2026-05-14 7 min read A2Z Garage Doors
Here's what most homeowners don't realize about garage door safety in Larkspur: your door weighs between 300 and 900 pounds and moves at speeds that can cause serious injury or death. Two safety features stand between your family and disaster: the photo eye sensor and the auto-reverse mechanism. Most people have never heard of them, let alone understand how they work. That's exactly why we're here.
The photo eye is a pair of invisible infrared beams positioned on each side of your garage door opening, roughly 6 inches from the floor. When something blocks these beams, the door stops and reverses. Think of it as a safety net for pets, children, or objects in the door's path.
Here's the catch: photo eyes fail silently. Dust, spider webs, condensation, or misalignment can block the beam without you knowing. You press the button, the door closes, and you assume everything's fine. But if that photo eye isn't working, a child or pet could be seriously hurt.
We recommend testing your photo eyes monthly. Walk through the doorway while the door is closing. It should reverse immediately. If it doesn't, call us right away. This isn't something to postpone.
Auto-reverse is your door's second line of defense. If something blocks the door's path during closing, the motor should sense the resistance and reverse direction within two seconds. This feature has been required on all residential garage doors since 1993.
Without auto-reverse, a door closing on a child's arm or head would continue downward. With it, the door backs away. The difference is literally life and death. Your opener's force settings must be calibrated correctly for auto-reverse to work properly. Too much force, and the mechanism might not trigger. Too little, and the door won't close against normal resistance.
We've seen too many openers in Larkspur and the surrounding area running with incorrect settings. Many homeowners adjust the force themselves without understanding the safety implications. This is one of those jobs where doing it right matters more than saving a few dollars.
**Need garage door safety in Larkspur today?** Call 720-459-9673 for same-day service across the area.
Garages are magnets for curious kids. A garage door can crush a child's fingers in seconds. Most injuries happen when children play with remote controls or push buttons without understanding the danger.
Teach your kids that the garage door is not a toy. Show them where the photo eye sensors are located. Explain that the door moves on its own and can hurt them. Keep remote controls out of reach. Consider installing a wall button high enough that only adults can reach it.
If you have young children, ask us about the latest child safety features when you schedule a free quote for safety upgrades. These aren't expensive add-ons. They're essential investments.
A garage door safety system only protects your family if it's maintained properly. Springs, cables, rollers, and hinges wear out over time. When they do, the door operates under stress, and safety sensors have to work harder.
Check out our guide on essential garage door spring maintenance to understand how worn components affect overall safety. Springs last roughly 7 to 9 years with normal use. When they fail, the door becomes dangerous to operate.
We also recommend reviewing the warning signs your door needs professional repair. Many safety problems announce themselves through unusual sounds, jerky movement, or slow response times.
If you notice your door acting strangely, don't ignore it. Contact Garage Door Company Larkspur for a professional inspection. We'll test every safety component and provide a transparent estimate for any repairs needed.
A comprehensive safety inspection takes about 30 minutes and typically costs between $75 and $150, depending on what we find. We test the photo eye sensors, auto-reverse mechanism, spring tension, cable condition, and opener force settings.
Many homeowners are surprised to learn that a small adjustment or replacement part can resolve safety issues they didn't know existed. We've found misaligned sensors, worn rollers affecting door balance, and openers running at dangerous force levels.
Don't wait for something to go wrong. If your garage door is more than five years old and you've never had it professionally inspected, call us today at 720-459-9673. We can arrange same-day service in most cases.
Your family's safety is worth the investment. A few minutes of professional attention now prevents tragedy later.
How often should I test my garage door photo eyes? Test your photo eye sensors monthly. Walk through the doorway while the door closes; it should reverse immediately. If it doesn't, contact a professional. Clean the sensor lenses with a soft cloth to prevent dust blockage.
What's the difference between auto-reverse and force-limit settings? Auto-reverse senses an obstruction and reverses the door. Force-limit prevents the door from closing if resistance exceeds a safe threshold. Both are required on modern openers and must be professionally calibrated for proper function.
Can I adjust the auto-reverse sensitivity myself? No. Incorrect adjustments create serious safety hazards. Always have a qualified technician handle force and sensitivity settings. The cost of a professional adjustment is minimal compared to the risk.
How do I know if my photo eyes are working properly? Close the door and hold your hand in front of the sensor during closing. The door should reverse. If it doesn't, the photo eye needs cleaning or replacement. Never rely on visual inspection alone.
Are older garage doors less safe than new ones? Older doors may lack modern safety features or have worn components that affect safety. If your door is over 15 years old, we recommend a full safety evaluation to identify upgrade opportunities.