Springs · Hamilton
Torsion Spring Replacement
Looking up at the coil above the door, you can see a clean split with a gap of several centimetres between the two halves. The rest of the spring looks fine, but the door has become almost impossible to move by hand.
Torsion Spring Replacement
In plain words
Every spring is built for a number of open-close cycles, and replacement is a natural moment to choose that number deliberately. A standard residential spring is commonly rated around ten thousand cycles; a family that opens the door six times a day uses those up in a few years. Higher-cycle springs use heavier wire and a longer coil to produce the same force with less stress on the steel, so they last proportionally longer. The technician can explain the trade-off and fit whichever option suits the household's use of the door, then wind and balance it accordingly.
How the visit goesYou heard a sharp bang from the garage, and now the opener hums for a second and gives up. The door lifts a few centimetres at most, then settles back down as if something very heavy is holding it in place.
Hamilton
How the visit goes
Understanding how the door is used
How the household uses the door shapes the spring that suits it. The technician asks how many times a day it typically opens, whether it is the main entrance to the home, and when springs were last replaced, if ever. A door cycled eight times a day accumulates use far sooner than a weekend garage. Age of the door and any previous partial repairs are also relevant, especially a single spring changed on a paired system. This conversation lets the customer choose between a standard-cycle spring and a higher-cycle option with a clear picture of what each means for them.
Balancing the door by hand
Once the clamps are off, the technician lifts the door by hand to about waist height and lets go. A balanced door stays where it is, or drifts only slightly. If it rises on its own, the spring has a little too much tension and is eased a quarter turn; if it drops, a quarter turn is added. The door is then run through its full travel, watching that both sides move together and the sections stay flat in the tracks. This is repeated until the door feels light and stops cleanly at several heights, which is the standard the whole job is measured against.
Through the seasons
The new spring has been set for the door as it is today, and the seasons are part of its life. Cold mornings make steel and grease a little stiffer, so the door may feel marginally slower in deep winter while still balanced; lubrication in autumn helps. Slush and road salt carried in on tires settle on the bottom brackets and cable ends, so a rinse and a light spray in spring slow corrosion where the cables anchor. Summer humidity is easier on hardware but rewards a dry, clean track. Small seasonal habits like these let the spring reach its full rated cycle count.
Torsion Spring Replacement
In the van
- Torsion shaft and coupler
- Socket set and wrenches
- Locking pliers for the track
- Centre bearing bracket and bearing
- Stationary cone bolts and nuts
What affects the quote
Same fees day, night or weekend
1Drum type and lift configuration
Standard-lift drums are the common case. High-lift, vertical-lift or low-headroom arrangements use different drums, cable lengths and turn counts, which changes the parts and the time involved.
2Converting from extension springs
Moving a door from extension springs to a torsion system adds a shaft, bearings, drums and brackets, and removes the old pulleys, which is a broader job than replacing an existing torsion spring.
3Door size and weight
A double-width door, a solid wood door or a thick insulated door weighs far more than a single-width steel panel, calling for heavier wire, longer coils or more springs to balance it.
Torsion Spring Replacement: questions
Why is my door sitting crooked since the spring broke?
On a two-spring door, one intact spring keeps pulling on its side while the broken side goes slack, so the door lifts unevenly and a cable can jump its drum. The technician levels the door, reseats the cables in their drum grooves and evens the tension after the new spring is fitted. Rollers and track are checked for damage from the crooked travel so the door runs square again.
What happens if the header wood or centre bracket is damaged?
The centre bracket anchors the spring's reaction force to the framing above the door, so it has to be solid. If the header has split or softened, or the lag bolts have pulled, the technician can refasten into sound wood, add a reinforcing plate or replace the bracket before the new spring is wound. Dealing with this first keeps the shaft level and the spring pulling straight, which protects the bearings and the door.
What other parts are often replaced with the spring?
The shaft is free during a spring change, which makes it the natural time to renew the centre bearing and end bearings if they grind or wobble. Lift cables that show fraying or rust at the bottom brackets are replaced so the new spring pulls on sound steel, and cracked or worn drums are swapped. On older doors, a corroded centre bracket or loose lag bolts may also be addressed. Each item is shown and explained before it is added.
Springs & Hardware
Torsion Spring Replacement near you
In Hamilton we work on garage doors of every age and size: single and double residential doors, insulated and uninsulated, wood and steel, plus commercial rolling and sectional doors. The service pages explain the repairs, replacements and installations that apply to each.