Walk up to almost any modern retail entrance, hospital lobby, or office tower in the Greater Toronto Area and the door opens before you touch it. That convenience hides a fair amount of engineering: an operator, a set of sensors, a control board, safety logic, and an accessibility standard the building has to meet. When one of those parts drifts out of adjustment, the door either stops working or, worse, becomes a hazard for the people walking through it.
This guide explains commercial automatic doors the way an installer would explain them to a business owner standing in the entrance: what the types are, how the operators and sensors actually work, which safety standards apply, what Ontario’s accessibility rules require, and how to tell whether a balky door needs a repair or a full replacement. If you run a storefront, manage a facility, or spec entrances for a new build, this is the background that helps you ask better questions and avoid paying for the wrong fix.
Quick answer: A commercial automatic door is a pedestrian entrance that opens and closes under powered control instead of by hand. An operator (the motor and gearbox) drives the door, an activation device (a motion sensor, a push plate, or an access reader) tells it when to open, and safety sensors keep it from striking or trapping anyone. The three common formats are sliding, swinging, and folding, each governed by its own ANSI/BHMA safety standard.
What counts as a commercial automatic door
The phrase covers any powered pedestrian door built for a commercial or institutional setting rather than a house. That scope matters, because the duty cycle is completely different. A residential garage opener runs a few dozen times a day. A grocery store entrance in Mississauga can cycle several thousand times a day, every day, through road salt, wind-driven rain, and forty-degree temperature swings across the year. The hardware is heavier, the operators are rated for far more cycles, and the safety requirements are stricter because the public uses them.
It helps to separate two ideas that get blurred together. A fully automatic door opens on its own when it senses someone approaching. A power-assist or low-energy door only opens when a person does something deliberate, like pressing a wall plate or waving at a touchless switch. Both are “automatic” in casual speech, but they follow different rules and cost very different amounts to install. If you are weighing powered against manual entrances in the first place, our breakdown of automatic versus manual doors for a business walks through that decision in detail.
Types of commercial automatic doors
Most GTA entrances fall into four families. The right one depends on traffic volume, available wall space, security needs, and how the entrance looks from the street.
Automatic sliding doors
Sliding doors are the workhorse of high-traffic retail, grocery, healthcare, and airport entrances. Panels ride on an overhead track and part in the middle (bi-parting) or slide to one side. They handle two-way traffic well, they do not swing into the path of anyone standing near the door, and many models break out to a full 90 degrees so the whole opening becomes an emergency exit. Because they carry so much traffic, the glass is usually tempered safety glass set in aluminum stiles, and the header hides the operator and sensors.
Automatic swing doors
Swing operators are the most common choice when an existing manual door needs to become accessible. The operator mounts on the header above an existing frame and pushes or pulls the leaf open on its normal hinges. That makes swing operators the usual answer for barrier-free upgrades at offices, clinics, schools, and municipal buildings, because you can often keep the existing door frame and leaf and add power to it. The trade-off is that a swinging leaf needs clear floor space to travel, and guide rails are often required to keep people out of the swing path.
Automatic folding doors
Folding doors are a space-saving cousin of sliding doors. Each side folds in two as it opens, so they need less pocket width than a full slide. You see them where the wall beside the opening is short, or where a wider clear opening is wanted from a narrow entrance. They are less common than sliders and swings but useful in tight vestibules.
