24/7 Emergency · Alameda County

Garage Door Spring Repair & Replacement in Sunol, CA

A snapped torsion spring turns a door into dead weight that no opener will lift, and on a wide barn or shop door that weight is well beyond what a house garage door carries. It is the repair we most firmly advise against handling yourself — a wound spring holds enough stored energy to injure badly.

Response under 60 minutes East Bay crews via Niles Canyon Road

Call (925) 459-4427 About spring repair

Why Sunol homes need spring repair done right

Spring life is counted in cycles, and out here the count misleads people. A barn door opened twice a day can still be running hardware decades old and far past its rating, while a shop door on a working property gets through a standard spring quickly. Grit contributes too: dust in bearings and drums adds drag, the spring fights that resistance on every cycle, and the door's balance drifts away from where it was set. On wide equipment openings the spring package has to be matched to the actual door — a timber barn door weighs more than its span suggests, and a guess leaves it either creeping down on its own or straining the opener.

A garage door spring counterbalances a door that can weigh 150–400 lbs, and it stores enormous energy under tension. When it snaps you'll hear a loud bang and the door becomes a dead weight the opener can't lift. Because winding a spring is genuinely dangerous, this is the repair to leave to a certified technician — we carry a full range of torsion and extension springs and replace them safely, in pairs, the same day.

Garage Door Spring Repair & Replacement — a technician performing spring repair on a residential garage door

Signs you need spring repair

A loud bang from the garage
A ~2-inch gap in a coil spring above the door
Door won't lift, or feels impossibly heavy by hand
Opener strains, hums, then gives up
Door drops fast or crooked when lowering

What we service in Sunol

Torsion springs (standard & high-cycle)

Extension springs & safety cables

Winding bars and cones

Center bearing plate & end bearings

Shaft and cable drums

What to expect on your Sunol visit

1
Identify the spring system
Torsion (shaft above the door) and extension (along the tracks) springs are sized to your door's exact weight, height and cycle needs — we measure wire size, length and inside diameter to match.
2
Replace in pairs
When one spring breaks its twin is near the end of the same cycle life. Replacing both prevents a second failure and repeat call-out, and keeps the door balanced.
3
Upgrade option
We offer high-cycle springs rated for roughly double the lifespan — worth it on heavy custom doors or homes that cycle the door many times a day.
4
Balance & safety test
We wind to the correct tension, confirm the door holds at mid-travel, re-check the safety cables, and verify smooth, quiet operation.

Spring Repair in Sunol — FAQs

How many years should a spring last?

Rating is in cycles, not years — around 10,000 for a standard spring, which is roughly seven years at four openings a day and much less on a working shop door. High-cycle springs roughly double that and are usually the right call on any door that gets used for work rather than parking.

Is a barn door spring different from a house one?

Same principle, different sizing. Wide timber doors weigh considerably more than builder steel, so wire size, drum and shaft are chosen from the measured weight and span. We calculate it rather than matching whatever was on there before — on hand-framed openings, what was on there before was often a guess too.

Why shouldn't I replace a garage door spring myself?

A wound torsion spring stores enough energy to cause serious injury if a winding bar slips. Correct wire size, tension and safety-cable setup all matter. This is the repair where a professional is genuinely safer — and usually faster.

Should I replace both springs if only one broke?

Yes, we recommend it. Both springs share the same cycle life, so a broken one means the other is close behind. Replacing the pair keeps the door balanced and avoids a second failure within months.

How long do garage door springs last?

A standard spring is rated for about 10,000 cycles — roughly 7–12 years for an average household, but far less if the door opens many times a day. High-cycle springs roughly double that.

Can you come out today for a broken spring?

Yes — a broken spring is our most common same-day and emergency call. We stock a wide range of spring sizes on the truck so we can measure and replace on the first visit.

“Our barn door had eaten two sets of rollers in four years and everybody kept selling us more rollers. This crew cleaned years of dust out of the bottom track, switched us off the grease we had been using, and explained why. Three seasons on and it still runs quiet.”

K. Sandovaloff Andrade Road, Sunol

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Spring Repair in Sunol — book today

Certified technicians, East Bay crews via Niles Canyon Road, response under 60 minutes. Free estimate, no premium for nights or weekends.

(925) 459-4427 Request an estimate