Bloomfield Hills Garage Door Co
Our technician in plain workwear kneeling at the side of a garage door opening, holding a small safety sensor eye next to its bracket on the track, daylight

Sensor repair · Bloomfield Hills, MI

Garage Door Sensor Repair in Bloomfield Hills

Door won't close, or closes a little and bounces back up? We realign, clean, rewire or replace the safety sensors at your home and test the door until it closes and reverses the way it should. Tell us what the lights on the sensors are doing when you call.

CALL NOW: (248) 975-7351
  • Licensed and insured
  • Upfront quote before work begins
  • Parts-and-labor warranty

Sensor repair

Garage door sensor repair fixes the part that tells the door it is safe to close

Residential garage door openers are required to have a safety reversing system, and the photo-eye sensors are the part you notice. One eye sits on each side of the opening, a few inches off the floor. They send an invisible beam across the doorway. If something breaks that beam while the door is closing, the door stops and travels back up.

That is why a sensor problem looks like a door problem. A door that will not close, closes partway and reverses, or flashes the opener light and does nothing is often a sensor issue and nothing more. The usual causes are small and physical: a bracket that has been bumped out of line, a lens covered in dust or a cobweb, low sun shining into a receiving eye, a wire stapled too tightly that has frayed, or a sensor that has failed after years of vibration.

We check the sensors first because they are the quickest thing to rule in or out. If they are not the cause, we move on to the springs, tracks and opener instead of leaving you with a door that still will not close.

CALL NOW: (248) 975-7351
Our technician in plain workwear wiping the lens of a small photo eye sensor mounted near the floor beside a garage door track, plain unmarked housing

What we check

What we check on a sensor repair

Alignment of the two eyes

The sending eye and the receiving eye have to face each other dead on. A small knock to a bracket is enough to break the beam. We realign them and watch the indicator lights come on steady.

Lenses and sunlight

Dirt, spider webs and even a low winter sun can confuse an eye. We clean the lenses and, if the sun is the problem, we adjust the position or shade so the beam stays steady.

Wiring and connections

The thin low voltage wire runs from each eye up the wall to the opener. We look for a break, a staple through the wire, a chewed section or a loose terminal at the opener head.

The sensors themselves

If an eye has failed we replace it, usually as a matched pair so the two work together. We make sure the new set is compatible with your opener.

The opener's reversing behavior

With the sensors working, we test that the door reverses when the beam is broken and that it reverses on contact too. If it does not, the force setting or the opener itself needs work, and that is a job for opener repair.

CALL NOW: (248) 975-7351

How it works

How a sensor repair visit goes

  1. 01

    You tell us what the door is doing

    Does it close at all? Is the opener light flashing? Are the sensor lights on, off or blinking? That helps us bring the right parts.

  2. 02

    We come out and check it

    Our uniformed technician looks at the sensors, the wire and the opener, and tests the door to see where the beam is failing.

  3. 03

    We explain what we found and what it costs

    You get an upfront quote before any work begins. The price depends on whether this is an adjustment, a wire repair or a replacement set.

  4. 04

    We fix it and test the reversing system

    We realign, repair or replace, then run the door several times, including a test with an object in the path, to be sure it reverses every time. The work is backed by a parts-and-labor warranty.

CALL NOW: (248) 975-7351

Sensor trouble

Blinking light and a door that will not close? Tell us what you see on the sensors and we will tell you what the repair likely involves.

CALL NOW: (248) 975-7351

Our work

Sensor repair, from blinking lights to steady beam

Close-up of a garage door sensor eye mounted on a bracket on a track with a small steady indicator light glowing, plain unmarked housing
An eye aligned and lit steady
A closed tan garage door on a brick colonial style house with a clean driveway, afternoon light
A door closing normally again
Our technician in plain workwear checking a thin low voltage wire running along the wall of a garage from a sensor up to the opener
Checking the sensor wire

FAQ

Questions about garage door sensors

Why does my garage door go down and bounce back up?
The door thinks something is in its path. The usual reasons are a misaligned or dirty sensor, a damaged wire, or a force setting that is too sensitive. We check the sensors first, then the opener's settings, because that is the order that finds the cause fastest.
What do the lights on the garage door sensors mean?
On many sensor sets, a steady light on both eyes means the beam is good. A dark or blinking light on one eye usually points to misalignment, a dirty lens or a wiring fault. Tell us which eye is off and what the light is doing.
Can I bypass the sensors so the door closes?
No, we do not recommend it. The sensors are a safety device that stops the door from closing on a child, a pet or a car bumper. Taking them out of the system leaves the door without that protection, and we would rather fix the cause.
Is a sensor repair always the fix?
No. A door that will not close can also be a spring, cable, track or opener issue. If the sensors check out, we tell you so and move on to the parts that fit the symptom, including a broken spring if the door is heavy.
Do both sensors need replacing?
Usually they are replaced as a matched pair so the beam and the receiver work together. If only one eye is at fault and the other is the same model, we tell you what makes sense for your opener.
What decides the cost?
Whether it is an adjustment, a wire repair or a new set, and what your opener needs. You get the quote in full before we start.
What should I check before I call?
Look at the small lights on both sensors, wipe the lenses with a soft cloth, and make sure nothing is blocking the beam. Then tell us what you saw.

Call us

Door won't close and the sensors are blinking?

Tell us what the lights are doing. We will come out, check the sensors and the wire, and explain the fix and the quote before any work starts.

CALL NOW: (248) 975-7351
  • Licensed and insured
  • Upfront quote before work begins
  • Parts-and-labor warranty