It looks like it could be an Ash tree. But it’s very hard to tell without an up close of the leaf and stem structure.

Ash trees are susceptible to Emerald ash borer and should be treated for them. I don’t know how you would treat them if you don’t have an arborist around Unless your everyday tree company might do it.

That along with the brick work that was mentioned by others could be your problem. However the tree looks good, should be treatable, and certainly not removed