Dialog, When is it too much?

Reading back over what I've written the past few days, I've noticed it's mostly dialog. While it certainly helps the reader to understand the character's personality and of course what's going on, is it ever too much? My characters are spunky with a lot of attitude. The dialog proves this, but I worry that I am not describing the surroundings enough and am relying too much on the "he said she said" to tell the whole story. I'm guessing these are things that can be remedied during editing and rewriting. For now I suppose I'll keep going as I have been and get to the finish line before worrying about it too much.