I would have my robot climb windows by using suction cups on the legs, whic is not hard to do, and clean them with a sponge preety much like a roomba for windows
By Lmramirez
Other robots from Synthiam community

Kashyyyk's R2-Q5 Droid Build With Ez-B4
Im 3D printing an R2-Q5 imperial droid and using the EZ-b4 as the brains. Im still working on the body and need the rest...

Ericez's Rori The Coffee Robot For Movie
movie videos Hello Friend, Oh so long... i never posted a project, well after my first posted project in here about...

Jstarne1's Omnibot 2000 , Rad 2.0 Vacuum Bot
This project has evolved some , the basic rundown is Im modding two Omnibots , one a regular the other a larger 2000...