Sized to the door, the traffic and the power at that wall
Commercial garage door operators in Ottawa
A commercial operator is specified, not picked off a shelf. Four things decide it: how the door mounts, how many cycles a day it runs, what power reaches that wall, and which UL325 control type the building needs. Get those four right and the operator outlives the door. Get one wrong and it becomes the part you replace every second winter.
Which operator suits your door: trolley, hoist, jackshaft or gear head?
Trolley for a light sectional door on a straight ceiling run. Hoist for a rolling steel door on a wall mounted shaft. Jackshaft where the ceiling is full. Gear head where the door is heavy and the cycles are constant.
Those four names describe how the motor reaches the door, and the building usually decides for you. A trolley unit hangs on the ceiling and pushes the top section along a rail, which is the arrangement most people picture, and it needs a clear run back from the opening roughly equal to the door height. A hoist operator bolts to the wall beside the opening and turns the shaft through a chain and sprocket, which is why it is the normal answer on rolling steel: there is no top section to push. A jackshaft mounts on the torsion shaft itself and takes nothing from the ceiling, so it is what goes in when a crane rail, a mezzanine, a sprinkler main or a light rack has already taken the space a trolley rail would need. A gear head operator is the industrial version of the same idea, with a cast gear reduction and a motor built to run all shift.
Two measurements settle the shortlist before anything else. Headroom above the opening decides whether a trolley rail can sit level and whether a jackshaft bracket clears the drum. Side room, the wall beside the opening, decides whether a hoist or jackshaft unit physically fits, and a typical wall mount wants somewhere around 8 to 10 inches of clear wall on the drive side plus room to swing the emergency chain. A high lift or vertical lift door has already ruled out the trolley on its own, because the door no longer travels back along the ceiling. Omar measures headroom, backroom and side room on the site visit, and that measurement is what the operator is ordered against.
Every one of them needs a way to move the door when the power is out. A trolley has a disconnect and you push the door by hand. Hoist and jackshaft units carry a chain hoist or a floor level release, and on a heavy rolling door that chain is not a formality, it is the only way the bay opens during an outage. Ask where the release hangs before the unit goes up, because a release chain behind a rack is a release nobody can reach.
What does duty cycle mean, and how many cycles can each operator take?
Duty cycle is how many open and close cycles an operator can run per hour and per day without overheating. A light trolley unit suits a handful an hour. A gear head operator is built for continuous traffic.
Manufacturers publish this as a duty class rather than a single number, and the classes stack roughly like this. Light duty is written for a few cycles an hour and something like twenty a day. Standard duty carries around ten an hour and a few dozen a day. Medium duty steps up again. Industrial or continuous duty units are rated to run all shift without a rest window, and they are built differently to do it: a bigger frame, a heavier gear set, a thermally protected motor and a reversing contactor rated for the switching rather than a light relay. Count a real week of openings before anyone quotes, because the count is the specification. A shipping bay that opens 80 times a day is not the same building as a storage bay that opens four times.
Undersizing shows up as heat. The motor's thermal overload trips near the end of a busy afternoon, the door sits until it cools, and someone logs it as an intermittent fault rather than as the operator being one class too small. Then the contactor points burn, because they are switching more starts than they were rated for, and the unit dies in a year that the specification predicted. Buying one class higher at the start is almost always cheaper than the second operator plus the downtime that bought it.
The door has a cycle count too, and the two numbers have to be read together. A standard torsion spring is rated near 10,000 cycles. Put a continuous duty operator on a door sprung for light traffic and the operator will simply keep working while the spring, the rollers and the hinges wear out underneath it. When we quote an operator for a busy bay, the spring rating and the roller type get quoted with it, because the operator is not the only part the new traffic is aimed at.
Does your building have the three phase power the operator needs?
Often not at that wall. Many Ottawa shops have three phase service at the panel and only single phase run to the bay. The operator is sized to the power you actually have, so an electrician confirms it before we order.
Commercial operators are ordered by voltage and phase, and the two are not interchangeable once the unit is on the wall. Single phase units are common at 115 volts for the smallest motors and 230 volts as you go up. Three phase units in Canadian buildings usually land on 208 volts or 600 volts, and 600 volt three phase is worth flagging because it is the Canadian industrial standard where American literature and American spec sheets will show 480. A unit ordered against a 480 volt line in a catalogue is the wrong unit for a 600 volt Ottawa plant, and it is a return, not an adjustment.
