Garage Door Sensor Repair & Safety Alignment
Photo-eye safety sensors realigned, rewired or replaced so your door closes properly and stops reversing.
If your door goes down halfway and rolls straight back up, or the opener light blinks and nothing happens, the safety sensors are almost always the reason. The two photo-eyes near the floor have to see each other perfectly — a nudged bracket, a spider web, a sun glare or a nicked wire is enough to break the beam.
These sensors are a legal safety requirement on every opener made since 1993, and they are what stops a door closing on a child, a pet or the back of your car. We realign, rewire or replace them so the system is safe and reliable again.
Signs your safety sensors have failed
- The door closes partway then immediately reverses
- The opener light blinks repeatedly and the door will not move
- One sensor light is off, or flickering instead of steady
- The door only closes if you hold the wall button down
- A sensor bracket has been knocked loose or bumped by a vehicle
- Chewed, pinched or corroded sensor wiring
What the service covers
- Precise realignment of both photo-eye sensors
- Sensor wiring repair, replacement and re-routing out of harm's way
- Full sensor unit replacement where the eye has failed
- Bracket replacement and secure remounting
- Opener logic board diagnostics when the sensors test good
- Safety reverse and force testing to current standards
PricingSensor faults are often a quick, inexpensive fix. Call before you assume the whole opener is dead.
Where we provide garage door system sensor repair
We cover Cambridge, Kitchener, Waterloo and Guelph as core service areas, plus surrounding Southwestern Ontario and the Golden Horseshoe:
Sensor Repair in CambridgeSensor Repair in KitchenerSensor Repair in WaterlooSensor Repair in GuelphHamiltonBurlingtonMiltonMississaugaBramptonBrantfordWoodstockStratfordLondon
Related services
Good to Know
Garage Door System Sensor Repair — FAQs
Why does my garage door open but not close?
Nine times out of ten it is the safety sensors. The opener will always let the door go up, but it refuses to close if the photo-eye beam is broken or the two sensors are out of alignment.
Why is my garage door opener light blinking?
A blinking opener light is the standard signal that the safety sensor circuit is interrupted — misaligned eyes, a blocked beam, or a broken wire. The blink pattern varies by brand and tells us exactly where to look.
Can I just bypass the sensors?
No. Disabling them is unsafe and violates the safety standard every opener sold in Canada is built to. They are the last line of defence against a door closing on a person or pet — we repair them properly instead.
Customer Reviews
What Our Neighbours Say
Reviews left by real customers on our Google Business Profile.
★★★★★“Moe was amazing, professional and very detailed and clean work. Would highly recommend for any garage doors, garage door openers and installation servicing needs!”
★★★★★“Moe answered the phone in 1 ring, arrived swiftly and completed the job quickly. He provided maintenance tips to keep things in shape and was pleasant to deal with. I will call Moe for any future service. 10/10 would recommend to a friend.”
★★★★★“Moe did a fantastic job with the garage door repair. He was easy to deal with, on time and a pleasure to deal with. A very he a person. Thanks Moe!”
Open 24 Hours
Need Garage Door System Sensor Repair Today?
We answer 24 hours a day and carry the parts to finish most sensor repair jobs on the first visit.
- Fixed price agreed before any work starts
- Same-day service across Cambridge, Kitchener, Waterloo and Guelph
- 10+ years, locally owned and operated
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