Garage Door Spring Repair
Torsion and extension spring replacement — across Wellesley, Newton, Natick, Needham, Framingham, Weston, Brookline.
When a spring breaks, the door loses the counterbalance that carries its weight, and the right move is to leave the door closed and call a technician. A residential door weighs well over a hundred pounds, and the spring system that carries that weight stays under serious tension even when the door looks fine, which is why DASMA says spring work belongs to trained professionals.
We size replacement springs by measuring the door, not by guessing from a chart: its weight, the wire size, the coil length and inside diameter, and the number of turns the door maker specifies for that spring. On a door with two springs we replace both, which is DASMA's advice too, because they have lived through the same winters and the same cycles. On extension-spring doors we also check the safety cables, since a cable through the spring keeps a broken one contained. Last, we confirm the door holds itself at half-open.
Clues That a Spring Has Failed
- A bang like a gunshot from the garage
- A clean break or a gap showing in the coil on the bar
- The door lifts a few inches, then settles back down
- The opener labors, hums or gives up after a foot or two
- The door is suddenly too heavy to lift by hand
- Rust or pitting along the coil
❄️ The MetroWest Winter Factor
Cold, damp winters shorten spring life in a specific way. DASMA's data sheet on spring life ties rust to thinner wire and to corrosion pits, which is where fatigue cracks begin. A garage that holds salt slush off the cars and refreezes it all winter gives that process months to work, and the Natick station normals count 143 days with a minimum at or below 32°F, so a pitted coil is tested by hard cold again and again. We fit coated springs and lubricate them as the door maker directs.
How We Handle It
Measure the door
Door weight, spring wire size, length and inside diameter are measured so the new spring fits this door and not a catalog guess.
Exact quote first
You approve one exact quote on site before we unwind anything.
Replace and wind
We fit the new spring set with winding bars and the turn count the manufacturer specifies for it.
Balance check
The door should hold itself at half-open and travel level before we reconnect the opener and cycle it.
Spring replacement pricing
Spring work is priced per spring, so a two-spring door is quoted for both. The technician confirms the size and the total before winding anything.
- Garage Door Spring Replacement
- from $150 per spring
- Diagnostic Service Call
- $0 with a completed repair
