spend the money!all 4 grand of it!!the only window cleaners that go back to trad are people who dont give it 6 months and realise its a learning curve.your wfp cleaning technique develops through experience.some windows dont come up good with wfp but its usually contaminated water dripping from top perished rubber seals.make sure all frames are really clean and avoid some seals.its less than 5% of windows.
its FEAR thats making you hesitate.we all had it when we first took the plunge.thinking we would all lose shed loads of customers etc.
the truth is i lost around 4 customers straight away and around 10 customers in the 20 months of wfp but ive gained a lot more and add on conny roof/fascia cleans.
it works!!
i earn more thats for sure but its not as much as some window cleaners claim.its not twice as fast for example.
overall over the course of the year its considerably more as you will be at least 20% faster on any working day,youll work in weather that would see you heading off home when on the ladders and you ll be able to take on better paying jobs.
on topic i would not get the ladders out because the weather is freezing.anybody who does really must be a bit mad!!!ice and ladders?

if i need to work and get a job done then ill use a trad pole for upper windows but its very rare.