Whenever ive had a fascia clean when traditional wuth ladders. A good microfibre clothe and a spray bottle was all I ever needed. Always did a fantastic job. Now on wfp, I turn up the pressure and use a sill brush with being flocked, again does a brilliant job.
However, even tho I consider it a bonus when I get these jobs, I have that much work I shy away from them. So, my question is this. Someone did my customers house fascia, which is fine. However I get a call bk as windows have spotted. Now these have been done a yr on wfp by my friend and 9mnths by myself when friend moved away. So its not technique or oils etc. Im assuming whatever was used on fascia has driped o to frames and been reactivated when I cleaned windows, being unaware. They said chap had a mask on when did it but dont kno what chemicals he used. Now hes done a good job, im peeved at getting the blame and redoing windows and having to reasure about water tds etc. (They are good cust, been doing them for yrs helping a friend) bug she is a cleaner herself but a bit OCD. Just wondered what may have been used?