Hi Cliff,
i find with driveway cleaning that people are not sure what they are going to get, they seem to think that you are going to turn up with a little karcher and just give it a rinse it over or even, as a customer of mine this week told me, they have been quoted to scrape the moss out the joints!! i try and sell it more as driveway restoration, bringing it back to as new condition! i've been really busy this year with drives doing it this way, i have my best before and after pics on my flyer and describe exactly what i do
hope this helps??