Why Your Garage Door Won't Close All the Way (And How to Fix It)

Your garage door stops a few inches from the ground and won't budge. Maybe it reverses halfway down. Or it closes slowly, then gives up entirely. A garage door won't close all the way for one of several predictable reasons—and most of them you can diagnose yourself in 10 minutes.

This post walks you through the seven most common causes, how to troubleshoot each one, and when it's time to call a professional. Whether you're in Kennewick, Pasco, Richland, or anywhere in the Tri-Cities, you'll find practical, step-by-step guidance here. We'll also cover the mistakes most homeowners make (and what to avoid), plus answers to the questions we hear most often.

The Seven Most Common Reasons Your Garage Door Won't Close All the Way

1. Misaligned or Blocked Safety Sensors

Your garage door opener has two sensors mounted on the sides of the door frame, about 4–6 inches off the ground. These infrared sensors create an invisible beam across the door opening. If the beam is blocked or broken, the door won't close—it's a safety feature that prevents the door from crushing anything (or anyone) in its path.

How to check:

• Look at both sensors. They're small boxes, usually black or gray, with a light on the front.
• Make sure nothing is blocking the beam: leaves, dirt, a bike, a parked car.
• If the sensors look clean, check if they're aligned. The lights on both sensors should be steady and bright (not flickering or dim).
• Gently wipe the sensor lenses with a soft, dry cloth. Dust and cobwebs are common culprits.

If one sensor's light is off or dimmer than the other, the alignment is off. You can often adjust it by loosening the bracket slightly and angling the sensor back toward its partner. Tighten the bracket once they're aligned.

Cost to fix yourself: $0 (cleaning and realignment).

2. The Closing Limit Needs Adjustment

Your opener has two limit switches: one tells the door when to stop closing, the other when to stop opening. If the closing limit is set too high, the door stops before it reaches the ground.

This is one of the easiest fixes—and one homeowners often overlook. On most openers (Chamberlain, LiftMaster, Genie, Wayne Dalton), you'll find two adjustment screws on the motor head labeled "Up" and "Down" or "Open" and "Close." The down/close screw controls where the door stops when closing.

How to adjust:

• Unplug the opener for safety.
• Locate the limit screws (check your opener's manual if you're unsure).
• Plug it back in and test the door closing.
• If it still doesn't close all the way, turn the "Down/Close" screw a quarter-turn clockwise.
• Test again. Repeat in small increments until the door closes fully and stops.
• Do NOT over-adjust—you want the door to seal against the floor, not crush into it.

Cost to fix yourself: $0.

Pro Tip: Write down the original screw positions (count the turns) before you adjust. If something goes wrong, you can always return to the starting point.

3. Broken or Damaged Door Springs

Garage door springs carry about 90% of the door's weight. When a spring breaks, the opener can't lift or lower the door properly. You might hear a loud bang when a spring snaps—it's unmistakable.

If a spring is broken, your garage door won't close all the way because the opener motor can't overcome the weight of the unsupported door. The door may also move unevenly or jerkily.

Signs of a broken spring:

• A loud snapping or popping noise.
• The door is noticeably heavier when you try to open it manually.
• The door sags on one side.
• The opener makes a grinding noise but the door barely moves.

Do not attempt to replace a garage door spring yourself. Springs are under extreme tension (up to 200+ pounds of force) and can cause serious injury. This is a job for a licensed professional. In Washington State, many jurisdictions require a licensed contractor for spring replacement—check with your local building department.

Cost to fix professionally: $150–$400 per spring, depending on the door size and spring type.

4. Track Misalignment or Obstruction

Garage door tracks guide the rollers as the door moves up and down. If a track is bent, misaligned, or blocked, the door can't close smoothly—it may stop partway down or bind.

How to inspect the tracks:

• Look at both vertical tracks on either side of the door.
• Check for dents, bends, or debris (leaves, dirt, snow—common in Tri-Cities winters).
• Shine a flashlight inside the track to spot obstructions.
• Gently push the track with your hand. It should not move or flex.

If you find debris, remove it carefully. For minor dents that don't interfere with the rollers, you can usually leave them. If a track is seriously bent or misaligned, a professional should straighten or replace it—improper track work can cause the door to derail.

Cost to fix yourself: $0 (cleaning). Cost to fix professionally: $200–$500 (track replacement or straightening).

5. Worn or Damaged Rollers

Rollers are small wheels that ride inside the tracks. Over time, they wear out, flatten, or crack. When rollers are damaged, the door doesn't glide smoothly and may stop before closing fully.

You can often see worn rollers by looking at the door from the side. They should be round and smooth. If they look flat, cracked, or misshapen, they need replacing.

Cost to fix professionally: $150–$300 (typically 4–8 rollers per door).

6. Broken or Frayed Lift Cables

Two cables run on either side of the door, attached to the bottom corners. They help the springs support and lower the door. If a cable snaps or frays, the door becomes unbalanced and won't close evenly.

Signs of cable failure:

• The door tilts to one side as it closes.
• A cable is visibly loose, frayed, or hanging.
• The door is stuck or won't move at all.

