I have been licensed and insured in Charlotte and Sarasota County since 1989. We have been a father and son business, since 1994. You will not get any new guys in training with us!
Here is a 2 minute video where you can watch a large portion of this blackened, algae infested, tile roof come clean before your eyes, with us using the Roofing Manufacturers specified Cleaning Method and cleaning agents. http://www.tubechop.com/watch/474113
Most homeowners are unaware, that the roofing manufacturers specify exact cleaning methods and chemicals, that may be used on their products, without voiding their warranties.
They all say "DO NOT PRESSURE WASH Roofing"
Left uncleaned, or blasted clean with a pressure washer, a roofs life expectancy can be reduced by over 50% leading to premature roof replacement.
To read quotes from a number of roofing manufacturers and have the ability to actually click on the roofing manufacturers links and read those same words on their websites and technical bulletins, please visit my website and click on "Manufacturer Specifics" {It's on the blue line toward the right} http://www.bergmanpressurewashing.com/
941-698-1959 -Englewood, Venice, Cape Haze, Rotonda, Port Charlotte