If you've ever heard a loud bang from your garage — almost like a firecracker or a gunshot — and then found the door refusing to open, there's a good chance a spring just broke. It's the single most common garage door failure we get called for, and on a cold morning it can happen to a door that worked perfectly the day before.
The good news: it's a routine, same-day repair for a trained tech. The important news: it's also the one part of your door you should never try to fix yourself. Here's how to tell what happened, what to do next, and why DIY is a genuinely bad idea here.
How to tell a spring is the problem
Your springs sit horizontally above the door (torsion) or along the upper tracks on each side (extension). They counterbalance the door's weight so your opener — or your arm — only has to do a little work. When one breaks, that balance is gone. Look for:
- A visible gap in the coiled spring above the door, like a broken rubber band.
- The door won't lift, or only rises a few inches before stopping.
- The opener motor runs and strains but the door barely moves.
- The door slams down hard or feels impossibly heavy by hand.
- A loud bang earlier that you couldn't place.
Don't force it open
With a broken spring the full weight of the door — often 150 pounds or more — is no longer supported. Yanking it up by hand or hammering the opener button can send it crashing down on a car, a pet, or a person.
What to do right now
1. Leave the door where it is
If it's closed, leave it closed. If it's stuck partway, keep everyone and everything clear of the opening. A half-open door on a broken spring is the most dangerous state it can be in.
2. Disconnect the opener — carefully
Most openers have a red emergency-release cord. Only pull it if the door is fully closed; pulling it on a raised door removes the only thing holding it up. When in doubt, don't touch it and just call us.
3. Don't park under it
If your car is still inside and the door is down, it's fine to wait. If the door is up, don't drive under it to get the car out — that's exactly when doors fall.
Why this is not a DIY job
Garage door springs are wound under enormous tension — that's the whole point of them. Releasing or installing one without the correct winding bars and technique is how people lose fingers and break bones. Beyond the danger, there's the matter of getting it right:
- Springs come in specific wire gauges, lengths and wind directions matched to your door's exact weight. The wrong spring wears out fast or leaves the door unbalanced.
- Springs are almost always installed in pairs. If one broke, the other is near the end of its life — replacing only one usually means a second service call within months.
- A proper repair includes re-balancing the door and tuning the opener force, not just swapping the part.
Spring snapped today? We can fix it today.
Same-day torsion and extension spring replacement across Philadelphia, the PA suburbs and South Jersey — with the right gauge and a warranty.
Call (215) 383-0399What a proper repair looks like
When we arrive, we weigh and measure the door, match the correct spring, replace them in pairs, then cycle and balance the door so it opens smoothly and the opener isn't straining. Most spring jobs are done in under an hour, and we'll add safety cables to extension-spring doors so a future break can't whip loose. You get a clear price before we start — no call-out fee, no surprises.
How to make springs last longer
Springs are rated in cycles (one open + close = one cycle), and most stock springs are good for around 10,000 — roughly 7 years of normal use. You can stretch that with a little upkeep: keep the door balanced, lubricate the hardware twice a year, and get an annual tune-up so a tech can catch a tired spring before it strands you on a January morning.
