Best Drywall Texturing in Washington DC

I called David to help my grandmother, and he no doubt was there within 2 hours which is great. What remains a mystery to me is though why he charged her $550 for less than 1 hr worth of work, for freeing up a clogged bathroom sink drain and getting a garbage disposal back into service. I would recommend him only if you have some excess cash you want to get rid of.