1. A method, comprising: receiving a first set of inputs comprising values associated with wall thickness, the values ascertained through an inspection method for a first zone of a heat exchanger, the first zone comprising a plurality of inspected and uninspected tubes; computing by a processor a respective estimate of a likelihood of a leak occurring at the plurality of inspected and uninspected tubes over a time continuum based on the first set of inputs, an age of the inspected tubes, and an accuracy of the inspection method; and providing by the processor a visualization of an estimate for a total likelihood of a leak for the heat exchanger based on the estimate for the first zone.