A limited warranty covering workmanship is for 2 years from the completion date of the job for both interior and exterior painting. A professional painter should be willing to repair peeling, blistering or chipping paint resulting from defective workmanship at little or no cost to the homeowner. The paint itself falls under the manufacturer's warranty, between 15-25 years and some even offer a lifetime warranty. If you are told the paint itself has a warranty, always remember that workmanship warranties are separate. Be sure to ask for it in writing and always read the limitations.