In my practising wfp, I almost flooded a new customers bedroom, because there was a gap between the top frame and the top of the window, and obviously old windows like that didn't have a rubber seal yet.
So how do you spot these potential problem windows, there are so many different types of old windows, that you just can't be 100% certain before you start scrubbing the frame they won't turn the bedroom into an aquarium.......
And how would you clean these? Just focus on the glass and the tiny bit of wood at the top of the window, not doing the top frame, or maybe just wet the brush then scrub? What about the sides of the frame, they could still be prone to leaks right?
What about front doors? Is it okay to clean them? Some have nice porches with door mats, shoes, wellies, the lot, what do you do then? Just whip out the squeegee?
Sorry for all the questions.