Like springs, cables are under high tension. Do not attempt to replace them yourself.

Cost to fix professionally: $200–$400 (both cables).

7. Opener Motor Issues

If you've ruled out sensors, limits, springs, and tracks, the problem may be the opener motor itself. The motor may be weak, the gearbox may be worn, or the circuit board may be failing.

Signs of opener failure:

• The motor hums but the door doesn't move.
• The door closes partway, then reverses for no reason.
• The opener is more than 15 years old.

Cost to fix professionally: $300–$800 (repair or replacement).

Common Mistakes Homeowners Make (And What to Avoid)

Mistake #1: Ignoring the sensors. Many people assume a garage door won't close all the way because of a mechanical problem—a spring or cable. But 60% of the time, it's just a blocked or misaligned sensor. Check the sensors first. It takes two minutes and saves you a service call.

Mistake #2: Over-adjusting the limit screws. If you turn the "Close" screw too far, the door will crush into the frame or floor, damaging the door and opener. Make small adjustments (quarter-turns) and test after each one.

Mistake #3: Trying to replace springs or cables yourself. Springs store enough energy to cause serious injury—broken bones, lacerations, even death. The same goes for cables under load. This is one area where DIY is genuinely dangerous. Hire a professional.

Mistake #4: Leaving a misaligned door unfixed. A door that won't close all the way leaves your garage (and home) vulnerable. It also puts extra strain on the opener and other components, leading to more expensive repairs down the road.

Mistake #5: Not checking for obstructions first. Before you assume something is broken, make sure nothing is blocking the sensors, tracks, or door path. A single leaf or stick can stop the door cold.

When to Call a Professional

If you've cleaned the sensors, checked the tracks, adjusted the limit screws, and the door still won't close all the way, it's time to call a garage door professional.

You should definitely call a pro if:

• You suspect a broken spring or cable.
• The door is visibly bent or damaged.
• The tracks are severely misaligned.
• The opener motor isn't responding.
• You're uncomfortable doing any of the troubleshooting steps above.

Here in the Tri-Cities, garage door problems are especially common in winter—cold weather can warp frames, frost can block sensors, and ice can jam tracks. A licensed technician can diagnose the issue quickly and safely, often in one visit.

Badger Garage Door Service serves Kennewick, Pasco, Richland, and surrounding areas. We offer same-day and emergency garage door repair service, and we can handle everything from sensor realignment to spring replacement and opener repair. Call (509) 901-1193 for a free diagnosis.

Common Questions About Garage Doors That Won't Close All the Way

Q: Can cold weather cause my garage door to stop closing? A: Yes. In the Tri-Cities, winter temperatures can cause metal frames to contract, throwing the door out of alignment. Cold also affects lubricants—they thicken and increase friction. If your door won't close in winter but works fine in summer, temperature-related contraction is likely the culprit. Keep tracks and rollers lubricated with a silicone-based spray (not WD-40, which attracts dirt).

Q: My garage door closes but leaves a gap at the bottom. Is that normal? A: A small gap (less than ½ inch) is normal and actually desirable—it allows for seasonal expansion. If the gap is larger, the closing limit needs adjustment, or the door has warped. If the gap is on one side only, a cable or spring may be failing.

Q: How often should I have my garage door serviced? A: Most manufacturers recommend annual garage door maintenance. A professional inspection catches worn springs, frayed cables, and misaligned tracks before they fail. In the Tri-Cities, where weather swings from hot summers to cold winters, annual service is especially valuable.

Q: Is it safe to use my garage door if it won't close all the way? A: Not really. An unclosed door leaves your home vulnerable to break-ins and pests. It also means your opener is working harder than it should, which shortens its lifespan. Get it fixed as soon as possible.

Q: What if my garage door reverses while closing? A: This is usually a sensor issue or an obstruction. The door's safety system is designed to reverse if it detects anything in its path. Check the sensors and tracks first. If they're clear and the door still reverses, the opener's force-sensing circuit may need adjustment—call a professional.

Key Takeaways

• Start with the sensors. A blocked or misaligned safety beam stops 60% of garage doors that won't close all the way. Clean and realign them first—it takes minutes.
• Check the closing limit. If sensors are fine, adjust the "Down/Close" screw on your opener in small quarter-turn increments until the door closes fully.
• Never DIY springs or cables. These components are under extreme tension and can cause serious injury. Call a licensed professional.
• Get professional help if basic troubleshooting doesn't work. A bent track, worn rollers, broken spring, or failing opener all require professional repair.

Have questions or ready to schedule a service call? Contact Badger Garage Door Service at (509) 901-1193 or visit badgergaragedoor.com. We serve the Tri-Cities area and offer same-day emergency service.

Additional Resources

For more information on garage door safety standards and best practices, check out:

• DASMA (Door and Access Systems Manufacturers Association) — manufacturer specifications and safety guidelines
• International Door Association — industry certifications and standards
• Washington Department of Labor & Industries — contractor licensing and safety regulations
• UL 325 Safety Standard — automatic garage door opener safety requirements