A fire door is a tested assembly rather than just a door: the leaf, frame, hinges, closer, latching and any glazing all form one rated system. Accurate Commercial Doors installs and repairs steel, glass and wooden fire doors for businesses across southern Wisconsin and northern Illinois.
A fire door only performs if the whole assembly is intact and correctly fitted. The leaf, the frame it sits in, the hinges, the self-closing device, the latch and any glazing are one system. Alter or neglect one part of it and the assembly no longer behaves the way it was tested, which is why fire door work is as much about the frame, the hardware and the gaps as it is about the door itself.
Accurate Commercial Doors supplies, installs and repairs commercial fire doors in steel, glass and wood for businesses across southern Wisconsin and northern Illinois. The work covers new openings as well as existing doors that have drifted out of adjustment, been damaged, or had their closing and latching hardware removed over the years.
| Fire door type | Where it suits | The trade-off to weigh |
|---|---|---|
| Steel | Industrial facilities, warehouses, storage rooms and commercial kitchens | Very durable but visually heavy, and unsuitable where the opening needs to be seen through |
| Glass | Offices, hotels, lobbies and retail spaces that need sightlines kept open | Keeps the view but requires rated glazing and the frame detail that goes with it |
| Wooden | Restaurants, hotels and older buildings where appearance matters | Matches the interior but is more vulnerable to water at the base and to careless hardware cuts |
What separates a fire door from an ordinary door
An ordinary commercial door is judged on how well it closes, secures and wears. A fire door carries an additional job: holding back fire and smoke for a period so that occupants can leave and the building can be protected. That job depends on the assembly being complete and correctly installed, not on the leaf alone.
The practical consequence is that a fire door is not a door you can modify freely. Cutting a hole for a piece of hardware, replacing a closer with a different model, swapping in unlisted glazing or removing a latch all take the assembly away from what was tested. A rated door normally carries identification confirming what it is; that identification is the evidence of what the assembly is rated for, and it should never be painted over, removed or obscured. [Insert source: labeling and listing requirements for fire door assemblies]
Steel fire doors
Steel fire doors are the workhorse of commercial fire separation. They are chosen for durability as much as for fire performance, because they stand up to impact, heavy traffic and rough handling in service areas where a lighter door would be damaged within a season.
They suit high-risk and back-of-house locations: industrial facilities, warehouses, storage rooms and commercial kitchens, where a door has to survive being pushed through with carts and equipment while still closing and latching reliably.
Glass fire doors
Glass fire doors combine a clear view with fire resistance, which is why they appear where a solid door would make a space feel closed in or would hide activity that needs to be visible. Office buildings, hotels, lobbies and retail spaces use them to keep sightlines open without giving up the separation the opening requires.
The trade-off is that glass in a rated assembly is a specialist product, not a substitute for ordinary glass. Fire-rated glazing is a distinct material with its own listing and its own frame and glazing requirements, and it cannot be swapped for standard tempered or laminated glass without breaking the assembly. [Insert source: permitted glazing materials and sizes for fire door assemblies]
Wooden fire doors
Wooden fire doors are engineered to provide fire separation while keeping the appearance of a timber door. That makes them the usual choice where a steel door would look out of place against the rest of the interior: upscale restaurants, hotels, and older buildings where the entrance is part of the character of the space.
A wooden fire door is still a rated component with a specific construction, core and edge detail. It behaves differently from a solid timber door under fire conditions, and it is vulnerable to the two things that ruin timber doors in commercial service: water at the base and hardware cut in without regard for the door construction.
Why fire doors fail an inspection or a survey
Fire doors rarely fail because the leaf itself has worn out. They fail because something in the assembly has been changed, removed or allowed to deteriorate, usually for a practical reason that seemed reasonable at the time.
- The door is propped or wedged open, taking the assembly out of service entirely.
- The closer has been disconnected, removed, or replaced with one that cannot pull the door fully closed and latch it.
- The latch or exit device is missing, damaged or not engaging, so the door will not stay closed.
- The label or identification has been painted over, removed, or lost during a previous redecoration.
- Glazing has been replaced with a material that does not belong in the assembly.
- Holes have been cut for hardware, viewers or cabling without regard to what the assembly permits.
- Gaps have opened up between the leaf and the frame after building movement, or the door has dropped on worn hinges.
