Garage Door Spring Repair & Replacement in Sunnyvale, CA
A snapped torsion spring leaves the door a dead weight of 150 to 400 pounds — more on a wide remodelled opening — that no opener will lift. It is the repair we most firmly advise leaving to a technician; a wound spring holds enough energy to injure badly.
Why Sunnyvale homes need spring repair done right
In Sunnyvale the recurring cause is not age, it is mismatch. Springs reused across a remodel are working outside their range from the day the new door went in, and they fail early because of it. We weigh the door and calculate from that rather than replacing like for like — which on a remodelled house frequently means the new springs are not the same specification as the old ones, and that is the point.
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.
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 Sunnyvale
What to expect on your Sunnyvale 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 Sunnyvale — FAQs
Why would new springs be a different size from the old ones?
Do both need replacing?
Why shouldn't I replace a garage door spring myself?
Should I replace both springs if only one broke?
How long do garage door springs last?
Can you come out today for a broken spring?
Spring Repair in nearby cities
Spring Repair in Sunnyvale — book today
Certified technicians, South Bay crews off US-101, response under 60 minutes. Free estimate, no premium for nights or weekends.