Most Carolina homes have plastic with rubber seal pipe boots. They only last between 7 - 12 years. Tier are several different ways of fixing them it all depends on the style of your roof and the way your pipe boot aged. If your pipe boot base is good we can also install just a new rubber seal to extend life of a pipe boot. If your base is falling apart then i have no choice but to install new pipe boot that means many times I end up replacing shingles around pipe boot. Old shingles when they age they are not flexible they brake or make cracks. Call Exterior Contractor for Free estimate and home inspection.