A spring lets go and the door will not lift
Why it happens
The springs do the lifting, and they are a wearing part. Torsion springs sit on a shaft above the door and wind up to lift it; extension springs run along the tracks either side and stretch as the door closes. Thom's published figure is that most torsion springs are rated to around 10,000 open-and-close cycles, roughly seven to ten years in an average home.
Why it matters
This is the one job on the door that stays with a technician regardless of skill. Thom publishes the reason without dressing it up: garage door springs are under high tension and can cause serious injury if they let go while you are working on them. B&D Australia gives the same instruction for its own doors, telling owners never to attempt to adjust or replace garage door springs themselves. In a suburb where technicians and trades workers were the largest occupation group at 19.8 per cent against 15.2 per cent for the LGA in 2021, that line is worth stating rather than assuming.
Response
Book the spring rather than attempt it. Thom carries common torsion and extension springs on the van, so ask what is on board when you call.




