One of the easiest ways to avoid getting ripped off by a roofer is to do some exploration of the company you’re considering. Although some countries bear roofing companies to be ensured and certified, not all do. Always ask for evidence of license and liability insurance, and avoid any roofer who doesn’t have these.
Source: https://thegloblenews.com/2022/04/18/how-do-you-not-get-ripped-off-by-a-roofer/