Three phase is worth having where it exists. The motor starts under load more smoothly, runs cooler, draws less current for the same horsepower, and lasts longer in a bay that cycles all day. But the practical question is never what the building has, it is what reaches that wall. We check the nameplate on the existing operator, the breaker feeding it and the conductors in the conduit, and your electrician confirms the circuit and any disconnect the work needs. If the answer is that only single phase is there, that is not a dead end: a single phase unit of the right duty class is a real answer, and it is usually cheaper than pulling a new feeder across a building.
Electrical work at the panel is an electrician's trade and we say so plainly. HUSH installs and services the door and the operator, ties the controls into the operator's terminal strip, and works to the supply your electrician provides. Anything upstream of the disconnect belongs to them. HUSH carries commercial general liability insurance and WSIB coverage, and we work alongside your own trades on site rather than around them.
What is UL325 entrapment protection, and what does your door need?
UL325 is the safety standard that governs entrapment protection on powered doors. It sorts commercial operators into four control types, and the type you install decides whether the door may close on a held button or on a photo eye.
The four types are easier to hold in your head as a question about what a person has to do to close the door. In the first type, a momentary press closes it, and a monitored external device, a photo eye or a reversing edge, is doing the watching. In the second, a momentary press opens it but the button must be held down the whole way to close. In the third, the button is held for both directions. In the fourth, the door may close on its own from a timer, a floor loop or a radio, and that freedom is paid for with a monitored sensing device plus an audible and visible warning before it moves.
The word that matters in all of that is monitored. A current commercial operator does not simply accept a photo eye, it watches it. Unplug the eye, knock it out of alignment with a pallet, let the lens fog over in a wash bay, and the operator will not close on a momentary button any more. It drops back to hold to close, which reads on the floor as the door being broken when the door is fine and the sensor is not. That single behaviour is behind a large share of the commercial operator calls we take, and it is worth reading what a blocked or misaligned photo eye does to a door before you assume the motor is at fault.
Two practical notes for a property manager. Changing the control type is not a wiring preference, it changes what the operator is allowed to do, so if you want a loop or a timer closing a door onto a driveway you are buying the fourth type and its alarm, not adding a switch to the third. And a photo eye at ankle height protects the beam line, not the whole opening, which is why a reversing edge on the bottom bar earns its place on a wide door where a pedestrian can walk past the beam.
Why does a commercial operator fail before the door it moves?
Because the operator absorbs everything the door stopped doing. A spring that has lost tension, a binding track or a dragging roller all become load on the motor, and the motor is the part that reports the problem by dying.
A counterbalanced door is supposed to weigh almost nothing at the operator. The springs carry the door and the motor only overcomes friction and starts the movement. Let the spring lose a few turns, let a roller seize so it skids in the track instead of rolling, let a track bolt work loose so the door binds at one corner, and the motor is now lifting a share of a door that may weigh several hundred pounds. Nothing announces this. The door still opens. It just opens with the motor doing work it was never sized for, and the bill arrives as a burnt motor, a stripped gear or a chain that has stretched past adjustment.
There is a test you can run in a minute and it settles the argument. Pull the release, take the operator out of the picture, and move the door by hand. A properly balanced door lifts with light steady effort and stays roughly where you leave it at waist height. If it slams down, if it climbs on its own, or if you feel a catch at one point in the travel, the door is the fault and a new operator will only buy you time. Do not pull the release on a door you cannot control by hand, and never put a wrench on a torsion spring or a bottom bracket: both are under load even when the door is open.
The rest of the failures are the operator's own wear parts, and they are the ones a maintenance visit catches early. Limit switches drift, so the door stops short or runs into the floor. Contactor points pit and the unit starts humming instead of starting. Drive chains and sprockets stretch and wear. A trolley clutch slips. When we look at an operator, the door gets tested first and the operator second, because replacing a motor on a door that is out of balance just resets the clock on the same failure.
Can an operator be added to a door that is hand operated today?
Usually yes, but the door is what decides. It has to be balanced, in true track, and fitted with the brackets the operator mounts to. On a rolling steel door the barrel also needs the right shaft and tension.
