please feel free to use a ladder
Darran
Looking at the photo's he has made a fair job of a grubby looking building but in my opinion using TFR is no the correct solution, most TFR's are causitc based and if cleaned in sunlight can dry quickly and the residue is very difficult to remove and in some cases creates permanent damage , which could be costly for you.
Using a ladder on this bulding is not the answer purely for H & S reasons and it would take far too long to do the job and would not be cost effective.
The way we do it, is to get your trolley and water fed pole using the overspray nozzle (if its a Ionic pole) and spray from top down over using a mixture of Swift & Sure and pure water once you got to the bottom the product mix has killed the algae spores (which would re grow if using tfr) then go back to top and just rinse of with pure water brusing the same way you do windows , you will end up with a shiny clean building and a well satisfied customer and if you get one like this house I am sure as we do, all the time, get new customers from people watching us clean and then sign them up for a 6 month or annual contract.
The Swift & Sure product was designed to be used with pure water for it beads off quickly is great for intitial and long frequency cleans it kills algae, mould and moss safely and is highly reccommended by cladding and window cleaners across the UK and Europe.
the House that Darren has cleaned and the state it was in using a wfp and a 50 to 1 dilution rate would cost you around 0.39 pence per litre ready to spray, so thats cost effective and you will retain your customers 100%.