Full 25-point door and opener safety check with every visit - springs, cables, rollers, tracks, and your LiftMaster or Chamberlain opener included
You get a price before we start. It does not change when the truck arrives.
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Garage door sensor calibration in Redmond typically costs between $95 and $165, depending on whether the issue stems from simple physical misalignment or degraded wiring connections. If your garage door reverses immediately upon closing or the motor unit lights are flashing, the safety sensors-also known as photo-eyes-are likely the culprit. At Servo Garage Doors Redmond, we provide flat-rate, written pricing for all sensor adjustments as part of our Garage Door Repair services, ensuring you know the cost before a technician touches your equipment. If you are experiencing these issues, call (425) 305-4847 to schedule a technician who will document the exact failure point before any repair begins.
We operate under The Haven Standard, which means we do not guess at problems or perform “urgent” upsells. Whether you have a Chamberlain, LiftMaster, or Genie system, our process relies on evidence. When we arrive at your home in Redmond, we perform a thorough inspection of the safety sensors to determine if the issue is a simple bump in alignment or a failing wire. If you need broader assistance, our main Garage Door Repair in Redmond page covers the full scope of our mechanical services.
When You Need Sensor Calibration
Garage door sensors are designed to prevent the door from closing on people, pets, or vehicles. When they lose calibration or connection, the garage door system defaults to a safety-stop mode. Recognizing these signs early helps you avoid unnecessary service calls.
- The door reverses immediately: When you press the wall button or remote, the door starts to close but stops and reverses within a few inches. This is the most common sign that the photo-eyes are not “seeing” each other across the garage threshold.
- Flashing lights on the motor unit: Most modern openers, including Craftsman and Wayne Dalton models, will blink a diagnostic code via the LED light on the motor housing when there is a sensor error.
- The door only closes when holding the wall button: If you have to keep your finger on the wall-mounted button to force the door shut, the system has detected a safety fault and is bypassing the automatic sensors. This is a temporary measure and should be addressed promptly.
- Intermittent operation during wet weather: Redmond sees significant moisture throughout the year. If your door works fine on dry days but fails during heavy rain, you likely have moisture-compromised wiring at the sensor base or along the track.
- Physical misalignment: If a bike, storage bin, or car has bumped the sensor housing, it may be pointing slightly away from its partner. Even a fraction of an inch of misalignment is enough to break the infrared beam.
If you notice these symptoms, the system is working as intended by refusing to close. However, it is a significant inconvenience and a security risk to leave your garage door unable to close properly. Call (425) 305-4847, and we will get a technician out to verify the alignment or wiring.
Our Sensor Calibration Process
We follow a strict, documented process for every service visit. We do not believe in “quick fixes” that fail a week later. Our approach is designed to provide you with a permanent solution and a clear paper trail, as required by The Haven Standard.
- Initial Testing and Diagnostic: The technician first tests the garage door operation to confirm the sensor fault. We check the power supply to the sensors and the physical integrity of the wires running from the motor unit to the floor.
- Photo Documentation: Following Clause 4 of The Haven Standard, we photograph the failed component. If the sensor is misaligned, we show you the angle. If the wiring is corroded-a common issue in the humid Redmond climate-we show you the oxidation. You see the evidence before we discuss the repair.
- Written Price and Scope: Per Clause 1 of The Haven Standard, we provide a flat, written price for the calibration or replacement before any work begins. You will know exactly what the cost is, and we do not change the price once the job is underway.
- Precision Alignment: We use specialized tools to ensure the infrared beam is perfectly centered between the two sensors. We test this alignment at multiple points to ensure the door closes consistently every time.
- Verification and Final Report: We cycle the door multiple times to ensure the calibration holds. You receive a final report documenting the work performed, which serves as your warranty record.
Our technicians are background-checked and uniformed, and they arrive with the tools to service major brands like Clopay, Amarr, and Raynor on the spot. We are independently owned and operated, and we take pride in the 18,000+ garage doors we have made right since 2015.
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We believe in upfront, written pricing. We do not hide costs or provide vague estimates over the phone. When you call us, we provide a clear range based on the symptoms you describe, and our technician confirms the final, flat-rate price upon arrival and inspection. We offer a Free Second Opinion on any written estimate you have received from another company.
| Service Type | Estimated Cost Range |
|---|---|
| Sensor Alignment & Cleaning | $95 - $125 |
| Wiring Repair (Minor) | $110 - $145 |
| Sensor Replacement (Pair) | $130 - $165 |
If you have a written quote from another company that is higher than our range, bring it to us. We will review it and provide our own assessment at no charge. We do not use coupons or gimmicks to lower the price; we simply offer honest, documented work at a fair market rate. Call (425) 305-4847 for an exact quote on your specific garage door system.
FAQs - Sensor Calibration
Why does my garage door sensor keep blinking?
A blinking sensor light typically indicates that the infrared beam between the two photo-eyes has been interrupted or that the sensors are misaligned. The blinking is the system’s way of telling you that it cannot complete a safety check, so it prevents the door from closing to avoid a potential injury or property damage.
Can I fix the sensor alignment myself?
You can often realign the sensors by loosening the wingnut on the sensor bracket and adjusting it until the indicator light on the sensor turns solid, but if the issue is internal wiring or a failing logic board, you will need a professional. Please be aware that while sensors are low-voltage, other parts of the garage door system, such as the torsion springs and cables, are under extreme tension and are dangerous to handle without proper training. If you are uncomfortable, call (425) 305-4847 for a professional inspection.
Is it cheaper to repair the sensors or replace the whole opener?
It is almost always more cost-effective to repair or replace the sensors rather than the entire opener unit, provided the motor itself is in good working order. If your opener is more than 15 years old, we will tell you if the cost of ongoing repairs is approaching the price of a new unit, but we will never pressure you into an unnecessary replacement.
How long does a sensor calibration take?
A standard sensor calibration and alignment usually takes between 30 and 60 minutes. This includes our full inspection, the documentation of the issue, the adjustment, and final testing to ensure the door operates reliably. We offer same-day service for many calls; call (425) 305-4847 to check our current availability in Redmond.
If you are struggling with a door that refuses to close, or if you have concerns about the safety of your current setup, we are here to help. At Servo Garage Doors Redmond, we believe in transparency, documentation, and getting the job done right the first time. We are available 24/7, and every call is answered by a real person who can help you get your garage door back in working order. Call (425) 305-4847 today for a free estimate or to schedule your service.
Written by Marcus Deller, Owner at Servo Garage Doors Redmond, serving Redmond since 2015.