Here is the web page:
http://www.pittsburghguttercleaners.com/

I contacted them online for a free quote & they provided a price which we approved.  They arrived within the week, were quick and will even trim vines and check your roof for trouble spots while they're on the ladder.

I went outside during a downpour and ours was the only house I saw that didn't have water overflowing the gutters.  We will use them again.