Was wondering if I can get any suggestions on prevention of a recurring bumblebee nest? I have a concrete stoop underneath my deck (stoop was originally built with home and then a deck was built on top of it). The stoop is roughly 5 feet wide by 4 feet and 1.5-2 feet tall. I have lived in the home for 5 years. The first summer there was a bumblebee nest under the stoop. The next summer, nothing. The following summer, back again. I would not mind them if they were not right outside the patio door with my child running in and out. I have had a beekeeper out a few times and due to access constraints, he was not able to do much. I am tearing off the deck boards to replace and want to address this the best I can to prevent any further nests. Any suggestions besides tearing up the stoop (which is timely and costly and a last resort). Dusts/filler/anything? It appears the bees were making holes in the dirt to get underneath. Those were filled by the beekeeper but new holes were made. I am 100% sure they were bumblebees and not carpenter bees. Any help would be greatly appreciated!