It surprises people that a door installed with a five-year-old house can break a spring. It should not. A spring is rated by cycles, and a household using the garage as its main entry can complete more than two thousand cycles a year. Five years of that is a substantial working life.
There is a second Coomera-specific factor worth naming: a spring that was not correctly sized at installation shortens its own life considerably. If a door has always felt heavy, or has always closed faster than it should, that is worth mentioning, because it changes what a provider checks when the replacement is specified.