Revolving and specialty doors
Automatic revolving doors show up at large office towers and hotels where energy loss through the entrance is a real cost. They keep conditioned air inside because there is never a straight opening to the outside. Codes require an adjacent swing or sliding door beside a revolving door for accessibility and egress, so a revolving entrance is rarely the only door in a bank of entrances.
| Door type | Best for | Space needed | Typical activation | Notes |
|---|---|---|---|---|
| Sliding | High-traffic retail, grocery, healthcare | Wall pocket beside opening | Motion sensor | Break-out panels double as exit |
| Swing | Accessibility retrofits, offices, clinics | Clear floor for the swing arc | Push plate or sensor | Often keeps the existing door and frame |
| Folding | Narrow vestibules, tight walls | Less pocket than sliding | Motion sensor | Wide clear opening from a small frame |
| Revolving | Towers, hotels, energy control | Large circular footprint | Continuous or on-demand | Needs an accessible door alongside |
How automatic door operators and activation work
Every automatic door is really three systems working together: something that moves the door, something that tells it when to move, and something that keeps it from hurting anyone. Understanding those three parts is what lets you describe a fault clearly when you call for service.
The operator
The operator is the powered heart of the door. It houses a motor, a gearbox or belt drive, and a control board that manages speed, force, and timing. On a sliding door the operator sits in the header and drives a belt that carries the panels. On a swing door the operator turns an arm that pushes or pulls the leaf. Full-energy operators move the door quickly and rely on sensors to clear the path first. Low-energy operators move it slowly and gently enough that the reduced speed and force are the safety measure. When people say a door needs a new automatic door operator repaired or replaced, this is the part they mean.
Activation: how the door knows to open
Activation devices split into two camps. Motion sensors mounted in the header detect someone approaching and trigger a full-energy door automatically. Knowing-act devices require a deliberate action: a large round push plate, a touchless wave switch, a key fob, or an access-control reader. Barrier-free push plates are the familiar blue actuators with the wheelchair symbol. Touchless switches became far more common after 2020 because they let people open a door without touching a shared surface. If your entrance ties into a card reader or fob system, it usually shares wiring and logic with the same access hardware described in our guide to electric strikes and access control, and it belongs in the same conversation as your broader door security setup.
Safety sensors and guide rails
Safety is where cheap and proper installations part ways. A full-energy door uses presence sensors that hold the door open while someone is still in the opening, plus threshold and approach sensors that stop it from closing on a person. Since the 2017 edition of the governing standard, a full-energy pedestrian door has to verify that its presence sensors are actually working before each closing cycle, and it must stop operating if it detects a sensor fault. Swing doors add guide rails, the short railings that steer pedestrians out of the arc of the moving leaf. Skipping guide rails or defeating a sensor to stop nuisance faults is the most common way a door becomes unsafe.
| Activation method | How it triggers | Common on | Good for |
|---|---|---|---|
| Motion sensor | Detects approach automatically | Sliding, folding | Hands-full, high traffic |
| Push plate | Deliberate press | Low-energy swing | Barrier-free access |
| Touchless wave | Hand near the switch | Low-energy swing | Hygiene-sensitive sites |
| Access reader | Card, fob, or credential | Secured entrances | Controlled access |
The safety standards that govern automatic doors
Three ANSI/BHMA standards divide up the automatic-door world by door type and energy level. Knowing which one applies to your entrance tells you what the door is supposed to do and what an inspector will check.
ANSI/BHMA A156.10 covers full-energy power-operated pedestrian doors, the fast sliding, swinging, and folding doors that open on their own when sensors detect someone. It requires presence and motion sensors, guide rails in most cases, sensor self-monitoring, and a minimum hold-open time of five seconds. This standard is written for doors that move at full speed, so the whole safety scheme relies on the sensors clearing the path.
ANSI/BHMA A156.19 covers low-energy and power-assist swinging doors, the kind triggered by a knowing act such as a push plate. These open slowly, take at least three seconds to reach the fully open position, and hold open for a minimum of five seconds. Because the reduced speed and force are the safety measure, a knowing-act low-energy door does not need presence sensors or guide rails. This is the standard most barrier-free push-plate doors follow.
ANSI/BHMA A156.38 is the newer standard for low-energy sliding and folding doors, filling the gap A156.19 left for non-swinging low-energy operators. It lets a sliding or folding door run in a slow, low-energy mode that can be activated by a sensor while still keeping the gentle speed and force limits that make presence sensing less critical.
