Hollow Metal Door Repair Ottawa

Hollow metal doors — steel face sheets over a steel or composite core, installed in steel frames — are the dominant commercial door type in Ottawa’s institutional, industrial, and back-of-house applications. Ottawa’s hospitals, schools, government buildings, office towers, apartment buildings, and commercial warehouses all use hollow metal doors in their non-public-facing locations. These doors are built to a higher standard of durability than residential or aluminum commercial doors, but that durability is tested daily by the environments they’re installed in — loading docks where forklifts clip them, stairwells where maintenance carts hit them, corridors where they’re propped open improperly for years, and the Ottawa winter’s thermal cycling that works on frame seals and closer hardware through every season.

Hollow metal door damage types and repair approaches

Dent and panel damage is the most common hollow metal door repair call from Ottawa’s industrial and back-of-house commercial environments. A hollow metal door panel that has been struck by a cart, a forklift, or a delivery vehicle has a dent in the steel face sheet that may range from a minor cosmetic indent to a significant structural deformation. Minor dents in the panel face can be addressed without door replacement — using metal working techniques to push the steel back to profile and refinishing the affected area. Significant deformation that has distorted the door’s perimeter or affected the hinge or lock mortise areas requires assessment of whether the door can be repaired in place or requires panel replacement.

The critical distinction in hollow metal dent repair is whether the deformation has affected the door’s fire rating integrity. A fire-rated hollow metal door panel that has been deformed may no longer provide the fire resistance its rating requires — the core material may have been displaced, the perimeter seals may have lost contact, or the frame-to-door relationship may have changed in ways that affect the fire assembly’s performance. We assess fire-rated hollow metal doors for both functional damage and potential fire rating impact before any repair decision.

Frame damage and realignment is the second most common hollow metal door repair situation in Ottawa commercial buildings. A hollow metal frame — the steel unit that is welded or assembled into the masonry or stud wall opening — can be damaged by the same impact forces that damage door panels, and frame damage directly affects the door’s operation. A bent frame head produces a door that binds across the top. A displaced frame jamb produces a door that won’t latch because the strike position has moved relative to the lock bolt. We realign hollow metal frames, using hydraulic spreading tools where frame distortion has narrowed the opening, and weld or mechanically repair damaged frame sections where structural repair is possible.

Hinge replacement on hollow metal doors requires understanding the weld-in hinge condition that most Ottawa institutional hollow metal doors use. Unlike residential doors where hinges are surface-mounted with screws, hollow metal doors typically use hinges that are welded to the door and frame during manufacture, or that are mortised into the door and frame with a very close tolerance. Replacing a welded hinge on a hollow metal door requires cutting out the damaged hinge, fitting a replacement hinge of matching leaf size and knuckle position, and welding the new hinge to the door panel and frame. Mismatched hinge replacement — using a hinge of slightly different dimensions or knuckle position — produces a door that hangs out of true and won’t seal correctly.

Lock mortise repair on hollow metal doors addresses the situation where the mortise pocket for a cylindrical or mortise lock has been damaged — typically by a forced entry attempt that has distorted the lock pocket, or by years of use that has allowed the lock body to move within the mortise. A loose lock body in a hollow metal door produces an entry that feels insecure because it is — the lock is not held in the position that its installation requires. We weld steel inserts into damaged mortise pockets to restore the correct pocket geometry before reinstalling the lock.

Closer arm wear and frame header damage occurs in Ottawa hollow metal door applications where the door closer is mounted in the frame header position — the standard mounting for hollow metal stairwell and corridor doors. Years of closer arm cycling produce micro-cracking around the closer bracket mounting welds, which eventually allows the bracket to move under load. We reweld closer mounting brackets and replace worn arm-to-frame connections on Ottawa institutional hollow metal doors.

Fire-rated hollow metal doors in Ottawa buildings

From back-of-house stairwells to architectural steel entries — see our commercial steel door work.

Ottawa’s commercial and institutional building stock has a significant inventory of fire-rated hollow metal door assemblies — the stairwell enclosure doors in multi-storey buildings, the corridor fire separations in healthcare facilities, the fire separations between occupancies in mixed-use buildings. These assemblies are listed and labeled for a specific fire resistance rating — 20-minute, 45-minute, 60-minute, 90-minute, or 3-hour — and that rating applies to the complete assembly: door, frame, hardware, and glazing if present.

Maintaining the fire rating of a hollow metal assembly through its service life requires understanding what does and doesn’t compromise the rating. A closer bracket that has been moved from its listed position to a more convenient mounting location may have void the fire listing. A vision panel that was added to a fire-rated hollow metal door without using listed fire-rated glazing voids the assembly. We assess and advise on fire rating implications before any repair or modification to Ottawa fire-rated hollow metal door assemblies.

Ottawa institutional environments — hospitals, schools and government buildings

The hollow metal door inventory in Ottawa’s hospitals, schools, and government buildings represents some of the most demanding commercial door applications in the city. Ottawa Hospital corridor doors handle thousands of daily transits by hospital beds, supply carts, and visitors. Ottawa school stairwell doors are propped open with wedges, kicked closed by students, and subject to the specific abuse patterns that high-occupancy institutional environments produce. Federal government buildings on Wellington and Sparks have security requirements layered on top of standard commercial door performance.

We service hollow metal doors in Ottawa’s institutional buildings with the access coordination, security protocol compliance, and documentation standards that these environments require. We carry federal government building entry requirements on file for our Ottawa institutional clients and understand the coordination process that institutional building access requires.