Sensor Alignment
Detailed Description
A Garage Door That Won’t Close in Your Toronto & GTA Home Is Usually a Sensor Problem — Not a Major Repair
The most common garage door operational failure in Toronto & GTA homes is a door that won’t close — it descends partway, reverses, and the opener light flashes. This is almost always the safety sensors at the bottom of the door tracks. The infrared beam between the two sensor eyes must be unobstructed and the sensors must be aligned with each other for the door to complete its downward travel. Sensors knocked out of alignment by a vehicle, a hose, or a child’s contact with the mounting bracket — even slightly — will trigger the safety reversal on every closing attempt. The fix is alignment, not replacement.
At CNG Contracting, sensor alignment in Toronto & GTA is done with the precision it requires — adjusting both sensor brackets until the indicator lights confirm beam alignment, testing with the door under full operational load, and securing the mounts so the alignment holds rather than shifting again with the next minor contact.
What Sensor Service Covers in Toronto & GTA
- Sensor Eye Alignment: Both sensor brackets adjusted until transmitter and receiver are in direct beam alignment — confirmed by indicator light status on both sensors.
- Mount Security: Brackets retightened and positioned so minor contact won’t shift alignment again — the failure mode that makes this a recurring call in Toronto & GTA homes with loose original mounts.
- Wire Inspection: Sensor wiring checked for damage, pinching, or loose terminal connections that cause intermittent failure even when physical alignment is correct.
- Full Operation Test: Door operated through multiple complete cycles — including obstruction test with object in sensor path — to confirm proper safety function before the job is done at your Toronto & GTA property.
Properly aligned and secured safety sensors mean a garage door that closes reliably every time in your Toronto & GTA home. Book your service today.
Service Details
| Includes | Sensor alignment, mount securing, wire inspection, operational test |
| Time on site | 30 minutes to 1 hour |
| Warranty | 2 years on workmanship |
| Licensed & insured | Yes |
| Service area | Toronto & GTA and surrounding GTA |
Frequently Asked — Garage Door Sensor Alignment in Toronto & GTA
My Toronto & GTA garage door won’t close — is it definitely the sensors?
A door that descends and reverses with the opener light flashing is almost always a sensor issue. A door that won’t move at all, makes grinding noise, or has a broken spring is a different problem. We diagnose during the visit and advise on the correct fix.
How do I book sensor alignment in Toronto & GTA?
Book online in under two minutes. Our Toronto & GTA team contacts you directly to schedule.
After Sensor Alignment — What to Check Next in Your Toronto & GTA Home
Sensor alignment resolves the vast majority of Toronto & GTA home garage door closing failures. If the door still won’t complete its downward travel after sensors are confirmed aligned and working correctly, the next likely causes are travel limit settings that have drifted out of calibration, force adjustment settings that are too sensitive for the door’s current weight and friction, or a mechanical component — spring tension, worn rollers — that’s creating resistance the opener’s force detection reads as an obstruction. We diagnose systematically during the service visit so Toronto & GTA homeowners leave with a complete picture of the door’s condition, not just a confirmed sensor fix and an unresolved closing problem.
Book Your Toronto & GTA Home Service With CNG Contracting
CNG Contracting has been serving Toronto & GTA and the GTA since 2005. Every service is performed by licensed and insured professionals with the experience to do the job correctly the first time. Our 2-year workmanship warranty means that if anything we’ve done doesn’t meet the standard we committed to, we come back. Book online in under two minutes — our Toronto & GTA team contacts you directly to confirm details and schedule at a time that works for your household. The right service, the right way, on your schedule.
Why is a Technical Visit necessary?
The most common reason a garage door reverses immediately after starting to close is a misaligned safety sensor. These "photo eyes" project an invisible infrared beam. If the sensor is bumped, loose, or even just dirty, the beam breaks, and the door assumes a child or pet is in the way. Our Sensor Alignment assessment uses alignment tools to lock the sensors back into perfect position and tightens the wing nuts to prevent future movement from vibration.
SCHEDULE AN INSPECTION
Request your technical visit.
Tell us what you need and a certified specialist will visit you to evaluate your project and give you a real quote the same day.
WHY DO I NEED A TECHNICAL VISIT?
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1Real diagnosis in your home. A technician evaluates materials, measurements, access, and local regulations.
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2The visit cost is discounted from the project. The fee is fully credited to your final invoice once you approve the quote.
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3No commitment if you don’t approve the quote. If you don’t accept the quote after the visit, there is no obligation to proceed.
- Certified technicians — licensed & insured
- Real quote — same day as the visit
- No surprises — no hidden costs
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