One point trips people up: A156.10 explicitly does not cover low-energy doors, and it does not govern fire exits and emergency doors, which follow the fire and life-safety side of the code instead. If your automatic door sits in a rated wall or a required exit, its behaviour during an alarm matters, and that ties into the same rules covered in our guide to Ontario Building Code fire door requirements and the way panic hardware and exit devices have to keep working when the power drops.
| Standard | Door types | Energy level | Activation | Sensors and guide rails |
|---|---|---|---|---|
| A156.10 | Sliding, swing, folding | Full energy | Motion sensor (automatic) | Presence sensors and rails required |
| A156.19 | Swinging only | Low energy / power assist | Knowing act (plate, switch) | Not required at knowing-act activation |
| A156.38 | Sliding, folding | Low energy | Sensor or knowing act | Slow speed is the primary safeguard |
These are the current recognized North American standards for the equipment. The published editions and scope are documented by the Builders Hardware Manufacturers Association (BHMA), which develops and maintains the A156 series.
Accessibility and the Ontario Building Code
For most GTA businesses, accessibility is the reason an automatic door goes in at all. The current Ontario Building Code treats power door operators as a barrier-free requirement, not an optional upgrade. Under Article 3.8.3.3, every door that provides a barrier-free path of travel through a barrier-free entrance must have a power door operator, and the requirement extends to self-closing doors in the barrier-free path between entrances and the suites or rooms reached from public corridors.
The code also sets the numbers that matter when you spec a door. A doorway in a barrier-free path needs a clear width of at least 850 mm with the door open. Where a door does not have a power operator, the opening force is capped at 38 N for an exterior door and 22 N for an interior door, which is one of the main reasons heavier doors get powered in the first place. The operator control itself has to be usable with a closed fist, at least 150 mm across if round, mounted between 900 and 1,100 mm above the floor. If you are checking whether an existing entrance measures up, our guides to barrier-free door width compliance and accessibility requirements for storefront doors cover the clearances in more depth, and the general commercial door sizing guide puts those widths in context.
The accessible path does not stop at the leaf. The floor at the opening has to stay close to level, which is why the threshold height and bevel at an automatic entrance are part of the same compliance question. You can read the barrier-free design provisions in the Ontario Building Code regulation itself, and the accessibility side of the picture sits under the Accessibility for Ontarians with Disabilities Act, which the built-environment requirements in the Building Code help deliver.
| Requirement | Current OBC provision |
|---|---|
| Power operator at barrier-free entrance | Required on every door in the barrier-free path (Art. 3.8.3.3) |
| Clear door width | At least 850 mm with the door open |
| Opening force without a power operator | 38 N maximum exterior, 22 N maximum interior |
| Operator control | Closed-fist operable, 900 to 1,100 mm above floor |
Common problems with commercial automatic doors
Automatic doors fail in fairly predictable ways, and the symptom usually points at the part. A door that opens but will not close often has a dirty or misaligned safety sensor holding it open. A door that opens too slowly or stalls partway is usually a worn belt, a tired motor, or a control board losing its settings. A door that grinds or drags is frequently a roller, track, or bottom-guide problem, the same family of noises we cover in the piece on why a commercial door grinds. Sensor faults spike in winter when blowing snow and low sun confuse motion detectors, and in summer when heat and glare do the same, a seasonal pattern we see across commercial doors in warm weather.
| Symptom | Likely cause | Typical fix |
|---|---|---|
| Door will not close | Dirty or misaligned safety sensor | Clean, realign, or replace sensor |
| Opens slowly or stalls | Worn belt, motor, or lost settings | Service operator, reset control board |
| Grinding or dragging | Worn rollers, track, or bottom guide | Replace rollers, clean and align track |
| Opens for no one (ghosting) | Oversensitive or aimed-wrong sensor | Re-aim and retune detection field |
| Slams or closes too hard | Backcheck or closing-speed setting off | Readjust speed and force to spec |
| Dead after a storm | Power surge or tripped operator | Inspect board, reset or replace |
A door that jams shut or springs open at the wrong time is not only an annoyance, it can be a security gap and a safety problem at once. When a public entrance fails outside business hours, it usually cannot wait until morning, which is where emergency commercial door repair comes in.
