Have you ever seen someone climb up a downspout in an old movie? Maybe that was possible at one time but not any more. The downspouts of today are made out of a far weaker material. I'm not saying they should be strong enough to support the weight of an adult but it would be nice if they were made a little sturdier. With the rain gutter system, the most common problems I see actually come from the downspouts and not the gutters. The downspouts not the gutters are usually where the clogs form. My most frequent gutter repairs consists of re securing and replacing downspouts.
My second most common gutter repair is fixing broken gutters. Have you ever looked up at a roof line and noticed a bulge in the gutter?(see photo below) This bulge is probably from what I like to call "Winter gutter bowling". Gutter bowling is when a big chunk of ice thaws just enough to start sliding down a roof. This chunk of ice and snow can pick up so much speed that when it smashes into the gutter, it makes a loud boom. It can smash the gutter hangers free and create that bulge that can be seen from the ground. Sometimes a good gutter bowling game can end with the whole gutter crashing to the ground. This situation usually happens with slate roofs that have a steep pitch. If the problem is only a bulge, I can usually repair the gutter by installing new pro-hangers to the inside.
The 3rd most common repair I do is stopping gutter leaks. In many cases a clogged gutter can look just like a gutter with a very bad leak. Only after cleaning the gutters out and then testing them, can I be sure. If the gutter is really leaking, I will then attempt to seal it up. I hate doing this type of repair because of two reasons: The gutters have to be cleaned and completely dried before I can get the sealer to stick. Getting the material to stick can be a frustrating thankless job. The second reason is that the repairs don't last very long maybe a couple of years, if lucky. I have tried many types of sealers to reseal gutters, but I have yet to find a good permanent solution.
Those are the three most common repairs I do. And if you ever see a guy climbing a downspout ask him where he bought it from.