Thanks for all of your replies. The neighbor told me that her contractors recommended her to remove the trees before digging up her driveway to prevent the trees from falling down as the tree roots have grown under the driveway. I didn't plan on cutting those trees but they are quite tall and pretty near my house. Probably a good idea to remove them for our safety as well as for the neighbor's benefit. $350 seems a bit expensive for grinding the stumps, though. I'd like to check if it s possible to get a lower cost from another tree company or should I tell the neighbor I'd pay $250? I'm on a limited budget because I ve been renovating my house and have a large debt. Any other advice?