Garage Door Spring Repair
Torsion and extension springs sized to the weight of the door and wound to the correct turns, with coated hardware for salt air.
A garage door spring is a stored-energy lifting device, and when it breaks the door becomes dead weight that no opener should be asked to lift. A torsion spring is a coil on a shaft above the opening that winds tighter as the door comes down; an extension spring stretches along the side of each horizontal track. Both are rated in cycles, and DASMA's spring guidance says a spring's cycle life can end well before the door's does, particularly if the steel is nicked, dropped or left to rust.
We size a replacement from the door itself: its weight, the spring's wire size, inside diameter and length, and the cycle rating that suits how often the door is used. Where a door has two springs we replace both, which DASMA advises, because the survivor has the same wear and the same rust. We wind to the correct turns, then confirm that the door holds itself about halfway up before the opener is reconnected.
Warning Signs of a Tired or Broken Spring
- A gunshot-like bang inside the garage, and the door will not rise afterward
- A clear split in the coil on the shaft above the door
- The opener strains and stops a few inches off the floor
- The door slams down faster than it used to
- Springs stretched, dull or flaking with rust
- A door that was easy to lift now takes two hands
🌊 The Hurricane Coast Factor
Spring steel rusts, and a pitted spring breaks early. DASMA's technical sheet on spring cycle life says rust reduces the effective wire area and that corrosion pits are where fatigue cracks begin, which is why springs are meant to be kept dry before installation. A garage in Miami-Dade or Broward spends the wet season, which the National Weather Service dates from May 15 to October 15, at high humidity with no way to dry out. We fit coated springs and look first for rust at the winding cones and the coil ends.
How We Handle It
Secure the door
Door clamped closed, opener disconnected, existing springs read for size, turns and any rust pitting.
Measure and quote
Door weight and spring specifications set the replacement, and you approve one exact price on site.
Replace and wind
New springs installed, winding bars used, both springs changed together on a two-spring door.
Balance proof
Door lifted by hand and held half open before the opener is reconnected and cycled.
Starting Prices: Garage Door Spring Repair
| Garage Door Spring Replacement | from $150 per spring |
|---|---|
| Diagnostic Service Call | $0 with a completed repair |
Springs are priced one by one, so a two-spring door counts as two, and the total is agreed before the old set comes off.
Questions about a figure? Reach the Miami office, compare every line on the services page or look through the photo gallery.