Hollow Metal & Steel Doors in Markham
Supply, installation and 24/7 emergency repair across Markham and the surrounding GTA — from our shop at 14-1645 Bonhill Road, Mississauga.
Hollow metal doors and frames we've installed and serviced in Markham — for Nuday Networks Inc, Pro-tek Services, Orion Management, St. Philips on the Hill Anglican Church, MBV Construction Inc, Brafasco — among many more businesses here. Dependable people, quality products, since 1979.
Recent hollow metal & steel doors projects in Markham and surrounding areas
Meadowbrook Construction Inc
Lindale Construction Ltd
Canada's Wonderland
Hollow Metal & Steel Doors across Markham
We work throughout Markham — Milliken Mills, Markham Centre, Buttonville and Highway 404 corridor. The buildings here are mostly technology campuses, corporate offices and light manufacturing, and each puts different demands on a door: traffic volume, insurance and fire requirements, and how much downtime an opening can afford. Markham’s 338,503 residents keep those buildings busy.
We have completed 23 hollow metal and steel door jobs in Markham since 2020 — including work on Amber Street and Denison Street.
- Population
- 338,503
- Main industries
- technology campuses, corporate offices, light manufacturing and retail plazas
- Building stock
- warehouses and distribution facilities, industrial flex spaces, advanced manufacturing plants and commercial plazas
- Business parks
- Milliken Mills, Markham Centre, Buttonville and Highway 404 corridor
- Serving since
- 1979
- Milliken Mills
- Markham Centre
- Buttonville
- Highway 404 corridor
Broken hollow metal & steel doors in Markham: we dispatch 24/7.
Markham is roughly a 40-minute run from our Mississauga shop — less if a technician is already in the area — so a truck is usually on site the same day.
Emergency board-up, security and make-safe first — permanent repair scheduled after.
What hollow metal doors are, and when to specify one
A hollow metal door is a steel skin over a core in a welded or knock-down steel frame. It is the default choice wherever an opening has to survive traffic, weather, forced entry or a fire code requirement — back-of-house, mechanical rooms, stairwells, loading areas and exterior service doors.
The core is chosen by the opening, not by the door
Every hollow metal door looks alike from six feet away. What separates a leaf that lasts twenty years in a plant in Markham from one replaced in five is what fills the cavity between the faces.
Finishes, and what winter in Markham does to the wrong one
Finish is the specification most often left to whoever places the order, and it decides how long the door lasts. Four answers, not interchangeable.
Frames — welded or knock-down, and the wall decides
The frame is half the assembly and most of the failures, and which one you buy is usually settled by when the wall gets built.
Supplying hollow metal doors in Markham — the price and the date
We install what we supply, and we supply on its own: contractors in Markham who hang their own doors buy leaves, frames and hardware from us as one package, prepped to the schedule.
Related hollow metal work in Markham
Hollow metal doors for the work Markham buildings do
The sectors that dominate Markham — technology campuses, corporate offices, light manufacturing — each wear a steel door out in a different place.
Technology campuses
Every floor holds more steel than anyone counts: mechanical and electrical rooms, janitor closets, the service corridor behind the elevator lobby. After a fit-out the work is matching them — one paint colour and one frame profile across a floor that has been renovated three times in twenty years.
Light manufacturing
A plant is where a steel door earns its gauge: 16-gauge or steel-stiffened leaves on the routes carts and forklifts take, and frames grouted solid into block so a knock moves the wall instead of the jamb. Dents in steel stay, so the specification is written to make them rarer, not to hide them.
Retail plazas
The glass is at the front and the steel is at the back — the stock-room door, the door onto the service corridor, the rear exit to the lane. The rear one is the one that gets pried, so it wants a welded frame with no gap to lever against and a leaf that does not flex when someone leans on it.
Schools & institutions
A school corridor is the hardest wear a steel door gets — leaned on, kicked, wedged open — and the answer is gauge and a properly anchored frame rather than a better closer. The other half of the job is the odd sizes an older wing was built to, which is why none of it is quoted from a catalogue.
Condos & property management
These are the doors a manager replaces one at a time: garbage and locker rooms, roof access, and the door off the parking ramp that takes every winter’s salt off the cars. That one goes first and always at the bottom rail — worth galvannealed, and worth a frame that can be cut out and rewelded at grade.
Hotels & hospitality
Guests never see this half of the building: kitchen and servery doors, the service corridor, receiving, and the stair down to the loading area. They run all night and they take carts, and they are usually changed during a refurbishment while a floor is closed anyway — which is the least expensive time to do it.
Get hollow metal doors quoted in Markham
Give us the sizes, whether the frame is staying, and what the opening has to put up with — weather, washdown, forklifts. A door schedule or a photo of the existing frame is enough to quote from. If a door is off its hinges or will not lock, call 800-522-6825 — the line is answered 24 hours.
Common questions about hollow metal & steel doors
What type of doors are best suited for exterior commercial use?
A galvannealed hollow metal door in a galvannealed welded frame, in 16 gauge or heavier where the traffic warrants it. The zinc-iron coating is what survives a salted Ontario winter; a factory-primed door left at an exterior opening will rust along the bottom rail within a season or two. Add a sweep and threshold so water leaves the opening, a thermal break where the space behind the door is heated, and stainless rather than paint where washdown or chemicals are involved. Aluminum and glass belong at the front of the building where appearance matters; steel belongs everywhere the door has a job other than being looked at.
What gauge are commercial steel doors?
18-gauge face sheets are the commercial standard, with 16-gauge used where traffic or abuse is heavy and 20-gauge limited to light interior duty. Frames run the other way: 16-gauge is the usual interior frame and 14-gauge the exterior and heavy-duty one. Lower number, thicker steel. The ANSI/SDI A250.8 levels are the shorthand the trade uses — Level 1 through Level 4, standard duty to maximum duty.
Can you replace just the door and keep the existing frame?
Often, and it is the smaller job. If the frame is square, solidly anchored and not rusted through, a new leaf can be made to the existing frame's dimensions and hardware locations. What rules it out is a frame that has been pushed out of square, one whose anchors have let go in the masonry, or rust at the floor line that leaves nothing to fix a hinge to. We check the frame on the measure and tell you which of the two jobs it is.
Hollow Metal & Steel Doors nearby
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