Garage Door Sensor Repair & Alignment Ottawa | DPS Garage Doors
Safety Sensor Blinking?

Garage Door Sensor Repair & Alignment

A misaligned or faulty safety sensor is one of the most common reasons a garage door won’t close. We realign, repair, and replace sensors quickly — often in under 30 minutes.

613-884-1488 (Ottawa) 647-771-7139 (Mississauga)
Safety Certified
Often Fixed in 30 Min
All Brands
Sensor Services

Why Are Safety Sensors So Important?

Garage door safety sensors emit an infrared beam across the door’s path. If anything breaks that beam — a child, pet, or object — the door automatically reverses. This is a mandatory safety feature on all garage door openers made since 1993. When sensors malfunction, the door may refuse to close or worse — close on something.

  • Sensor bracket realignment & adjustment
  • Damaged sensor lens cleaning & replacement
  • Wiring repair between opener and sensors
  • Full sensor unit replacement (any brand)
  • Auto-reversal safety test & certification
  • Interference diagnostics (sunlight issues)
Call for Same-Day Sensor Fix

Fast Fix

Most sensor issues fixed in 30 min

Safety First

Auto-reversal tested after every job

All Brands

LiftMaster, Genie, Chamberlain & more

Affordable

Upfront pricing, no surprises

Warning Signs

Signs You Have a Sensor Problem

Won’t Close All the Way

Door closes a few inches then reverses back up

Opener Clicks 10 Times

The opener light blinks 10 times — sensor fault code

Yellow Light Blinking

Receiving sensor blinking = misaligned or obstructed

Only Fails in Sunlight

Direct sunlight can overpower sensor beam

No Light on Sensor

Loose wire or dead sensor unit

Sensor Bracket Bent

Knocked out of alignment by vehicle or lawn equipment

Our Process

How We Fix Your Sensors

1

Inspect & Diagnose

Check both sensors for alignment, wiring condition, lens cleanliness, and power supply.

2

Align or Replace

Realign brackets until both sensors show solid indicator lights. Replace units if faulty.

3

Safety Reversal Test

Test auto-reversal with an object in the door path — your door must reverse for safety compliance.

FAQ

Sensor FAQs

Can I bypass the safety sensors to close my door?
You can temporarily close the door by holding the wall button continuously — but this should only be used in an emergency. Operating a door with bypassed sensors is a serious safety hazard, especially with children or pets around. Get the sensors fixed as soon as possible.
Why does my garage door only fail to close sometimes?
Intermittent failure is often caused by morning or afternoon sunlight hitting one sensor directly, a vibrating bracket that briefly misaligns, or insects nesting in front of the sensor beam. We can diagnose and solve all of these.
How much does sensor repair cost?
Sensor repairs cost vary depending on conditions of the sensor. Simple realignment are cheaper. Replacing a damaged sensor unit typically costs more than repairing the sensor. We always quote before starting work.
Do new sensors work with my existing opener?
In most cases, yes — replacement sensors are available for virtually every opener brand. We carry compatible sensors for LiftMaster, Chamberlain, Genie, Craftsman, and many others.

Sensor Blinking? We’ll Fix It Today!

Quick, affordable sensor repair — Ottawa & Mississauga.

613-884-1488 Ottawa 647-771-7139 Mississauga

Related Services

Opener Repair

Motor, board & drive service

General Repair

Full garage door system service

Maintenance

Annual safety tune-up