Best Slow Draining in Washington DC

I called around to find local plumbers that could come for a bad leak that required us to turn off the water main. Nobody had availability until the next week. I called Roto-Rooter and they said we'll be there within an hour.
Now I know, if I need something QUICKLY, I'll call Roto-Rooter.

Fantastic customer service. Simei is experienced, friendly and quick. He had a solution for something we've been dealing with for a while in under 15min.