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roof is too steep to effectively pressure wash.  Did  a test scenario with 1/2 ladder hooked over peak trying to stand and PW a section, did the math and way too costly ($10k'ish whole roof/$5k just infected areas).  This how we'd do it in the past as would most.  An aria lift would be feasable for 5k but this is to be our first softwash approach.  High end customer with a lot of pull, just don't wan't them to say  "wow looks much better but theres still some lichen/dead algea visible. thats what I get for $3-4k?"  Obviously I'm informing them need to give some time and hard rain but as you know customers don't care how you get the job done, just end results before they cut the check.

Nah ther not unreasonable at all, prob going to be the easiest customers to deal with and I'm certainly not timid with my approach.  Will be a 4-6 mo job with all the custom work, but I get the feeling from the builder and H.O. that just cleaning the roof is simplistic especially since they (builder and H.O.) are under the impression that it needs to be powerwashed as the only option giving instant results and softwashing they have to wait for full results. 

I'm leaning in the direction of being cautious of promising results being I've not had real life experience with the softwash process.  I have hi res pics of before and after test spots but having probs uploading due to file size being too big I think.  working on that now.

"The maximum file size is 9,765.6 kb"

My files are averaging 5mb

Camera is a new toy/weapon

I think Ed's suggestion on holding on to the last $1k is the way to go and if necc. down the road we'll blast off the lichen (I'm convinced that in short time the dead G.M. will rinse naturally) in the few spots where theres lichen remnants.  Since this is a long term project, we're gonna be there anyway.  the rest of the pmts for the roof/house wash will more than cover labor & materials.  It's the impression/confidence factor that I need to instill in this customer, like I said, theres a ton of other work I'm getting from them.

Thanks for the welcome even though I see myself as a veteran.  Been here a long time, exhaustivley read/researched every thead/question and positioned myself to enter this market/build it up.

The biggest burden going foreward is educating the public/customer and staving off uninformed competition and hacks.

  At least uninformed competition can be enlightentened.  Hacks will always be lowballers.