Repair or replace: how to decide
The honest answer is that it depends on the age of the operator and what has failed. A control board, a set of sensors, a belt, or a worn roller are all normal wear items on a door that is otherwise sound, and replacing them is far cheaper than a new entrance. Once an operator is past its rated cycle life, keeps failing in different ways, or no longer meets the current accessibility numbers, repeated repairs stop making financial sense. Corrosion in the frame, cracked glass, or a frame that no longer holds alignment usually pushes the decision toward replacement, at which point the automatic door becomes part of a larger commercial door installation rather than a service call. The same logic we lay out for repair versus replacement across doors and windows applies here.
| Lean toward repair when | Lean toward replacement when |
|---|---|
| Operator is within its rated cycle life | Operator is old and failing repeatedly |
| One wear part has failed (belt, sensor, roller) | Frame is corroded or out of alignment |
| Glass and frame are sound | Glass is cracked or the profile is obsolete |
| Door still meets current accessibility rules | Door no longer meets barrier-free width or force |
Preventative maintenance keeps them safe and legal
An automatic door is a piece of powered safety equipment that the public walks through thousands of times, so it earns a maintenance schedule the way an elevator does. Industry practice, promoted by the American Association of Automatic Door Manufacturers (AAADM), is a quick daily safety check by the building’s own staff and a full inspection at least once a year by a trained technician. The daily check is simple: watch the door cycle, confirm it opens and closes at a safe speed, and confirm the safety sensors hold it open when someone is in the opening. The annual inspection covers sensor performance, operator force and speed, hold-open time, guide rails, and the condition of rollers, belts, and hinges.
Sensor cleaning matters more than most owners expect. A film of road salt, dust, or fingerprints on a sensor lens is enough to make a door ghost open or fail to detect a person, and both are safety issues. Weather seals matter too, since a drafty automatic entrance wastes conditioned air all year; the same weather stripping and door seals that quiet a manual door keep an automatic one efficient.
| Interval | Task | Who |
|---|---|---|
| Daily | Safety check: speed, hold-open, sensors | Building staff |
| Monthly | Clean sensor lenses and tracks | Building staff |
| Quarterly | Check rollers, belts, weather seals | Technician or trained staff |
| Annually | Full inspection to the applicable standard | Qualified technician |
What drives the cost of a commercial automatic door
There is no honest flat price for an automatic entrance, because the range is wide and site conditions swing it hard. The main cost drivers are the operator type, whether the door is low-energy or full-energy, the door configuration, the glass and framing, the sensors and activation devices, and the electrical work needed to bring power to the header. Adding a single low-energy swing operator to an existing accessible door sits at the low end. A new pair of full-energy sliding doors with fresh aluminum storefront framing and tempered glass sits far higher. Electrical runs, structural changes to the header, and any glass work add to both ends.
| Cost driver | Pushes cost up when |
|---|---|
| Operator and energy level | Full-energy sliding rather than low-energy swing |
| Door configuration | Bi-parting or paired doors rather than a single leaf |
| Glass and framing | New storefront framing and tempered glass |
| Sensors and activation | Touchless, access control, redundant safety sensors |
| Electrical and structural | New power runs or header reinforcement |
For a realistic figure, an on-site assessment beats any online estimate, because the header, the power supply, and the existing frame decide most of the price. Our overview of commercial door installation costs in Toronto explains why the same door can cost very different amounts at two addresses.
