What age can a Roof Plumber migrate to Australia?

If you are a Roof Plumber hoping to migrate to Australia, you need to be between 18 and 45 years old. However at age 18, Roof Plumbers will not have yet achieved the necessary qualifications and experience to prove their competence. Roof Plumbers between the ages of 25-32 years old generate the maximum points for age towards their visa application.