Our kitchen drain clogged, and our own attempts to clear it using a plunger, a snake, and a chemical drain opener were unsuccessful. I called Instant Plumbing, because I've used them before to supply and install Toto toilets and a water softener.
They were able to come the same day and had the problem cleared up in short order. They also serviced the water softener while they were here.
The plumber was pleasant to deal with and efficient.
They are a little on the expensive side, but I find them to always do good work and have good products.