we do external window clenaing as part of an extra when doing a full house deep clean. so far we've either opened the windows and reach out from inside the property, or if needed used a ladder.
this often takes a good chunk of time, esp when you get difficult windows which are hard to reach so we either struggle to clean from inside for ages or then get the ladder out for just 1 window corner.
i'm looking to improve this. we don't do window cleaning with every job, in fact it's more like once every week/2 weeks, so not often enough to spend loads of money, but perhaps we could push it a little more if we had a system that wasn't as time consuming as the current one so it may increase.
hoping for some suggestions for tools we could get. i've seen the backpacks, but prices vary massively and i've seen people say they need to be used every day else the battery goes.
any suggestions?