On a sectional door the checklist is short. The top section needs to be strong enough to take a trolley arm without bowing, which on a wide commercial door often means a strut across it. The track has to be plumb and true, because a motor will push a door through a bind that a person would have stopped at. The spring has to be sized for the door as it stands today, not as it was twenty years ago. And there has to be a mounting point that carries the load: a ceiling angle back to structure for a trolley, or a solid shaft and proper side room for a jackshaft.
On a rolling steel door the questions move to the barrel. A hand chain door has spring tension set for a person pulling a chain, and power operation usually wants that tension reset. The shaft needs the right diameter and a keyway for the drive sprocket, the brackets need to accept the operator, and on some older doors the honest answer is that the curtain, barrel and guides are worn enough that the money belongs in the door rather than in a motor bolted to it.
One rule has no exceptions. A door that becomes power operated becomes a door that needs entrapment protection, so the photo eye or reversing edge, the correct control station and the correct control type are part of the conversion, not an upgrade to consider later. A fire rated door is a separate conversation again, because its operator has to let the curtain drop when the release calls for it, and the drop test still has to pass afterwards.
How should a commercial door be controlled: push button, pull cord, loop or remote?
Start with the three button station on the wall, because it is the control UL325 assumes. Add a pull cord, a floor loop or a remote where a driver cannot reach the wall, and wire each to the right control type.
The three button station, open, close and stop, is the baseline for a reason: it sits in sight of the door, it makes a person present for the movement, and every other control is measured against it. Mount it where the operator can see the full opening, not around a corner, and pick the enclosure for the room. An indoor rated box is fine in a dry warehouse. A wash bay, a cold storage room or an exterior wall wants a gasketed enclosure that survives water, and a bay that gets hosed down will destroy the cheap box within a year.
The add ons each solve a specific problem. A pull cord or chain switch suits a driver who stays in the cab. A key switch restricts who can move the door, which is the point in a shared loading area or a condo garage. A radio remote suits a yard where the vehicle arrives from different angles. A vehicle loop cut into the slab opens for a truck automatically, and here is the distinction people miss: an opening loop and a safety loop are two different devices doing two different jobs, and the safety loop is the one that stops a door closing on a vehicle sitting in the opening. Any control that closes the door without a person watching it, timer, loop or radio, puts you in the fourth UL325 control type with its monitored sensor and its warning alarm.
For a condo or a multi tenant building, decide the access question first and the hardware second. Who is allowed to open this door, at what hours, and do you need a record of it? That answer chooses between a key switch, a fob receiver, a card reader tied into the operator's dry contacts, or an intercom release. Every one of them lands on the same terminal strip. The wrong order is buying the reader first and discovering the operator's control type will not do what the access plan assumed. Our labour on operator work carries the 90 day guarantee that sits behind operator labour.
An operator is quoted after we see the door and the power
Mounting type, duty class, voltage and phase, control type and the condition of the door itself all move the number, so we look at the bay before we price it. Repairs work the ordinary way: a service call is $35 to $85, free on any repair over $250, and you get a written price you approve first. HUSH carries commercial general liability insurance and WSIB coverage.
- Every major brand serviced
- Factory-trained
- Insured and WSIB-covered
Same-day service
We carry the common springs, cables, rollers and opener parts on every truck, so most repairs are one visit.
A written price before we start
You get a firm price, quoted before we start and never after, and there is no overtime fee at night or on a weekend.
Guaranteed work
Every repair is backed by our written 90-day Done-Right Promise, parts and labour included.
Factory-trained and owner-operated
factory-trained, owner-operated, and servicing every major garage door and opener brand.
Free estimate, and the service call is free with any repair over $250. Ask about financing on approved credit.
From call to fixed, in 4 steps
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Call or book
Tell us what is happening. We give you a real arrival window.
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We diagnose on-site
A technician inspects and shows you exactly what is wrong.
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You get a firm quote
We price the fix and walk you through your options, before any work.
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We fix it, you test it
Most repairs done the same visit, backed by our 90-day promise.
HUSH guarantees its labour for 90 days
The Done-Right Promise covers our labour for 90 days on every repair. If the work is not right, we come back and fix it free. Premium parts carry their own manufacturer warranty.
We can promise this because most of our repairs are done right on the first visit, so callbacks are rare. On the rare one, fixing it is on us, never you.
Operator tripping out, or a bay that needs one fitted?
Omar tests the door balance first, checks the power at the wall, and quotes the operator in writing.
Same-day, 7 days a week. Open daily, 7am to 9pm.