If your plumbing has never been inspected or you do not know when the last inspection took place, it is a good idea to have it done as soon as possible. Depending on your particular circumstances and the overall state of your plumbing system, a professional plumber can make recommendations about how often the process should be repeated.
If you live on a property with a lot of trees, for instance, you may need to have your plumbing lines inspected more often because of the chance that roots could begin to infiltrate the system. However, if there are no extenuating circumstances and your plumbing is otherwise in good shape, you could probably wait longer between inspections. In general, though, a plumbing system should be inspected annually.
Posted in: Plumbing