Serving Boulder

Garage Door Sensor Blinking in Longmont, CO

A blinking sensor light is your opener telling you exactly where the problem is — let's clear it.

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Tell us what's happening — we'll text a real arrival window.

A blinking garage door sensor in Longmont almost always means the two photo-eyes aren't seeing each other. It's usually a quick alignment or cleaning.

There's a local angle to a garage door sensor blinking in Longmont: the area's freezing cold and heavy snow is hard on garage doors — cold snaps brittle springs, and ice freezes doors shut. Our Longmont techs see these failures spike around every winter cold snap, so they track down the real cause instead of masking the symptom.

What might be wrong

Common causes when your garage door sensor blinking

Here's what our local techs check first — and what each one usually means.

Misalignment

A bumped bracket throws the sensors out of line and they start blinking.

Dirt or sun glare on the lens

A dusty lens or direct sun can break the beam.

A damaged sensor wire

A pinched or chewed wire interrupts the signal.

How we fix it

Fixed fast by a local Longmont pro

We realign and clean the sensors, check the wiring, and confirm the door closes without blinking or reversing.

See our Opener Repair

Why call a pro?

Garage doors are heavy and spring-loaded. A licensed tech diagnoses the real cause, fixes it safely, and backs it with a 1-year warranty — usually the same day you call.

Our work