The standard mortgage term is 25 years, but you can apply for shorter or longer terms, depending on how that fits in with your budget.
30-year mortgages are available and can mean lowering the monthly cost. However, if you are closer to retirement age, a lender might not be willing to offer a longer-term.
Shorter mortgage terms are also available and can mean repaying a loan faster if the property's value and the rates on offer allow you to do so within your budget.