The answer to 'why is my gutters leaking' is that there are several common causes for leaky gutters, including clogged debris, damaged gutter joints, improper gutter installation, and general wear and tear over time. Symptoms of leaky gutters include water overflowing the sides, dripping, and stains on the exterior of the home.
In many cases, minor gutter leaks can be fixed with DIY repairs like cleaning out debris, resealing joints, or replacing damaged sections. However, more extensive issues like sagging gutters or major structural problems may require the expertise of a professional roofing contractor to properly diagnose and resolve the problem.