Broken Garage Door Spring Repair Around Boise
A loud bang from the garage, then a door that will not open, or an opener that strains and stops a few inches up: those are the classic signs of a broken spring. It is the most common garage door breakdown, and the one that should never be a do-it-yourself job.
The short version
Springs do the heavy lifting; the opener only guides the door. When a spring breaks, the door suddenly weighs its full weight. Stop using the opener, keep people clear, and get the spring replaced with one sized for the door's weight.
- Signs: loud bang, gap in the spring, door very heavy, opener strains
- Ask about: spring type, cycle rating, replacing both, cables
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- Common scope
- Remove broken spring, install spring sized to the door weight, check cables, drums and bearings, balance and test the door
- Season to plan around
- Breaks often show up on cold mornings
- House watch-out
- Running the opener on a broken spring can damage it
- Safety
- Springs hold dangerous stored energy
Two kinds of springs
Torsion springs mount on a steel shaft above the door opening. They twist as the door closes and unwind to lift it, turning cable drums at each end. Most newer Treasure Valley homes have torsion systems. Extension springs run along the horizontal tracks on each side and stretch as the door closes. They are common on older and lighter doors, and should have safety cables running through them so a broken spring cannot whip across the garage. The springs guide covers the differences in detail.
How to tell a spring broke
- A loud bang from the garage, sometimes mistaken for something falling.
- A visible gap of an inch or two in a torsion spring coil.
- The door lifts a few inches and stops, or the opener runs but the door barely moves.
- The door is extremely heavy if lifted by hand.
- Cables hanging loose at the bottom corners.
Why it is not a DIY job
Torsion springs are wound under high tension, and winding or unwinding them takes proper winding bars and know-how. The U.S. Consumer Product Safety Commission warns about serious injuries from garage doors and their hardware (U.S. Consumer Product Safety Commission, garage doors and openers). Extension springs can also release violently if they or their attachments fail. Keep people and pets away from a door with a broken spring, and do not keep pressing the opener button, which can strip gears or bend the door.
Cold mornings and broken springs
Springs are rated for a certain number of open-and-close cycles. As they near the end of that life, the steel fatigues. Cold makes steel less forgiving, which is one reason broken springs seem to show up on chilly mornings. The National Weather Service Boise office (National Weather Service Boise) and NOAA climate normals (NOAA NCEI U.S. Climate Normals) show the valley's winters regularly drop well below freezing at night.
What a good spring replacement includes
- The right size: spring wire size, length and inside diameter matched to the door's weight and height.
- Both springs on two-spring doors: the other spring is the same age and often close behind.
- Cycle rating: higher-cycle springs last longer for busy households. Ask what rating is quoted.
- Cables, drums and bearings checked: frayed cables are often replaced at the same time.
- Balance and test: the door should stay put halfway up, and the opener's auto-reverse should be tested.
Sizing up the job: see what shapes spring work on the estimate-factors page. It lists what moves the scope, never a price.
Further reading
Sources for this page: U.S. Consumer Product Safety Commission, garage doors and openers; National Weather Service Boise; NOAA NCEI U.S. Climate Normals.
Broken Garage Door Spring Repair: what people ask
Can I open my garage door with a broken spring?
It is not recommended. The door is very heavy without spring help and can fall. If a car is stuck, it is safer to wait for help.
How long do garage door springs last?
It depends on the cycle rating and how often the door is used. A household that opens the door many times a day wears springs out faster.
Should both springs be replaced?
On two-spring doors, replacing both is common because they are the same age and wear together.
What are high-cycle springs?
Springs built to handle more open-and-close cycles before fatigue. They suit busy households.
Why did my spring break in winter?
Fatigued steel near the end of its cycle life is more likely to fail in the cold.
Do I need new cables too?
Not always, but cables are checked during spring work and replaced if frayed or kinked.
Often planned alongside
Off-Track Door & Cable Repair
Doors that have come out of their tracks, hang crooked or have a snapped or loose lift cable, put back safely and checked for bent parts.
Garage Door Repair
Noisy, slow, sagging or stuck doors: rollers, hinges, bent sections, seals and balance, fixed before small problems wear out the opener.
Garage Door Opener Repair & Installation
Repairs and replacements for openers that hum, reverse, run slowly or quit, with chain, belt and wall-mount options and safety sensor checks.
Planning springs work?
Send the details and expect a call back to talk the project through.