2026-06-02 7 min read A2Z Garage Doors
If you've ever watched a garage door close and wondered whether it could crush something in its path, you're not alone. Modern garage doors pack serious force, and without the right safety features in place, injuries happen fast. The good news: proven safety technology exists today that stops doors before they cause harm.
Garage doors are the largest moving object in most homes. A standard door weighs 300 to 500 pounds and closes with enough force to cause severe injury or death. In Massachusetts, emergency rooms treat garage door accidents every year. Children and pets are most at risk, but adults get caught too when they misjudge timing or stand in the wrong spot.
Most Andover homeowners don't realize their older doors lack basic protective systems. Doors installed before 2010 often have no auto-reverse feature. Doors from the 1990s might have photo eyes that no longer align properly. These gaps leave your family exposed to real danger.
The good news: upgrading your safety features is affordable, quick, and can be done during a routine tune-up or inspection.
Auto-reverse is the most critical safety system on any garage door. When the closing door encounters an obstruction, sensors trigger the motor to stop and reverse direction immediately. This happens in less than a second.
Here's what happens without it: the door keeps crushing whatever is underneath. With auto-reverse: the door lifts back up. The difference between a bruised arm and a broken one.
Federal safety standards have required auto-reverse on all garage doors since 1993. But the system only works if the sensors are clean, properly aligned, and the motor responds correctly. We've seen doors in Andover with sensors covered in dust or knocked out of position by a careless bump. When we test them during a garage door tune-up in Andover, cost varies based on what needs adjustment, but the investment pays for itself in peace of mind.
**Need garage door safety in Andover today?** Call (978) 396-2682. We cover same-day service across the area and can test your auto-reverse function on your first visit.
Photo eyes are the small sensors mounted on either side of your garage door opening, about 6 inches off the ground. One emits an invisible beam; the other receives it. If anything breaks that beam while the door closes, the auto-reverse kicks in.
These sensors are brilliant but fragile. A spider web, a layer of pollen, or a bump from a bicycle can knock them out of alignment. When they fail, your auto-reverse can't work. We've found countless photo eyes in Andover homes that haven't been checked in years.
You can test yours right now: close the door and wave your hand through the beam near the ground. The door should stop and reverse. If it doesn't, call for an inspection immediately. This is not something to ignore.
Proper sensor calibration takes 15 to 20 minutes and costs far less than an emergency room visit. For a complete walkthrough of how these systems work, read our full sensor calibration guide for homeowners.
Modern garage door openers include child safety locks that prevent kids from opening the door with a remote or wall button. The manual release handle gives you a way to open the door by hand during a power outage without relying on electricity.
Test your manual release handle monthly. Pull it gently, then try operating the door. It should feel loose when engaged, allowing you to push or pull the door up by hand. If it's stiff or doesn't move, the mechanism needs lubrication or repair.
Keep remotes away from young children. Even toddlers can trigger the door, and curious kids sometimes hide under or behind closing doors. Educate your family about garage door hazards the same way you would about any heavy machinery.
If your garage door starts closing and won't stop, or if it closes on something and won't reverse, stop using it immediately. Don't try to force it open or bypass safety features. This is the moment to get a same-day estimate from our team.
Andover Garage Doors has handled hundreds of safety emergencies. We can diagnose the problem, explain your options, and provide a cost estimate on the phone before you commit to anything. Many issues are fixable without replacing the entire door.
For more guidance on handling unexpected failures, review our emergency garage door repair guide for Andover homeowners.
Your garage door's safety systems are only as good as their condition. A spring that's about to fail, sensors that are out of alignment, or an auto-reverse that's sluggish can all lead to injury.
Schedule a professional inspection with Andover Garage Doors. We'll test every safety feature, show you exactly what's working and what isn't, and explain your options with no pressure. Call (978) 396-2682 or contact us online to book your safety inspection.
Your family's safety is too important to guess about.
What's the difference between auto-reverse and photo eyes? Auto-reverse is the motor's ability to reverse direction when it hits something. Photo eyes are sensors that detect obstacles and trigger that reversal. Both work together. Auto-reverse without photo eyes won't help if the sensors don't spot the problem first.
How often should I test my garage door's safety features? Test your auto-reverse monthly by closing the door and blocking it with a small object. Check your photo eyes for dust or misalignment every few weeks. If either fails, call a professional immediately. Safety isn't something to delay.
Can I install new safety features on an older garage door? Yes. Newer photo eye kits, auto-reverse systems, and safety sensors can be added to many existing doors. Costs range from $200 to $600 depending on what needs upgrading. A professional inspection tells you what's feasible for your door.
What happens if someone is trapped under a closing garage door? Modern doors with working auto-reverse will lift back up within one second. Older doors without this feature can cause serious injury. This is why testing your system matters. Trapped fingers, arms, or worse can happen in an instant.
Are smart garage door systems safer than standard openers? Smart systems add convenience and monitoring, but they don't replace basic safety features. A smart door still needs working photo eyes and auto-reverse. For details on how smart technology fits into your safety picture, explore our guide to smart garage door technology in Andover.