What Goes Wrong With Commercial Steel Doors?
Steel doors on GTA warehouses and plazas live a hard life. Road salt and slush sit against the bottom rail all winter, and prime-coat doors rust from the bottom up. Uninsulated doors sweat and frost on the inside. Forklifts, carts and dumpsters dent the skin until it separates from the core, and the door starts to sag on its hinges. Eventually the door either will not close or will not stop drafts, and staff start propping or chaining it.
When the frame is still sound, there is no reason to rip it out. A direct swap is faster, cheaper and less disruptive.
What Is Included in Steel Door Replacement?
A new hollow metal leaf fitted to your existing steel frame by our Toronto commercial door installation crew, with hardware transferred or upgraded and the weather package renewed on exterior doors.
The written CAD spec lists:
- Leaf: 16-gauge galvannealed or 18-gauge prime-coat steel
- Core: polyurethane insulated, polystyrene or steel-stiffened
- Preps: hinge reinforcement, lock and strike locations matched to the frame
- Weather package: door sweep, thermal threshold, weatherstrip
- Hardware: transfer, upgrade or new
- Frame: confirmed reuse after inspection
Technician confirms specs and price at your free on-site measure.
Types of Steel Door Swaps
Exterior service and man-doors
Galvanized, insulated, with sweeps and thresholds. The most common swap on plazas and warehouses.
Interior corridor and utility doors
Prime-coat leaves in sound frames, often during a building refresh.
Pairs
Double steel doors with astragals, typical at loading areas and mechanical rooms.
How Much Does Steel Door Replacement Cost in Toronto?
| Scope | Typical range | Main cost drivers |
|---|---|---|
| Interior prime-coat leaf, hardware transferred | $1,600-$2,400 | Size, preps |
| Exterior galvanized insulated leaf, new weather package | $2,400-$3,600 | Core, threshold |
| Exterior leaf with new exit device and closer | $3,200-$4,500 | Device, closer, pair |
When Should a Steel Door Be Replaced?
- The bottom rail or skin is rusted through
- The door sags or the skin has delaminated
- Daylight shows around or under the door
- The door is uninsulated on a heated space
- Repeated repairs have not fixed latching
Door Swap vs Door and Frame
A door swap keeps wall work out of the job. If the frame is bent, rusted at the base or loose in the wall, a new door will not hang right, and the spec will move that opening to frame replacement.
Codes and Standards
Replacements on rated openings use labelled leaves to keep the assembly valid, exits keep their egress hardware, and doors follow ANSI/SDI A250.8 steel door standards.