Vinyl siding looks similar to horizontal wood siding but doesn't require as much maintenance. These systems can be applied right over old siding but are easier to apply over solid sheathing. Vinyl siding doesn't rust or corrode, but vinyl, which is actually polyvinyl chloride (PVC), does become more brittle as it gets older.
Repairing vinyl siding can be tricky. It may require cutting out small sections or replacing whole panels. A professional will be best to tell you how to repair your siding and to get the job done for you. Prepare a list of questions to help you find a professional who can repair your vinyl siding.
-- Tips courtesy of HomeAdvisor.com