Hollow Metal & Steel Doors in St. Catharines
Supply, installation and 24/7 emergency repair across St. Catharines and the surrounding GTA — from our shop at 14-1645 Bonhill Road, Mississauga.
Hollow metal doors and frames we've installed and serviced in St. Catharines — for Nuance Winnery Supply, Star of the Sea Catholic Church, TRUGRP Inc — among many more businesses here. Dependable people, quality products, since 1979.
Hollow metal door projects across the Niagara and Hamilton region

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Hollow Metal & Steel Doors across St. Catharines
We work throughout St. Catharines — Port Weller Industrial Park, Commerce Place Industrial Park, Dunkirk Road Industrial Area, Glendale Employment Area and the blocks around them. The buildings here are mostly healthcare and social assistance, retail trade and manufacturing, and each puts different demands on a door: traffic volume, insurance and fire requirements, and how much downtime an opening can afford. St. Catharines’s 136,803 residents keep those buildings busy.
We have completed 6 hollow metal and steel door jobs in St. Catharines since 2021.
- Population
- 136,803
- Main industries
- healthcare and social assistance, retail trade, manufacturing and accommodation and food services
- Building stock
- legacy manufacturing plants, light industrial flex bays, enclosed shopping centres and big-box retail plazas
- Business parks
- Port Weller Industrial Park, Commerce Place Industrial Park, Dunkirk Road Industrial Area and Glendale Employment Area
- Serving since
- 1979
- Port Weller Industrial Park
- Commerce Place Industrial Park
- Dunkirk Road Industrial Area
- Glendale Employment Area
- St. Paul Street
Broken hollow metal & steel doors in St. Catharines: we dispatch 24/7.
St. Catharines is roughly a 80-minute run from our Mississauga shop — less if a technician is already in the area. Planned work, measures and maintenance travel there without difficulty; on a middle-of-the-night emergency we will tell you the drive time on the phone, and what to do to make the opening safe until we arrive.
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 St. Catharines from one replaced in five is what fills the cavity between the faces.
Finishes, and what winter in St. Catharines 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 St. Catharines — the price and the date
We install what we supply, and we supply on its own: contractors in St. Catharines who hang their own doors buy leaves, frames and hardware from us as one package, prepped to the schedule.
Related hollow metal work in St. Catharines
Hollow metal doors for the work St. Catharines buildings do
The sectors that dominate St. Catharines — healthcare and social assistance, retail trade, manufacturing — each wear a steel door out in a different place.
Healthcare and social assistance
Doors on a ward route are hit by beds and carts all day, so the leaf takes a heavier gauge, a full-height kick plate and a continuous hinge instead of three butts. Soiled utility and sterilising rooms are washed down, which puts stainless on the list for a handful of openings rather than for the whole floor.
Retail trade
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.
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.
Accommodation and food services
Paint does not survive a sanitation schedule, so these openings go stainless — leaf, frame and hardware, seams welded and ground rather than lapped. The frame is the part that gets forgotten and the part standing in the water: a stainless door in a painted frame rusts at the floor inside a year.
Educational services
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.
General contractors & new builds
Steel doors are a schedule rather than a purchase: every opening listed with its size, hand, frame profile and hardware prep, because nothing can be cut into a leaf after it is made. Welded frames go in with the block and knock-downs into finished drywall later, so the order the site runs in decides which you buy.
Get hollow metal doors quoted in St. Catharines
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 is the difference between a hollow metal door and a steel door?
In commercial work, nothing — hollow metal is what the trade calls a commercial steel door, and the two terms are used interchangeably on drawings and in quotes. A "commercial-grade" door means exactly this assembly: a steel leaf built to an ANSI/SDI level, hung in a steel frame, prepped at the factory for commercial hardware. The distinction worth making is against residential steel entry doors: those are an insulated slab in a wood or composite frame, sold as a finished unit, and they are not built for continuous traffic, commercial hardware or a fire label. They are a different product with a different price, and we supply those too — ask for the residential line rather than this one.
What is a hollow metal door?
Two formed steel face sheets welded or interlocked around a core, hung in a steel frame. The name describes how it is built rather than what is inside it — the cavity is filled with honeycomb, polystyrene, polyurethane, mineral board or steel stiffeners depending on what the opening has to do. It is the standard commercial door in Ontario because it is dimensionally stable, can carry a fire label, and every part of it can be repaired in place.
Do steel doors rust in a Canadian winter?
A primed steel door left unpainted at an exterior opening will, particularly along the bottom rail where salt and meltwater sit. The specification that prevents it is galvannealed steel — a zinc-iron coating bonded to the sheet before the door is made, which paint holds to and which keeps rusting from spreading under a scratch. We specify galvannealed on every exterior opening and stainless where washdown or chemicals are involved.
Hollow Metal & Steel Doors nearby
Full product details: Hollow Metal & Steel Doors
