[David lyddon]

Got a very large house that bulders have spayed with a waterproofer,its all over the windows anyone know how to get it off,help much appreciated.

[AS Window Cleaning]

last time i got the scraper out on the worst of it.  but watch that glass, i am warning customers or risk of scratching before i do it, then if they take responsibility its up to them if there are marks.  Could do with disclaimer really, esp after seeing all the scratched panes being discussed on here! :S

[Pope vader]

have a go on one window and if it doesnt come up tell the custy to get the builders back to clean it

[AJ]

don't bother.  if you damage the glass, you will get the bill. get the builders back.

[Tom White]

Yep, I've had two properties where this has been done too.  I tried and failed to get it off the first property, and I didn't even bother trying on the second.

Just explain to the customer that it won't come off.

[Dave Willis]

I did one with WD40 - worked quite well. Could try meths or white spirit.

[Dave66]

yea i bet bet the builders will come back in a hurry!! assho***

[TomCrowther]

Don't do it. The only way is scraping and it will A) take you and age and B) you will be blamed for any scratches/marks.

[clean]

Get the owner to contact the divvy who did it and sort it,id imagine it would be a nightmare to clean off