Be aware that the "Moselstr." in Frankfurt (wich is near the Main Station) is located very much inside the Red Light District of Frankfurt. Be careful and always watch your stuff if you tend to check it out.

There is another self-service coin-laundry in Sachsenhausen located next to the Fun-District (Klappergasse, Rittergasse) which located in the "Schulstrasse" (opposite the "Abtsgaesschen"). Its quite clean & nice and preffered by many tour productions of bands playing the local clubs in Frankfurt. Sorry - i don´t know the exact address and opening hours, but if you plan to go there I´ll be glad to find it out since I´m quite often in that area. Just send me a pn.