Garage Door Safety Sensors

Shop garage door safety sensors in Montreal or request help confirming the right sensor set for your garage door opener. Garage door safety sensors, also called photo eyes or safety reversing sensors, are installed near the bottom of the garage door opening and help prevent the door from closing when something is in the path.

Safety sensors are often included with a new garage door opener, but they can also be replaced separately when the existing sensors are damaged, misaligned, not lighting up, disconnected or no longer communicating with the opener. The correct sensor set depends on the opener brand, model number, wiring setup, sensor bracket style and existing opener system.

Confirm Sensor Compatibility

Garage Door Safety Sensors in Montreal

Garage door safety sensors are part of the automatic opener safety system. They are usually installed on both sides of the garage door near the floor. One sensor sends a signal and the other receives it. When the beam is blocked, misaligned or not detected properly, the opener may stop the door from closing.

If your garage door opens normally but does not close with the opener, or if the opener lights flash when trying to close, the problem may involve the safety sensors, wiring, alignment, brackets or opener logic board. Photos are recommended before ordering replacement sensors.

Common signs you may need garage door safety sensors

• The garage door opens but will not close with the opener
• The opener light flashes when trying to close the door
• One or both sensor lights are off
• The sensor lights are blinking or not staying solid
• The sensors are cracked, broken or physically damaged
• The sensor wires are cut, loose or damaged
• The sensor brackets are bent or missing
• The door only closes when holding the wall button

Compatibility must be confirmed

Garage door safety sensors are not always universal. Different opener brands and models may use different sensor types, wiring setups or safety systems. The correct replacement sensor set should be confirmed before ordering.

Compatibility may depend on:

• Garage door opener brand, such as LiftMaster, Chamberlain, Craftsman, Genie or other brands
• Opener model number
• Sensor type and safety system
• Wiring setup and wire condition
• Sensor bracket style
• Existing sensor lights and behavior
• Whether the issue is the sensors, wiring, alignment or opener motor

Often included with new openers, also replaceable separately

Many new garage door opener motors include a pair of safety sensors in the box. However, existing sensors can often be replaced separately if they are damaged, missing, not lighting up, incompatible or no longer working correctly with the opener.

If you are replacing only the sensors and not the full opener motor, the opener model and sensor compatibility should be confirmed first.

What to send before ordering

To help confirm the correct garage door safety sensors, please send us:

• A photo of the opener motor label with the model number
• A photo of both existing safety sensors
• A photo showing the sensor lights, if they turn on
• A photo of the sensor wiring and wire connections
• A photo of the sensor brackets on both sides
• A photo of the full garage door from inside the garage
• A short video of what happens when you try to close the door

Part only or installation help

You can order garage door safety sensors as replacement parts, or request professional installation help in the Montreal area.

• Buy Part Only: use the add to cart button only if the sensor compatibility was already confirmed.
• Confirm Sensor Compatibility: text us photos first so we can confirm the right sensor set, wiring situation and installation option.

Service areas

Garage door safety sensor parts, pickup options and installation help are available across Montreal, Laval, West Island, Longueuil, Brossard and nearby areas.

Safety note: Do not bypass, remove or disable garage door safety sensors. They are an important safety feature of the opener system. If the door will not close properly, the issue should be checked instead of forcing the opener to operate unsafely.