Quick Answer
A door that won't open is usually one of four things: a broken torsion spring, an opener that has lost power or stripped its drive gear, a blocked or misaligned safety sensor, or a door that has locked itself. Pull the red release cord and try lifting by hand — if it is very heavy or won't budge, stop and call us. That is a spring, and springs are the one repair you should not attempt.
Garage Door Won't Open
A garage door that won't open traps your car, leaves you late, and gives you no clue which of half a dozen parts is at fault. Most causes are quick to identify and quick to fix — and a few you can rule out yourself in under a minute, before anyone has to drive out to you.
Why Won't Your Garage Door Open?
Four causes account for most of these calls. A broken torsion spring is the most common and the most obvious once you know the sign: the door is suddenly far too heavy to lift by hand, and you may have heard a bang like a gunshot earlier. An opener fault shows up as a motor that hums without moving the door, or nothing at all. A misaligned safety sensor stops the door for its own reasons — usually the easiest fix on the list. And some doors have a manual lock that has been thrown without anyone meaning to.
The frustrating part is not knowing which one you have. A sensor takes two minutes and costs nothing; a spring is a real repair. Being told “we’ll have to come look at it” when you just want to know whether this is a five-minute problem or a five-hundred-dollar one is its own kind of unhelpful.
You should be able to find out what you are dealing with before you commit to anything. Call or text us a photo and we will tell you what we see — including when it is something you can sort out yourself in two minutes.
What Does Our Garage Door Won't Open Include?
Start with the release cord
Pull the red handle hanging from the opener rail to disconnect the door from the motor, then try lifting by hand. A balanced door lifts with about ten pounds of effort and stays where you leave it. If it is immovably heavy or slams down, that is a spring — stop there and call.
Broken torsion spring
Look at the spring above the door. A broken one has a visible gap of an inch or two. The opener cannot lift a door the springs are no longer counterbalancing, and forcing it will burn out the motor on top of the spring you already need.
Dead or disconnected opener
Check the outlet with something else, check the GFCI, and check whether the wall button works when the remote doesn't — that narrows it to a remote battery. A motor that hums without moving is usually a stripped drive gear, which is a repair rather than a new opener.
Safety sensor misalignment
The two small eyes near the floor must see each other. A bumped bracket, a cobweb or a leaf is enough to break the beam. One steady light and one blinking light is the classic signature. This one is often genuinely free to fix.
Snapped or off-drum cable
A cable that has come off its drum leaves the door crooked and jammed in the tracks. Do not run the opener — it will pull the door further out of square and can bend the track.
Manual lock engaged
Many doors have a slide lock or a T-handle that can be thrown accidentally, and openers on a locked door will strain and reverse. Worth ruling out before anything else, because it costs nothing.
How It Works
Know your price before
we even show up
Other companies give you a price when the tech is standing in your garage. We send your options to your phone in minutes.
Tell us what's happening
No garage door jargon required. Pick from plain-English symptoms — "made a loud bang," "door looks crooked," "remote stopped working." That's it.
Takes about 2 minutes. No phone call, no waiting on hold.
Your quote arrives — before anyone calls you
We send you 3 real pricing options: fix just what's broken, fix it and prevent the next problem, or the full peace-of-mind option. Real numbers. No vague "starting at" prices.
Most customers get their quote in under 5 minutes. Any time of day.
We show up ready. You already know the price.
Pick your option online. Our tech arrives with the right parts. Work is done, price is what we quoted. No surprises, no upsell pressure at the door.
No service call fee if you book. Balance due when it's done.
Free. No obligation. No phone tag.
What Will You Get After Our Garage Door Won't Open?
- We diagnose over the phone first where we can, free
- Springs, cables and common opener parts stocked on the truck
- You get the price before the work starts, not after
- We repair before we recommend replacement
- Written warranty on the parts we fit
Your Garage Door Won't Fix Itself
Don't wait until a small problem becomes a big one. Call Kansas City's most trusted garage door experts today.
FAQ
Frequently Asked Questions About Garage Door Won't Open
The motor is working and the connection to the door is not. Either the trolley has been left disconnected after someone pulled the release cord, or the drive gear inside the opener has stripped — a common wear item on chain-drive units past about ten years. Both are repairs, not replacements.
No. Without the spring counterbalancing it, a residential door weighs between 150 and 400 pounds and there is nothing holding it up if it slips. Lifting it manually is how people get seriously hurt. Leave it closed and call us.
Usually the opener's force or travel limit settings, an obstruction in the track, or a roller binding. The opener is detecting resistance and stopping on purpose, which is the safety system doing its job — so the fix is to find what it is hitting rather than to increase the force.
Often, yes. Sensors, remote batteries, disconnected trolleys and thrown locks are all things we would rather help you solve for free than charge you to come out for. Call or text 816-616-8352 and send a photo if you can.
State Line Door & Lift provides professional garage door won't open services throughout the Kansas City metropolitan area. Whether you're in Missouri or Kansas, our licensed and insured technicians deliver same-day service with transparent pricing. Call 816-616-8352 for a free estimate today.
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