Garage Door Sensor & Keypad Repair
A door that starts down, changes its mind and rolls back up is almost never broken in the way people assume. Garage Door Experts Houston traces the safety sensors, wiring, wall button, keypad and remotes until we find the one that's actually at fault — usually in a single visit.
- Photo-Eye Alignment
- Keypads & Remotes
- Same-Day Service
Common Symptoms
Signs the Controls Are the Problem
If the door itself moves freely by hand but the controls misbehave, these are the patterns we see most:
- It closes a foot, then reverses. The classic photo-eye complaint. One sensor has been nudged out of alignment, or its lens is fogged, dusty or hit by low afternoon sun.
- It opens fine but won't close at all. Openers are built to refuse to close when the safety beam is broken or the circuit is open, so a pinched or corroded sensor wire produces exactly this.
- The opener light blinks and nothing happens. Most brands flash a code at you when the beam is blocked. It's a message, not a malfunction.
- The keypad stopped working. Sometimes it's a battery and a fresh code; sometimes the rubber buttons have finally given up after years of sun and damp on an outdoor wall.
- The wall button is dead. Staples through the low-voltage wire during a remodel, or a failed button, will take out the one control you use most.
Don't Disable the Safety Sensors
Taping a sensor to something, aiming the eyes at each other away from the opening, or holding a control down to force a stubborn door closed all remove the one feature that stops a moving door on a child or a pet. If your door won't close, leave it open and call us — the fix is usually small.
What We Do
What This Service Covers
Photo-Eye Alignment
Both eyes get re-aimed, remounted square and set at the correct height above the floor, then we confirm a steady indicator light on each one instead of a flicker.
Sensor Wiring Repair
Staple damage, rodent chewing, corroded splices and brittle insulation in a damp garage all break the circuit. We trace the run back to the opener and repair or replace it.
Bracket and Mount Repair
Sensors bolted to a bent bracket drift out of line every time the door moves. New brackets and solid mounting stop the problem from coming back next month.
Wall Button and Control Panel
Dead buttons, failed multi-function panels and damaged low-voltage wiring replaced, including the lock and light functions on newer panels.
Keypad Repair or Replacement
Outdoor keypads take weather and sun for years. We re-pair the code, replace the battery seal or fit a new keypad that matches your opener.
Remotes and Car Buttons
New remotes programmed, old ones cleared out when a house changes hands, and in-car buttons paired to the opener. More in our opener troubleshooting guide →
Your Options
Repair the Controls, or Look Deeper
Most of these visits end with a realigned pair of sensors, a repaired wire or a new keypad, and the door behaving again the same afternoon. But the controls are also where a mechanical problem shows up first: an opener will reverse on its own if the door is binding on a bent track or dragging against a worn roller, because it reads the extra resistance as an obstruction. That's why we test the door by hand before touching the electronics — if the cause turns out to be hardware, it goes to off-track repair or cable and roller repair instead. When the fault is inside an aging opener whose boards and sensors are no longer made, opener repair covers replacement units, and our repair vs. replacement guide explains how we weigh that against the age of the door. A yearly tune-up includes the same safety test we run here, which is how most sensor faults get caught before they lock you out.
Sensor Questions
What Houston Homeowners Ask Us
Why does my garage door close halfway and go back up?
Nine times out of ten the safety sensors at the bottom of the tracks have lost their line of sight — knocked, dusty, fogged or facing into direct sun. The rest of the time the door is binding on something and the opener reads it as an obstruction. Both are same-day fixes.
Can I clean the sensors myself while I wait?
Yes. Wipe both lenses with a soft dry cloth, move anything stored near the tracks, and check that nothing is leaning against the brackets. If the indicator lights still don't hold steady, the alignment or the wiring needs attention — see our guide to a door that won't open.
My keypad stopped working after a power cut. Is it broken?
Usually not. Openers can lose stored codes after an outage or a board reset, so the keypad and remotes simply need to be programmed again. If the pad is cracked or the buttons no longer respond at all, Garage Door Experts Houston replaces it with one that matches your opener.
Can you add a keypad to an older opener?
Often, yes — it depends on whether your opener uses a compatible frequency and rolling-code system. We check the model on-site and tell you straight away whether a keypad can be added or whether an opener upgrade is the sensible route. Call (XXX) XXX-XXXX and we'll bring the options.
Door won't close?
Same-day sensor, keypad and control repair across Greater Houston — call now or request service online.