assessment through installation and project documentation. Final inspection and acceptance remain with the qualified inspector and authority having jurisdiction.
What fire rating do I need for a stairwell door in a multi-story building?
The required stairwell door rating depends on the adopted code edition, the enclosure and wall assembly rating, the building occupancy, the number of stories served, sprinkler conditions, and the authority having jurisdiction. Cosello Construction can help evaluate the opening and coordinate a project-specific installation scope, but the applicable code official or authority having jurisdiction determines the required rating and acceptance.
How long does fire-rated door installation take for a commercial property?
A single fire-rated door opening may be completed in a day when site conditions, access, materials, and project approvals allow. Multi-door projects for office buildings, healthcare facilities, or schools are scoped during the site assessment with a timeline provided upfront. Cosello Construction can discuss a target schedule for the approved project scope.
Call (856) 317-1770 for a free fire-rated door consultation and code-compliance assessment for your commercial property.
Service Area
Proudly serving South Jersey, Philadelphia, and nearby Tri-State communities within our service area centered on Cherry Hill, New Jersey.
New Jersey
South Jersey, Cherry Hill, Mount Laurel, Camden County, Burlington County
Philadelphia
Northeast Philadelphia, South Philadelphia, West Philadelphia
Delaware
Northern Delaware, Wilmington area
Need Fire-Rated Doors?
Contact us for a free assessment and quote on code-compliant fire-rated door installation.