Safety Sensor Specialists

Garage Door Sensor Repair Calgary

Garage door reversing when closing, blinking lights, or a door that simply won't close? The cause is almost always the safety sensors. Our Calgary technicians diagnose and fix sensor issues in under 30 minutes.

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No obligation · Same-day availability

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Snow & Ice Sensor Blockage

In Calgary winters, blowing snow and ice crystals accumulate on sensor lenses and in the beam path, causing false reversals during snowstorms. We realign sensors to optimal height, add protective housings where applicable, and seal mounting brackets to prevent frost build-up on the lens during -40 °C cold snaps.

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Cold-Cracked Sensor Wiring Repair

Extreme cold causes sensor wire insulation to crack and sensor mounts to shift as brackets contract. Calgary's -40 °C winters crack wire insulation at flex points near the sensor, causing intermittent failures only in cold weather. We replace cold-damaged wiring with silicone-jacketed wire rated for extreme temperature cycling.

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Frost Heave Sensor Realignment

Calgary's freeze-thaw cycle heaves garage floor slabs slightly each spring, shifting floor-mounted sensor brackets off-axis. We realign sensors after every heave event, use vibration-resistant mounts, and set alignment with appropriate tolerance to handle ongoing seasonal concrete movement.

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Weatherproof Sensor Replacement & Upgrade

Sensors damaged by ice impacts or cold-cracked housings need replacement. We install sensors in sealed weatherproof housings with cable strain-relief rated for Calgary's temperature range — significantly more durable than stock sensors in Alberta's extreme seasonal climate.

Why Calgary Homeowners Call Us First

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Certified Technicians

Journeyman-certified with 15+ years experience in Calgary's extreme climate.

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Upfront Pricing

Written estimate before work begins. The quote you get is the price you pay.

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60-Min Response

Available 24/7 — NE, NW, SE, SW Calgary, Airdrie, Okotoks & Cochrane.

Frequently Asked Questions

Why do my garage door sensors fail only in Calgary winters?

At -20°C to -40°C, sensor lenses frost over and wiring insulation cracks, interrupting the infrared beam. Snow drifting between sensor brackets is also a leading cause of Calgary winter-only failures. We clean lenses, replace cold-cracked wiring, and install frost-rated weatherproof sensor housings.

Snow or ice is blocking my garage door sensors — what can I do right now?

Gently brush snow away from both sensor brackets and wipe the lenses dry with a clean cloth. If the door still won't close, the sensor may have shifted from frost heave. Call us — we'll re-align and verify full operation before leaving your property.

Can I bypass the sensors?

No — bypassing or disabling safety sensors is illegal under Alberta building code and creates a serious hazard. We restore sensors to full working order safely and quickly.