Pressure washer; honda gx90 13hp engine, 15lts/min 3500psi cost around £1100, with a reduction gearbox it will cost an extra £200.......don't think you can start cheap and buy a smaller one, it just won't do the job.turbo lance £120.40m high pressure solution line.
There have been some right cowboys working round our area doing pressure washing using a Halfords £99.99 type PW. I'm not a PW but I get enquiries from time to time and I have thought about it but my window cleaning is full on all the time now and I wouldn't be able to do it justice.I do believe though that if a jobs worth doing its worth doing well and proper kit is essencial. Having seen some of the work produced by the cowboys............