A rear service door on a Bayfront Industrial unit has been kicked, pried, and weathered for years. The skin is dented, the bottom edge is rusting through, and the frame has racked just enough that the latch no longer lines up, so it gets propped with a brick. That door is the building’s security, its weather seal, and, if it sits in a fire separation, part of its fire protection. A residential door from a big-box store will not fix it.
Treco Locksmith & Security supplies, installs, and replaces commercial steel doors and pressed-steel frames across Burlington, Hamilton, and the Halton region. We have been fully mobile since 2018, so we field-measure, source, and install at your site, with hardware prep done on the spot, the difference between a door handled in one coordinated visit and a job that drags across three trades.
Hollow Metal Doors and Pressed-Steel Frames
Commercial steel doors are hollow metal: a pressed-steel skin formed over an internal core and reinforced channels, hung in a pressed-steel frame. “Hollow metal” describes the construction, not the strength. These assemblies are the default for commercial exterior, service, and separation openings because they outlast wood, shrug off impact and weather, and carry commercial hardware through hundreds of thousands of cycles.
We work in both halves of the assembly. The door is the leaf that takes the traffic. The frame (or jamb) anchors it to the wall and holds it square so the latch, closer, and weatherstrip all do their jobs. Replace a tired door but leave a racked frame in place and you have a new door that still will not latch. We assess both.
Supply, Install, and Replace
Most commercial buyers want one company responsible for the whole opening, so we typically handle supply and installation together:
- Supply and install a complete hollow metal door and frame package, machined for your hardware and ready to hang
- Install a door or frame you have already sourced, prepped and hung to spec
- Replace a failed door in an existing frame, a like-for-like swap that often finishes in a single visit
- Retrofit a new door and frame into an existing masonry or steel-stud opening when the old frame is beyond saving
Fire-Rated Assemblies for Fire-Separation Openings
Openings in a fire separation, stairwell doors, mechanical and electrical rooms, demising walls between tenancies, demand a labelled fire-rated assembly. That is not just a rated door. The door, frame, and hardware all have to carry compatible ratings and be installed so the CAN/ULC labelled assembly performs the way it was certified to.
Fire-rated openings also require self-closing and positive-latching hardware: the door has to close on its own and latch every time, so it cannot be wedged open and so it actually holds the separation. We supply and install the door, frame, closer, and exit device as a matched, labelled package, and coordinate the panic hardware where egress doors need it. Our panic and exit devices page covers that hardware in detail.
Exterior and Security Service Doors
Rear and side service doors are where buildings get tested, by weather, by forklifts, and by anyone looking for the path of least resistance. A properly specified hollow metal door and frame gives you:
- Weather resistance, with galvanized or galvannealed options and proper weatherstripping for exterior and wash-down exposure
- Impact durability, in a steel gauge matched to the traffic the opening actually sees
- Forced-entry resistance, from the rigid frame anchoring and the steel leaf, paired with commercial-grade locking hardware
- Hardware reinforcement, so closers and exit devices have solid steel to bite into rather than tearing out of a hollow-core door
Hardware Prep and Machining
A steel door is only as good as what is fitted to it. Doors and frames are machined, prepped, to standard hardware templates, and that prep is where door work and hardware work meet. We prep for:
- Door closers, surface or concealed, sized to the door and the traffic
- Exit devices and panic hardware, including fire-rated units on egress and separation doors
- Electric strikes and access-control hardware, with provisions for wiring through the frame
- Mortise and cylindrical locks, prepped to match your existing keying where needed
If your existing closers, locks, or exit devices are sound, we prep the new opening to accept them so you are not re-buying hardware. If they are failing, we replace them at the same time, so the door and the hardware get handled together rather than by separate trades on separate days. For ongoing hardware service, sticking closers, worn strikes, doors that no longer latch, see commercial door repair.
Gauges, Frame Types, and Finishes
No two openings are identical, so the specification is part of the job:
- Steel gauge scales with the demand on the opening, heavier gauges for higher-traffic and higher-security doors, lighter for interior partition openings
- Frame type depends on the wall: a knock-down frame for retrofits and steel-stud or drywall partitions; a welded frame for new construction, masonry, and maximum-security openings
- Frame depth is sized to your wall thickness so the unit fits the existing opening
- Finish runs from a primed coat ready for your finish paint to galvanized and galvannealed for exterior or corrosive environments
We recommend the gauge, frame type, and finish based on whether the opening is interior or exterior, how much traffic it takes, and whether it sits in a fire separation.
Who We Build For
Industrial and warehouse facilities along Hamilton’s Bayfront Industrial Area, the Barton Street corridor, and the units off Burlington’s North Service Road and Harvester Road live and die by their service and loading-area doors. Retail rear and service doors take constant traffic and turn over between tenancies. Institutional and multi-tenant buildings carry fire-separation openings that have to stay code-compliant. And property managers across Burlington, Hamilton, Oakville, Milton, and the Halton region call us to replace failing openings across a portfolio. This is the work the commercial locksmith hub is built around.
Get a Door and Frame That Actually Closes
If you have a service door that will not latch, a frame that has racked, a rusting exterior leaf, or a fire-separation opening that needs a properly labelled assembly, we will field-measure the opening, specify the right door, frame, and hardware, and install it as one coordinated job. We have held a 5.0 rating across 204 Google reviews since going fully mobile in 2018, because we measure right and hang doors that work.
Call (905) 977-8476 to discuss your steel door and frame project across Hamilton, Burlington, and the surrounding area, or contact us online and we will get back to you promptly.