The answer to 'how to repair roof replacement' is that roof replacement is a major home improvement project that should be done by a professional roofing contractor. While some minor roof repairs can be done DIY, a full roof replacement requires expertise and specialized tools to ensure it is done properly and safely.
A professional roofer will be able to assess the condition of your roof, determine the best roofing material for your home, and handle the entire replacement process from start to finish. They will also dispose of the old roofing materials and clean up the work area when the job is complete.