- Seals and smoke gaskets are missing, painted over, damaged, or have hardened and no longer seal.
- The frame has been packed, shimmed or altered, or the anchors have loosened so the frame no longer holds the door square.
What fire door installation has to get right
Most of the durability of a fire door is decided before the leaf goes on. The frame has to be set plumb and square and anchored so it stays that way, because a frame that twists will pull the door out of alignment and stop it latching no matter how carefully the hardware is adjusted.
Hardware preparation has to match the door and the frame it is going into, including the hinge positions, the closer mounting, the latching and the coordination between the door and any frame-mounted component. Clearances around the leaf are part of the assembly, not a cosmetic detail. The order of work is straightforward but unforgiving: set and anchor the frame, hang and fit the leaf, install and adjust the closing and latching hardware, then verify that the door closes and latches from every position without assistance.
Repair: restoring the assembly, not just the door
Much fire door repair is hardware work: replacing a failed closer, renewing worn hinges, restoring a latch or exit device that has stopped engaging, correcting a door that has dropped, and renewing seals that have perished. All of those can bring an existing assembly back into reliable service, provided the leaf and frame are still sound.
What cannot be done is to repair a fire door into a rated door. A leaf that has been cut, delaminated, or damaged beyond its edge construction cannot be patched back into a tested assembly, and a frame that has corroded through cannot be filled and painted back into one. When that is the situation, the honest answer is a replacement leaf or a replacement assembly, and we will say so rather than carry out a repair that leaves the building with a door that looks correct and performs as nothing.
How Wisconsin and Illinois fire door requirements differ
Building and fire codes are adopted and amended by each state and enforced locally, so requirements differ between Wisconsin and Illinois and can differ again between one municipality and the next. Nothing on this page should be read as a statement of what applies to a particular building.
The requirement that governs a specific opening is set by the authority having jurisdiction for that address, and it is normally expressed through the adopted code edition, the occupancy, the rating of the wall the door sits in, and the listing of the assembly that was installed. [Insert source: adopted fire and building code editions and any local amendments for the Wisconsin and Illinois jurisdictions served]
Fire door service area and emergency call-out
We serve businesses across southern Wisconsin and northern Illinois, including Delavan, Elkhorn, Walworth, East Troy, Burlington, Genoa City, Twin Lakes, Whitewater, Lake Geneva, Williams Bay and Fontana-On-Geneva Lake in Wisconsin, and Hebron in Illinois.
Office hours are Monday to Friday 08:00 to 17:00 and Saturday 09:00 to 17:00, with Sunday closed. Emergency call-out is a separate service available 24 hours a day for fire doors that have been damaged, are wedged or will not latch, or have been left unable to close. Call (224) 833-4828 or (262) 277-9190, or email info@accuratecommercialdoors.com.
Service areas for fire doors
We cover every town on our list across Southern Wisconsin and Northern Illinois. These are a few of them.
- Fire Doors in Arlington Heights, IL
- Fire Doors in Barrington, IL
- Fire Doors in Barrington Hills, IL
- Fire Doors in Burlington, WI
- Fire Doors in Campton Hills, IL
- Fire Doors in Carpentersville, IL
Frequently asked questions
What exactly is a fire door?
A fire door is a tested assembly, not a single product. The leaf, frame, hinges, closer, latching and any glazing are all part of the system, and each component has to belong to the assembly it is fitted to. Removing or substituting one part takes the door away from what was tested.
Can a fire door be repaired, or does it have to be replaced?
Hardware and adjustment faults can be repaired: a failed closer, worn hinges, a latch that will not engage, a door that has dropped, or seals that have perished. A leaf that has been cut or has delaminated, or a frame that has corroded through, cannot be repaired back into a tested assembly, and replacement is the correct answer.
Are fire door requirements the same in Wisconsin and Illinois?
No. Building and fire codes are adopted and amended state by state and enforced locally, so the two states are not identical and individual municipalities can differ again. The requirement for a specific door is set by the authority having jurisdiction for that address. [Insert source: adopted code editions and local amendments]
Do you attend fire door problems outside office hours?
Emergency call-out is available 24 hours a day and is separate from our office hours of Monday to Friday 08:00 to 17:00 and Saturday 09:00 to 17:00, with Sunday closed. A fire door that has been damaged or cannot close and latch is treated as an emergency, because the opening is left unprotected.