Garage Door Sensor Repair in Austin, TX
Blinking sensor light? Door reverses for no reason? Sensor problems are quick to fix when you know what you're doing.
(512) 799-1245Real person answers · 30–90 min arrival · Austin, TX
Garage door safety sensors (photo-eye sensors) sit near the floor on each side of the door. They project an invisible infrared beam — if anything breaks the beam while the door is closing, it reverses automatically. This safety feature is critical, but sensors can cause problems when they're misaligned, dirty, or damaged. Shockwave repairs and replaces sensors for all opener brands and gets your door working reliably and safely.
Common Causes
How We Fix It
Sensor realignment takes 10–15 minutes. Sensor replacement takes 30–45 minutes and costs $75–$150 depending on brand. We test the safety reversal before leaving to make sure everything is working correctly.
Frequently Asked Questions
How do I know if my sensors are the problem?
Look at the sensor lights near the floor. A solid green/amber light on both sides means they're aligned. A blinking or off light on either side means they're misaligned or faulty. Most openers also blink the main light 10 times when there's a sensor issue.
Can I bypass the sensors?
Technically yes — you can hold the wall button to override the sensors. But this defeats a critical safety feature that prevents the door from crushing people or pets. We strongly recommend against bypassing and instead fixing the root cause.
How much does sensor repair cost?
Realignment only: $65–$85 service call. Sensor replacement: $75–$150 for parts and labor. We quote before any work begins.
Why do my sensors keep going out of alignment?
This happens when the sensor brackets are loose or the mounting surface vibrates. We'll tighten the brackets and, if needed, reposition them to a more stable mounting point.
Do you carry replacement sensors for all brands?
We carry sensors compatible with LiftMaster, Chamberlain, Genie, and most other major brands. For unusual or discontinued openers, we source compatible aftermarket sensors that work correctly.
Get Help Right Now
Call and speak to a real technician — no hold music, no voicemail. We dispatch fast across Austin.
(512) 799-1245Available 24/7 · Licensed & Insured · Austin, TX