Usually this is due to.
Roof gutter leak repair.
Blockage in the gutter stopping the water running down into the drain.
Gutter leak at joint.
Failure of the sealant on a gutter joint between two sections.
There are 3 main reasons for a leaking gutter.
Allow 24 48 hours dry time yes avoid any rainy days in the forecast and you should be good to go.
Common leak points on downspouts downspout connections downspout defects clogging overflowing holes corrosion leaks that cause wet basements or crawl areas downspouts split by leaves swelling wet debris or frost downspout leaks at connections elbows downspout extensions that lack adequate slope downspouts emptying below decks porches.
Tighten up loose gutters.
This could be broke slate or tile.
Use a commercial grade gutter sealant and simply re apply where needed in a thorough manner.
Over time rain gutters often start to pull away from the roof allowing water to drip over the gutter sides or between the gutters and the walls.
Finally thoroughly clean the area of dirt debris shingle granules etc so that the new repair will hold properly.
A hole in the gutter caused be debris falling into the gutter from the roof.
Gutter repair cleaning.
Run water over the low side of the penetration for several minutes while the helper watches for any water droplets.
Use enough water to mimic heavy rains.