Choosing the right automatic door for your business
Match the door to the traffic and the space. High two-way pedestrian flow at a grocery or clinic points to sliding doors. An accessibility upgrade on an existing office or retail entrance usually points to a low-energy swing operator on the door you already have. A tight vestibule with little wall space points to folding. A tower lobby fighting heating and cooling loss points to a revolving door with an accessible companion door beside it. When the door is going into a new build or a full renovation, it should be specified alongside the rest of the entrance rather than added later, which is the whole argument in our guide to choosing the right commercial door for a new build.
| Property type | Common choice | Why |
|---|---|---|
| Grocery, big-box retail | Full-energy sliding | Heavy two-way traffic, carts and hands full |
| Clinic, medical office | Sliding or low-energy swing | Accessibility and hygiene |
| Office, professional suite | Low-energy swing | Barrier-free upgrade of an existing door |
| Restaurant, small retail | Low-energy swing or folding | Limited space, moderate traffic |
| Tower lobby, hotel | Revolving plus accessible door | Energy control with a compliant path |
Working with a GTA automatic door specialist
Automatic doors sit at the intersection of glass, hardware, electrical, and accessibility code, which is why they are worth handing to a team that works on all of it rather than a general handyman. A proper service call starts by watching the door cycle, checking the sensors and hold-open time against the applicable standard, and confirming the opening still meets the barrier-free numbers, before anything gets adjusted or replaced. Whether the entrance is a storefront slider, a barrier-free swing at a clinic, or a bank of doors at an office tower, the goal is a door that opens reliably, closes safely, and passes an accessibility check.
Need an automatic door assessed, repaired, or installed in the GTA?
Commercial Door Pros services and installs commercial automatic doors across Toronto and the surrounding region. Book an on-site assessment through our automatic door operator repair, replacement, and installation team, browse the full range of commercial door services, or contact us for a free estimate. For entrances that have failed and cannot wait, our emergency door repair line covers the region.
Frequently asked questions
What are commercial automatic doors?
Commercial automatic doors are pedestrian entrances in business or institutional buildings that open and close under powered control. An operator drives the door, an activation device such as a motion sensor or push plate tells it when to open, and safety sensors keep it from striking anyone. Common formats are sliding, swinging, and folding.
What is the difference between a full-energy and a low-energy automatic door?
A full-energy door opens quickly on its own when sensors detect someone, so it relies on presence sensors and guide rails to stay safe. A low-energy door opens slowly and gently after a deliberate act such as a push-plate press, and its reduced speed and force are the safety measure. They follow different ANSI/BHMA standards.
What types of automatic doors are used in commercial buildings?
The four common families are sliding, swinging, folding, and revolving. Sliding doors carry heavy retail traffic, swing operators handle accessibility retrofits on existing doors, folding doors fit tight vestibules, and revolving doors control energy loss at large lobbies while a companion accessible door sits alongside them.
How do automatic doors detect people?
Most use header-mounted motion sensors that trigger the door when someone approaches, plus presence sensors that hold it open while a person is still in the opening. Low-energy doors instead wait for a knowing act such as a push plate, a touchless wave switch, or an access-control credential before opening.
Are automatic doors required for accessibility in Ontario?
In many cases, yes. The current Ontario Building Code requires a power door operator on every door that provides a barrier-free path through a barrier-free entrance, under Article 3.8.3.3. That is why so many accessible entrances at offices, clinics, and public buildings use powered doors rather than manual ones.
How wide does an automatic door opening have to be in Ontario?
A doorway in a barrier-free path must give a clear width of at least 850 mm with the door in the open position under the current Ontario Building Code. Automatic sliding and swing doors are usually sized so the clear opening meets or exceeds that figure comfortably.
How long should an automatic door stay open?
Under the governing ANSI/BHMA standards, both full-energy and low-energy doors hold open for a minimum of five seconds once fully open, and low-energy swing doors take at least three seconds to reach the open position. A technician can adjust the exact timing within the allowed range for your traffic.
What standards govern automatic doors in Canada?
