Been years since I've done a serious builders clean. Been asked to do one, I'm talking walls of glass panels. To be honest, I'm passed this kind of work, suppose I've got it too easy on my normal work.
Anyhow, before I turn it down, has anything changed from the old 'soap up and scrape' method? Is there any chemical that can be applied then wfp'd off? There's no way I'm doing this by hand!!😁