Commercial Garage Door Photo Eye and Safety Edge Repair — Vancouver
A commercial overhead door that does not auto-reverse on contact is a liability — and in many jurisdictions, a code violation. Photo eyes and safety edges are the two main safety systems on commercial doors. When they fail or drift out of calibration, the door becomes a hazard. We inspect, align, and replace photo eyes, contact safety edges, and loop detectors on commercial overhead doors across Greater Vancouver. Call 604-206-5727.
Photo Eye Systems
Photo eyes are infrared beam sensors mounted on both sides of the door opening — one transmitter, one receiver. When the beam is broken while the door is closing, the door reverses. Alignment drift is the most common issue: the transmitter and receiver need to be within a degree or two of each other to maintain a reliable beam. Vibration from operating the door, cleaning, and accidental contact all knock photo eyes out of alignment over time. Dirty lenses and wiring damage are the other common failure points.
Contact Safety Edges
A contact safety edge is a pneumatic or electric strip across the bottom of the door that triggers a reversal when it contacts an object. Contact edges are more reliable than photo eyes in dirty or high-airflow environments — a beam sensor in a dusty warehouse or near a dock fan can generate false signals, but a contact edge is trigger-on-contact only. We replace worn contact edge gaskets and repair or replace the control module when it fails.
Loop Detectors
Loop detectors are wire loops embedded in the concrete in front of or behind the door that detect a vehicle and signal the door to open or hold open. Loop failures are common after concrete work, resurfacing, or if the loop wire was damaged during paving. We do not resurface concrete, but we can diagnose loop failures and advise on options including surface-mount loop alternatives.
Testing and Documentation
After any safety device repair or adjustment, we perform a full safety test — place an obstruction under the closing door and confirm auto-reverse activates. For strata and commercial properties that need documentation, we can provide a written safety test record.
Frequently Asked Questions
How do I test if my commercial door photo eyes are working?
With the door closing, break the beam path between the two sensors with your hand or an object. The door should immediately reverse. If it does not, the photo eye system is not functioning. Take the door out of auto-close mode and call for service.
Can photo eyes on commercial doors be replaced without calling a technician?
The sensor units themselves can be swapped, but alignment and wiring connection to the operator control board require knowing the specific operator model. An improperly wired photo eye can either fail to prevent auto-close (dangerous) or trigger false reversal on every cycle (operationally disruptive). We recommend professional installation.
What is the difference between a photo eye and a safety edge on a commercial door?
A photo eye uses an infrared beam across the opening that, when broken, reverses the door before it contacts anything. A safety edge is a physical strip on the bottom of the door that reverses when it contacts an object. Safety edges are required on many commercial applications where a vehicle or person could be hit by the door before breaking the beam.
Who repairs commercial door safety devices in Vancouver?
We service photo eyes, contact safety edges, and loop detectors on commercial overhead doors across Greater Vancouver. Call 604-206-5727 for same-day service or inspection.
Call us for commercial door service in Vancouver: 604‑206‑5727 — same-day response, 24/7 emergency, honest quotes before any work starts.