I would be the same as Andrew, maybe £55-60.
Whatever you would charge with ladders you should also charge for WFP.
If you lop off £££ because you are quicker with WFP all you are doing is cutting down your ppotential earnings for the job.
And you still have to negociate those balconies, which for safety's sake should only be with access from the inside....NOT climbing up and over the balconies off a ladder!""!
With balconies like this using WFP is still straight forward.
Simply pinch off the flow, leave pole exended above balcony.
Gain access, whip off brush, clip on smaller pole and clean as normal.
And just reposition the pole so you can get it off the next balcony.
Or of course just do them trad.
But, if you did have WFP don't drop the price because you do so.
It is vital that we don't start dropping prices because we are quicker with WFP.
We have also invested a lot of money in our systems, and running these systems takes up more of our down time too.
And of course running expenses have to be considered.
After spending money on an expensive system you want to earn more and not just earn the same as before.
Any of you that make the change to WFP make sure you keep your prices the same as before.
A job like this one is where you make your money, but whats the point if you slash £10 or £15 off the price
Ian