The equipment follows the ANSI/BHMA A156 series: A156.10 for full-energy sliding, swing, and folding doors, A156.19 for low-energy and power-assist swing doors, and A156.38 for low-energy sliding and folding doors. Accessibility and installation are governed by the Ontario Building Code and the Accessibility for Ontarians with Disabilities Act.
What are common problems with commercial automatic doors?
Typical faults include a door that will not close because of a dirty or misaligned safety sensor, slow or stalling operation from a worn belt or motor, grinding from worn rollers or track, ghosting from an oversensitive sensor, and hard slamming from a closing-speed setting that has drifted out of spec.
How much do commercial automatic doors cost?
Cost depends on the operator type, whether the door is low-energy or full-energy, the configuration, the glass and framing, the sensors, and the electrical work at the header. Adding a low-energy swing operator to an existing door sits at the low end, while new full-energy sliding doors with fresh storefront framing sit much higher. An on-site assessment gives the real figure.
Can an existing manual door be converted to automatic?
Often, yes. A low-energy swing operator can mount on the header above many existing commercial doors and frames, which is the usual way an accessible entrance is created without a full rebuild. The door, hinges, and frame have to be sound and correctly sized, and power has to reach the header.
How often should automatic doors be inspected?
Industry practice calls for a quick daily safety check by building staff and a full inspection at least once a year by a trained technician. The daily check confirms safe speed, hold-open time, and sensor function. The annual inspection covers the operator, sensors, guide rails, and wear parts against the applicable standard.
What is the typical lifespan of a commercial automatic door?
A well-maintained commercial operator commonly lasts many years and millions of cycles, but the real number depends on traffic volume, environment, and maintenance. Wear parts such as belts, rollers, and sensors are replaced along the way, and the operator is usually retired once repairs stop being cost-effective or the door no longer meets current accessibility rules.
Do automatic doors work during a power outage?
Behaviour during an outage depends on the door and its role. Many break out or can be pushed open manually so people are never trapped, and doors in required exits are designed to allow egress without power. Some entrances add battery backup so the door keeps cycling briefly. Confirm the failure mode for your specific door with the installer.
Are automatic doors safe for fire exits and egress?
They can be, but the automatic-door equipment standard A156.10 does not by itself cover fire exits and emergency doors, which follow the fire and life-safety side of the code. An automatic door in a required exit or a rated wall has to release for egress and meet the fire door rules, so it needs to be specified with those requirements in mind.
What is the difference between an automatic door and a power-assist door?
A power-assist door reduces the force a person needs to push it open but still requires them to push, while a low-energy or full-energy automatic door opens the leaf for them. Power assist follows the same A156.19 standard as low-energy swing doors and is useful where a light nudge is enough to help.
Why is my automatic door not closing properly?
The usual culprit is a safety sensor that is dirty, misaligned, or aimed wrong, so the door thinks someone is still in the opening and holds. Worn rollers, a stretched belt, or a closing-speed setting drifting out of spec can also stop a clean close. A technician can isolate which one it is quickly.
Who repairs commercial automatic doors in the GTA?
A commercial door specialist that handles operators, sensors, glass, and accessibility code is the right call, rather than a general handyman. Commercial Door Pros services and installs automatic doors across Toronto and the surrounding region, and can assess an existing entrance against the current standards before recommending a repair or replacement.
Editor note (images): three images accompany this article. Hero: automatic glass sliding entrance with aluminum frames at a GTA commercial storefront (16:9, JPEG, 1376×768, featured image). Inline 1 placed in the operators section. Inline 2 placed in the accessibility section. Full filenames, dimensions, ALT text, and Higgsfield prompts are recorded in the publishing log. Suggested designer graphics the team may want built by hand rather than generated: a labelled cross-section diagram of a sliding door header showing operator, belt, carrier, and sensors; a comparison chart of the three ANSI/BHMA standards; and a barrier-free dimension diagram showing the 850 mm clear width and control-height range, since AI image tools are unreliable for technical labels.
