Commercial Doors in Ajax
Supply, installation and 24/7 emergency repair across Ajax and the surrounding GTA — from our shop at 14-1645 Bonhill Road, Mississauga.
Commercial doors we've installed and serviced in Ajax — for SMiD Construction LTD, Millcom Construction Limited, Twinough Real Estate Ltd, Giant Tiger Stores Limited, Ajax food mart, Refuge City Pentecostal Church — among many more businesses here. Dependable people, quality products, since 1979.
Recent commercial door projects in Ajax and surrounding areas

Commercial Glass & Aluminum Doors
Avi Construction Inc

Hollow Metal & Steel Doors
Refuge City Pentecostal Church

Overhead Doors
Private client
Commercial Doors across Ajax
We work throughout Ajax — Central Employment Area, GTA East Industrial Park, Lakeridge Logistics Centre, Audley Road North Business Park and the blocks around them. The buildings here are mostly logistics, warehousing, and storage, advanced manufacturing and retail trade and commercial services, and each puts different demands on a door: traffic volume, insurance and fire requirements, and how much downtime an opening can afford. Ajax’s 126,666 residents keep those buildings busy.
We have completed 21 commercial door jobs in Ajax since 2020 — including work on Bayly Street West, Harwood Avenue South and Keensford Court.
- Population
- 126,666
- Main industries
- logistics, warehousing, and storage, advanced manufacturing, retail trade and commercial services and healthcare and institutional
- Building stock
- mega-warehouses and distribution facilities, food processing and cold storage facilities, light industrial and flex-space units and big-box retail and power centres
- Business parks
- Central Employment Area, GTA East Industrial Park, Lakeridge Logistics Centre and Audley Road North Business Park
- Serving since
- 1979
- Central Employment Area
- GTA East Industrial Park
- Lakeridge Logistics Centre
- Audley Road North Business Park
- Kingston Road Corridor
Broken commercial doors in Ajax: we dispatch 24/7.
Ajax is roughly a 55-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.
Commercial door systems we install and repair in Ajax
A commercial building runs on more kinds of door than most people ever count — a glass entrance out front, hollow metal on the exits, an overhead door on shipping, an operator on the accessible route. Canuck Door Systems supplies, installs and repairs all of them with one crew and one phone number, so "commercial doors" here means the whole building, not one product.
Hollow metal vs glass-aluminum doors
The two door systems a commercial building buys most, and they solve different problems. Hollow metal is strength: a steel slab in a welded steel frame, rated where it needs to be, indifferent to abuse. Glass and aluminum is presence: daylight, visibility and a storefront a customer walks up to. Most buildings need both — the question is which opening gets which.
Fire-rated doors in Ajax: the label is the system
A fire-rated door is not a heavier door — it is a listed assembly. Door, frame, hardware and any glazing are tested together, and the rating on the label only holds while all of them match it. That is why a rated opening is specified and installed as one thing, and why swapping a closer or cutting a lite into a rated door in the field is not a small change.
Planned maintenance instead of emergency calls
Most of the door failures we attend didn't start that week — a dragging closer, a fraying overhead-door cable, a slower operator. A preventative-maintenance plan puts a technician in front of every door on a schedule: hardware adjusted, springs and cables inspected, operators tested, rated doors checked to close and latch on their own. Facility managers use it to turn door repair from a dispatch problem into a line item — and the 24/7 line is still there for the failures that don't wait.
Doors for the work Ajax buildings do
The sectors that dominate Ajax — logistics, warehousing, and storage, advanced manufacturing, retail trade and commercial services — each ask something different of their doors.
Logistics, warehousing, and storage
Shipping runs on dock levelers, dock seals and sectional or rolling steel overhead doors — and a bay door that won’t lift is a stopped truck, which is why these calls get 24/7 dispatch.
Advanced manufacturing
Plants take doors hard: hollow metal doors and frames for forklift and cart traffic, heavy-cycle overhead doors on shipping, and fire-rated doors on the separations between plant and office.
Retail trade and commercial services
Storefront glass-aluminum entrances, same-day glass replacement and board-up after a break-in, and rolling security shutters or grilles for the hours the lights are off.
Healthcare and institutional
Low-energy swing operators and universal washroom packages for barrier-free routes, plus fire-rated corridor doors — openings where accessibility and code both have a say.
Food & pharma processing
Processing and clean environments call for double-acting traffic doors on busy corridors and sealed hollow metal doors that stand up to washdown and sanitation cycles.
Offices & business parks
Glass-aluminum entrance systems, automatic operators for barrier-free access, and repairs scheduled around tenants — an entrance off its hinges is every visitor’s first impression.
Get a commercial door quoted in Ajax
Tell us the opening and what it is doing. If it is an emergency, call 800-522-6825 — the line is answered 24 hours.
Common questions about commercial doors
Do you repair doors you did not install?
Yes, and it is a large part of what we do. We service commercial doors, operators and dock equipment regardless of who supplied them, including brands we do not sell. If the door is beyond economical repair we will say so and quote the replacement, but the first visit is about getting the opening working again.
Can a hollow metal door be fire-rated?
Yes, and it is the usual way an opening gets its rating. A labelled hollow metal door and frame carries a rating of 20, 45, 60, 90 or 180 minutes, certified by ULC or UL, with a mineral core where the rating requires one. Every part of the assembly has to be labelled and compatible — door, frame, hinges, closer, latch and any glazing — which is why a rated opening is specified as one assembly rather than assembled from parts. The rated line is covered on our fire-rated doors pages.
What is a standard exterior commercial door size?
A 3'0" by 7'0" single leaf is the commercial standard, and most rear, service and stairwell doors in Ontario are that size. Widths run from 2'0" to 4'0" in two-inch increments and heights are usually 6'8", 7'0" or 8'0", with 4'0" by 8'0" the largest standard single leaf before the door, its hinges and its frame all become custom. Standard pairs are built from two standard leaves — 6'0" by 7'0", from a pair of 3'0" doors, is the common double door. Staying on that grid is the difference between a door that ships in days and one that joins the four-to-six-week production queue.
Commercial Doors nearby
Full product details: Commercial Doors
